Cub Cadet 54AFG4RV727 /Yanmar Compact Tractor Model User Manual

Version 1.0

Code No.: CY-0A041-U00500

Sc2450 Operator’s Manual

INTRODUCTION

Thank you for purchasing our tractor product that has been designed and

manufactured based on our state-of-the-art technology and rich expertise in

developing and manufacturing tractor products.

Handle your tractor correctly by following the instructions contained in this

Operator’s Manual so that it provides you long years of reliable and faithful

service.

This manual constitutes an indispensable part of your Cub Cadet Yanmar tractor

product. Always keep the manual readily accessible.

Carefully study this manual to get familiar with the instructions and information

contained in it. These instructions and information are helpful in using your

tractor correctly and safely, and avoiding personal injury and other accidents

during operation and servicing of the tractor.

When using any implement together with your tractor, also carefully study its

operation manual so that you can use it safely, correctly and efficiently.

This manual is organized with sections arranged in a particular order so that you

can better understand the safety messages and the controls on your tractor to

help you operate your tractor correctly and safely. This manual will also help you

answer questions about operation and servicing. An index is available at the end

of this manual to assist you in quickly finding necessary information.

The machine shown in this manual may somewhat differ from your actual

machine. However, this manual will still assist you in understanding the

instructions associated with your tractor.

Before delivery of your machine, your Cub Cadet Yanmar dealer has performed

a pre-delivery check to ensure that your tractor can long remain problem-free.

All information, descriptions, specifications, drawings, illustrations, and pictures

in this manual are based on the latest information available at the time this

manual was published. Yanmar reserves the right to make changes at any time

without prior notice.

Yanmar licenses the usage rights of this manual in North America to CUTSCO

(Compact Utility Tractor Supply LLC).

Welcome to the World of Cub Cadet Yanmar Tractor

Sc2450 Operator's Manual

PICTOGRAPHS

To help assist the operator in operating the tractor, various easy-to-understand pictographs have been

developed and are used throughout this manual. They are listed below together with their meanings.

Safety alert symbol

Turn signal

Fuel level

Revolutions per minute

Engine coolant warning light

Preheater pilot light

Engine oil pressure

Alternator/battery charging light

Engine start

Engine run

Engine shut-off

Preheating

Turn signal

Headlight

Headlight beam

Headlight and work light

Hazard warning light

Slow

Fast

Hydro Static Transmission

(HST) pressure locked

position

Hydro Static Transmission

(HST) pressure released

position

Position for moving only the Mid-Power

Take Off (PTO)

Position for moving the Mid- and Rear-

Power Take Off (PTO) at the same time

Position for moving only the Rear-

Power Take Off (PTO)

Position control raised position

Position control lowered position

Hydraulic flow control/stop

4-wheel drive on

2-wheel drive on

Sc2450 Operator's Manual

TABLE OF CONTENTS

About This Manual............................................................................................................ 1-1

Safety Precautions for the Tractor .................................................................................. 1-2

1. Safety-Alert Symbol................................................................................................................. 1-2

2. Precautions Before Operating Your Tractor............................................................................ 1-3

3. Safe Practices for Operating Your Tractor .............................................................................. 1-4

4. Operate Your Tractor on Slopes ............................................................................................. 1-6

5. Travel on a Road..................................................................................................................... 1-7

6. Safe Practices for Parking Your Tractor.................................................................................. 1-7

7. Operate the Power Take Off (PTO)......................................................................................... 1-8

8. Use the 3-Point Hitch (Option) ................................................................................................1-8

9. Safety Frame (Roll-Over Protective Structure) (ROPS) Precautions ...................................... 1-8

10.Safe Practices for Servicing Your Tractor ............................................................................... 1-9

11.Understand the Tractor Safety Decals .................................................................................. 1-11

 Safety-Alert Symbol .............................................................................................................................................1-11

 Care of DANGER, WARNING and CAUTION Decals.........................................................................................1-11

Specifications of the Tractor ........................................................................................... 3-1

1. Specifications Table ................................................................................................................ 3-1

2. Traveling Speeds (Reference) ................................................................................................ 3-2

Tractor Control Overview................................................................................................. 5-1

1. Overview ................................................................................................................................. 5-1

2. Operator Station Controls........................................................................................................ 5-2

 Names of Components..........................................................................................................................................5-2

 Function of Components .......................................................................................................................................5-3

3. Instrument Panel, Switches and Hand Controls.................................................................... 5-11

Pre-Operation Check of Tractor ...................................................................................... 6-1

1. Pre-Operation Check............................................................................................................... 6-1

2. Precautions Before the Operation........................................................................................... 6-1

3. Routine Check......................................................................................................................... 6-1

4. Prevent Damage to the Plastic Surfaces and Painted Surfaces ............................................. 6-1

1. SAFETY PRECAUTIONS ................................................................................... 1-1

2. SERVICE THE PRODUCT .................................................................................. 2-1

3. SPECIFICATIONS............................................................................................... 3-1

4. IMPLEMENT CAPACITIES................................................................................. 4-1

5. NAMES AND FUNCTIONS OF COMPONENTS ................................................ 5-1

6. PRE-OPERATION CHECK ................................................................................. 6-1

Sc2450 Operator's Manual

TABLE OF CONTENTS

1. Start the Engine....................................................................................................................... 7-2

 Opening/Closing the Fuel Shut-Off Valve..............................................................................................................7-2

 Adjust the Operator's Seat.....................................................................................................................................7-2

 Reverse the Operator's Seat .................................................................................................................................7-2

 Fasten the Retractable Seat Belt...........................................................................................................................7-4

 Engage the Parking Brake.....................................................................................................................................7-5

 Check the Lights on the Instrument Panel.............................................................................................................7-8

 Warm Up the Engine in Cold Weather ..................................................................................................................7-9

2. Shut Down the Engine........................................................................................................... 7-10

3. Restart a Stalled Engine........................................................................................................ 7-11

Operate the Tractor........................................................................................................... 8-1

1. Operate a New Tractor............................................................................................................ 8-2

2. Raise and Lower the Roll-Over Protective Structure (ROPS) ................................................. 8-3

 Lower (Fold Down) the Roll-Over Protective Structure (ROPS) ............................................................................8-3

 Raise (Unfold) the Roll-Over Protective Structure (ROPS) ...................................................................................8-4

3. Operate the Tractor................................................................................................................. 8-5

 Function of Implement Lock Lever ........................................................................................................................8-7

 Engage the Cruise Control ....................................................................................................................................8-9

 Disengage the Cruise Control ...............................................................................................................................8-9

4. Stop the Tractor..................................................................................................................... 8-10

 Stop in an Emergency .........................................................................................................................................8-10

5. Verify During Driving ............................................................................................................. 8-11

 Fuel Gauge..........................................................................................................................................................8-12

 Engine Coolant Warning Light.............................................................................................................................8-12

 Hour Meter...........................................................................................................................................................8-13

6. Park the Tractor..................................................................................................................... 8-14

 Apply the Parking Brake ......................................................................................................................................8-14

 Release the Parking Brake..................................................................................................................................8-14

7. Safe Practices for Operation ................................................................................................. 8-15

 Engage the Differential Lock ...............................................................................................................................8-15

 Disengage the Differential Lock...........................................................................................................................8-15

 Hydro Static Transmission (HST) Pressure Release Lever.................................................................................8-20

 Uphill/Downhill .....................................................................................................................................................8-23

 Steep Downhill.....................................................................................................................................................8-23

8. Accessory.............................................................................................................................. 8-24

 12V DC Outlet .....................................................................................................................................................8-24

1. Operate the Power Take Off (PTO)......................................................................................... 9-1

 Rear- Power Take Off (PTO).................................................................................................................................9-2

 Mid- Power Take Off (PTO)...................................................................................................................................9-2

 Engage the Power Take Off (PTO) .......................................................................................................................9-2

 Disengage the Power Take Off (PTO)...................................................................................................................9-4

2. Install an Implement to the Power Take Off (PTO) Drivelines................................................. 9-5

3. Operate the Power Take Off (PTO) while the Tractor is Traveling

in the Reverse Direction (Reverse Override Function)............................................................ 9-5

7. OPERATE THE ENGINE .................................................................................... 7-1

8. OPERATION ....................................................................................................... 8-1

9. POWER TAKE OFF (PTO) ................................................................................. 9-1

TABLE OF CONTENTS

Sc2450 Operator's Manual

1. 3-Point Hitch.......................................................................................................................... 10-1

 Right Lift Link.......................................................................................................................................................10-2

 Top Link...............................................................................................................................................................10-2

 Sway Link ............................................................................................................................................................10-2

 Hitch ....................................................................................................................................................................10-2

1. 3-Point Hitch Control System ................................................................................................ 11-1

 Operate the 3-Point Hitch Control/Cutting Height Adjustment Lever to Raise or Lower the 3-Point Hitch ..........11-1

 Hydraulic Flow Control/Stop Knob.......................................................................................................................11-2

1. Tires ...................................................................................................................................... 12-1

 Tire Inflation Pressure .........................................................................................................................................12-2

 Wheel Bolt Tightening Torque .............................................................................................................................12-2

2. Ballast.................................................................................................................................... 12-3

 Front Ballast ........................................................................................................................................................12-3

 Rear Ballast .........................................................................................................................................................12-4

1. Maintenance Check List ........................................................................................................ 13-1

 Tractor .................................................................................................................................................................13-1

2. Lubricants.............................................................................................................................. 13-3

3. Replacement Parts................................................................................................................ 13-3

■

Warranty and Repair of the Engine....................................................................................... 14-1

Periodic Service of the Tractor...................................................................................... 14-2

1. Open/Close the Hood............................................................................................................ 14-2

 Open the Hood ....................................................................................................................................................14-2

 Close the Hood....................................................................................................................................................14-3

2. Daily Checks ......................................................................................................................... 14-4

 Visual Checks......................................................................................................................................................14-4

 Refill the Fuel Tank..............................................................................................................................................14-4

 Check the Engine Oil Level .................................................................................................................................14-8

 Check the Transmission/Hydraulic Oil Level .......................................................................................................14-9

 Check the Radiator Hoses and Clamps ............................................................................................................14-10

 Clean the Radiator Cooling Fins and Screen ....................................................................................................14-10

 Clean the Rear Grille Screen.............................................................................................................................14-11

 Check the Cooling System ................................................................................................................................14-12

 Check the Fuel Line...........................................................................................................................................14-13

 Check the Intake Air Hoses and Clamps ...........................................................................................................14-13

 Check the Safety Interlock System....................................................................................................................14-14

 Check and Adjust the Brake ..............................................................................................................................14-16

 Check the Seat Belt and Roll-Over Protective Structure (ROPS)......................................................................14-16

 Check the Wheel Bolt Tightening Torque..........................................................................................................14-17

 Check the Inflation Pressure .............................................................................................................................14-17

 Check the Light Bulbs........................................................................................................................................14-18

 Check the Tie-rod Rubber Boots .......................................................................................................................14-18

 Check and Clean the Electrical System ............................................................................................................14-18

 Adjust Front Axle Pivot ......................................................................................................................................14-19

10.3-POINT HITCH (Option) ................................................................................. 10-1

11.HYDRAULIC SYSTEM...................................................................................... 11-1

12.TIRES, WHEELS AND BALLAST .................................................................... 12-1

13.MAINTENANCE ................................................................................................ 13-1

14.PERIODIC SERVICE ........................................................................................ 14-1

Sc2450 Operator's Manual

TABLE OF CONTENTS

 Check the Hydraulic Hoses ...............................................................................................................................14-20

3. First 50 Hours...................................................................................................................... 14-22

 Change the Engine Oil ......................................................................................................................................14-22

 Replace the Engine Oil Filter .............................................................................................................................14-22

 Change the Transmission/Hydraulic Oil ............................................................................................................14-22

 Replace the Transmission/Hydraulic Oil Filter...................................................................................................14-22

4. Every 50 Hours.................................................................................................................... 14-22

 Check the Front Axle Oil Level ..........................................................................................................................14-22

 Checking the Fuel/Water Separator ..................................................................................................................14-23

 Adjust the Fan Belt ............................................................................................................................................14-24

 Grease and Lubricate ........................................................................................................................................14-25

5. Every 100 Hours.................................................................................................................. 14-27

 Engine Oil ..........................................................................................................................................................14-27

 Change the Engine Oil ......................................................................................................................................14-27

 Clean the Fuel/Water Separator ........................................................................................................................14-28

 Service the Air Cleaner Element .......................................................................................................................14-29

6. Every 200 Hours.................................................................................................................. 14-31

 Replace the Engine Oil Filter .............................................................................................................................14-31

 Adjust the Toe-in ...............................................................................................................................................14-32

7. Every 300 Hours.................................................................................................................. 14-33

 Transmission/Hydraulic Oil................................................................................................................................14-33

 Change the Transmission/Hydraulic Oil and Replace the Transmission/Hydraulic Oil Filter ............................14-33

8. Every 500 Hours.................................................................................................................. 14-35

 Front Axle Case Oil ...........................................................................................................................................14-35

 Change the Front Axle Case Oil ........................................................................................................................14-35

 Replace the Fuel Filter Element (in the Fuel/Water Separator).........................................................................14-36

 Replace the Fuel Filter ......................................................................................................................................14-36

9. Every 1000 Hours................................................................................................................ 14-37

 Coolant ..............................................................................................................................................................14-37

 Flush the Cooling System..................................................................................................................................14-38

 Change the Coolant...........................................................................................................................................14-40

10.Every 1 Year........................................................................................................................ 14-41

 Replace the Air Cleaner Element ......................................................................................................................14-41

 Flush the Cooling System..................................................................................................................................14-41

 Change the Coolant...........................................................................................................................................14-41

11.Every 2 Years...................................................................................................................... 14-41

 Replace the Radiator Hoses and Clamp ...........................................................................................................14-41

 Replace the Fuel Line........................................................................................................................................14-41

 Replace the Intake Air Hose..............................................................................................................................14-41

 Replace the Hydraulic Hoses ............................................................................................................................14-41

 Replace Power Steering Hose ..........................................................................................................................14-41

TABLE OF CONTENTS

Sc2450 Operator's Manual

1. Battery ................................................................................................................................... 15-1

 Special Note for the Battery.................................................................................................................................15-1

 Service the Battery Safely ...................................................................................................................................15-2

 Inspect the Battery...............................................................................................................................................15-3

 Remove and Install the Battery ...........................................................................................................................15-3

 Clean the Battery and Terminals .........................................................................................................................15-4

 Use a Booster Battery .........................................................................................................................................15-5

2. Fuses..................................................................................................................................... 15-6

 Replace the Accessory Fuses .............................................................................................................................15-6

 Check the Alternator Fuse and the Main Fuse ....................................................................................................15-6

3. Bulb ....................................................................................................................................... 15-7

 Replace the Headlight Bulb .................................................................................................................................15-7

 Replace the Work Light Bulb ...............................................................................................................................15-8

 Replace the Tail Light Bulb..................................................................................................................................15-9

 Replace the Turn Signal/Hazard Lights Bulb.......................................................................................................15-9

 Replace the Instrument Panel Light Bulb ..........................................................................................................15-10

4. Headlights ........................................................................................................................... 15-10

 Adjust the Headlights.........................................................................................................................................15-10

1. Safe Practices for Storage .................................................................................................... 16-1

 Fuel......................................................................................................................................................................16-2

 Engine .................................................................................................................................................................16-2

2. Prepare the Stored Tractor for Operation.............................................................................. 16-3

1. Guide in Using the Troubleshooting Table............................................................................ 17-1

15.SERVICE THE ELECTRICAL SYSTEM ........................................................... 15-1

16.STORE THE TRACTOR ................................................................................... 16-1

17.TROUBLESHOOTING ...................................................................................... 17-1

18.OPTIONS .......................................................................................................... 18-1

19.INDEX................................................................................................................ 19-1

1-1

1. SAFETY PRECAUTIONS

Sc2450 Operator's Manual

1. SAFETY PRECAUTIONS

About This Manual

This Operator’s Manual presents you messages that

help you remain aware of potential hazards and

possible machine damage in operating and servicing

your machine. Carefully study all the information in it

so that you can avoid personal injury and damaged

properties.

NOTE

●Unless otherwise stated, the expressions–right-

hand side, left-hand side, front side, and rear side,

used throughout this manual see the sides relative

to the direction of forward movement with the

tractor.

●All pictures in this manual show the tractor

with the front loader and backhoe installed.

Refer to the front loader and backhoe

Operator's Manuals for the safe operating

instructions and all other information relating

to these attachments.

Avoid injury:

●Always remove the backhoe before installing

the mid-mount mower.

●The tractor can be used when the front loader

and either the mid-mount mower or the

backhoe is installed.

●Never install the mid-mount mower and the

backhoe at the same time.

3016402

RIGHT

REAR

LEFT

FRONT

! WARNING

1-2

1. SAFETY PRECAUTIONS

Sc2450 Operator's Manual

Safety Precautions for the Tractor

Indicates a hazardous situation which, if not

avoided, will result in death or serious injury.

Indicates a hazardous situation which, if not

avoided, could result in death or serious injury.

Indicates a hazardous situation which, if not

avoided, could result in minor or moderate injury.

Indicates a situation which can cause damage to the

machine, personal property and/or the environment

or cause the equipment to operate improperly.

IMPORTANT: Means that implement or

property damage could occur if instructions are

ignored.

NOTE: Provides useful information.

1. Safety-Alert Symbol

The safety-alert symbols appear with

most safety statements. It means

attention, become alert, your safety is

involved!

Please read and strictly observe the

message that follows the safety-alert

symbols.

! DANGER

! WARNING

! CAUTION

NOTICE

WARNING: READ AND FOLLOW ALL INSTRUCTIONS IN THIS MANUAL BEFORE

ATTEMPTING TO OPERATE YOUR TRACTOR. FAILURE TO COMPLY WITH THESE

INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.

WARNING: The engine exhaust, some of its constituents, and certain vehicle components

contain or emit chemicals known to the State of California to cause cancer, birth defects or other

reproductive harm.

DANGER: Your tractor was built to be operated according to the rules for safe operation in this

manual. As with any type of power equipment, carelessness or error on the part of the operator can

result in serious injury. To help prevent accidents, read and take the following precautions before

operating this tractor. Failure to observe the following safety instructions could result in serious

injury or death.

1-3

1. SAFETY PRECAUTIONS

Sc2450 Operator's Manual

1. Understand the performance and limitations of

your tractor. Carefully study this Operator’s

Manual and learn the instructions in it before

operating or servicing your tractor. Keep the

Operator’s Manual in an easily accessible place.

2. Strictly follow the statements given in the

DANGER, CAUTION and WARNING safety

decals attached to the tractor.

3. For operator safety, always install the Roll-Over

Protective Structure (ROPS).

Keep the seat belt fastened while operating the

tractor with the Roll-Over Protective Structure

(ROPS). This practice will reduce the possibility of

injury or death in the event of roll-over accident.

If the Roll-Over Protective Structure (ROPS) has

been removed for any reason, be sure to reinstall

all the associated parts before operating the

tractor.

Do not alter the Roll-Over Protective Structure

(ROPS). The altered Roll-Over Protective

Structure (ROPS) may fail to provide the

designed protection.

Replace the damaged Roll-Over Protective

Structure (ROPS) immediately. Contact your local

Cub Cadet Yanmar dealer for technical

assistance.

NEVER alter or repair the Roll-Over Protective

Structure (ROPS). Welding, bending, drilling,

grinding, or cutting may weaken the Roll-Over

Protective Structure (ROPS). Contact your local

Cub Cadet Yanmar dealer for technical

assistance.

4. Always fasten the seat belt while operating the

tractor with the Roll-Over Protective Structure

(ROPS).

Check the seat belt for any damage. Replace the

damaged seat belt immediately. Contact your

local Cub Cadet Yanmar dealer for technical

assistance.

Do not use the seat belt if the tractor does not

have the Roll-Over Protective Structure (ROPS).

5. Check overhead clearance carefully before

driving under power lines, wires, bridges or low

hanging tree branches, before entering or leaving

building, or in any other situation where the

operator and/or Roll-Over Protective Structure

(ROPS) may be struck, which could result in

serious injury.

6. Make sure that any person who will operate the

tractor studies this Operator’s Manual before

operation. Know the controls and how to stop the

machine quickly.

7. Make sure that any person or obstacle is not

under or around the tractor before and during

operation. Be sure to maintain sufficient overhead

clearance above the tractor.

8. Do not operate your tractor and/or implement

installed to it while you are under the influence of

alcohol, drug, medicine or controlled substance(s)

or when you are not fit for operation of your

tractor.

9. For operation, wear close-fitting clothing. When

operating the tractor or working around the

tractor, do not wear loose-fitting clothes or

jewelry, or baggy or damaged clothing. When

caught by a moving part of the tractor, an

accident can result. Cut-off pants or shorts do not

provide protection against flying debris. Never

operate the tractor in bare feet, sandals, or

sneakers. Wear additional protections including

non-slip safety boots or shoes, and safety

goggles and gloves, etc. as appropriate or

required by currently applicable local laws and

regulations. Wear ear protection in a noisy

environment to prevent hearing damage and

reduce operator fatigue.

10.NEVER allow a passenger on any portion of the

tractor.

11.Remain seated in the operator’s station when

operating the tractor.

12.Make sure that the brakes, other mechanical

components are free from misadjustment and

excessive wear. Replace any excessively worn or

damaged component immediately. At regular

intervals, check that all the nuts, bolts and screws

are appropriately tightened. (For details, see

“Chapter 13. MAINTENANCE”)

2. Precautions Before Operating Your Tractor

1-4

1. SAFETY PRECAUTIONS

Sc2450 Operator's Manual

13.Always keep your tractor clean. Dust, grease or

grass clippings accumulated on your tractor can

lead to fire accidents or personal injury.

14.Use the handholds and running board steps when

getting on and off the tractor to help prevent

accidental falls. Keep the running boards clear of

mud and debris.

15.Only use the implements that satisfy the

requirements in this manual or are approved by

your Cub Cadet Yanmar dealer. (See “4.

IMPLEMENT CAPACITIES”)

16.When using only front or rear mounted

implements, install an appropriate weight(s) or

counter balance to the front or rear of your tractor

to prevent upsetting of the tractor. If you choose

to use the front loader, mount an implement or

ballast to the 3-point hitch in order to get the

tractor to stabilize. Observe the instructions about

safety in the manual for the implement to be used.

17.Do not attempt to modify your tractor. Modification

can deteriorate the performance and/or safety of

your tractor, possibly leading to personal injury or

property damage.

1. Starting Your Tractor

1. Remain seated in the operator’s station when

starting the engine, or actuating the levers or

controls. Do not start the engine or operate

controls while standing beside the tractor.

2. Before starting the engine, make sure that the

forward and reverse drive pedal are in the neutral

positions, the parking brake is engaged, and the

Power Take Off (PTO) is disengaged.

3. Always keep the seat belt fastened around your

waist whenever the tractor has the Roll-Over

Protective Structure (ROPS).

4. Start the engine of your tractor only by using the

starter key switch. Do not attempt to start the

engine by short-circuiting across the starter

solenoid terminals with a jumper wire, or by

bypassing the safety start switch. This defeats the

safety interlock circuit and the tractor may begin

to move and/or the Power Take Off (PTO) shafts

may begin to rotate, possibly leading to personal

injury or property damage.

5. Do not run or idle the engine in a confined area

that is poorly ventilated or not ventilated at all.

The engine emits carbon monoxide gas that is

colorless, odorless and can cause death.

6. Before operation, check that all the safety

features are functioning correctly. Never tamper

with safety devices. Check their proper operation

regularly. Contact your Cub Cadet Yanmar dealer

if safety devices malfunction.

7. Avoid accidental contact with control pedals while

the engine is running, as this can cause

unexpected movement of the tractor.

8. Never leave a running machine unattended.

9. Do not attach or use towed equipment by a

drawbar or a drawing device/attachment. Usage

of the drawbar or drawing device/attachment is/

are not allowed in this tractor.

3. Safe Practices for Operating Your Tractor

1-5

1. SAFETY PRECAUTIONS

Sc2450 Operator's Manual

2. Working with Your Tractor

1. Make sure that all the covers and guards are in

correct position. Replace any missing or

damaged cover immediately.

2. Before turning or when traveling on a rough

terrain, or before stopping, decrease the tractor

speed in order to prevent upsetting.

3. Use extra caution when operating over rough

ground, when crossing ditches or slopes, and

when turning corners.

4. Do not attempt to turn with the differential lock

engaged. Attempting to turn the tractor while the

differential lock is engaged can lead to a roll-over.

5. Stay clear of ditches, holes, embankments or

ponds. A hazard of tractor upset can occur more

easily if the ground is soft or wet. Before entering

an area covered with tall grass, walk the area to

detect any obstacles.

6. Always watch where you are going, especially at

blind corners, trees, or other objects that can

obscure your vision. Remain alert when you are

approaching the end of a row, trees or any

obstacle.

7. When two or more people are working in one

area, always keep in good communication with

each other.

8. Do not get on or off a moving tractor.

9. Make certain all tractor lights are illuminated when

operating at night.

3. Considerations for Safety of Children

Tragic accidents can occur if the operator is not alert

to the presence of children. Children are often

attracted to the machine. They do not understand the

dangers. Never assume they will remain where you

last saw them.

1. Keep children out of the operating area and in the

watchful care of an adult other than the operator.

2. Be alert if a child enters the work area, stop your

tractor immediately.

3. Never allow a child to ride on the tractor. They

may fall off and be seriously injured or interfere

with safe machine operation.

4. Never allow children under 16 years old to

operate the machine. Children 16 years and over

should only operate machine under close parental

supervision and proper instruction.

5. Be extremely careful when backing the tractor.

Before and during backing, look back and

downward. A child may be in your path.

6. Use extra care when approaching blind corners,

shrubs, trees or other objects that may obscure

your vision of a child or other hazard.

7. Never allow a child to play on the tractor or

implement.

8. Keep children away from hot or running engines.

They may suffer burns.

9. Park your tractor on a solid, flat and level place.

Engage the parking brake securely, remove the

key from the starter key switch to prevent

unauthorized operation. If parking on a slope is

unavoidable, park the tractor across the slope

and chock the wheels.

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1. SAFETY PRECAUTIONS

Sc2450 Operator's Manual

On a slope, the tractor is less stable and more prone

to tip-over, possibly leading to serious injury or death.

Remain very cautious when your tractor is on any

slope.

DO:

●Operate up and down slopes, not across.

●Remove obstacles such as rocks, limbs, etc.

●Watch for holes, ruts or bumps. Uneven terrain

could overturn the machine. Tall grass can hide

such obstacles.

●Place the transmission in the slow range when

climbing or descending slopes.

●Keep all movement on the slopes slow and

gradual. Do not make sudden changes in speed or

direction. Rapid engagement or braking could

cause the front of the machine to lift and rapidly flip

over backwards which could cause serious injury.

●Avoid starting or stopping on a slope. If tires lose

traction, disengage the Power Take Off (PTO) and

proceed slowly straight down the slope.

●To avoid upset, move backward up a steep slope.

If backing on the slope is not comfortable, do not

attempt to continue. Avoid an extremely steep

slope.

●When moving forward to escape from a ditch, or

deep mud, or when traveling on a steep slope, the

risk of the tractor upsetting backward is high.

Always move backward to escape these situations.

In the four-wheel drive mode, special caution is

needed to avoid false confidence in the tractor’s

ability to climb slopes.

DO NOT:

●Do not mow near drop-offs, ditches or

embankments. The mower could suddenly turn

over if a wheel goes over the edge of a cliff or ditch,

or if an edge caves in.

WARNING

●Before approaching a slope, select an

appropriate speed setting. Be sure to run the

tractor at a lower speed on slopes.

●Suddenly starting the tractor on an uphill can

cause the front wheels to jump off the ground,

and this situation poses an extreme danger. To

avoid this problem, run the engine at a lower

speed, and gently start the tractor.

●Do not park the tractor on a slope. If parking on

a slope is unavoidable, chock the tires, and

engage the parking brake securely.

4. Operate Your Tractor on Slopes

A2019005

1-7

1. SAFETY PRECAUTIONS

Sc2450 Operator's Manual

1. Disengagement of the 4-wheel drive is

recommended.

2. Remember that the braking characteristics differ

between the two and four wheel drive modes. Be

aware of the current drive mode and use

carefully.

3. Before turning, always slow down the tractor.

High-speed turn may cause the tractor to tip over.

4. When traveling on a road, be sure that the Slow

Moving Vehicle (SMV) emblem is on the tractor

and is clearly visible. Use the hazard lights and

turn lights as required by the currently effective

local laws or regulations.

5. Strictly observe all the currently effective local

traffic and safety laws and regulations.

6. Turn ON the headlights as required by the

currently effective local laws or regulations.

7. Always travel at a speed that allows you to

maintain control of the tractor.

8. Avoid engaging differential lock while traveling on

a road. It may cause the operator to lose control

of the tractor.

9. While traveling on a road, do not suddenly turn

the steering wheel. Such an action can lead to

loss in the stability of the tractor, and can cause

an extremely dangerous situation.

10.While on a road, do not attempt to operate an

implement. During transportation, put the 3-point

hitch control/cutting height adjustment lever in its

raised position and lock it with the position stop

knob. Do not fully close the hydraulic flow control/

stop knob.

1. Disengage the Power Take Off (PTO), lower the

implement to the ground, set the forward and

reverse drive pedal in the neutral positions,

engage the parking brake securely, stop the

engine and remove the key from the starter key

switch.

2. Before leaving your tractor, be sure the tractor is

completely stopped.

3. Do not park on a steep slope. Rather, park on

solid, flat, level ground whenever possible. If

parking on a slope is unavoidable, park the tractor

across the slope, and lower the implement to the

ground and chock the wheels.

4. Allow the tractor to cool at least 5 minutes before

being stored.

5. Travel on a Road

6. Safe Practices for Parking Your Tractor

1-8

1. SAFETY PRECAUTIONS

Sc2450 Operator's Manual

1. Before getting off the tractor, connecting/

disconnecting an implement, adjusting, cleaning

or servicing a Power Take Off (PTO)-driven

implement, make sure that all the moving

components are at a standstill.

2. Ensure that the Power Take Off (PTO) shaft cover

is always in place. Replace the Power Take Off

(PTO) shaft cap only when the shaft is at a

standstill.

3. Before installing or operating Power Take Off

(PTO)-driven implement, carefully study the

manufacturer’s Operator’s Manual and the safety

decals on the implement.

4. When installing the Power Take Off (PTO)- driven

implements, engage the parking brake securely

and chock the four wheels. Do not approach or

access any rotating component.

1. Use the 3-point hitch only in conjunction with the

implement that is specifically designed for use

with the 3-point hitch.

2. Before using a 3-point hitch mounted implement,

the appropriate counterbalance may need to be

installed on the front of the tractor.

Your tractor is equipped with a Roll-Over Protective

Structure (ROPS) which must be maintained in a fully

functional condition. Check overhead clearance

carefully before driving under power lines, wires,

bridges or low hanging branches, before entering or

leaving buildings, or in any other situation where the

operator and/or Roll-Over Protective Structure

(ROPS) may be stuck, which could result in serious

injury.

1. Never modify the Roll-Over Protective Structure

(ROPS) in any way.

2. Never attempt to straighten or reweld any part of

the main frame or retaining brackets that have

been damaged. Doing so may weaken the

structure and endanger your safety.

3. Never secure any parts on the main frame or

attach the safety frame with anything other than

the special fasteners specified.

4. Never attach ropes, chains, or cables to the Roll-

Over Protective Structure (ROPS) for pulling

purposes.

5. Although the Roll-Over Protective Structure

(ROPS) provides the operator the maximum

protection possible, never take unnecessary

risks.

7. Operate the Power Take Off (PTO)

8. Use the 3-Point Hitch (Option)

9. Safety Frame (Roll-Over Protective Structure) (ROPS) Precautions

1-9

1. SAFETY PRECAUTIONS

Sc2450 Operator's Manual

Before starting any servicing work, park your tractor

on solid, level ground, engage the parking brake

securely, disengage the Power Take Off (PTO),

lower the implement to the ground, set the forward

and reverse drive pedal to the neutral position, stop

the engine and remove the key from the starter key

switch.

1. Always keep a first-aid kit and a fire extinguisher

readily available.

2. Before accessing the engine, muffler, radiator or

other possibly hot components, wait until the

tractor has fully cooled off.

3. Use extreme care in handling diesel fuels. They

are extremely flammable and the vapors are

explosive. Use only an approved container.

4. Be sure to stop the engine before refueling. After

refueling, replace fuel cap securely and wipe off

any spilled fuel before starting the engine as it

may cause a fire or explosion.

5. Do not smoke while refueling. Keep any spark or

open flame away from the fuel tank.

6. Never refuel the machine indoors because fuel

vapors will accumulate in the area.

7. Never store the fuel container or machine inside

where there is an open flame or spark, such as a

gas hot water heater, space heater or furnace.

8. Do not smoke while working around the battery.

Keep any spark or open flame away from the

battery. The battery emits hydrogen and oxygen

gas, in particular, during recharging and can pose

a hazard of explosion.

9. Prior to “jump starting” a tractor that has a fully

depleted battery, read and follow all the

instructions in “Chapter 15. SERVICE THE

ELECTRICAL SYSTEM”.

10.Carefully loosen the radiator cap to the first stop,

and allow excessive pressure to escape, and only

then remove the radiator cap. If the tractor is

equipped with a coolant reserve tank, add coolant

or water to the reserve tank, not to the radiator

(See “Check the Cooling System” on page 14-12

in “Chapter 14. PERIODIC SERVICE”).

11.Before working on or around electric components,

first disconnect the battery ground cable.

12.To prevent a spark occurring from short-circuit,

disconnect the battery grounding (–) terminal first

and reconnect last.

13.The operator must not mount a tire onto a rim.

Only qualified personnel should do this task.

14.Always keep the tires at a correct pressure level.

Do not exceed the recommended tire pressure

specified in the Operator’s Manual.

15.Keep the tractor securely supported while

changing the wheels. Be sure to tighten the wheel

bolts at the specified tightening torque.

10. Safe Practices for Servicing Your Tractor

1-10

1. SAFETY PRECAUTIONS

Sc2450 Operator's Manual

16.Avoid working under any hydraulically supported

devices. Such devices can settle, suddenly leak

down, or be accidentally lowered. If working

beneath the tractor, or an implement, is

unavoidable, be sure to support the tractor or

implement with appropriate stands or lift

apparatus.

17.High pressure hydraulic fluid, when released, can

penetrate human skin, possibly leading to serious

personal injury. Before disconnecting any

hydraulic line, fully release the internal pressure.

Before exerting a pressure to the hydraulic

system, make sure that all connections are tight

and all the lines, pipes and hoses are free from

fissure/crack or any other damage.

18.Check brake operation frequently. Adjust and

service as required.

19.Do not change the engine governor settings or

overspeed the engine. Excessive engine speeds

are dangerous.

20.Observe proper disposal laws and regulations.

Prior to disposal, determine the proper method to

dispose of waste from your local Environmental

Protection Agency. Recycling centers are

established to properly dispose of materials in an

environmentally safe fashion.

21.Use proper containers when draining fluids. Do

not use food or beverage containers that may

mislead someone into drinking from them.

Properly dispose of the containers immediately

following the draining of fluids.

22.DO NOT pour oil or other fluids into the ground,

down a drain or into a stream, pond, lake or other

body of water. Observe Environmental Protection

Agency regulations when disposing of oil, fuel,

coolant, brake fluid, filters, batteries, tires and

other harmful waste.

23.We do not recommend the use of a pressure

washer or garden hose to clean your unit. They

may cause damage to electrical components;

spindles; pulleys; bearings; or the engine. The

use of water will result in shortened life and

reduce serviceability.

WARNING: YOUR RESPONSIBILITY: Restrict the use of this power machine to persons who

read, understand and follow the warnings and instructions in this manual and on the

machine.

1-11

1. SAFETY PRECAUTIONS

Sc2450 Operator's Manual

■ Safety-Alert Symbol

The tractor safety decals illustrated in this section are

provided in critical areas on the tractor so that people

including the operator can remain always aware of

potential hazards.

The tractor safety decals contain the words DANGER,

WARNING and CAUTION together with the safety-alert

symbols. DANGER and WARNING stand for the most

serious hazards.

The Operator’s Manual also contains special safety

messages that explain potential hazards about which the

operator must remain cautious. These messages are

presented together with the word CAUTION and the

safety-alert symbols.

■ Care of DANGER, WARNING and CAUTION

Decals

1. Always keep all the danger, warning and caution

decals clean and clearly legible.

2. Clean the danger, warning and caution decals with

soap water, and wipe dry with clean soft cloth.

3. Replace damaged or missing danger, warning and

caution decals with new decals available from your

local Cub Cadet Yanmar dealer.

4. If a component having a danger, warning or caution

decals is replaced with a new one, make sure that a

new decal is on the same location as on the old

component.

5. Affix a new danger, warning or caution decals flat on a

clean, dry surface, squeezing out trapped air.

11. Understand the Tractor Safety Decals

1-12

1. SAFETY PRECAUTIONS

Sc2450 Operator's Manual

(A) CY-1A8160-65300

TO AVOID INJURY OR DEATH:

●Do not start engine by shorting across starter

terminals or bypassing safety start switch.

●Start engine only from seat with transmission and

PTO OFF.

(B) CY-1A7880-65610

STAY CLEAR OF ENGINE FAN AND FAN BELT

3016482

(A)

! DANGER

1A8160-65300

DANGER

Do not start engine by

䇭shorting across starter

䇭terminals or bypassing

䇭safety start switch.

Start engine only from

䇭seat with transmission

䇭and PTO OFF.

TO AVOID INJURY OR DEATH:

P3014961

(B)

! WARNING

WARNING

㪈㪘㪎㪏㪏㪇㪄㪍㪌㪍㪈㪇

STAY CLEAR OF

ENGINE FAN

AND FAN BELT

1-13

1. SAFETY PRECAUTIONS

Sc2450 Operator's Manual

1. Adding of water is done through the sub-tank.

2. Before starting, make sure that water level is up

to the “Full” mark.

3. If water level is low, remove the cap of the sub-

tank and add water until the “Full” mark is

reached.

(D) CY-1A8160-51520

●SHIELD EYES: EXPLOSIVE GASES CAN CAUSE

BLINDNESS OR INJURY.

●NO SPARKS, FLAMES, SMOKING.

●SULFURIC ACID CAN CAUSE BLINDNESS OR

SEVERE BURNS.

●FLUSH EYES IMMEDIATELY WITH WATER.

SEEK MEDICAL HELP RIGHT AWAY.

●KEEP OUT OF REACH OF CHILDREN. DO NOT

TIP.

●KEEP VENT CAPS TIGHT AND LEVEL.

P3014947

(C)

! CAUTION

P3014933

(D)

! DANGER/POISON (E)

P3013722a

1-14

1. SAFETY PRECAUTIONS

Sc2450 Operator's Manual

(E) CY-1A7880-65601

READ OPERATOR'S MANUAL

1. Do not operate the machine without guard shields

and safety devices in place and working.

2. Keep all riders off tractor during operation.

3. Make certain everyone is clear of machine before

starting engine or operation.

4. Keep hands, feet and clothing away from power-

driven parts.

5. Use seat belt.

6. Reduce speed when turning or operating around

hazards, on rough ground or steep slopes.

7. Do not allow operation of the machine by

untrained personnel.

8. Stop engine, lower implement to ground and lock

park brake before dismounting.

9. Wait for all movement to stop before servicing

machinery.

10.Remove key if leaving tractor unattended.

11.Securely support tractor and implements before

working underneath.

12.On public roads use SMV emblem and hazard

lights.

13.Do not jump if machine tips.

(F) CY-1A7880-65630

IMPORTANT

12V DC OUTLET

1. DO NOT CONNECT A LIGHT OR LOAD OF

MORE THAN 120 WATTS.

2. DO NOT USE AS A CIGARETTE LIGHTER.

3. REMOVE PLUG FROM SOCKET WHEN NOT IN

USE.

4. DO NOT USE WHEN WET.

P3014940

(E)

! WARNING

WARNING

1A788

5601

P3014958

(F)

IMPORTANT

12V DC OUTLET

1.DO NOT CONNECT A LIGHT OR LOAD OF MORE

THAN 120 WATTS.

2.DO NOT USE AS A CIGARETTE LIGHTER.

3.REMOVE PLUG FROM SOCKET WHEN NOT IN USE.

4.DO NOT USE WHEN WET.

1A7880-65630

1-15

1. SAFETY PRECAUTIONS

Sc2450 Operator's Manual

(G) CY-1A7880-65351

Only use PTO in reverse when there are no children

or others around

(H) CY-1A7882-85230

TO AVOID INJURY OR DEATH FROM ROLLOVER:

• Keep Rollover Protective Structure (ROPS) fully

extended.

• Do not jump if machine tips.

• Use seat belt.

THERE IS NO OPERATOR PROTECTION WHEN

THE ROPS IS IN THE FOLDED POSITION.

• Fold the ROPS only when absolutely necessary.

• When structure must be down:

• Do not use seat belt.

• Drive with extra care.

P3014940

(G)

! WARNING

WARNING

Only use PTO in

reverse when there

are no children or

others around

A3016424

(H)

! WARNING

•

Keep Rollover

Protective Structure

(ROPS) fully extended.

• Do not jump if machine

tips.

•

Use seat belt.

THERE IS NO OPERATOR

PROTECTION WHEN THE

ROPS IS IN THE

FOLDED POSITION.

•

Fold the ROPS only

when absolutely

necessary.

•

Do not use seat belt.

•

Drive with extra care.

TO AVOID INJURY OR

DEATH FROM ROLLOVER:

When structure must

be down:

WARNING

1A7882-85230

1-16

1. SAFETY PRECAUTIONS

Sc2450 Operator's Manual

(I) CY-198220-65621

AVOID INJURY FROM PTO

●Keep all shields in place

●Keep hands, feet and clothing away

●Operate only with 540 RPM

(J) CY-1A8160-65310

TO AVOID INJURY:

Before leaving or servicing machine,

●Stop engine.

●Set parking brake.

●Park on level ground.

●Lower all implements to the ground.

●Remove key.

P3014938

(I)

! WARNING

AVOID INJURY FROM PTO

Keep all shields in place

Keep hands,feet and

clothing away

Operate only with 540

RPM

WARNING

A3016425

(J)

! WARNING

2-1

2. SERVICE THE PRODUCT

Sc2450 Operator's Manual

2. SERVICE THE PRODUCT

Your Cub Cadet Yanmar dealer is committed to

delivering the best possible service to our customers,

including the enabling of optimal performance of the

tractor.

After carefully reading this manual, the tractor owner

can be expected to perform certain service

operations.

However, when parts and components and major

jobs are required, contact your local Cub Cadet

Yanmar dealer.

Specify the serial numbers of the tractor and that of

the Roll-Over Protective Structure (ROPS). Find the

serial numbers and enter them into the following

table.

(A) Tractor identification plate with tractor serial

number

(B) Engine serial number

number

Type Serial No.

Tractor

Engine

Roll-Over Protective

Structure (ROPS)

Date of Purchase

Name of Dealer

3016482

(A)

P3014901

(B)

(C)

A3016406

3-1

3. SPECIFICATIONS

Sc2450 Operator's Manual

3. SPECIFICATIONS

Specifications of the Tractor

1. Specifications Table

Model Sc2450

Power Take Off (PTO) Power hp (kW) 16.5 (12.3)

Engine

Maker YANMAR

Model 3TNV72

Type

Indirect Injection, Vertical,

Water-Cooled, 4 Cycle Diesel

Number of Cylinders 3

Bore and Stroke in. (mm) 2.834 × 2.913 (72 × 74)

Total Displacement cu. in. (L) 55.1 (0.903)

Gross Power hp (kW) 24.0 (17.9)

Net Power hp (kW) 20.4 (15.0)

Rated Revolution

min

-1

(rpm)

3300

High Idle Speed

min

-1

(rpm)

3470

Low Idle Speed

min

-1

(rpm)

1150

Maximum Torque ft•lbs (N•m) 38.3 (52.3)

Battery 12V BP24 , CCA: 540 A

Fuel Diesel Fuel No.1-D , No.2-D

Capacities

Fuel Tank US gal (L) Approximately 5.8 (22)

Engine Oil US qt (L) Approximately 2.5 (2.4)

Engine Coolant US qt (L) Approximately 3.4 (3.2)

Transmission/Hydraulic Oil US gal (L) Approximately 2.0 (7.5)

Dimensions

Overall Length (without 3-Point Hitch) in. (mm) 82.7 (2100)

Overall Length (with 3P) in. (mm) 95.5 (2425)

Overall Width (with R4 Tires) in. (mm) 44.5 (1130)

Overall Height (with Roll-Over Protective Structure

(ROPS), R4 Tires)

in. (mm) 83.46 (2120)

Overall Height (with R4 Tires)

(Top of Steering Wheel)

in. (mm) 49.9 (1267)

Wheel Base in. (mm) 55.1 (1400)

Min. Ground Clearance (with R4 Tires) in. (mm) 7.5 (190)

Tread (with R4)

Front in. (mm) 34.6 (879)

Rear in. (mm) 32.2 (820)

Weight (with Roll-Over Protective Structure (ROPS) and R4 Tires) lb (kg) 1344 (610)

3-2

3. SPECIFICATIONS

Sc2450 Operator's Manual

Traveling

System

Tire

Ag (R1)

Front 18 × 8.50-10

Rear 26 × 12.00-12

Turf (R3)

Front 18 × 8.50-10

Rear 26 × 12.00-12

Industrial (R4)

Front 18 × 8.50-10

Rear 26 × 12.00-12

Clutch –

Steering Power Steering

Transmission

Hydrostatic Transmission,

2 Range Speeds

Drive Selected 4WD

Brake Wet plates

Minimum Turning Radius ft (m) 7.2 (2.2)

Differential Lock Foot Pedal Control

Hydraulic Unit

Hydraulic Control System Type Position Control

Pump Capacity (main)

US gal/min

(L/min)

Approximately 3.4 (13.2)

Pump Capacity (steering)

US gal/min

(L/min)

Approximately 3.4 (13.2)

3-Point Hitch Limited Category I

Max. Lift Force

Lift Point lb. (kg) 1036 (470)

24 in. Behind Lift Point lb. (kg) 661 (300)

System Pressure psi (MPa) 1813 (12.5)

Power Take Off

(PTO)

Type Electric Clutch

Rear

Shaft Size SAE 1-3/8, 6-Splines

Type Independent

Speed/Engine

min

-1

(rpm)

540 / 3111

Mid

Shaft Size SAE 16/32, 15-Splines

Type Independent

Speed/Engine

min

-1

(rpm)

2100 / 3338

2. Traveling Speeds (Reference)

Model Sc2450

Range Gear Lever mph km/h

Forward Slow 0-6.0 0-9.7

Fast 0-9.3 0-15

Reverse Slow 0-3.6 0-5.8

Fast 0-5.6 0-9

4-1

4. IMPLEMENT CAPACITIES

Sc2450 Operator's Manual

4. IMPLEMENT CAPACITIES

The Cub Cadet Yanmar tractor has been carefully tested in the configuration equipped with implements sold or

approved by Cub Cadet Yanmar and has proven to perform properly. Do not use any implement that has not

been sold or recommended by a Cub Cadet Yanmar dealer, or that fails to satisfy the specified values given

below. Never mount an implement that is not approved for the Cub Cadet Yanmar tractor. Using unapproved

implements could result in malfunction, failure, and damage to the tractor and/or implement, and increase the

possibility of injury to the operator or other people. The Cub Cadet Yanmar warranty does not cover any

malfunction or failure that results from use of an unapproved implement.

24in. Behind Lift Point

Maximum

Lifting Capacity

Implement Weight

Maximum Vertical

Hitch Load

Maximum

Gross Towing Load

lb 661

As specified in the list

below.

551 1763

kg 300 250 800

Implement Remarks Unit Amount

Front - End Loader

Maximum Lift Capacity (at Pivot) lb (kg) 700 317

Maximum Overhang (Pivot - Front Tire Center) in. (mm) 40 1022

Maximum Weight lb (kg) 441 200

Maximum Oil Pressure psi (MPa) 1885 13

Mower

Mid - Mount

Maximum Cutting Width in. (mm) 60 1524

Maximum Weight lb (kg) 254 115

Rear - Mount

Maximum Cutting Width in. (mm) 48 1219

Maximum Weight lb (kg) 351 159

Rotary Tiller

Maximum Tilling Width in. (mm) 42 1067

Maximum Weight lb (kg) 342 155

Box Scraper (Box Blade)

Maximum Cutting Width in. (mm) 48 1219

Maximum Weight lb (kg) 254 115

Rear Blade

Maximum Cutting Width in. (mm) 60 1524

Maximum Weight lb (kg) 176 80

Backhoe

Maximum Lift Capacity

with boom and dipperstick fully extended no

more than 36 in. (91 cm) above ground level.

lb (kg) 205 93

Maximum Weight lb (kg) 551 250

A3013714a

5-1

5. NAMES AND FUNCTIONS OF COMPONENTS

Sc2450 Operator's Manual

NAMES AND FUNCTIONS OF COMPONENTS

Tractor Control Overview

(1) Headlights

(2) Hood

(3) Fuel inlet

(4) Seat

(5) Seat belt

(6) Fender

(7) Rear tires

(8) Mid-Power Take Off (PTO)

(9) Front tires

(10) Work lights

(11) Hood guard

(12) Roll-Over Protective Structure (ROPS)

(13) Hydraulic quick couplers (Option)

(14) 12V DC outlet (for additional rear work light)

(15) Rear Power Take Off (PTO) shaft

(16) Tail lights

(17) Turn signal/hazard lights

(18) Slow Moving Vehicle (SMV) emblem

1. Overview

(16)

(15)

(13)

(12)

(17)

(14)

A3016423

A3016422

(10)

(3)

(9)

(7)

(4)

(1)

(2)

(6)

(5)

3014906

(13)

3016450

(11)

(8)

(18)

5-2

5. NAMES AND FUNCTIONS OF COMPONENTS

Sc2450 Operator's Manual

■ Names of Components

(1) Hazard lights button switch

(2) Starter key switch

(3) Throttle control lever

(4) Parking brake lever

(5) Brake pedal

(6) Forward and reverse drive pedal

(7) Implement control lever

(8) Implement lock lever

(9) Position stop knob

(10) Cruise control lever

(11)

3-point hitch control/cutting height adjustment lever

(12) Storage compartment

(13) 12V DC outlet

(14) Hydro Static Transmission (HST)

pressure release lever

(15) Cup holder

(16) Reverse - override - switch

(17) Power Take Off (PTO) switch

(18) Range gear lever

(19) Mid-/Rear-Power Take Off (PTO) select lever

(20) Turn signal switch

(21) Headlight/work light switch

(22) Seat adjustment lever

(23) Differential lock foot pedal

(24) 4-wheel drive lever

(25) Hydraulic flow control/stop knob

(26) Seat lock lever

2. Operator Station Controls

3014903

(21)

(17)

(20)

(3)

(1)

(19)

(18)

(16)

(15)

(14)

(13)

(11)

(6)

(4)

(7)

(5)

(8)

(10)

(9)

(2)

(12)

3016494

(25)

(24)

(23)

(22)

(26)

5-3

5. NAMES AND FUNCTIONS OF COMPONENTS

Sc2450 Operator's Manual

■ Function of Components

(1) Hazard lights button switch

Depress the red button to turn the hazard lights ON.

Pressing this button will cause the button to light up

and the hazard lights at the rear of tractor to flash.

(The hazard lights remain flashing even when the

starter key switch is in the OFF position. Remember

that allowing the turn signal/hazard lights to flash for

an extended period can lead to loss of battery

voltage.)

(a) ON

(b) OFF

(2) Starter key switch

This switch is used to start and stop the engine.

(A) OFF position:

The engine must be off.

(B) ON position:

When the key has been turned to this position,

the engine oil pressure warning light and the

alternator/battery charging light and the engine

coolant warning light will illuminate.

When the key is turned to this position, the starter

starts turning the flywheel and then the engine

begins to run. Once the engine has started,

release the key.

(D) Preheating position:

Preheating time should be determined according to

outside air temperature. For details, see the table

below.

(A) OFF position

(B) ON position

(D) Preheating position

3013729

(a) (b)

Temperature (°F (°C)) Preheating Time (sec.)

Over 32 (0) 2 to 3

Below 32 (0) 4

3014907a

(A)

(B)

(C)

(D)

5-4

5. NAMES AND FUNCTIONS OF COMPONENTS

Sc2450 Operator's Manual

(3) Throttle control lever

Use the throttle control lever to change the engine

speed. While monitoring the tachometer, change the

engine speed as required.

(A) Throttle control lever

(a) To increase the engine speed:

pull the throttle control lever backward.

(b) To decrease the engine speed:

push the throttle control lever forward.

(4) Parking brake lever

This lever is used when parking the tractor.

(A) Parking brake lever

(a) To engage the parking brake: Fully pull the

parking brake lever backward.

(b) To unlock the parking brake: Fully push the

parking brake lever forward.

(5) Brake pedal

This pedal is used to stop and park the tractor.

(A) Brake pedal

(a) To apply the brakes: Depress the brake pedal.

(b) To release the brakes: Release foot from the

brake pedal.

3014903e

(A)

(b)

(a)

3014916f

(A)

(b)

(a)

3014916f

(A)

(b)

(a)

5-5

5. NAMES AND FUNCTIONS OF COMPONENTS

Sc2450 Operator's Manual

(6) Forward and reverse drive pedal

The tractor accelerated speed depends on how far

the drive pedal is pressed.

(A) To move forward:

Depress the forward side of the forward and

reverse drive pedal.

(B) To move backward:

Depress the reverse side of the forward and

reverse drive pedal.

(A) Forward side of the forward and reverse drive

pedal

(B) Reverse side of the forward and reverse drive

pedal

IMPORTANT

●When the drive pedal is released, the transmission

will automatically return to the NEUTRAL position.

(7) Implement control lever

The implement control valve has a float position.

When the implement control valve is in this position,

implements such as blades or front loaders, lowered

to the operating position, are allowed to follow

ground contours.

Push the implement control lever forward beyond the

valve detent position to the float position.

(a) Lower

(b) Float

(d) Dump faster

(e) Raise the implement

(f) Curl

IMPORTANT: Avoid damage.

●Prevent damage or contamination to the female

quick couplers. ALWAYS leave the color-coded

hose ends connected to the couplers when the

couplers are not in use.

NOTE

●When the implement control lever is released, it

returns to its NEUTRAL position.

3014916c

(A)

(B)

1A7880-65410

(f)

(e)

(d)

(c)

(b)

(a)

5-6

5. NAMES AND FUNCTIONS OF COMPONENTS

Sc2450 Operator's Manual

(8) Implement lock lever

When fixing the implement control lever at its

NEUTRAL position, use the implement lock lever.

(A) Implement control lever

(B) Implement lock lever

IMPORTANT: Avoid damage.

●Do not attempt to operate the implement control

lever when the implement control lever has been

locked.

●When the implement control lever has been locked

with the implement lock lever, move the implement

control lever with light force to ensure that it has

been securely locked.

(a) To unlock the implement control lever:

Pull up the implement lock lever.

(b) To lock the implement control lever:

Push down the implement lock lever when the

implement control lever is in its NEUTRAL

position.

(9) Position stop knob

This knob is used to secure the implement installed

with the 3-point hitch in its raised position, or to limit

the range of operation of the 3-point hitch control/

cutting height adjustment lever.

(A) Position stop knob

(10)Cruise control lever

The cruise control is a feature that regulates forward

tractor travel to a specific speed.

(A) Cruise control lever

3014903n

(A)

(B)

(b)

(a)

3014918e

(A)

3014903m

(A)

5-7

5. NAMES AND FUNCTIONS OF COMPONENTS

Sc2450 Operator's Manual

(11)3-point hitch control/cutting height adjustment lever

Use the 3-point hitch control/cutting height

adjustment lever, when raising or lowering the Mid-

or Rear-mounted implement.

(A) 3-point hitch control/cutting height

adjustment lever

(a) Moving the 3-point hitch control/cutting height

adjustment lever forward will lower the

implement.

(b) Moving the 3-point hitch control/cutting height

adjustment lever backward will raise the

implement to raise higher.

(13)12V DC outlet

This can be used as a power source for electrical

goods.

(A) 12V DC outlet

(14)Hydro Static Transmission (HST) pressure release lever

Hydraulic pressure in the Hydro Static Transmission

(HST) brakes the axles when the engine is not

running, so that the tractor cannot be moved.

When the hydraulic pressure in the transmission is

released by pressing the Hydro Static Transmission

(HST) pressure release lever, the tractor can be

moved.

(A) Hydro Static Transmission (HST) pressure

release lever

3014918e

(b)

(a)

(A)

3014903o

(A)

3016486

(A)

5-8

5. NAMES AND FUNCTIONS OF COMPONENTS

Sc2450 Operator's Manual

(16)Reverse-override-switch

Normally, reversing the tractor stops the Mid-Power

Take Off (PTO) and the Rear-Power Take Off (PTO).

To drive the Power Take Off (PTO) while reversing

the tractor, use the reverse-override-switch.

(A) Reverse-override-switch

(17)Power Take Off (PTO) switch

This switch is used to rotate the Power Take Off

(PTO).

(A) Power Take Off (PTO) switch

(a) Turn off: Push the switch.

(b) Turn on: Pull the switch.

(18)Range gear lever

Use the range gear lever to select the speed that

best suits the intended operation.

(A) Range gear lever

(a) SLOW : Used for heavy-load operation.

Low traveling speed.

(b) FAST : Used for light-load operation.

High traveling speed.

3014919d

(A)

3014919g

(A)

(a) (b)

3014926

3014919a

(A)

(a)

(b)

5-9

5. NAMES AND FUNCTIONS OF COMPONENTS

Sc2450 Operator's Manual

(19)Mid-/Rear-Power Take Off (PTO) select lever

This lever is used to select the Mid- or Rear-Power

Take Off (PTO), depending upon the implement

being used.

(A) Mid-/Rear-Power Take Off (PTO) select lever

(a) Operating the Mid-Power Take Off (PTO) alone

(b) Operating the Mid-Power Take Off (PTO) and the

Rear-Power Take Off (PTO) at the same time

(20)Turn signal switch

(21)Headlight/work light switch

Use the blue lever to turn ON/OFF the headlights

and work lights. Turning the blue lever to the (b)

position illuminates the headlights and turning it to

the (c) position illuminates the work lights and

headlights at the same time.

• The yellow lever is a turn signal switch.

• Move the turn signal switch right to signal a right

turn.

• Move the turn signal switch left to signal a left

turn.

• The tail light illuminates while the turn signal light

is illuminated or blinked, the tail light similarly

illuminates or flashes.

(A) Blue lever (Headlight/work light switch)

(B) Yellow lever (Turn signal switch)

(a) OFF

(b) Headlights ON

(d) To signal a left turn, move the lever to left

(e) To signal a right turn, move the lever to right

(22)Seat adjustment lever

See “Adjust the Operator's Seat” on page 7-2.

(23)Differential lock foot pedal

See “Differential Lock” on page 8-15.

3014919e

(A)

(c)

(a)

(b)

A3014901

(a) (b) (c)

(A)

(B)

A3014902

(d)

(e)

5-10

5. NAMES AND FUNCTIONS OF COMPONENTS

Sc2450 Operator's Manual

(24)4-wheel drive lever

In the 4-wheel drive mode, all the four wheels are

powered to obtain better traction on difficult-to-travel

ground.

The 4-wheel drive lever can be set to the ON or OFF

position only when the tractor is at a standstill.

(A) 4-wheel drive lever

(a) 4-wheel drive mode

(b) 2-wheel drive mode

IMPORTANT: Avoid damage.

●ALWAYS keep the 4-wheel drive lever in the OFF

position when traveling on a paved surface.

●ALWAYS disengage the 4-wheel drive lever when

not needed to prevent premature wear of the front

tires.

●NEVER install tire chains to the front wheels.

Chains will hit and can damage the tractor.

●If disengaging the 4-wheel drive lever is difficult,

stop the tractor, turn the steering wheel right and

left several times. Then attempt to disengage the

4-wheel drive lever again.

●To minimize tire wear, drive in the 4-wheel drive

mode only when absolutely necessary. Driving the

tractor on a paved road in the 4-wheel drive mode

can accelerate wear of the tires.

●To obtain better traction, keep the front tires at the

maximum allowable pressure.

●When the 4-wheel drive lever is in the ON position,

braking will apply to all four wheels.

(25)Hydraulic flow control/stop knob

The lowering speed of the lower link is governed by

the position of the hydraulic flow control/stop knob.

Also, this knob is used to stop the lower link at an

intended position.

(A) Hydraulic flow control/stop knob

(a) Turning the knob clockwise will cause the

lowering speed to decrease.

Tighten the knob by fully turning clockwise to stop

the lower link.

(b) Turning the knob counterclockwise will cause the

lowering speed to increase.

(26)Seat lock lever

See “Reverse the Operator's Seat” on page 7-2.

3016494b

(A)

(b)

(a)

3014904d

(b)

(a)

(A)

5-11

5. NAMES AND FUNCTIONS OF COMPONENTS

Sc2450 Operator's Manual

(1) Tachometer

This meter indicates the current engine speed in

increments of 100 min

-1

(rpm).

(2) Fuel gauge

This gauge indicates level of fuel in the fuel tank,

while the starter key switch is in the ON position.

(3) Hour meter

This meter indicates the total accumulated operating

hours. This indication is based on the assumption

that the engine runs at a speed of 3300 min

-1

(rpm).

(4) Alternator/battery charging light

This light remains lit when the starter key switch is in

the ON position and the engine is OFF.

IMPORTANT

●If this light illuminates while the engine is running,

the power generated by the alternator is too low.

Fully pull the throttle control lever backward and

increase the engine speed. If the light still remains

lit, immediately stop the engine and contact your

local Cub Cadet Yanmar dealer for technical

assistance.

(5) Engine oil pressure warning light

This light remains lit when the starter key switch is in

the ON position and the engine is OFF.

IMPORTANT

●If this light illuminates while the engine is running,

the engine oil pressure is too low. Immediately stop

the engine and contact your local Cub Cadet

Yanmar dealer for technical assistance.

(6) Preheater pilot light

This light illuminates when the engine starter key

switch is turned to the preheating position.

Preheating time should be determined according to

outside air temperature. For details, see the table

below.

(7) Engine coolant warning light

This light illuminates when engine coolant

temperature becomes abnormally high.

IMPORTANT

●If the engine coolant warning light does turn on,

reduce the load on the tractor immediately, run the

engine at an idle until the light turns off, and shut

off the engine. Wait until the engine has cooled off

completely, and check to see that there is:

(1) Sufficient coolant in the radiator and reserve

tank

(2) No clogging of the radiator fins and screen

(3) Sufficient tension in the fan belt

See “Chapter 14. PERIODIC SERVICE” for more

information on maintenance procedures.

●If the coolant warning light turns on again even

after being sure of the checkpoints above, shut off

the engine immediately and contact your local Cub

Cadet Yanmar dealer.

3. Instrument Panel, Switches and Hand Controls

3014905

(1)

(7)

(2)(3)

(6)

(5)

(4)

Temperature (°F (°C)) Preheating Time (sec.)

Over 32 (0) 2 to 3

Below 32 (0) 4

6-1

6. PRE-OPERATION CHECK

Sc2450 Operator's Manual

6. PRE-OPERATION CHECK

Pre-Operation Check of Tractor

●Check the tractor for damage, excessive wear, cracks, missing parts,

exposed wiring and any other problems, including leaks.

●Check the joints and connections for looseness.

●Check that all the lights illuminate.

●Check that all the safety-alert decals are in correct position.

If any problem is detected, contact your local Cub Cadet Yanmar dealer,

and correct the problem. NEVER operate the tractor when a problem has

been indicated.

●ALWAYS be aware of the limitations of the performance of the tractor.

●Operate the tractor, keeping in mind “SAFETY FIRST!”.

●Check the safety features.

●Check the tire pressure.

●Check that the remaining diesel fuel is sufficient for the intended

operation.

●Check the engine oil level.

●Check the transmission/hydraulic oil level.

●Check the coolant level.

●Remove grass clippings and debris from the tractor.

●Clean the air cleaner element.

●Check the tractor for any leaks such as oil, coolant and fuel.

●Check the radiator for possible blockage.

●Check the retractable seat belt and the Roll-Over Protective Structure

(ROPS) for any problem.

If any problem is detected, contact your local Cub Cadet Yanmar dealer

and correct the problem.

●Only wipe off the tractor after washing.

●Chemical agents such as pesticides can damage the plastic surfaces and

painted surfaces. NEVER spray chemical agents near the machine.

●NEVER spill diesel fuel onto the tractor. Diesel fuel can damage the

plastic surfaces and painted surfaces. ALWAYS wipe up spilled diesel

fuel immediately.

1. Pre-Operation Check

2. Precautions Before the Operation

3. Routine Check

4. Prevent Damage to the Plastic Surfaces and Painted Surfaces

7-1

7. OPERATE THE ENGINE

Sc2450 Operator's Manual

7. OPERATE THE ENGINE

NEVER run or idle the engine in a

confined area that is poorly ventilated or

not ventilated at all. The engine emits

carbon monoxide as that is colorless,

odorless and can cause death.

ALWAYS remain seated in the operator’s station

when starting the engine or actuating the levers or

controls.

Always ensure that your foot is removed from the

forward and reverse pedal, the parking brake is

engaged and Power Take Off (PTO) switch is in the

OFF position before the engine is started.

While operating the tractor, make sure to keep the

seat belt fastened with the Roll-Over Protective

Structure (ROPS) equipped. This will reduce the

possibility of injury or death in the event of an

accident such as an overturn or roll-over.

Start the engine of your tractor only with the starter

key switch. NEVER attempt to start the tractor engine

by short-circuiting across its terminals with a jumper

or by bypassing the safety start switch.

Before operation, make sure that all the safety

features are functioning correctly. Make corrections

as necessary.

! WARNING

7-2

7. OPERATE THE ENGINE

Sc2450 Operator's Manual

1. Open the fuel shut-off valve.

■ Opening/Closing the Fuel Shut-Off

Valve

●To open the valve, turn the valve lever to the

vertical position.

●To close the valve, turn the valve lever to the

horizontal position.

(A) Valve lever

(O) Open

2. Sit on the seat.

■ Adjust the Operator's Seat

1. Engage the parking brake securely and stop the

engine.

2. Sit on the seat.

3. Pull the seat adjustment lever to the left.

4. Move the seat forward and backward to find the

optimal position and then release the seat

adjustment lever.

5. While remaining seated, confirm that various

control levers can be comfortably operated. If any

control lever cannot be operated comfortably,

readjust the seat position as necessary.

(A) Seat adjustment lever

IMPORTANT

●After adjusting the seat position, always make sure

that the seat is securely locked in place.

■ Reverse the Operator's Seat

The following procedure can be used to turn the

operator's seat around for backhoe operation.

(A) Operator's seat

(position for driving the tractor and operating

the front loader)

(B) Operator's seat

(position for backhoe operation)

1. Start the Engine

3014908a

(A)

(O)

(C)

3016414c

(A)

(A)(B)

3016410

7-3

7. OPERATE THE ENGINE

Sc2450 Operator's Manual

1. Slide the seat backward completely.

Pull the seat lock lever out to release the seat lock

as shown in the illustration.

(A) Seat lock lever

(a) Release the lock

2. The seat must be raised mechanically and can be

rotated as shown in the illustration. (clockwise

only)

3. Turn the seat slowly until it is facing the opposite

direction.

Confirm the seat position is locked automatically.

NOTE

●Whenever seated, the seat is lowered approx. 0.59

in. (15mm)

NOTE

●For tractor operation;

1. Slide the seat backward completely.

Pull the seat lock lever out to release the seat lock

as shown in the illustration.

(A) Seat lock lever

(a) Release the lock

3016414d

(A)

(a)

3016415b

3016416

3016416a

(A)

(a)

7-4

7. OPERATE THE ENGINE

Sc2450 Operator's Manual

2. The seat must be raised mechanically and can be

rotated as shown in the illustration

(counterclockwise only).

3. Turn the seat until it is facing the opposite

direction. Once it is oriented in a straight position,

push down on the seat using both hands.

4. Make sure that the seat is securely locked in

place.

■ Fasten the Retractable Seat Belt

Avoid injury:

●While operating the tractor, make sure to keep

the seat belt fastened with the Roll-Over

Protective Structure (ROPS) equipped. This will

reduce the possibility of injury or death in the

event of an accident such as an overturn or

roll-over.

●NEVER use the retractable seat belt when

operating the tractor without the Roll-Over

Protective Structure (ROPS).

1. Draw out the right and left segments of the

retractable seat belt from the retracted positions

on both sides of the operator's seat.

2. Connect both segments of the belt with the

buckle, being careful to avoid twisting of the belt,

adjust the belt length, being suitable for the

operator.

(A) Buckle

(a) Adjust the belt length

3016415c

3016414e

! WARNING

(A)

(a)

A3013712

7-5

7. OPERATE THE ENGINE

Sc2450 Operator's Manual

●If the retractable seat belt is situated far away

from the operator's abdominal area, a

dangerous situation can be present in the event

of an accident. ALWAYS ensure that the

retractable seat belt is in the lowest possible

position to the operator's abdominal area.

●The retractable seat belt must be used by the

operator only. NEVER use the retractable seat

belt for two or more persons or to hold an

object to the operator.

3. Remove foot from the forward and

reverse drive pedal and set the pedal

to the NEUTRAL position.

NOTE

●With the parking brake engaged, the forward and

reverse drive pedal is locked in the NEUTRAL

position.

4. Engage the parking brake securely.

■ Engage the Parking Brake

1. Fully depress the brake pedal.

2. Fully pull the parking brake lever backward to

engage the parking brake securely.

3. Remove foot and make sure that the brake is fully

locked.

NOTE

●Applying the parking brake engages the differential

lock at the same time.

(A) Brake pedal

(B) Parking brake lever

IMPORTANT: Avoid damage.

●NEVER step on the forward and reverse drive

pedal while the parking brake is engaged.

! WARNING

3014916a

(A)

(B)

7-6

7. OPERATE THE ENGINE

Sc2450 Operator's Manual

5. Set the range gear lever to the Slow

position.

(A) Range gear lever

(a) Slow position

6. Turn off the Power Take Off (PTO)

switch.

Push in and set the Power Take Off (PTO) switch to

the OFF position.

(A) Power Take Off (PTO) switch

(a) OFF position

(b) ON position

7. Fully push the 3-point hitch control/

cutting height adjustment lever

forward to the lowest position and

lower the mid- or rear-mounted

implements to the ground.

(A) 3-point hitch control/cutting height

adjustment lever

(a) Lowest position

●In order to prevent a turnover accident,

completely lower the implements to the

ground.

3014919a

(A)

(a)

3014919g

(A)

(a) (b)

3014926

3014918b

(A)

(a)

! WARNING

7-7

7. OPERATE THE ENGINE

Sc2450 Operator's Manual

8. If the tractor has any implements that

use the implement control lever, lower

them to the ground. Then, set the

implement control lever to the

NEUTRAL position and push in the

implement lock lever to lock.

(A) Implement control lever

(B) Implement lock lever

(a) Lower the implement to the ground

9. Set the throttle control lever about

halfway.

(A) Throttle control lever

(a) To increase the engine speed, pull the throttle

control lever backward.

(b) To decrease the engine speed, push the throttle

control lever forward.

10.Insert the key into the starter key hole

and turn the key to the ON position.

(A) ON position

3014903d

(B)

(A)

(a)

3014903e

(A)

(b)

(a)

3014907a

(A)

7-8

7. OPERATE THE ENGINE

Sc2450 Operator's Manual

■ Check the Lights on the Instrument Panel

When the key is turned to the ON position:

1. The engine oil pressure warning light turns ON.

2. The alternator/battery charging light turns ON.

(A) Engine oil pressure warning light

(B) Alternator/Battery charging light

NOTE

●The engine oil pressure warning light turns off within

5 seconds after the engine is started.

●The alternator/battery charging light turns off within

10 seconds after the engine is started.

IMPORTANT: Avoid damage.

●When the engine oil pressure warning light does

not turn OFF within 10 seconds after the engine is

started, the engine oil pressure is too low.

Immediately stop the engine and contact your local

Cub Cadet Yanmar dealer for technical assistance.

●When the alternator/battery charging light does not

turn OFF within 15 seconds after the engine is

started, the power generated by the alternator is

too low. Increase the engine speed to its maximum

so as to increase the power. If the light still remains

lit, immediately stop the engine and contact your

local Cub Cadet Yanmar dealer for technical

assistance.

11.Turn the key to the PREHEATING

position and energize the glow plug to

preheat the engine.

(A) Preheating position

(B) START position

Preheating time should be determined according to

outside air temperature. For details, see the table

below.

Temperature (°F (°C)) Preheating Time (sec.)

Over 32 (0) 2 to 3

Below 32 (0) 4

3014905

(A)

(B)

(A)

(B)

3014907

7-9

7. OPERATE THE ENGINE

Sc2450 Operator's Manual

NOTE

●While turning the key to the preheating position, the

preheater pilot light turns ON. Also, the engine oil

pressure warning light and the alternator/battery

charging light turn ON.

(A) Preheater pilot light

12.Turn and hold the key to the START

position. After the engine is

successfully started, release the key.

IMPORTANT: Avoid starter damage.

●Do not hold the key in the START position for more

than 15 seconds at a time. Any longer attempt will

overheat the starter motor.

●If the engine is difficult to start at a low temperature

etc., hold the key in the START position for 30

seconds. If the engine fails to start, wait at least 30

seconds before the second attempt to allow for

battery voltage recovery.

●If the engine still fails to start with four consecutive

attempts, the starter may be not functioning. (See

“Chapter 17. TROUBLESHOOTING” ).

13.After the engine has started, warm up

the engine for 5 minutes at 2000 to

2400 min

-1

(rpm) without loading.

■ Warm Up the Engine in Cold Weather

In cold weather, warm up the engine for much longer

than 5 minutes so that the hydraulic system shows its

performance. For the appropriate warming up time,

see the table below.

NOTE

●The engine may run slightly louder and emit pale

blue exhaust during warming-up. This is considered

normal operation. The amount of pale blue exhaust

varies depending on the ambient temperature.

●Idling the engine for a long time causes waste of

fuel and carbon accumulation in the engine.

Temperature (°F (°C)) Warming-up Time (min.)

Over 32 (0) At least 5

32 to 14 (0 to –10) 5 to 10

14 to –4 (–10 to –20) 10 to 15

Below –4 (–20)

More than 15

3014905

(A)

7-10

7. OPERATE THE ENGINE

Sc2450 Operator's Manual

1. Remove foot from the forward and

reverse drive pedal.

2. After the tractor has completely

stopped, turn off the Power Take Off

(PTO) switch, lower the implement (if

installed) to the ground and then

engage the parking brake securely.

3. Run the engine at a lowest possible

speed for at least 2 minutes.

4. Turn the key to the OFF position.

5. Remove the key from the starter key

switch.

6. Make sure that the engine and other

components have stopped running.

NEVER leave the operator’s seat

while any components are running.

(A) Forward and reverse drive pedal

(B) Throttle control lever

2. Shut Down the Engine

3013703a

(B)

(A)

3014919c

(C)

7-11

7. OPERATE THE ENGINE

Sc2450 Operator's Manual

IMPORTANT: Avoid engine damage.

●If the engine stalls while operating under load,

immediately restart the engine to prevent over-

heating of the engine.

1. Engage the parking brake securely.

2. Set the range gear lever to the slow

position.

(A) Range gear lever

(a) Slow position

3. Turn off the Power Take Off (PTO)

switch.

●To prevent a possible accident, fully lower all

the implements to the ground.

(A) Power Take Off (PTO) switch

(a) OFF position

4. Restart the engine.

Resume the operation; or run the

engine for 1 to 2 minutes at the lowest

possible running speed, and then

stop the engine.

3. Restart a Stalled Engine

3014919a

(A)

(a)

3014919b

(A)

(a)

! WARNING

8-1

8. OPERATION

Sc2450 Operator's Manual

8. OPERATION

Operate the Tractor

ALWAYS decrease tractor speed before turning,

when traveling on a rough terrain or before stopping

to prevent roll-over.

Do not attempt to turn with the differential lock

engaged. Attempting to turn the tractor while the

differential lock is engaged can lead to a roll-over.

ALWAYS stay clear of ditches, holes, embankments

or ponds. A roll-over can occur more easily if the

ground is soft or wet. Before entering an area

covered with tall grass, walk the area to detect any

obstacles.

ALWAYS be extremely careful about the direction

you are traveling and avoid obstacles. Remain alert

when you are approaching the end of a row, trees or

any obstacle.

ALWAYS maintain good communication with all

others working the same area before and during

operation of the tractor.

Do not get in or out of the moving tractor.

Accident Hazard

ALWAYS remain alert to behaviors of children when

operating the tractor because they are usually very

curious about moving machines.

ALWAYS remember that children may have moved

from a point you last viewed them.

ALWAYS keep children off the work area, and a

person other than the operator should always watch

them.

If any child enters the current work area, stop your

tractor immediately.

NEVER allow children to ride the moving tractor.

They may tamper with the controls or can fall off the

tractor and be run over by the tractor.

NEVER allow children to operate the tractor.

NEVER allow children to play on the tractor or

implement.

ALWAYS be extremely careful when backing the

tractor up. Before backing up, look back and below

the tractor. Children may be in your path.

! WARNING

8-2

8. OPERATION

Sc2450 Operator's Manual

The service life of the tractor is governed by how

adequately it is handled and maintained.

Of course, any newly manufactured tractor has been

tested; however, various parts must be broken in.

Therefore, operate the tractor at low speeds for the

first 50 operating hours, and avoid heavy work or

operation before the various parts have been

sufficiently run. The manner the tractor is operated in

during the breaking-in period greatly affects the

effective life of the tractor. Therefore, to develop

maximum design performance and attain the longest

life of the tractor, the tractor needs to be correctly

broken in. Handle the new tractor, strictly observing

the following instructions.

1. Do not run the tractor at full speed during the first 50 operating hours period

●NEVER suddenly start or brake.

●In cold weather, ALWAYS fully warm up the

engine. After warm-up, start operation of the

tractor.

●NEVER run the engine at a speed higher than

needed.

●On rough roads or terrains, slow the tractor down

as necessary. Do not run the tractor at a high

speed.

The above-mentioned precautions apply not only to

newly manufactured tractors but also to tractors that

have been actively used. Nevertheless, we

recommend that newly manufactured tractors be

operated by strictly observing these instructions/

recommendations.

2. Changing the lubricating oil for the new tractor

The quality of the lubricating oil in any new tractor is

very important. Various parts on a new tractor have

not been fully broken in, and are not fully fitted with

each other. As a result, small metal shavings may

occur while the new tractor is operated, and may

lead to premature wear or damage of the associated

parts or components. Therefore, Cub Cadet Yanmar

recommends that the lubricating oil be changed

earlier than in the ordinary oil change schedule.

For the recommended oil change schedule, see

“Chapter 13. MAINTENANCE”.

1. Operate a New Tractor

8-3

8. OPERATION

Sc2450 Operator's Manual

●ALWAYS operate the tractor with the Roll-Over

Protective Structure (ROPS) in the raised

(unfolded) position unless the tractor is being

operated in a low clearance situation.

Keep the retractable seat belt fastened while

operating the tractor with the Roll-Over Protective

Structure (ROPS) in the raised position. This practice

will reduce the possibility of injury or death in the

event of roll-over accident. If the Roll-Over Protective

Structure (ROPS) has been removed for any reason,

be sure to reinstall all the associated parts before

operating the tractor. NEVER alter the Roll-Over

Protective Structure (ROPS). The altered Roll-Over

Protective Structure (ROPS) may fail to provide the

designed protection. Replace the damaged Roll-

Over Protective Structure (ROPS) immediately.

Contact your local Cub Cadet Yanmar dealer for

technical assistance.

NEVER use the retractable seat belt if the foldable

Roll-Over Protective Structure (ROPS) is in the

folded position or the tractor does not have the Roll-

Over Protective Structure (ROPS).

■ Lower (Fold Down) the Roll-Over Protective Structure (ROPS)

NOTE

●The Roll-Over Protective Structure (ROPS) can be

folded down only by 90 degrees.

1. Pull out the hairpin clip from each of the insert

pins on both sides of the Roll-Over Protective

Structure (ROPS).

2. Pull out the insert pins from both sides of the Roll-

Over Protective Structure (ROPS).

(A) Hairpin clip

(B) Insert pin

2. Raise and Lower the Roll-Over Protective Structure (ROPS)

! WARNING! WARNING

3016406

(A)

3016407

(B)

8-4

8. OPERATION

Sc2450 Operator's Manual

3. Lower (fold) the Roll-Over Protective Structure

(ROPS).

To avoid personal injury:

●Always use both hands to hold the Roll-Over

Protective Structure (ROPS) securely and fold

the Roll-Over Protective Structure (ROPS)

slowly and carefully.

4. There are folded Roll-Over Protective Structure

(ROPS) retaining holes on both sides of the

lowered Roll-Over Protective Structure (ROPS).

Install the insert pins into these holes.

5. There are holes on both ends of the insert pin.

Install the hairpin clip into these holes.

NOTE

●To secure the play-absorbing vibration-insulating

rubber block, pull the upper bolt to the near side

and insert the pins.

(A) Roll-Over Protective Structure (ROPS)

(B) Hairpin clip

■ Raise (Unfold) the Roll-Over Protective Structure (ROPS)

1. Pull out the hairpin clip from each of the insert

pins on both sides of the Roll-Over Protective

Structure (ROPS).

(A) Hairpin clip

(B) Insert pin

2. Pull out the insert pins from both sides of the Roll-

Over Protective Structure (ROPS).

3. Raise (unfold) the Roll-Over Protective Structure

(ROPS).

4. There are unfolded Roll-Over Protective Structure

(ROPS) retaining holes on both sides of the

raised Roll-Over Protective Structure (ROPS).

Install the insert pins into these holes.

5. There are insert pin jam holes on both ends of the

insert pin. Install the hairpin clip into these holes.

NOTE

●To secure the play-absorbing vibration-insulating

rubber block, pull the upper bolt to the near side

and insert the pins.

3016487

! WARNING

3016409

(A)

(B)

(C)

3016406

(A)

(B)

8-5

8. OPERATION

Sc2450 Operator's Manual

Avoid injury:

●Before starting or operating the tractor, always

check the area around the tractor for obstacles

and any person nearby. Turn off the Power

Take Off (PTO) switch and raise the implement.

IMPORTANT: Avoid damage.

●To prevent damage to the transmission, stop the

tractor completely before shifting the range gear

lever.

1. Adjust the operator’s seat position, sit

on the seat, and fastens the seatbelt.

For the adjusting method of the seat position, see

“Adjust the Operator's Seat” on page 7-2, and for the

fastening method of the seat belt, see “Fasten the

Retractable Seat Belt” on page 7-4. See “Reverse

the Operator's Seat” on page 7-2 to adjust the seat to

the position of the backhoe.

(A) Tractor driving position

(B) Backhoe position

2. Use the turn signal switch, headlight/

work light switch, hazard lights button

switch as necessary.

(A) Turn signal switch

(a) Move the turn signal switch to the left to signal a

left turn of the tractor.

(b) Move the turn signal switch to the right to signal a

right turn of the tractor.

(B) Headlight/work light switch

(d) Turning the blue lever to (b) position illuminates

the headlights.

(e) Turning the blue lever to (c) position illuminates

the headlights and work lights at the same time.

3. Operate the Tractor

! WARNING

(A)(B)

3016410

(A)

A3014902

(a) (b)

A3014901

(B)

A3014901f

(C)

8-6

8. OPERATION

Sc2450 Operator's Manual

3. Start the engine.

Start the engine by referring to “Chapter 7. OPERATE

THE ENGINE”.

4. Use the range gear lever and the 4-

wheel drive lever to select the travel

speed.

(A) Range gear lever

(a) SLOW : Used for heavy-load operation.

Low traveling speed.

(b) FAST : Used for light-load operation.

High traveling speed.

(B) 4-wheel drive lever

(d) 2-wheel drive mode

IMPORTANT: Avoid damage.

●ALWAYS keep the 4-wheel drive lever in the 2-

wheel drive mode when traveling on a paved

surface.

●ALWAYS disengage the 4-wheel drive lever put in

the 2-wheel drive mode when not needed to

prevent premature wear of the front tires.

●NEVER install tire chains to the front wheels.

Chains will hit and can damage the tractor.

●If disengaging the 4-wheel drive lever is difficult,

stop the tractor, turn the steering wheel right and

left several times. Then attempt to disengage the

4-wheel drive lever again.

●To minimize tire wear, drive in the 4-wheel drive

mode only when absolutely necessary. Driving the

tractor on a paved road in the 4-wheel drive mode

can accelerate wear of the tires.

●To obtain better traction, keep the front tires at the

maximum allowable pressure.

●When the 4-wheel drive lever is in the 4-wheel

drive mode, braking will apply to all four wheels.

5. Adjust the throttle control lever to

attain an intended speed.

(A) Throttle control lever

(a) To increase the engine speed:

pull the throttle control lever backward.

(b) To decrease the engine speed:

push the throttle control lever forward.

3014919a

(A)

(a)

(b)

3014904b

(B)

(d)

(c)

3014903e

(A)

(b)

(a)

8-7

8. OPERATION

Sc2450 Operator's Manual

6. Raise the implement.

1. Pull the 3-point hitch control/cutting height

adjustment lever rearward and raise the mid- or

rear- mounted implement to the raised position.

(A) 3-point hitch control/cutting height

adjustment lever

(a) Raised position

2. If the tractor has any implements (ex. front loader)

that use the implement control valve, pull up the

implement lock lever to release locking and use

the implement control lever to raise the

implement.

■ Function of Implement Lock Lever

To prevent injury from crushing:

●Never attempt to use the implement lock lever

in order to perform maintenance or repair. This

lock is for preventing the implement from being

accidentally engaged during transport or when

not being used. It will not prevent implement

leak down.

When fixing or adjusting the implement control lever

to its NEUTRAL position, use the implement lock

lever to lock the implement control lever in place.

(A) Implement control lever

(B) Implement lock lever

IMPORTANT: Avoid damage.

●Do not attempt to operate the implement control

lever when the implement control lever has been

locked.

●When the implement control lever has been locked

with the implement lock lever, move the implement

control lever with light force to ensure that it has

been securely locked.

(a) Raising the implement

(b) To unlock the implement control lever: Pull up the

implement control lock lever.

the implement lock lever when the implement

control lever is in its NEUTRAL position.

3014918d

(A)

(a)

3014903n

(A)

(B)

(a)

(c)

(b)

! WARNING

8-8

8. OPERATION

Sc2450 Operator's Manual

7. Disengage the parking brake.

1. Fully depress the brake pedal.

2. Fully push the parking brake lever forward to

unlock the parking brake.

3. Remove foot from the brake pedal. Make sure

that the brake pedal is unlocked.

(A) Brake pedal

(B) Parking brake lever

8. Remove foot from the brake pedal.

9. Slowly depress the forward side of

the forward and reverse drive pedal or

reverse side of the forward and

reverse drive pedal.

(A) Forward side of the forward and reverse drive

pedal

(B) Reverse side of the forward and reverse drive

pedal

IMPORTANT

●When the drive pedal is released, the transmission

will automatically return to the NEUTRAL position.

10.Operate the steering wheel and travel

to the intended destination.

11.Use the cruise control as necessary.

The cruise control is a feature that regulates forward

tractor travel to a specific speed.

NOTE

●The cruise control is operative only when the

tractor is traveling forward.

●Use the cruise control only when traveling in a

vast open area.

●Turn OFF this feature before turning the tractor

or when in areas that include many obstacles.

3014916f

(A)

(B)

3014916c

(A)

(B)

! WARNING! WARNING

8-9

8. OPERATION

Sc2450 Operator's Manual

■ Engage the Cruise Control

1. Depress the forward side of the forward and

reverse drive pedal until an intended travel speed

is reached.

2. Lift up the cruise control lever to engage the

cruise control feature.

3. Remove foot from the forward side of the forward

and reverse drive pedal.

4. Remove hand from the cruise control lever.

(A) Forward side of the forward and reverse drive

pedal

(B) Cruise control lever

■ Disengage the Cruise Control

1. Depress the brake pedal.

2. Step on the forward side of the forward and

reverse drive pedal and make sure the forward

and reverse pedal is unlocked.

NOTE

●The cruise control is disengaged when the operator

depresses the brake pedal.

●If the cruise control lever is not readily disengaged,

then step on the brake pedal several times.

●Also, the cruise control can be disengaged when

the operator depresses the forward side of the

forward and reverse drive pedal. Note, however,

that the reverse side of the forward and reverse

drive pedal can not be used for this purpose.

●Do not strongly step on the reverse side of the

forward and reverse drive pedal when the cruise

control is in the locked state.

3014903i

(B)

(A)

8-10

8. OPERATION

Sc2450 Operator's Manual

1. Slowly remove foot from the forward side of the

forward and reverse drive pedal or reverse side of

the forward and reverse drive pedal.

2. Fully push the throttle control lever forward to

decrease the engine speed.

3. Step on and depress the brake pedal.

4. After the tractor has completely stopped, turn off

the Power Take Off (PTO) switch.

5. Lower the implement (if equipped) to the ground.

6. Engage the parking brake securely.

7. Run the engine at a lowest possible speed for at

least for two minutes.

8. Turn the key to the OFF position.

9. Remove the key from the starter key switch.

10.Make sure that the engine and other rotating

component(s) have stopped running. NEVER

leave the operator’s seat while any component is

running.

(A) Forward and reverse drive pedal

(B) Throttle control lever

■ Stop in an Emergency

1. Remove foot from the forward side of the forward

and reverse drive pedal or reverse side of the

forward and reverse drive pedal.

2. Depress the brake pedal.

3. Turn the key to the OFF position.

4. Keep the brake pedal pressed until all the moving

parts on the tractor come to a full stop.

5. Engage the parking brake securely.

4. Stop the Tractor

3013703a

(B)

(A)

3014919b

(C)

8-11

8. OPERATION

Sc2450 Operator's Manual

■If any of the following occurs, shut off the

engine immediately.

●Suddenly the engine slows down or accelerates on

its own.

●Any unusual noise is heard.

●Dark exhaust is suddenly emitted.

Regularly check the following during driving to

ensure that all parts are functioning normally.

(A) Fuel gauge

(B) Engine coolant warning light

If any warning light turns on during operation,

immediately shut off the engine and detect the cause

according to the procedure given below. Never

attempt to move or start the tractor while any warning

light remains “ON”.

Engine oil pressure warning light (C)

This warning light will turn on if the engine's

oil pressure drops below a predetermined

level.

If this occurs during operation of the tractor

and the light remains lit even when the

engine is accelerated to over 1100 min

-1

(rpm) (without load), check the level of

engine oil.

(See “Check the Engine Oil Level” on page

14-8.)

Alternator/battery charging light (D)

This warning light will turn on if the alternator

is not charging the battery properly.

If this occurs during operation of the tractor,

check the electrical charging system or

contact your local Cub Cadet Yanmar

dealer.

NOTE

●Contact your local Cub Cadet Yanmar dealer for

technical assistance on checking and servicing of

the tractor.

5. Verify During Driving

3014905

(B)

(D)

(A)

(C)

8-12

8. OPERATION

Sc2450 Operator's Manual

■ Fuel Gauge

Once the starter key is turned to the ON position, the

needle on this gauge will first jump to “empty” (in

order to indicate that the gauge is operating properly)

and move to a position that indicates the actual fuel

level.

IMPORTANT

●Never allow the fuel tank to become completely

empty or air may enter the fuel system and

necessitate bleeding of the whole fuel system.

(See “Refill the Fuel Tank” on page 14-4.)

(A) Fuel gauge

(a) Empty

(b) Full

■ Engine Coolant Warning Light

This warning light will turn on if the temperature of

the engine's coolant exceeds a predetermined level.

To avoid personal injury:

●Always allow the temperature of the coolant to

drop sufficiently before attempting to remove

the radiator cap.

●Always loosen the cap slightly first in order to

release the internal pressure before attempting

to remove the radiator cap completely.

IMPORTANT

●If the engine coolant warning light does turn on,

reduce the load on the tractor immediately, run the

engine at an idle until the light turns off, and shut

off the engine. Wait until the engine has cooled off

completely, and check to see that there is:

(1) Sufficient coolant in the radiator and reserve tank

(2) No clogging of the radiator fins and screen

(3) Sufficient tension in the fan belt

See “Chapter 14. PERIODIC SERVICE” for more

information on maintenance procedures.

●If the coolant warning light turns on again even

after being sure of the checkpoints above, shut off

the engine immediately and contact your local Cub

Cadet Yanmar dealer.

(A) Engine coolant warning light

3014905

(b)

(a)

(A)

3014905

(A)

! WARNING

8-13

8. OPERATION

Sc2450 Operator's Manual

■ Hour Meter

When the key is turned to the ON position with the

engine not yet running, this 6-digit meter shows the

number of hours that the tractor has been in use. The

final digit indicates 1/10 of an hour.

(A) Hour meter

3014905

(A)

8-14

8. OPERATION

Sc2450 Operator's Manual

■ Apply the Parking Brake

Avoid injury:

●ALWAYS engage the parking brake securely

before leaving the tractor unattended.

1. Turn off the Power Take OFF (PTO) switch.

(A) Power Take Off (PTO) switch

2. Lower the implement to the ground, set the

implement control lever to the NEUTRAL position

and push in the implement lock lever to lock.

3. Engage the parking brake securely.

4. Turn the key to the OFF position.

5. Remove the key from the starter key switch.

6. Remove foot from the brake pedal. Make sure

that the parking brake has been fully engaged.

7. Before leaving the tractor, be fully sure that the

tractor is at a standstill.

(A) Implement control lever

(B) Implement lock lever

(D) Brake pedal

IMPORTANT

●NEVER park on a steep slope. ALWAYS park on a

solid, flat, level ground whenever possible. If

parking on a slope is unavoidable, park the tractor

across the slope, and lower the implement to the

ground.

■ Release the Parking Brake

1. Fully depress the brake pedal.

2. Fully push the parking brake lever forward to

unlock the parking brake.

3. Remove foot from the brake pedal. Make sure

that the brake pedal is unlocked.

6. Park the Tractor

! CAUTION

3014919b

(A)

3014903j

(B)

(A)

(C)

(D)

8-15

8. OPERATION

Sc2450 Operator's Manual

1. Differential Lock

(A) Differential lock foot pedal

(a) disengage

(b) engage

To prevent the tractor from overturning:

●Do not attempt to turn with the differential lock

engaged.

●Do not engage the differential lock while the

tractor is traveling at a high speed.

The differential lock is actuated to provide greater

traction when rear wheels begin to slip. Engaging the

differential lock will cause the right and left rear axles

to be locked and simultaneously rotate at a same

speed, allowing the tractor to develop maximum

traction force.

IMPORTANT: Avoid damage.

●To prevent damage to the differential gears,

NEVER engage the differential lock while the

tractor is traveling at a high speed, or when only

one wheel is rotating.

●The differential lock is designed to be used for

short durations. Its prolonged use can damage the

differential gears.

■ Engage the Differential Lock

1. Stop or slowly drive the tractor.

2. Depress the differential lock foot pedal.

■ Disengage the Differential Lock

Remove foot from the differential lock foot pedal.

IMPORTANT

●When using the differential lock, decrease the

engine speed.

●To prevent transmission damage, do not use the

differential lock when only one rear wheel is

rotating.

• If the differential lock does not disengage when

the foot is removed from the differential lock foot

pedal, lightly step on the brake pedal several

times.

7. Safe Practices for Operation

3016494c

(A)

(b)

(a)

! WARNING! WARNING

8-16

8. OPERATION

Sc2450 Operator's Manual

2. Drive the Tractor on Roads Safely

Exercise due caution when driving the tractor at

a transport speed.

●We recommend that the user/operator use the

turn signal/hazard lights when traveling on

public roads. Before operating the tractor on a

public roadway, be aware of relevant state or

local regulations in effect. An implement safety

lighting kit is available from your local Cub

Cadet Yanmar dealer.

●If local laws permit road travel, use the flashing

hazard lights and Slow Moving Vehicle (SMV)

emblems when traveling on public roadways.

● When operating the tractor on a roads, strictly

observe the following precautions:

• ALWAYS ensure that right side and left side

brakes are equally adjusted.

• ALWAYS ensure that the Slow Moving Vehicle

(SMV) emblem and hazard lights are clean and

clearly visible. If a towed or rear-mounted

implement jeopardizes visibility of these safety

devices, install the Slow Moving Vehicle (SMV)

emblem and hazard lights on the implement.

(A) Typical example of installed Slow Moving

Vehicle (SMV) emblem

●Turn the hazard lights and headlights ON, unless

prohibited by law.

●Secure the implement being towed with lock hitch

pins and safety chains.

●Drive the tractor slowly so that the tractor is under

control at all times. Slow down for travel on slopes,

rough roads, sharp turns or when transporting a

heavy rear-mounted implement.

●Disengage the 4-wheel drive to prevent excessive

tire wear.

●NEVER coast downhill.

●Check whether the front wheel gearing is engaged.

●Remember that the braking characteristics differ

between the 2- and 4-wheel drive modes.

ALWAYS be aware of the current drive mode and

use it properly.

●ALWAYS slow down before turning. High-speed

turns may cause the tractor to tip over.

●ALWAYS ensure that the Slow Moving Vehicle

(SMV) emblem is on the tractor and is clearly

visible.

! CAUTION! WARNING: Avoid injury!

P3014904

(A)

8-17

8. OPERATION

Sc2450 Operator's Manual

●Strictly observe all the currently effective local

traffic and safety laws and regulations.

●ALWAYS travel at a speed that allows the tractor to

remain controlled and stable.

●Avoid engaging the differential lock while traveling

on roads as this can cause the tractor to become

uncontrollable.

●While traveling on roads, do not turn the steering

wheel suddenly as this can lead the tractor to

become unstable and result an extremely

dangerous situation.

●While on roads, NEVER attempt to operate an

implement. During driving on road with an

implement attached to the 3-point hitch, put the 3-

point hitch control lever in its raised position and

lock it with the position stop knob. Do not fully close

the hydraulic flow control/stop knob in order to

keep any implements in their raised position while

the tractor is traveling.

Closing the knob could cause damage to the

hydraulic lift circuit.

●When driving the tractor on roads, NEVER exceed

10 mph (16 km/h).

8-18

8. OPERATION

Sc2450 Operator's Manual

3. Drive the Tractor on Roads Safely (when with backhoe)

Be cautious when driving the tractor at a

transport speed:

●We recommend that the user/operator use the

turn signal/hazard lights when traveling on

public roads. Before operating the tractor on a

public roadway, be aware of relevant state or

local regulations in effect. An implement safety

lighting kit is available from your local Cub

Cadet Yanmar dealer.

●If local laws permit road travel, flash the hazard

lights and display the Slow Moving Vehicle

(SMV) emblems when traveling on public

roadways.

●When operating the tractor on a road, strictly

observe the following precautions:

• ALWAYS ensure that the Slow Moving Vehicle

(SMV) emblem and hazard lights are clean and

clearly visible. If a towed or rear-mounted

implement jeopardizes visibility of these safety

devices, install the Slow Moving Vehicle (SMV)

emblem and hazard lights on the implement.

(A) Typical example of installed Slow Moving

Vehicle (SMV) emblem

●Turn the hazard lights and headlights ON, unless

prohibited by law.

●Drive the tractor slowly so that the tractor is under

control at all times. Slow down for travel on a slope,

rough road, sharp turns or when transporting a

heavy rear-mounted implement.

●Disengage the 4-wheel drive to prevent excessive

tire wear.

●NEVER coast downhill.

●Check whether the front wheel gearing is engaged.

●Remember that the braking characteristics differ

between the 2- and 4-wheel drive modes.

ALWAYS be aware of the current drive mode and

use properly.

●ALWAYS slow down before turning. High-speed

turns may cause the tractor to tip over.

●Strictly observe all the currently effective local

traffic and safety laws and regulations.

●ALWAYS travel at a speed that allows the tractor to

remain controlled and stable.

●Avoid engaging differential lock while traveling on a

road. Your tractor can lose control.

! WARNING! WARNING

3016403

(A)

8-19

8. OPERATION

Sc2450 Operator's Manual

●While traveling on a road, do not suddenly turn the

steering wheel. Such an action can lead to loss in

the stability of the tractor, and can cause an

extremely dangerous situation.

●While on a road, NEVER attempt to operate an

implement. Keep the 3-point hitch in the raised

position during transport.

4. Move the Tractor Manually while the Engine is Stopped

Setting the Hydro Static Transmission (HST)

pressure release lever to the ON position makes

the tractor freely move.

●Do not operate the Hydro Static Transmission

(HST) pressure release lever on a slope. Setting

the Hydro Static Transmission (HST) pressure

release lever to the ON position on the slope

makes the axles freely move, so that the tractor

will be out of control.

●Before setting the Hydro Static Transmission

(HST) pressure release lever to the ON position,

park the tractor in a flat place and engage the

parking brake securely.

(A) Hydro Static Transmission (HST) pressure

release lever

●Do not operate the Hydro Static Transmission

(HST) pressure release lever while the engine is

running.

IMPORTANT: Avoid damage.

●Moving the tractor in an improper way may

damage the transmission. Move the tractor by

hand only.

• Do not move the tractor with using other

machine.

• Do not tow the tractor.

! WARNING! WARNING

3016486

(A)

1A7880-65380

! WARNING! WARNING

8-20

8. OPERATION

Sc2450 Operator's Manual

■ Hydro Static Transmission (HST) Pressure Release Lever

Hydraulic pressure in the Hydro Static Transmission

(HST) brakes the axles when the engine is not

running, so that the tractor cannot be moved.

When the hydraulic pressure in the transmission is

released by pressing the Hydro Static Transmission

(HST) pressure release lever, the tractor can be

moved.

To move the tractor, observe the following

procedure:

1. Make sure that the engine is stopped.

2. Tilt the seat forward.

(A) Seat

3. Fully depress the Hydro Static Transmission

(HST) pressure release lever.

(A) Hydro Static Transmission (HST) pressure

release lever

4. Disengage the parking brake.

5. Move the tractor.

6. After moving the tractor, fully pull up the Hydro

Static Transmission (HST) pressure release lever.

7. Engage the parking brake securely.

3016488

(A)

3016486

(A)

1A7880-65380

8-21

8. OPERATION

Sc2450 Operator's Manual

5. Transport the Tractor on a Trailer

The instructions given in this page are limited to a

practice recommended for transporting the tractor

correctly alone or with front loader, backhoe and

front loader/backhoe on a trailer.

To prevent serious personal injury or death:

●Always follow the cautions below.

• Be sure to raise and center the boom, close

the dipperstick, curl the bucket, and lock the

boom and swing before attempting to

transport the tractor.

• Use chains and chain binders to tie down the

tractor, front loader and backhoe securely to

the trailer or truck. Do not put any hold down

chains anywhere on the backhoe assembly.

• Before starting to travel or transporting the

tractor, verify and take note of the height of

the backhoe to ensure it meets the clearance

requirement of each underpass, etc.

●Exercise extreme care when loading or

unloading the tractor to or from a trailer or

truck.

●Close the fuel shut-off valve.

(A) Typical example of installed Slow Moving

Vehicle (SMV) emblem

NOTE

●Use a heavy-duty trailer to transport the tractor.

1. Drive the tractor forward onto the trailer.

2. Lower any implement onto the trailer deck.

3. Engage the parking brake securely.

4. Turn off the engine.

5. Remove the key from the starter key switch.

6. Close the fuel shut-off valve.

7. Tie down the tractor to the trailer with heavy-duty

straps, chains or cables. Direct both front and rear

straps down and outward from the tractor.

IMPORTANT

●The trailer must have signs and lights required by

law.

●When transporting the tractor on a trailer, the Slow

Moving Vehicle (SMV) emblem may have to be

removed to comply with local laws. For details,

please consult your local Cub Cadet Yanmar

dealer.

! WARNING! WARNING

P3014904

(A)

3016447

(A)

8-22

8. OPERATION

Sc2450 Operator's Manual

6. Operate on Slopes and Rough Terrain

Be extremely cautious when driving the tractor

on a slope and rough terrain.

●To increase traction power and provide 4-wheel

braking, engage the 4-wheel drive before

driving the tractor on a slope and rough terrain.

Remember that, although 4-wheel drive greatly

assists in approach to a steep slope, there is

greater possibility of the tractor tipping over.

●To improve braking power on sloped, frozen,

wet or graveled surfaces, engage the 4-wheel

drive. Add weight to the tractor as necessary

and travel at a lower speed to prevent skidding

and loss of steering control.

●While driving the tractor, do not attempt to

climb a slope that is steeper than 11 degrees.

●Even on a slope that is less than 11 degrees, do

not turn or change the traveling direction, or

park perpendicular to the slope.

●Before approaching a slope, select an

appropriate speed setting (be sure to travel at a

lower speed when on a slope). NEVER shift

gears while on a slope as this can cause the

tractor to become uncontrollable and suddenly

roll downhill.

●Suddenly starting the tractor on an uphill slope

can cause the front wheels to lift off the ground

and result an extremely dangerous situation.

To avoid this problem, run the engine at a lower

speed and slowly start the tractor in motion.

● NEVER park the tractor on a slope. If parking on

a slope is unavoidable, chock the tires and set

the parking brake securely.

●On a slope, the tractor is unstable and more

prone to tipping over, possibly leading to

severe injury or even death. Remain very

cautious when your tractor is on any slope.

●To prevent the tractor from tipping over, travel

backward on steep slopes. If traveling

backward on the slope is difficult, do not

attempt to continue. Avoid extremely steep

slopes.

●When exiting a ditch or deep mud, or when

traveling on a steep slope, the risk of the

tractor tipping over is high. Special caution is

especially required in 4-wheel drive mode.

●Slowly move on any slope. NEVER change

speed or direction quickly.

●When backing up a slope, keep the tractor

parallel with the gradient of the slope.

! WARNING! WARNING

3013748

8-23

8. OPERATION

Sc2450 Operator's Manual

1. Before approaching a slope, set the range gear

lever to the slow position.

(A) Range gear lever

(a) Slow position

2. Lightly depress the forward side of the forward

and reverse drive pedal to start moving.

IMPORTANT

●Always slowly drive the tractor on a slope.

3. ALWAYS travel slowly on a slope.

4. Drive the tractor according to the type of a slope,

as instructed below:

■ Uphill/Downhill

Make sure that the range gear lever is in the slow

position. Run the engine at a lower speed.

■ Steep Downhill

To be able to apply the engine brake, turn the range

gear lever to the slow position.

(A) Forward and reverse drive pedal

3014919a

(A)

(a)

3014916b

(A)

8-24

8. OPERATION

Sc2450 Operator's Manual

7. About the Power Steering

●NEVER operate the steering wheel suddenly,

especially while traveling on a paved road.

Otherwise, an accident can occur.

The power steering feature is operative only when

the engine is running. Note that when the engine is

running at a lower speed, the steering wheel will

need slightly greater force. This is considered normal

operation.

IMPORTANT

●Fully turning the steering wheel will cause the relief

valve to trip and an audible signal will sound. This

situation may be ignored only for a short duration.

NEVER operate the steering in relief for a

prolonged period.

●Turning the steering wheel while the tractor is not

running can promote damage on the tires and rims.

Avoid such an action whenever possible.

■ 12V DC Outlet

This can be used when the key switch is in “ON”

position.

It can be used as a power source for electrical

goods.

(A) 12V DC outlet

IMPORTANT: Avoid damage.

●Do not connect a light or load of more than 120

watts.

●Do not use as a cigarette lighter.

●Do not use when wet.

●Long-term usage of the 12V DC outlet with the

engine stopped causes the battery to run out.

8. Accessory

! WARNING! WARNING

3014903o

(A)

9-1

9. POWER TAKE OFF (PTO)

Sc2450 Operator's Manual

9. POWER TAKE OFF (PTO)

ALWAYS ensure all moving components have

stopped rotating before connecting, disconnecting,

adjusting, cleaning or servicing any Power Take Off

(PTO)-driven implement.

ALWAYS ensure the Power Take Off (PTO) shaft

cover is installed. ALWAYS wait until the shaft has

completely stopped moving before attempting to

replace the Power Take Off (PTO) shaft cap.

ALWAYS follow the Power Take Off (PTO)-driven

implement operation manuals and safety decals and

instructions before installing or operating any Power

Take Off (PTO)-driven implements.

ALWAYS set the parking brake securely and put

wheel chocks in front and behind the rear wheels.

NEVER approach or touch any rotating component.

● Before connecting, disconnecting, adjusting

or cleaning any Power Take Off (PTO)-driven

implement, be sure to disengage the Power

Take Off (PTO), shut down the engine, and

make sure that all the components have

stopped their rotation.

● Do not approach rotating drivelines.

● Entanglement with a rotating driveline can lead

to serious injury or even death.

● Keep hands, feet and clothing away from the

rotating driveline.

● Make sure that all shields and guards are in

position and are correctly used.

● Do not run the engine at 3520 min

-1

(rpm) or

more while the Power Take Off (PTO) is

engaged.

! WARNING

1. Operate the Power Take Off (PTO)

! WARNING! WARNING

9-2

9. POWER TAKE OFF (PTO)

Sc2450 Operator's Manual

■ Rear- Power Take Off (PTO)

(A) Rear- Power Take Off (PTO) shaft

NOTE

●3-point hitch is option.

■ Mid- Power Take Off (PTO)

(A) Mid- Power Take Off (PTO) shaft

■ Engage the Power Take Off (PTO)

NOTE

●This tractor cannot drive the Power Take Off (PTO)

unless the operator sits on the seat. When the

operator leaves the seat while the Power Take Off

(PTO) is engaged, the safety interlock system

stops the implement and the engine.

●Normally, reversing the tractor stops the Mid-

Power Take Off (PTO) and the Rear-Power Take

Off (PTO). To drive the Power Take Off (PTO)

while reversing the tractor, use the reverse-

override-switch.

(A) Reverse-override-switch

P3014908

(A)

3014919d

(A)

3014919d

(A)

9-3

9. POWER TAKE OFF (PTO)

Sc2450 Operator's Manual

1. Sit on the operator's seat.

2. Engage the parking brake securely.

(A) Parking brake lever

3. Push in the Power Take Off (PTO) switch to set it

to the OFF position.

(A) Power Take Off (PTO) switch

(a) OFF position

(b) ON position

4. Start the engine.

5. Adjust the engine speed to 1500 min

-1

(rpm) or

lower.

IMPORTANT

●In order to reduce any shock at the time of driving

the Power Take Off (PTO), make sure to reduce

the engine speed before turning ON the Power

Take Off (PTO) switch.

6. According to an implement to be used, operate

the Mid-/Rear-Power Take Off (PTO) select lever.

(A) Mid-/Rear-Power Take Off (PTO) select lever

(a) Operating the Mid-Power Take Off (PTO) alone

(b) Operating the Mid-Power Take Off (PTO) and the

Rear-Power Take Off (PTO) at the same time

7. Pull up the Power Take Off (PTO) switch to set it

to the ON position.

3014916d

(A)

3014919g

(A)

(a) (b)

3014926

3014919e

(A)

(c)

(a)

(b)

9-4

9. POWER TAKE OFF (PTO)

Sc2450 Operator's Manual

8. While watching the instrument panel, adjust the

engine speed suitable for operating with the

throttle control lever.

(A) Throttle control lever

NOTE

●When the engine speed is 3300 min

-1

(rpm), the

Mid-Power Take Off (PTO) rotates at

approximately 2100 min

-1

(rpm).

●When the engine speed is 3100 min

-1

(rpm), the

Rear- Power Take Off (PTO) rotates at

approximately 540 min

-1

(rpm).

■ Disengage the Power Take Off (PTO)

1. Run the engine at a low speed.

2. Push in the Power Take Off (PTO) switch to set it

to the OFF position.

(A) Power Take Off (PTO) switch

(a) ON position

(b) OFF position

3014903e

(A)

3014919c

(A)

(b)

(a)

9-5

9. POWER TAKE OFF (PTO)

Sc2450 Operator's Manual

IMPORTANT: Avoid damage.

●Observe the driveline manufacturer's installation

instructions for driveline mounting angle and the

length of overlaps on the two-part driveline shafts.

An incorrectly installed implement can promote

wear of the driveline and/or damage the tractor.

●Use EXTREME caution to check that anyone or

any object is not present in the rear area when

using the Power Take Off (PTO) in reverse.

Normally, reversing the tractor stops the Mid-Power

Take Off (PTO) and the Rear-Power Take Off (PTO).

To drive the Power Take Off (PTO) while reversing

the tractor, observe the following instructions:

1. Press the reverse-override-switch to enable the

reverse override function.

2. The switch illuminates and the Mid-Power Take

Off (PTO) and the Rear-Power Take Off (PTO)

can be driven during reverse movement.

(A) Reverse-override-switch

●Once the reverse-override-switch is activated,

the reverse override function cannot be

disabled unless the engine is stopped.

2. Install an Implement to the Power Take Off (PTO) Drivelines

3. Operate the Power Take Off (PTO) while the Tractor is Traveling

in the Reverse Direction (Reverse Override Function)

! WARNING! WARNING

3014919f

(A)

! CAUTION

10-1

10. 3-POINT HITCH (Option)

Sc2450 Operator's Manual

10. 3-POINT HITCH (Option)

ALWAYS install an appropriate counterbalance to

the front of the tractor, if necessary, when using a 3-

point hitch-mounted implement.

During transportation, put the 3-point hitch control/

cutting height adjustment lever in its raised position

and lock it with the position stop knob. Do not fully

close the hydraulic flow control/stop knob.

ALWAYS use implements designed for a 3-point

hitch. NEVER use unapproved implements with the

3-point hitch. Contact your local Cub Cadet Yanmar

dealer for technical assistance.

Avoid injury:

●Make sure to stop the engine and then remove

the key. Make sure that the engine has been

stopped completely.

●Make sure that no other parts are moving. If any

part or component is still moving, wait until it

comes to complete stop.

●Installation/removal of an implement must be

performed in a flat and solid place.

●After the implement and the 3-point hitch have

been installed, check for possible interference

with the Power Take Off (PTO) shaft and other

machine components. If interference is found,

correct it.

(A) Rear-Power Take Off (PTO) shaft

(B) Left lift link (Option)

(D) Sway links (Option)

(E) Right lower link (Option)

(F) Right lift link (Option)

(G) Top link retainer

(H) Top link

! WARNING

1. 3-Point Hitch

! WARNING

3014910a

(A)

(C)

(D)

(H)

(G)

(F)

(E)

(B)

10-2

10. 3-POINT HITCH (Option)

Sc2450 Operator's Manual

■ Right Lift Link

●Chock the four wheels to secure the tractor,

before servicing the right lift link.

1. Lower the rear-mounted implement.

2. Safely stop the machine.

3. Loosen the locknut.

4. Turn the turnbuckle to adjust the right lift link

length until the implement mounted to the 3-point

hitch is level.

5. Retighten the locknut.

(A) Locknut (Option)

(B) Turnbuckle (Option)

■ Top Link

For adjusting the posture of the implement, use the

top link. The posture can be adjusted by turning the

turnbuckle to elongate or contract the link.

Installation position and length of the top link depend

on the implement. Adjust them according to the

instruction manual of the implement.

■ Sway Link

Adjust lateral sway of the implement by turning the

turnbuckle of the sway links to elongate or contract

the sway links.

1. Lower the rear-mounted implement.

2. Safely stop the machine.

3. Loosen the locknut.

4. Adjust the sway link length by turning the

turnbuckle, so that the implement has correctly

lateral sway.

5. After adjusting the lateral sway of the implement,

tighten the locknut.

(A) Locknut

(B) Turnbuckle

■ Hitch

●Do not tow anything by the use of the top link

or rear axle. Otherwise, the tractor can tip over

to cause serious injury or death.

●The hitch hole should only be used for towing

light loads. (Maximum towing load: 552 lb (250

kg))

●For maximum allowable weight to be towed,

see “Chapter 4. IMPLEMENT CAPACITIES”.

! WARNING

3014921

(A)

(B)

P3014908

(A) (B)

(C)

! WARNING! WARNING

11-1

11. HYDRAULIC SYSTEM

Sc2450 Operator's Manual

11. HYDRAULIC SYSTEM

ALWAYS fully release the internal

hydraulic pressure before

disconnecting a hydraulic line.

ALWAYS ensure that all

connections are tight and all the

hydraulic lines, pipes and hoses are free from wear

or damage.

IMPORTANT

●NEVER operate the 3-point hitch control/cutting

height adjustment lever before the engine has

been sufficiently warmed up.

●If the 3-point hitch control/cutting height adjustment

lever is operated before the engine has been

warmed up, the hydraulic system can be damaged

or develop a failure.

●If abnormal hydraulic noise occurs after the 3-point

hitch has been raised, then misadjustment or failure

of the hydraulic system should be suspected.

In such a case, immediately stop operation and

contact your local Cub Cadet Yanmar dealer to

service or repair the tractor.

■ Operate the 3-Point Hitch Control/Cutting Height Adjustment Lever to Raise or Lower

the 3-Point Hitch

Use the 3-point hitch control/cutting height

adjustment lever, when raising or lowering the Mid-

or Rear-mounted implement.

1. Shift the 3-point hitch control/cutting height

adjustment lever to the intended position.

2. Adjust the position stop knob to set the lowest

position of the implement to the desired height.

(A) 3-point hitch control/cutting height

adjustment lever

(B) Position stop knob

(a) Moving the 3-point hitch control/cutting height

adjustment lever forward will lower the

implement.

(b) Moving the 3-point hitch control/cutting height

adjustment lever backward will raise the

implement to raise higher.

! WARNING! WARNING

1. 3-Point Hitch Control System

3014918c

(A)

(b)

(a)

(B)

11-2

11. HYDRAULIC SYSTEM

Sc2450 Operator's Manual

■ Hydraulic Flow Control/Stop Knob

●Lowering the 3-point hitch too fast can lead to

accident or failure.

●Adjust the hydraulic flow control/stop knob so

that the time for lowering the implement from

the highest position to the lowest position

becomes 2 seconds or longer.

The lowering speed of the lower link is governed by

the position of the hydraulic flow control/stop knob.

Also, this knob is used to stop the lower link at an

intended position.

(a) Turning the knob clockwise will cause the

lowering speed to decrease.

Tighten the knob by fully turning clockwise to stop

the lower link.

(b) Turning the knob counterclockwise will cause the

lowering speed to increase.

●NEVER use the hydraulic flow control/stop

knob for holding an implement in the raised

position for maintenance. Loss of hydraulic

pressure may cause the implement to drop

suddenly. Lower the implement onto solid

blocks or remove before starting any

maintenance.

IMPORTANT

●For prolonged front loader work with a weight

attached to the lower link, raise the lower link to

any position and fully tighten the hydraulic flow

control/stop knob.

! WARNING! WARNING

3016494d

(b)

(a)

! WARNING! WARNING

12-1

12. TIRES, WHEELS AND BALLAST

Sc2450 Operator's Manual

12.

TIRES, WHEELS AND BALLAST

Mounting the tire is dangerous work. Qualified

professional personnel should mount the tire on the

rim using proper equipment.

ALWAYS keep the tires inflated to the correct

pressure. NEVER exceed the recommended inflation

pressure specified in this Operator’s Manual.

When servicing or replacing the tire(s), ALWAYS

keep the tractor securely supported.

ALWAYS keep the wheel bolts tightening torque to

the specified torque.

Avoid injury:

●Mounting the tire is dangerous work. Qualified

professional personnel should mount the tire

on the rim using proper equipment.

IMPORTANT

●Only use the tires approved by Cub Cadet Yanmar

dealers.

●When intending to use tires whose size is different

from that of the original tires, contact your local

Cub Cadet Yanmar dealer for the information about

front drive gear ratio.

! WARNING! WARNING

1. Tires

! WARNING! WARNING

12-2

12. TIRES, WHEELS AND BALLAST

Sc2450 Operator's Manual

■ Tire Inflation Pressure

●ALWAYS keep the tires inflated to the correct

pressure. NEVER exceed the recommended

inflation pressure specified in this Operator's

Manual.

Inflation pressure gradually reduces as time elapses.

Check the pressure of each tire before starting the

day's operation and inflate the tires as necessary to

the recommended pressures. If the tire pressures

significantly decrease though the tires are correctly

inflated every day, immediately contact your local

Cub Cadet Yanmar dealer to inspect or replace the

problem tire(s).

Before front loader work, make sure to check the tire

pressure and, if necessary, inflate the tire(s) to the

recommended pressure.

For the appropriate inflation pressure, see the

following table:

■ Wheel Bolt Tightening Torque

●ALWAYS keep the wheel bolts tightened to the

specified torque.

●With the wheel bolts loosened, do not drive the

tractor.

Before starting day’s operation, check tightening

torque of each of the tire wheel bolts and, if

necessary, retighten to the specified torque. For the

specified torque, see the following table:

Tire size Inflation pressure

(psi(kgf/cm

))

Inflation pressure when an implement such as the front

loader has been attached to the front of the machine

(psi(kgf/cm

))

Front

18 × 8.50 - 10

20 (1.4) 22 (1.5)

Rear

26 × 12.00 - 12

20 (1.4) 22 (1.5)

Front wheel bolt (ft•lb (N•m)) 52 - 59 (70 - 80)

Rear wheel bolt (ft•lb (N•m)) 52 - 59 (70 - 80)

! WARNING! WARNING

12-3

12. TIRES, WHEELS AND BALLAST

Sc2450 Operator's Manual

■ Front Ballast

To mount the front ballast, the optional front weight

hitch is required.

To improve stability and traction, add ballast

indicated in the table below. (Front End Weights)

Heavy pulling and rear-mounted implements can

cause the front wheels to lift. To cope with this

situation, add ballast so that reliable steering control

is maintained and tip-over of the tractor is prevented.

Remove the ballast when no longer necessary.

NOTE

●For information about the optional front weight

hitch, contact your local Cub Cadet Yanmar dealer.

Front End Weights (Option)

The front end weights can be mounted to the optional

front weight hitch. For the appropriate number of

weights, see the table below as reference only.

For accurate number of front weight, contact your

local Cub Cadet Yanmar dealer.

NOTE

●One (1) weight = 44 lb (20 kg)

(A) Front end weights (option)

(B) Front weight hitch (option)

●NEVER overload the tires. (Maximum front axle

load (Right + left): 1570 lb (712 kg))

●NEVER add weight in excess of the limits

indicated below.

Maximum Weight

●NEVER overload the tires.

●NEVER add weight in excess of the limits

indicated below.

Maximum weight: 176 lb (80kg) (44 lb × 4 pcs)

2. Ballast

Implement Name Number of Weight

42" Rotary Tiller 0

48" Box Scraper 0

60" Rear Blade 0

48" Grooming Mower 4

Post hole digger 0

3013715

(A)

(B)

! WARNING! WARNING

12-4

12. TIRES, WHEELS AND BALLAST

Sc2450 Operator's Manual

■ Rear Ballast

Using Liquid Weight for the Tires

Avoid injury:

●Installation of liquid weight requires special

implement and training. An exploding tire can

lead to injury. Contact your local Cub Cadet

Yanmar dealer or a tire service store to do this

task.

●When using the front loader, always put liquid

weight in the rear wheels. Failure to add

sufficient liquid weight may result in

overturning.

IMPORTANT: Avoid damage.

●NEVER exceed the maximum load ratings

indicated on the tires.

●ALWAYS cover rim completely with the liquid to

prevent corrosion, but do not exceed 75 %. A

larger amount of the liquid causes a limited air

space to be left in the tire, and which is too small to

absorb shocks, possibly leading to damaged tire.

NOTE

●We do not recommend that alcohol be used as the

ballast. Calcium chloride solution is heavier.

●A water solution of calcium chloride offers a safe

ballast, and will prevent freezing. If properly used, it

will not damage tires, tubes or rims.

●A mixture of 3.5 lb of calcium chloride and

approximately 1 US gal of water (0.4 kg/L) will not

fully freeze at a temperature above –50°F (–45°C).

●Fill tubeless tires at least to the valve stem height

(at least 75 %). Smaller amount of the solution

results in partly exposed rims, possibly leading to

corrosion of the rim.

(A) Correct: 75 %-full The remaining air can be

compressed like a cushion.

(B) Incorrect: 100 %-full Water cannot be

compressed.

(D) Water

IMPORTANT

●To avoid transmission from damage, do not use

rear wheel weight and liquid ballast at the same

time.

! WARNING! WARNING

(D) (D)

(A)

(C)

(B)

3013763

13-1

13. MAINTENANCE

Sc2450 Operator's Manual

13. MAINTENANCE

●For the checkpoints (✔) listed below, check and service at the intervals indicated in the table.

●For the inspection and maintenance procedures, see “Chapter 14. PERIODIC SERVICE”.

■ Tractor

1. Maintenance Check List

No Topic

Time

Interval

Service Intervals

After

Purchase

Daily

Hours

1 year

2 years

100

150

200

250

300

350

400

450

500

550

600

650

700

750

800

850

900

950

1000

1 Refueling the fuel tank Daily

✔

Engine oil level Check Daily

✔

Engine oil Change

50/100hr and

Every 100hr

✔✔✔✔✔✔✔✔✔✔✔

3 Engine oil filter Replace

50/200hr and

Every 200hr

✔✔✔✔✔✔

Transmission/

hydraulic oil level

Check Daily

✔

Transmission/

hydraulic oil

Change

50/300hr and

Every 300hr

✔✔ ✔ ✔

Transmission/

hydraulic oil filter

Replace

50/300hr and

Every 300hr

✔✔ ✔ ✔

Front axle case

oil level

Check Every 50hr

✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔

Front axle case oil

Change Every 500hr

✔✔

7 Front axle pivot Adjust Daily

✔

Fuel/water

separator

Check Every 50hr

✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔

Clean Every 100hr

✔✔✔✔ ✔✔✔✔✔

Replace Every 500hr

✔✔

9 Fuel filter Replace Every 500hr

✔✔

Air cleaner

element

Clean Every 100hr

✔✔✔✔✔✔✔✔✔✔

Replace Every 1 year

✔

11 Fan belt Adjust Every 50hr

✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔

Radiator hose

and clamp

Check Daily

✔

Replace

Every 2 years

✔

Radiator cooling

fins/screen

Clean Daily

✔

Front grille

screen

Clean Daily

✔

15 Cooling system

Check Daily

✔

Flush

Every 1000hr

or a year

✔✔

16 Coolant Change

Every 1000hr

or a year

✔✔

17 Fuel line

Check Daily

✔

Replace

Every 2 years

✔

18 Intake air hose

Check Daily

✔

Replace

Every 2 years

✔

Safety interlock

system

Check Daily

✔

13-2

13. MAINTENANCE

Sc2450 Operator's Manual

For assistance in periodic maintenance procedures, contact your local Cub Cadet Yanmar dealer.

20 Greasing and lubricating Every 50hr

✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔

21 Brake Check Daily

✔

Seat belt & Roll-

Over Protective

Structure (ROPS)

Check Daily

✔

23 Wheel bolt torque Check Daily

✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔

24 Inflation pressure Check Daily

✔

25 Toe-in Adjust Every 200hr

✔✔✔✔✔

Engine valve

clearance

Adjust Every 1000hr

✔

Fuel injection

nozzle injection

pressure

Check Every 1000hr

✔

Fuel injection

pump

Check Every 1000hr

✔

29 Light bulb Check Daily

✔

30 Hydraulic hose

Check Daily

✔

Replace

Every 2 years

✔

No Topic

Time

Interval

Service Intervals

After

Purchase

Daily

Hours

1 year

2 years

100

150

200

250

300

350

400

450

500

550

600

650

700

750

800

850

900

950

1000

13-3

13. MAINTENANCE

Sc2450 Operator's Manual

(Specifications and design are subject to change without prior notice for improvement.)

1. Technical Document

[U.S.A. and Canada]

To obtain a copy of Illustrated Parts List or Technical

Manual for the tractor, contact your local Cub Cadet

Yanmar dealer.

2. Parts

We recommend the use of the Cub Cadet Yanmar

authentic parts and lubricants that are available from

your local Cub Cadet Yanmar dealer.

When ordering a part, tell your local dealer the

machine serial number and engine serial number for

the tractor. These numbers are those previously

entered in “Chapter 2. SERVICE THE PRODUCT”.

2. Lubricants

No. Locations Capacities Lubricants

1 Fuel

Approximately 5.8 US gal

(22 L)

No.2-D diesel fuel

No.1-D diesel fuel if temperature is below 14°F (–10°C)

2Coolant

Approximately 3.4 US qt

(3.2 L)

High Quality Permanent Type Antifreeze

(Ethylene Glycol with corrosion and rust

inhibitor chemicals)

Coolant Mixture Ratio

Distilled Water 50 % : Antifreeze 50 %

Engine crankcase

(with filter)

Approximately 2.5 US qt

(2.4 L)

API Service Classifications CF or higher

SAE 10W-30 or SAE 10W-40

4 Transmission case

Approximately 2.0 US gal

(7.5 L)

Cub Cadet Hydraulic/Transmission Fluid

5 Front axle case

Approximately 2.6 US qt

(2.5 L)

Cub Cadet GEAR LUBE

or SAE 80W-90 gear oil

Greasing No. of greasing points Capacity Type of grease

Drive pedal 1 Until grease overflows

Cub Cadet

251H EP Grease

General all purpose

grease

NLGI grade No.2

3. Replacement Parts

14-1

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

14. PERIODIC SERVICE

NEVER smoke around the battery or

during refueling. Keep sparks or open

flames away from the battery and fuel

tank. The battery emits hydrogen and

oxygen during recharging and can pose

a serious hazard.

NEVER work under any hydraulically supported

devices. Such devices can settle, suddenly leak or

be accidentally lowered. ALWAYS support the tractor

securely with rugged stands or other appropriate

means.

ALWAYS allow the tractor to fully cool down before

accessing the engine, muffler, radiator or other hot

components.

ALWAYS park your tractor on a solid, level ground,

engage the parking brake securely, turn off the

Power Take Off (PTO) switch, lower the implement to

the ground, set the forward and reverse drive pedal

to the NEUTRAL position, stop the engine and

remove the key from the starter key switch before

starting any service work.

A maintenance, inspection, repair or replacement

service of engine emission control devices and

systems may be performed at the owner’s expense

by any qualified off-road engine repair shop or

mechanic. Warranty repairs must be executed by an

authorized Cub Cadet Yanmar dealer.

Avoid personal injury:

●Engine emission gas contains carbon monoxide

that, if inhaled, can cause severe poisoning or

even death.

●NEVER run the engine in a poorly ventilated,

enclosed indoor space.

●To release the engine emission gas to an

outdoor area, connect an extension pipe to the

engine exhaust pipe.

●Allow fresh outside air to flow into the work

space to remove the engine emission gas from

that space.

! WARNING! WARNING

■ Warranty and Repair of the Engine

NEVER inhale the emission gas.

! WARNING! WARNING

14-2

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

Periodic Service of the Tractor

●Do not open the hood while the engine is running.

●Do not touch the hot muffler or exhaust pipe.

■ Open the Hood

1. Lower the front loader down to the ground and

make sure that the bucket is also level with the

ground.

2. Tilt the hood guard forward toward the tractor

body while pulling the lever fully in the direction of

(a).

(A) Hood guard

(B) Lever

(a) Pull

3. Turn the hood open/close knob clockwise while

slightly pushing the upper portion of the hood.

The hood lock will be released.

(A) Hood open/close knob

(a) Close

(b) Open

1. Open/Close the Hood

! WARNING! WARNING

3016410a

3016450

(a)

(A)

(B)

3014920

(A)

(a)

(b)

14-3

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

4. Lift up the hood with both hands and tilt it forward.

(a) Tilt the hood forward

■ Close the Hood

1. Lower the front loader down to the ground and

make sure that the bucket is also level with the

ground.

2. Lift up the hood with both hands and tilt it toward

the engine side.

3. Lock the hood open/close knob by turning it

counterclockwise while slightly pushing the upper

portion of the hood.

4. Lift the hood guard until a locking sound is heard.

●When closing the hood, avoid pinching fingers

with the hood.

●Periodically clean around the hood open/close

knob. Accumulation of soil or dust can cause the

knob to be difficult to turn.

3016451

(a)

! CAUTION

NOTICE

14-4

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

Always complete the designated daily checkpoints

before attempting to start or operate the tractor.

Failure to complete these checkpoints could result in

personal injury or decrease the service life of the

tractor and its parts.

To avoid personal injury:

●Before attempting to check or service the

tractor, always make sure it is on a level surface,

the engine is shut off, the parking brake is

engaged, and full weight of the implement is on

the ground.

■ Visual Checks

Before service or operation, always check under and

around the tractor for parts that may have come loose,

build-up of grease or dirt, leakage, and broken or worn

parts.

■ Refill the Fuel Tank

IMPORTANT: Avoid damage.

●NEVER use a galvanized container to store fuel.

Diesel fuel in a galvanized container reacts with the

zinc coating in the container to generate zinc flakes.

If the fuel contains water, a zinc gel will also occur.

The zinc gel and flakes will quickly clog the fuel filter

and damage the fuel injection nozzle and fuel pump.

Diesel Fuel Specifications

Diesel fuel should comply with the following

specifications. The table lists several worldwide

specifications for diesel fuels.

2. Daily Checks

Diesel Fuel Specification Location

No. 2-D, No. 1-D, ASTM D975-94 USA

EN590:96 European Union

ISO 8217 DMX International

BS 2869-A1 or A2 United Kingdom

JIS K2204 Grade No.2 Japan

KSM-2610 Korea

GB252 China

! WARNING

14-5

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

Additional Technical Fuel Requirements

●The fuel cetane number should be equal to 45 or

higher.

●The sulfur content must not exceed 0.5 % by

volume. Less than 0.05 % is preferred.

●Bio-Diesel fuels. See “Bio-Diesel Fuels” on page

14-6.

●NEVER mix kerosene, used engine oil, or residual

fuels with the diesel fuel.

●The water and sediment in the fuel should not

exceed 0.05 % by volume.

●Keep the fuel tank and fuel-handling equipment

clean at all times.

●Poor quality fuel can reduce engine performance

and/or cause engine damage.

●Fuel additives are not recommended. Some fuel

additives may cause poor engine performance.

Consult your Yanmar dealer for more information.

●Ash content not to exceed 0.01 % by volume.

●Carbon residue content not to exceed 0.35 % by

volume. Less than 0.1 % is preferred.

●Total aromatics content should not exceed 35 % by

volume. Less than 30 % is preferred.

●PAH (polycyclic aromatic hydrocarbons) content

should be below 10 % by volume.

●Metal content of Na, Mg, Si, and Al should be equal

to or lower than 1 mass ppm. (Test analysis

method JPI-5S-44-95)

●Lubricity: Wear mark of WS1.4 should be Max.

0.018 in. (460 µm) at HFRR test.

14-6

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

Bio-Diesel Fuels

In Europe and in the United States, as well as some

other countries, non-mineral oil based fuel resources

such as RME (Rapeseed Methyl Ester) and SOME

(Soybean Methyl Ester), collectively known as FAME

(Fatty Acid Methyl Esters), are being used as

extenders for mineral oil derived diesel fuels.

Cub Cadet Yanmar approves the use of bio-diesel

fuels that do not exceed a blend of 5 % (by volume)

of FAME with 95 % (by volume) of approved mineral

oil derived diesel fuel. Such bio-diesel fuels are

known in the marketplace as B5 diesel fuels.

These B5 diesel fuels must meet certain

requirements.

1. The bio-fuels must meet the minimum

specifications for the country in which they are

used.

• In Europe, bio-diesel fuels must comply with the

European Standard EN14214.

• In the United States, bio-diesel fuels must

comply with the American Standard ASTM D-

6751.

2. Bio-fuels should be purchased only from

recognized and authorized diesel fuel suppliers.

Precautions and concerns regarding the use of

bio-fuels:

1. Free methanol in FAME may result in corrosion of

aluminum and zinc FIE components.

2. Free water in FAME may result in plugging of fuel

filters and increased bacterial growth.

3. High viscosity at low temperatures may result in

fuel delivery problems, injection pump seizures,

and poor injection nozzle spray atomization.

4. FAME may have adverse effects on some

elastomers (seal materials) and may result in fuel

leakage and dilution of the engine lubricating oil.

5. Even bio-diesel fuels that comply with a suitable

standard as delivered, will require additional care

and attention to maintain the quality of the fuel in

the equipment or other fuel tanks. It is important

to maintain a supply of clean, fresh fuel. Regular

flushing of the fuel system, and/or fuel storage

containers, may be necessary.

6. The use of bio-diesel fuels that do not comply with

the standards as agreed to by the diesel engine

manufacturers and the diesel fuel injection

equipment manufacturers, or bio-diesel fuels that

have degraded as per the precautions and

concerns above, may affect the warranty

coverage of your engine.

14-7

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

Remember that fuel vapor is explosive and

flammable:

●Stop the engine before refilling the fuel tank.

●NEVER smoke while handling fuel.

●Keep the fuel away from an open flame or

sparks.

●Refuel outdoors or in a well-ventilated area.

●Wipe away spilled fuel immediately.

●To prevent static electric discharge, use a clean

approved non-metal fuel container.

●To prevent static electric discharge, use a clean

approved plastic funnel that has no metallic

screen mesh or filter.

IMPORTANT Be careful to avoid damage.

●Dirt and water in the fuel can damage the engine.

●Remove dirt and debris from the fuel tank opening.

●Use clean, fresh, stabilized fuel.

●At the end of operation for the day, fill the fuel tank

to prevent condensation from occurring in the fuel

tank.

●When filling the fuel tank or container use a non-

metallic funnel that has a plastic mesh strainer.

1. Park the tractor safely and securely.

2. Allow the engine to cool off for several minutes

before refueling.

3. Remove the fuel tank cap.

4. Fill the tank with fresh fuel to the bottom of filler

neck.

IMPORTANT

●NEVER overfill the fuel tank.

5. Replace the fuel tank cap.

(A) Fuel tank cap

(B) EPA regulation label CY-114110-07760

EPA REGULATION

USE LOW SULFER FUEL OR ULTRA LOW

SULFER FUEL ONLY

! WARNING

3014915a

(A)

(B)

EPA REGULATION

USE LOW SULFER

FUEL OR ULTRA LOW

SULFER FUEL ONLY

(B)

14-8

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

■ Check the Engine Oil Level

IMPORTANT: Avoid damage.

●ALWAYS check the oil level before day's

operation. If the oil level is low, a serious engine

problem can occur.

●ALWAYS check the oil level before operation.

●ALWAYS check the oil level when the engine is

cold and not running.

●ALWAYS maintain the oil level between the lower

and the upper marks.

●ALWAYS shut the engine down and allow to cool

before adding the engine oil.

1. Park the tractor safely and securely.

2. Open the hood.

IMPORTANT: Avoid damage.

●Prevent dirt and other contaminants from entering

the engine. Clean the area around the dipstick

before removing it.

3. Remove the dipstick. Clean the dipstick blade

with a clean paper towel or shop rag.

4. Insert the dipstick completely.

5. Remove the dipstick again.

6. Check the oil level on the dipstick. The oil level

should be kept between the lower and the upper

marks on the dipstick.

7. If the oil level is low:

(1) Remove the oil fill cap.

(2) Refill the specified oil until the oil level reaches

between the lower and upper marks.

(A) Dipstick

(B) Oil fill cap

(a) Upper mark

(b) Lower mark

NOTE

●NEVER overfill the engine with oil.

8. If the oil level exceeds the upper mark, drain the

oil to a correctly level.

9. Replace the dipstick.

10.Close the hood.

P3014912

(B)

(A)

P3014911a

(A)

(a)

(b)

14-9

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

■ Check the Transmission/Hydraulic Oil Level

IMPORTANT: Avoid damage.

●ALWAYS check the oil level before day's

operation. If the oil level is low, a serious

transmission problem can occur.

●ALWAYS check the oil level before operation.

●ALWAYS check the oil level when the engine is

cold and not running.

●ALWAYS maintain the oil level between the high

and low marks.

●ALWAYS shut the engine down and allow to cool

before adding the transmission/hydraulic oil.

1. Park the tractor safely and securely. Allow the

tractor to cool off for at least 1 hour.

2. Tilt the seat forward.

IMPORTANT: Avoid damage.

●Prevent dirt and other contaminants from entering

the transmission. Clean the area around the

dipstick before removing it.

3. Remove the dipstick.

4. Thoroughly wipe the dipstick clean with a rag.

Only insert the dipstick into the hole. At this point,

do not fasten the dipstick into the hole.

NOTE

●The dipstick is integrated with the oil fill cap.

5. Check the oil level on the dipstick. The oil level

should be between the high and low marks on the

dipstick.

6. If the oil level is low:

Clean the area around the oil fill cap, then remove

the fill cap from the transmission housing.

Add Cub Cadet Hydraulic/Transmission Fluid

through the fill port until the oil level is

appropriate.

NOTE

●NEVER overfill.

7. Replace and tighten the dipstick.

(A) Oil fill cap

(B) Dipstick

(a) High mark

(b) Low mark

3016489

(A)

P3014914

(B)

(a)

(b)

3014928

14-10

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

■ Check the Radiator Hoses and Clamps

●ALWAYS stop the engine, allow it to cool and

remove the key from the starter key switch

before checking the radiator hoses and clamps.

1. Park the tractor safely and securely.

2. Open the hood.

NOTE

●Visually check the hoses for cracks and wear.

Squeeze the hoses to check for evidences of

deterioration. Hoses should not be hard and brittle

nor soft or swollen.

3. Check the upper radiator hose for any damage

including cracking. Replace the damaged hose.

4. Check the hose clamps as necessary.

5. Check the lower radiator hose for any damage

including cracking. Replace the damaged hose.

6. Check the hose clamps as necessary.

7. Close the hood.

(A) Upper radiator hose

(B) Hose clamps

■ Clean the Radiator Cooling Fins and Screen

●ALWAYS stop the engine and remove the key

from the starter key switch before cleaning the

radiator cooling fins and screen.

Avoid injury. Compressed air can cause debris

and dirt to powerfully fly a long distance:

●NEVER allow bystanders near the tractor.

●When using compressed air for cleaning,

ALWAYS ensure adequate air inflow to prevent

engine overheating, or wear protective

goggles.

●Reduce compressed air pressure to 30 psi

(210 kPa).

! WARNING! WARNING

P3014915

(B)

(A)

(B)

P3014916

(B)

(C)

(B)

! CAUTION

! WARNING! WARNING

14-11

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

IMPORTANT: Avoid damage.

●The cooling fins, screen must remain clean in order

to ensure adequate air inflow to prevent engine

overheating.

1. Park the tractor safely and securely.

2. Allow the engine to cool completely.

3. Open the hood.

4. Lift up the intake air hose and then move it to the

sideway. Then, raise the radiator cooling screen

and remove it.

5. Clean the screen with compressed air, brush or

cloth.

6. Remove any dirt and debris from the fins at the

front and rear of the radiator and from the fan with

compressed air.

IMPORTANT: Avoid damage.

●When using compressed air, be careful not to

damage the cooling fins.

7. Reinstall the radiator cooling screen and the

intake air hose.

8. Close the hood.

(A) Radiator cooling screen

(B) Intake air hose

■ Clean the Rear Grille Screen

IMPORTANT: Avoid damage.

●Clean the grille to prevent the engine from

overheating and ensure adequate air inflow.

1. Check the grille for dirt, grass clippings and

debris.

2. Clean the grille with a brush or cloth.

(A) Rear grille screen

P3014917

(B)

(A)

3014915a

(A)

14-12

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

■ Check the Cooling System

●ALWAYS allow radiator to cool before

removing the radiator tank cap. The radiator

will be hot and can cause burns. When the

radiator tank cap is removed, pressure build-up

in the cooling system can cause the coolant to

spray out explosively.

●ALWAYS shut the engine down and allow it to

cool.

●NEVER remove the radiator tank cap before the

radiator and the engine are sufficiently cool

such that they can be touched with bare hands.

●Loosen the radiator tank cap carefully to the

first stop, allowing excessive pressure to

escape. Only then remove the radiator tank

cap. If the tractor is equipped with a coolant

reserve tank, add coolant or water to the

reserve tank, not to the radiator.

1. Park the tractor safely and securely.

2. Allow the engine to cool down.

3. Open the hood.

4. Check that the coolant level of the reserve tank is

between the FULL line and the LOW line.

5. When necessary, remove the reserve tank cap

and add the coolant.

6. Add pre-diluted coolant which is a 50:50

antifreeze-water mixture.

Use High Quality Permanent Type Antifreeze

(Ethylene Glycol with corrosion and rust inhibitor

chemicals).

7. Reinstall the reserve tank cap.

8. Close the hood.

(A) Reserve tank

(B) Reserve tank cap

(a) FULL line

(b) LOW line

! WARNING! WARNING

3014913

(A)

(B)

(a)

(b)

14-13

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

■ Check the Fuel Line

Open the hood and then check:

●The rubber hose for oil leakage

●The rubber hose for any damage

(A) Fuel line

■ Check the Intake Air Hoses and Clamps

1. Park the tractor safely and securely.

2. Open the hood.

3. Ensure that the hose and the hose clamps are in

good condition.

4. Check the hose clamps for looseness.

5. Close the hood.

(A) Intake air hose

(B) Hose clamps

P3014918

(A)

P3014920

(B)

(A)

14-14

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

■ Check the Safety Interlock System

To avoid personal injury, do as follows:

●Read the “Safety Precautions” in the front of

this manual.

●Read the danger, warning and caution

statements on the safety-alert symbols on the

tractor.

●To avoid possible poisoning from exhaust

fumes, NEVER operate the engine in an

enclosed place that lacks adequate ventilation.

●NEVER start the engine while standing on the

ground. ALWAYS start the engine from the

operator’s seat.

●Before starting the engine, ALWAYS set the

forward and reverse drive pedal to the

“NEUTRAL” position and the Power Take Off

(PTO) switch to the “OFF” position.

Check the following points to be sure that the

machine is in the normal state and ready to start.

If a fault is detected on the machine, do not operate

the machine and contact your local Cub Cadet

Yanmar dealer for technical assistance.

Before checking the safety interlock system, perform

the following procedure.

1. Sit on the operator's seat.

2. Park the tractor safely on a solid, flat, level

ground.

3. Engage the parking brake securely.

4. Turn off the Power Take Off (PTO) switch.

5. Set the forward and reverse drive pedal to the

NEUTRAL position.

6. Stop the engine.

1. Power Take Off (PTO) Safety Switch

1. Pull up the Power Take Off (PTO) switch to set it

to the ON position.

2. Turn the key to the START position.

3. Make sure that the starter motor does not crank.

4. Turn the key to the OFF position.

5. Push in the Power Take Off (PTO) switch to set it

to the OFF position.

6. Turn the key to the START position.

7. Make sure that the starter motor starts running.

(A) Power Take Off (PTO) switch

! WARNING! WARNING

3014919c

(A)

14-15

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

2. Parking Brake Safety Switch

1. Disengage the parking brake.

2. Turn the key to the START position.

3. Make sure that the starter motor does not crank.

4. Turn the key to the OFF position.

5. Engage the parking brake securely.

6. Turn the key to the START position.

7. Make sure that the starter motor starts running.

3. Drive Pedal Safety Switch

1. Turn the key to the START position to run the

engine.

2. Pull up the Power Take Off (PTO) switch to set it

to the ON position.

3. Disengage the parking brake.

4. Slowly step on the reverse side of the forward and

reverse drive pedal.

5. Make sure that the PTO is not running.

4. Drive Pedal and Seat Safety Switch

1. Turn the key to the START position to run the

engine.

2. Make sure that the Power Take Off (PTO) switch

is in the OFF position.

3. Raise up slightly off the seat (Do not get off the

machine).

4. Slowly step on the drive pedal.

5. Make sure that the engine stops after around one

second.

5. Seat Safety Switch

1. Turn the key to the START position to run the

engine.

2. Pull up the Power Take Off (PTO) switch to set it

to the ON position.

3. Raise up slightly off the seat (Do not get off the

machine).

4. Make sure that the engine stops after around one

second.

14-16

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

■ Check and Adjust the Brake

●Before checking the brake pedal, park the

tractor safely on solid, level ground, stop the

engine and remove the key from the starter key

switch.

Check if the play of the brake is between 0.8 and 1.2

in. (20 and 30 mm).

If not, contact your local Cub Cadet dealer for

technical assistance.

(a) 0.8 to 1.2 in. (20 to 30 mm)

■ Check the Seat Belt and Roll-Over Protective Structure (ROPS)

1. Before operating the tractor, always make sure

that the seat belt and Roll-Over Protective

Structure (ROPS) mounting hardware are in

correct working order.

2. Replace any damaged hardware.

! CAUTION

3014916e

(a)

14-17

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

■ Check the Wheel Bolt Tightening Torque

●To prevent possible roll-over of the tractor,

check the rim, hub and wheel bolts before

starting day’s operation.

Before starting day's operation, check tightening

torque of each of the tire wheel bolts and, if

necessary, retighten to the specified torque.

Check the tightening torque after the first 5, 15 and

50 hours and thereafter every 50 hours of operation.

If necessary, retighten to the specified torque.

For the specified torque, see the following table.

■ Check the Inflation Pressure

●ALWAYS keep the tires inflated to the correct

pressure. NEVER exceed the recommended

inflation pressure specified in this Operator's

Manual.

Adjust the front and rear tires to the standard pressure.

Check the tires for fissures and any other damages.

Before front loader work, make sure to check the tire

pressure and, if necessary, inflate the tire(s) to the

recommended pressure.

(a) Too high

(b) Standard

Inflation pressures

Front wheel bolt (ft•lb (N•m)) 52 - 59 (70 - 80)

Rear wheel bolt (ft•lb (N•m)) 52 - 59 (70 - 80)

Tire size Inflation pressure

(psi(kgf/cm

))

Inflation pressure when an implement such as the

front loader has been attached to the front of the

machine (psi(kgf/cm

))

Front

18 × 8.50 - 10

20 (1.4) 22 (1.5)

Rear

26 × 12.00 - 12

20 (1.4) 22 (1.5)

! WARNING! WARNING

3130210

(b)(a) (c)

14-18

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

■ Check the Light Bulbs

1. Inspect the lights for blown bulbs and damaged

lenses.

2. Replace a broken bulb or lens.

■ Check the Tie-rod Rubber Boots

Check the tie-rod rubber boots for any break.

If any break is found, contact your local Cub Cadet

Yanmar dealer for technical assistance.

(A) Tie-rod rubber boots

■ Check and Clean the Electrical System

To avoid personal injury:

●Always replace damaged wires or connections

immediately and tighten any loose terminal or

connector. Loose or damaged wires, terminals

or connectors can influence the performance of

or cause damage to electrical components,

result in a dead battery or a short circuit, which,

consequently, can pose a fire hazard.

●Never use a fuse with a larger capacity than that

recommended and do not attempt to bypass the

fuse system. Doing so could result in personal

injury, damage to electrical components or even

pose a fire hazard.

●Carefully plug and unplug any wiring connection

that is protected by a waterproof plug and

ensure that they are sealed securely and

properly after assembly.

●Regularly clean around the battery, all electrical

wiring, the engine and the exhaust system

before attempting to start or operate the tractor.

Any accumulated dirt, fuel, grease or other

deposits in these areas poses a fire hazard.

Never allow high-pressure water to directly contact

the battery, wiring, terminals, connectors, electrical

components, or the instrumental panel. Doing so can

cause an electrical malfunction.

Regularly check the following points:

1. Wiring harness clamps: Replace if necessary.

2. Wiring insulation: Replace if cracked or otherwise

damaged.

3. Connectors and terminals: Tighten if loose, clean if

contaminated, and replace if damaged or discolored.

4. Instrument panel: Make sure all switches and

gauges are operating correctly.

Contact your local Cub Cadet Yanmar dealer in

regard to maintenance, diagnosis and repair.

P3014960

(A) (A)

! WARNING! WARNING

14-19

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

■ Adjust Front Axle Pivot

If the front axle pivot pin has been adjusted

incorrectly, vibration can be triggered on the front

wheels, possibly leading to vibration in the steering

wheel.

Adjusting procedure

Tighten the adjusting bolts to the torque of 106.2

ft•lbs to 132.8 ft•lbs (78.4 to 98.0 N•m). Make sure

that the free play on the front axle in the forward/

reverse direction measures about 0.024 in. (0.6 mm).

(A) Adjusting bolt

3016452

(A)

14-20

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

■ Check the Hydraulic Hoses

●When checking for oil leakage, use a sheet(s)

of paper, etc.

●ALWAYS wear protective goggles and gloves.

Check the conditions of the hydraulic hoses.

Check for oil leakage. If any, tighten the bolts to the

specified torque as described below.

1. Power Steering Hoses

(A) Power steering hose

(a) 9/16-18UNF 25 - 28 N•m

(18.4 - 20.7 ft•lbs)

(b) 9/16-18UNF 23 - 27 N•m

(17.0 - 19.9 ft•lbs)

! WARNING! WARNING

3014934

(a)

3014935

(A)

(b)

14-21

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

2. Implement Control Valve Hoses

(A) Implement Control Valve hose

NOTE

●When changing the orientation of (c) is necessary

for replacing the hose, it may be preferable to

loosen the pipe fitting bolt. In such a case, replace

the copper gasket.

3. Lift Cylinder Hose and Drain Hose

(A) Lift cylinder hose

(B) Drain hose

4. Oil Cooler Hoses

(A) Oil cooler hose

(a) 9/16UNF - 14.5 23 - 27 N•m

(17.0 - 19.9 ft•lbs)

(b) 9/16UNF - 14.5 39 - 49 N•m

(28.8 - 36.1 ft•lbs)

(a) G1/4 22.6 - 27.5 N•m

(16.7 - 20.3 ft•lbs)

(b) Connector PF1/4 22.6 - 27.5 N•m

(16.7 - 20.3 ft•lbs)

(a) Clamp 2.5 - 3.4 N•m

(1.8 - 2.5 ft•lbs)

3014932

(a)

(A)

(a)

(b)

(c)

3014931

(a)

(A)

(c)

(b) (B)

3014933

(a)

(A)

14-22

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

■ Change the Engine Oil

For the maintenance work, see “Engine Oil” on page 14-27.

■ Replace the Engine Oil Filter

For the maintenance work, see “Replace the Engine Oil Filter” on page 14-31.

■ Change the Transmission/Hydraulic Oil

For the maintenance work, see “Change the Transmission/Hydraulic Oil and Replace the Transmission/Hydraulic

Oil Filter” on page 14-33.

■ Replace the Transmission/Hydraulic Oil Filter

For the maintenance work, see “Change the Transmission/Hydraulic Oil and Replace the Transmission/Hydraulic

Oil Filter” on page 14-33.

■ Check the Front Axle Oil Level

IMPORTANT: Avoid damage.

●Before checking the oil level, allow the oil to settle

for 1 hour so that the current oil level can be

accurately read on the dipstick. Recheck the oil

level after operating the tractor for several hours.

1. Park the tractor safely and securely.

2. Allow the tractor to cool off for at least 1 hour and

the oil to settle.

IMPORTANT: Avoid damage.

●Dirt and debris in the oil may damage the front

axle. Clean the area around the dipstick before

removing it.

3. Loosen and remove the dipstick situated on the

right side of the front axle.

4. Wipe the dipstick clean with a rag. Only insert the

dipstick into the hole on axle. At this point, do not

fasten the dipstick into the axle case.

5. Remove the dipstick again. Read the oil level on

the dipstick. The oil level should be between the

high and low level marks on the dipstick.

When the oil level is low:

• Add Cub Cadet GEAR LUBE or SAE 80W-90

gear oil through the fill opening until the oil level

is appropriate.

• Reinstall and tighten the dipstick.

6. Operate the tractor for several hours, and then

check the front axle oil level again.

(A) Dipstick

3. First 50 Hours

4. Every 50 Hours

P3014922

(A)

High

Low

3013741

(A)

3014928

14-23

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

■ Checking the Fuel/Water Separator

●Remember that vapor from diesel fuel is

explosive and flammable.

●NEVER smoke while handling the fuel.

●Keep the fuel away from open flames or sparks.

●Before servicing, stop the engine.

●Before servicing, allow the engine to cool off.

●Work in a well-ventilated area.

●Immediately wipe away spilled fuel.

1. Park the tractor safely.

2. Open the hood.

3. Turn the valve lever to the “Close” position.

4. Turn the locking collar counterclockwise to unlock

the sediment bowl, then pull the sediment bowl

downward to remove from the separator body.

5. When water and/or sediment is/are found in the

sediment bowl, discard it together with fuel in the

sediment bowl and clean the sediment bowl with

diesel oil.

6. Reinstall the sediment bowl, and turn the valve

lever to the “ON” position.

7. Close the hood.

8. Turn the key to the START position to crank the

engine to bleed the air from the fuel system.

(A) Valve lever

(B) Sediment bowl locking collar

(O) Open

! WARNING! WARNING

(B)

3014908a

(A)

(O)

(C)

14-24

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

■ Adjust the Fan Belt

●Fingers or loose clothing can be entangled with

rotating parts. Before servicing, stop the

engine and allow all the moving parts to stop

completely.

1. Check the Belt Tension

1. Park the tractor safely and securely.

2. Open the hood.

3. With a thumb, gently apply pressure to the

midpoint of the belt between the pulleys. The belt

should deflect inward by approximately 0.4 to 0.6

in. (10 to 15 mm).

4. If the deflection is not as specified, adjust the

tension of the belt.

(A) Midpoint of the belt

(B) Adjusting bolt

(D) Mounting bolt (b)

2. Adjust the Belt Tension

1. Loosen the adjusting bolt.

2. Loosen the mounting bolts.

3. Exert an outward pressure to the alternator

housing to attain the correct tension.

4. Retighten the mounting bolt (b), mounting bolt (a)

and adjusting bolt in that order.

5. Check the belt tension. Adjust as necessary.

6. Close the hood.

3. Replace the Belt

If the belt is excessively worn, damaged or

elongated, replace it with a new one. Contact your

local Cub Cadet Yanmar for technical assistance.

! WARNING! WARNING

P3014923

(A)

3014912a

(B)

(A)

(C)

(D)

14-25

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

■ Grease and Lubricate

IMPORTANT: Prevent damage.

●Use the recommended Cub Cadet Yanmar

greases to avoid failed or prematurely worn parts

and components.

●The recommended Cub Cadet Yanmar greases

perform efficiently in an average ambient

temperature range from –20 to +275 °F (–29 to

+135 °C)

●When operating the tractor outside this

temperature range, contact your local Cub Cadet

Yanmar dealer for applicable special-purpose

greases.

Use Cub Cadet 251H EP Grease or General all

purpose grease NLGI grade No.2 or equivalent.

1. Lubricate Lube Fittings on the Tractor

[Extremely wet or muddy conditions]

Lubricate the lube fittings once every 10 operating

hours or once a day.

[All other conditions]

Lubricate the lube fittings once every 50 operating

hours.

(A) Forward and reverse drive pedal rod end

2. Lubricate the Implement Control Lever Linkage

(A) Lubricate the implement control lever linkage

Lubricate the implement control lever linkage with

Cub Cadet GEAR LUBE.

P3014924

(A)

P3014925

(A)

14-26

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

3. Lubricate the Seat Slide Rails

1. Pivot the operator's seat forward.

2. Lubricate the seat slide rails with SUPER LUBE

lubricant.

3. Lower the operator's seat.

(A) Seat slide rails

4. Lubricate the 3-Point Hitch (Option)

Lubricate the ball joints and drawbar with SUPER

LUBE

lubricant.

(A) Ball joints

NOTE

●SUPER LUBE

is a registered trademark of Synco

Chemical Corp

3016489

(A)

3014910

(A)

14-27

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

■ Engine Oil

Use an oil of the viscosity appropriate for the air

temperature range expected until the next oil change

interval.

Engine crankcase

■ Change the Engine Oil

●When draining away the engine oil that is still

hot, stay clear of the hot engine oil and other

components to avoid burn.

IMPORTANT: Avoid damage.

●Change the engine oil more frequently if the tractor

is used in extremely demanding conditions:

• Extremely dusty conditions

• Frequent slow- or low-speed operation

• Frequent short trips

1. Run the engine to warm up the engine oil.

2. Park the tractor safely on a level surface.

3. Open the hood.

4. Place an engine oil pan beneath the engine oil

drain plug.

(A) Drain plug

5. Remove the drain plug by turning

counterclockwise and allow the oil to drain.

6. Reinstall the drain plug. Do not over-tighten it.

7. Remove the oil fill cap.

8. Add approximately 2.5 US qt (2.4 L) of the engine

oil.

9. Reinstall the oil fill cap.

10.Start and idle the engine to check for any leaks.

11.If there is any leakage, stop the engine, close the

hood and contact your local Cub Cadet Yanmar

for technical assistance.

12.Check the engine oil level and add more as

necessary.

13.Close the hood.

5. Every 100 Hours

Capacities Lubricants

Approximately

2.5 US qt (2.4 L)

API Service Classifications

CF or higher

SAE 10W-30 or SAE 10W-40

3013738

The following oils are recommended:

! WARNING! WARNING

(A)

P3014926

14-28

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

■ Clean the Fuel/Water Separator

●Remember that vapor from diesel fuel is

explosive and flammable.

●NEVER smoke while handling the fuel.

●Keep the fuel away from open flames or sparks.

●Before servicing, stop the engine.

●Before servicing, allow the engine to cool off.

●Work in a well-ventilated area.

●Immediately wipe away spilled fuel.

NOTE

● Change the fuel filter if the fuel tank has been run

dry.

1. Park the tractor safely and securely.

2. Open the hood.

3. Turn the valve lever to the “Close” position.

4. Turn the sediment bowl locking collar

counterclockwise to unlock the sediment bowl,

then pull the sediment bowl downward to remove

from the separator body.

5. Discard fuel and sediment in the sediment bowl

and then clean the sediment bowl with diesel oil.

6. Reinstall the sediment bowl, and turn the valve

lever to the “ON” position.

7. Close the hood.

8. Turn the key to START position to crank the

engine to bleed the air from the fuel system.

(A) Valve lever

(B) Sediment bowl locking collar

(D) Bowl

! WARNING! WARNING

3014908b

(A)

(D)

(C)

(B)

14-29

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

■ Service the Air Cleaner Element

●Touching hot surfaces can lead to skin burn. If

the engine has been running, the engine and its

components will remain hot. Before servicing,

allow the engine to cool off.

IMPORTANT: Avoid damage.

●A damaged cleaner element may fail to catch dirt

and dust, and contaminants can enter the engine:

• NEVER wash the air cleaner element.

• NEVER attempt to clean the air cleaner element

by tapping against another object.

• ALWAYS replace the air cleaner element when it

is contaminated, damaged or the seal is cracked.

1. Park the tractor safely and securely.

2. Allow the engine to cool off.

3. Open the hood.

4. Release the two latches that secure the canister

cover to the air cleaner canister.

●When removing the air cleaner canister cover

or the air cleaner element, be careful not to

injure hand.

5. While holding down the electric cable, unlock the

latch hooks from the air cleaner canister and

remove the canister cover.

(A) Latch hook

(B) Air cleaner canister

(D) Air cleaner canister cover

(E) Cleaner element

6. Slightly raise the bottom of the canister.

! CAUTION

P3014927

(B)

(D)

(C)

(A)

! CAUTION

P3014928

(E)

14-30

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

7. Blow air through the element from the inside out

using 42 to 71 psi (0.29 to 0.49 MPa, 3.0 to 5.0

kgf/cm

) compressed air to remove the

particulates. Use the lowest possible air pressure

to remove the dust without damaging the

element.

8. Replace the element with a new one if the

element is damaged, excessively dirty or oily.

9. Clean inside of the air cleaner canister and

canister cover.

10.Reinstall the air cleaner element.

11.Replace the air cleaner canister cover. Make sure

that the rubber dust unloading valve points

downward.

12.For correct installation, follow the instruction

molded onto the canister cover.

13.Hook the two latch hooks onto the air cleaner

canister.

14.Push the top of the latches inward toward the

canister cover to lock the latches and secure the

canister cover.

14-31

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

■ Replace the Engine Oil Filter

●When draining away the engine oil that is still

hot, stay clear of the hot engine oil and other

components to avoid burn.

1. Completely drain the engine oil.

See “Change the Engine Oil” on page 14-27.

(A) Drain plug

2. Wipe away dirt and dust from around the engine

oil filter.

(B) Engine oil filter

●Prevent dirt and debris from contaminating engine

oil. Carefully clean the engine oil filter and the

surrounding area before removing the engine oil

filter.

3. Turn the filter counterclockwise to remove it.

4. Apply a small amount of clean engine oil onto the

gasket of the new filter.

5. Install a new replacement oil filter by turning it

clockwise until the gasket is seated against the

filter base. Then turn the filter an additional one

half turn.

6. Reinstall the drain plug. Do not over-tighten it.

7. Remove the oil fill cap.

8. Add approximately 2.5 US qt (2.4 L) of the engine

oil.

9. Reinstall the oil fill cap.

10.Start and idle the engine to check for any leaks.

11.Stop the engine. Correct any leakage before

operating the tractor.

12.Check the engine oil level and add more as

necessary.

13.Lower and close the hood.

6. Every 200 Hours

! WARNING! WARNING

(A)

P3014926

3014911b

(B)

NOTICE

14-32

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

■ Adjust the Toe-in

Poorly adjusted toe-in can cause difficulty in steering

action or abnormal sway of the steering wheel.

Measure the dimensions A, A’, B and B’ on the front

wheels, and check that the dimensional difference “A

- B” “A’ - B’” falls in a range of 0 to 0.3 in. (0 to 7 mm).

If this dimension is not met, loosen the locknuts on

the right and left tie-rod ends, and adjust the length

of threaded portions. When the toe-in falls in the

range of 0 to 0.3 in. (0 to 7 mm), secure this

adjustment by retightening the locknuts.

(D) Locknut

(Tightening torque: 44 to 51 ft•lb (59 to 69 N•m))

(E) Tie-rod

(a) Front

(b) Rear

(E)

(a)

(b)

(E)

2010682a

FRONT

P3014929

(D)

(C)

FRONT

14-33

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

■ Transmission/Hydraulic Oil

IMPORTANT: Avoid damage.

●Make sure to use Cub Cadet Hydraulic/Transmission

Fluid for transmission.

Transmission/Hydraulic Oil

■ Change the Transmission/Hydraulic Oil and Replace the Transmission/Hydraulic Oil

Filter

●When draining away the transmission/

hydraulic oil that is still hot, stay clear of the

hot transmission/hydraulic oil and other

components to avoid burn.

IMPORTANT: Avoid damage.

●NEVER remove the cap from the fill port unless

absolutely necessary. Contaminated transmission/

hydraulic oil can cause the transmission to be

damaged or fail.

●Whenever changing or replacing the transmission/

hydraulic oil and transmission/hydraulic oil filter,

always bleed the transmission/hydraulic oil in order

to avoid malfunction of transmission.

1. Run the engine for several minutes to warm up

the transmission/hydraulic oil.

2. Park the machine safely.

NOTE

●The transmission contains approximately 2.0 US

gal. (7.5 L) of oil.

3. Put a drain pan underneath the transmission

drain plug. Remove the drain plug, and allow the

oil to fully drain away.

(A) Transmission drain plug

7. Every 300 Hours

Capacities Lubricants

Approximately

2.0 US gal (7.5 L)

Cub Cadet Hydraulic/Transmission

Fluid

! WARNING! WARNING

3014923

(A)

14-34

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

4. Turn the transmission/hydraulic oil filter

counterclockwise with the filter wrench to remove.

5. Install a new transmission/hydraulic oil filter and

turn clockwise by hand. Tighten the filter with a

filter wrench to a torque of 28.9 lb•ft (4 kgf•m).

NOTE

●After hand-tightening, only tighten by 2/3 turn with

the filter wrench.

(A) Transmission/hydraulic oil filter

6. Reinstall and tighten the transmission drain plug.

7. Clean the area around the oil fill cap, then remove

the oil fill cap from the transmission housing.

8. ADD approximately 2.0 us gal (7.5L) of the

transmission/hydraulic oil.

9. Reinstall the oil fill cap.

10.Start the engine and idle it for about 40 seconds.

11.Run the engine at the high idle speed for about 40

seconds.

12.Then, run the engine at the low idle speed and

slowly step on the forward and reverse drive

pedal several times.

13.Again run the engine at the high idle speed and

slowly step on the forward and reverse drive

pedal several times.

14.Stop the engine. If any leakage is found, contact

your local Cub Cadet Yanmar dealer for technical

assistance.

15.After leaving the engine for 5 minutes or more,

check the transmission/hydraulic oil level and add

more as necessary.

3014924

(A)

14-35

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

■ Front Axle Case Oil

IMPORTANT

●Make sure to use Cub Cadet GEAR LUBE or SAE

80W-90 gear oil for front axle case oil.

Front Axle Case Oil

■ Change the Front Axle Case Oil

●When draining away the front axle case oil that

is still hot, stay clear of the hot transmission/

hydraulic oil and other components to avoid

burn.

1. Operate the tractor to warm up the front axle case

oil.

2. Park the tractor safely.

NOTE

●The front axle case contains approximately 2.6 US

qt (2.5 L) of oil.

●Be sure to change the oil in both right and left front

axles.

3. Place drain pans underneath the axle drain plugs

on both sides of the front axle.

4. Remove the axle drain plugs and allow the oil to

fully drain.

5. Make sure that the oil has fully drained. Dispose

of waste properly. Reinstall and tighten the drain

plugs.

6. Remove the dipstick located on the right side of

the front axle.

7. Add Cub Cadet GEAR LUBE or SAE 80W-90

gear oil through the fill port to the specified level.

8. Reinstall and tighten the dipstick.

9. Check the front axle case oil level again.

IMPORTANT: Avoid damage.

●Before checking the oil level, allow the oil to settle

for 1 hour so that the current oil level can be

accurately checked on the dipstick. Recheck the oil

level after operating the tractor for several hours.

10.Again, check the axle case oil level.

(A) Axle drain plugs

(B) Dipstick

8. Every 500 Hours

Capacities Lubricants

Approximately 2.6 US qt

(2.5 L)

Cub Cadet GEAR LUBE

or SAE 80W-90 gear oil

! WARNING! WARNING

(A)

3014922

(B)

14-36

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

■ Replace the Fuel Filter Element (in the Fuel/Water Separator)

1. Park the tractor safely and securely.

2. Open the hood.

3. Turn the valve lever to the “Close” position.

4. Turn the locking collar counterclockwise to unlock

the sediment bowl, then pull the sediment bowl

downward to remove from the separator body.

5. Discard fuel and sediment in the sediment bowl

and then clean the sediment bowl with diesel oil.

6. Remove the old fuel filter element from the

separator body.

7. Install a new fuel filter element to the separator

body.

8. Reinstall the sediment bowl, and turn the valve

lever to the “ON” position.

9. Close the hood.

10.Turn the key to the START position to crank the

engine to bleed the air from the fuel system.

■ Replace the Fuel Filter

●Remember that vapor from diesel fuel is

explosive and flammable.

●NEVER smoke while handling the fuel.

●Keep the fuel away from open flames or sparks.

●Before servicing, stop the engine.

●Before servicing, allow the engine to cool off.

●Work in a well-ventilated area.

●Immediately wipe away spilled fuel.

Check fuel filter, if it is clogged by debris or

contaminated by water, replace it.

1. Open the hood.

2. Remove the two bolts and remove the stay.

3. Remove the filter from the clamp.

4. Place an oil pan underneath the filter.

5. Disconnect the fuel hoses from the fuel filter.

6. Replace the new fuel filter, and plug it with fuel

hoses.

7. Discard the old filter. Install the hose to a new

filter.

8. Fit the filter in the clamp.

9. Reinstall the stay.

(A) Stay

(B) Bolts

! WARNING! WARNING

(B)

P3014930

(A)

(C)

P3014957

14-37

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

■ Coolant

●Fluids released under pressure from the

cooling system can cause severe burns.

Pressure build-up in the cooling system can,

when the radiator cap is removed, cause the

coolant to gush out explosively.

●Stop the engine and allow it to cool off.

●Do not remove the radiator cap before the

radiator and the engine are sufficiently cool

such that they can be touched with bare hands.

Carefully loosen the cap to the first stop to

allow the pressure to be completely released.

Only then, remove the cap completely.

[The following coolants are recommended]

• High Quality Permanent Type Antifreeze

(Ethylene Glycol with corrosion and rust inhibitor

chemicals)

Before using the coolant, study the instructions and

data on its container to be sure it is suitable for the

engine.

Use a conditioned coolant, or before use, add a

conditioner to the coolant.

Prepare the coolant according to the

recommendation of your local Cub Cadet Yanmar

dealer, and then pour this coolant into the radiator.

This coolant is intended not only to cold the engine

but also to protect the radiator against freezing down

to your local climate.

Follow the instructions on the antifreeze container or

contact your local Cub Cadet Yanmar dealer for

technical assistance. NEVER exceed the maximum

dilution ratio for the coolant. Exceeding the maximum

dilution ratio can jeopardize effectiveness of the

coolant.

9. Every 1000 Hours

! WARNING! WARNING

14-38

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

■ Flush the Cooling System

●ALWAYS allow radiator to cool before

removing the radiator cap. The radiator will be

hot and can cause burns. When the radiator

cap is removed, pressure build-up in the

cooling system can cause the coolant to spray

out explosively.

●ALWAYS shut the engine down and allow it to

cool.

●NEVER remove the radiator cap before the

radiator and the engine are sufficiently cool

such that they can be touched with bare hands.

●Loosen the radiator cap carefully to the first

stop, allowing excessive pressure to escape.

Only then remove the radiator cap. If the tractor

is equipped with a coolant reserve tank, add

coolant or water to the reserve tank, not to the

radiator. (See “Check the Cooling System” on

page 14-12).

1. Drain the Cooling System

1. Park the tractor safely and securely.

2. Allow the engine to cool off.

3. Open the hood.

4. Carefully open the radiator cap to the first to

release all the pressure.

(A) Radiator cap

5. Remove the two clamps on the drain hose of the

radiator.

6. Place a drain pan underneath the drain hose.

7. Point the drain hose downward and then unplug

it.

8. Allow all the coolant to drain.

9. Remove the two bolts and the hose to remove the

reserve tank. Drain coolant in the reverse tank.

10.Reinstall the reserve tank.

11.Plug the drain hose and fix it with the clamp.

(A) Drain hose clamps

(B) Drain hose

! WARNING! WARNING

P3014931

(A)

P3014932

(B)

14-39

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

2. Flush the Cooling System

1. Fill the cooling system with water and common

flushing/cooling liquid. Follow the flushing/cooling

liquid manufacture's instructions.

2. Reinstall and retighten the radiator cap.

3. Start and run the engine until it reaches the

operating temperature.

●The engine and coolant can be hot. Avoid

contact with skin to prevent severe burns.

ALWAYS wear safety glasses when draining

the cooling system.

4. Stop the engine.

5. Immediately drain the cooling system before rust

and dirt settle in it. See “Drain the Cooling

System” on page 14-38.

6. Plug the drain hose and fix it with the clamp.

(A) Drain hose

(A)

P3014932

! WARNING! WARNING

14-40

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

■ Change the Coolant

IMPORTANT: Avoid damage.

●Use of an incorrect coolant mixture can damage

the radiator.

●NEVER operate the engine with plain water.

●NEVER use an antifreeze mixture with a

concentration of more than 50 % water to coolant

mixture.

●NEVER pour the coolant or water into the radiator

while the engine is hot.

NOTE

●For adding coolant to the cooling system, use of

High Quality Permanent Type Antifreeze (Ethylene

Glycol with corrosion and rust inhibitor chemicals)

is recommended.

For the correct mixture ratio, see the manufacturer’s

directions on the coolant container.

1. Allow the radiator to cool down.

2. Fill the cooling system. The cooling system

capacity is approximately 3.4 US qt (3.2 L).

3. Reinstall and retighten the radiator cap.

4. Start and run the engine until it reaches the

operating temperature.

5. Stop the engine.

6. Check the reserve tank coolant level, and add the

coolant as necessary.

7. Lower the hood.

14-41

14. PERIODIC SERVICE

Sc2450 Operator’s Manual

■ Replace the Air Cleaner Element

For the maintenance work, see “Service the Air Cleaner Element” on page 14-29.

■ Flush the Cooling System

For the maintenance work, see “Flush the Cooling System” on page 14-38.

■ Change the Coolant

For the maintenance work, see “Change the Coolant” on page 14-40.

■ Replace the Radiator Hoses and Clamp

For the maintenance work, see “Check the Radiator Hoses and Clamps” on page 14-10.

■ Replace the Fuel Line

For the maintenance work, see “Check the Fuel Line” on page 14-13.

■ Replace the Intake Air Hose

For the maintenance work, see “Check the Intake Air Hoses and Clamps” on page 14-13.

■ Replace the Hydraulic Hoses

For the maintenance work, see “Check the Hydraulic Hoses” on page 14-20.

■ Replace Power Steering Hose

Consult your local Cub Cadet Yanmar dealer for this service.

10. Every 1 Year

11. Every 2 Years

15-1

15. SERVICE THE ELECTRICAL SYSTEM

Sc2450 Operator's Manual

15.

SERVICE THE ELECTRICAL SYSTEM

●To avoid personal injury, do as follows:

●Read “Chapter 1. SAFETY PRECAUTIONS” at the

head of this manual.

●Read the danger, warning and caution statements

on the safety-alert symbols on the tractor.

●To avoid possible poisoning from exhaust fume, do

not operate the engine in an enclosed place that

lacks adequate ventilation.

●NEVER start the engine while standing on the

ground. Be sure to start the engine only from the

operator's seat.

●Before starting any servicing work, park your

tractor on solid, level ground, engage the parking

brake securely, turn off the Power Take Off (PTO)

switch, lower the implement to the ground, set the

forward and reverse drive pedal to the NEUTRAL

position, stop the engine and from the starter key

switch.

■ Special Note for the Battery

●The battery posts, terminals and associated

accessories contain lead and lead compounds

which are known to the State of California to

cause cancer and reproductive harm. After

handling the battery, wash hands thoroughly.

1. Battery

! WARNING! WARNING

15-2

15. SERVICE THE ELECTRICAL SYSTEM

Sc2450 Operator's Manual

■ Service the Battery Safely

The battery electrolyte contains sulfuric acid,

which is poisonous and can cause serious burn:

●Wear protective goggles and gloves.

●NEVER expose skin.

●If electrolyte is accidentally swallowed,

immediately seek medical attention.

●If the electrolyte has entered eyes, immediately

flush with running water for 15-30 minutes and

seek medical attention.

●If the battery electrolyte comes into contact

with skin, immediately flush with a plenty of

water and, if necessary, seek medical attention.

Batteries may emit flammable/explosive gasses.

Use extreme caution when handling batteries.

●NEVER smoke near the battery.

●Wear protective goggles and gloves.

●NEVER allow any metal piece to contact across

the battery posts.

●When disconnecting the battery cables, first

remove the negative cable.

●When reconnecting the battery cables, connect

the negative cable last.

●Always remain aware of your environmental

responsibility.

●For environmentally appropriate disposal of

possibly hazardous materials on your tractor, such

as its engine oil, diesel fuel and hydraulic fluid,

follow the disposal guidelines of the EPA or other

relevant governmental bodies. Consult the local

authorities or waste disposal facility.

●NEVER dispose of the hazardous wastes from

your tractor inappropriately; for example by

dumping them into a sewer, on/into the ground or

into the groundwater or any waterways.

●Failure to follow these instructions may seriously

impact the environment.

! WARNING! WARNING

NOTICE

15-3

15. SERVICE THE ELECTRICAL SYSTEM

Sc2450 Operator's Manual

■ Inspect the Battery

The battery used on the tractor is a maintenance-free

design. Do not add electrolyte or recharge it. When

the engine is off, measure the voltage on the battery

across the positive and negative posts. If the reading

is 11 V or lower, replace the battery with a new one.

■ Remove and Install the Battery

(A) black/yellow negative (–) cable

(B) Negative terminal

(D) Black positive (+) cable

(E) Threaded rods

(F) Bracket

1. Remove the Battery

1. Park the tractor safely and securely.

2. Open the rear grille screen.

3. Disconnect the black/yellow negative (–) cable

from the battery.

4. Remove the nuts from threaded rods.

5. Remove the threaded rods and bracket.

6. Pull out the battery backward around 4 in. (100

mm).

7. Pull back the red positive terminal cover and

disconnect the black positive (+) cable.

8. Remove the battery.

P3014933

(A)

(C)

(D)

(B)

(E)

(F)

(E)

15-4

15. SERVICE THE ELECTRICAL SYSTEM

Sc2450 Operator's Manual

2. Install the Battery

1. Install the battery onto the tractor.

2. Connect the black positive (+) cable to the battery

and then put the red positive terminal cover on

the terminal.

3. Install the threaded rods and bracket and,

retighten the nuts. Avoid over-tightening.

4. Connect the black/yellow negative (–) cable.

5. Apply petroleum jelly to the battery terminals to

protect them against corrosion.

6. Close the rear grille screen.

■ Clean the Battery and Terminals

1. Disconnect the battery cables, black/yellow

negative (–) cable first, and remove the battery.

2. Dissolve four tablespoons of baking soda in 1

gallon of water to prepare a solution. Use this

solution to wash the battery. Be very careful not to

allow the solution to enter the battery cells.

3. Rinse the battery with water and allow it to dry.

4. Clean the terminals and battery cable ends with

wire brush to remove corrosion.

5. Apply petroleum jelly or silicone spray to the

battery terminals to protect them against

corrosion.

6. Install the battery.

7. Connect the black positive (+) cable first, then

connect the black/yellow negative (–) cable.

15-5

15. SERVICE THE ELECTRICAL SYSTEM

Sc2450 Operator's Manual

■ Use a Booster Battery

●NEVER attempt to jump-start a frozen battery.

Warm it to 60°F (16°C).

●NEVER connect the negative (–) booster cable

to the negative (–) terminal of the discharged

battery. Connect to an appropriate grounding

point other than the discharged battery.

(A) Booster battery

(B) Battery on a disabled vehicle

(D) Positive (+) post of battery on a disabled

vehicle

(E) Negative (–) post of booster battery

(F) Other end of booster cable

1. Connect the positive (+) booster cable to the

positive (+) post on the booster battery.

2. Connect the other end of positive (+) booster

cable to the positive (+) post of the battery on the

disabled vehicle.

3. Connect the negative (–) booster cable to the

negative (–) post on the booster battery.

4. Connect the other end of negative (–) booster

cable to the metal frame of the disabled vehicle.

5. Start the engine of the disabled vehicle, and run

the engine for several minutes.

6. Carefully disconnect the booster cables by

performing the booster cables connection

procedure in the reverse order (disconnect the

negative cable first, and then the positive cable).

! WARNING! WARNING

(D)

(B) (A)

(F)

(E) (C)

3013737

15-6

15. SERVICE THE ELECTRICAL SYSTEM

Sc2450 Operator's Manual

IMPORTANT: Avoid damage.

●Use of a fuse other than a correctly rated one may

cause damage to the electrical system. Replace

the blown fuse with a new fuse of the same

amperage rating.

■ Replace the Accessory Fuses

1. Park the tractor safely and securely.

2. Open the rear grille screen.

3. Grip both ends of the fuse holder cover and

remove.

4. Locate the fuses by referring to the diagram at the

right.

5. Remove the blown fuse from its socket.

6. Push the new fuse into the socket.

7. Reinstall the fuse holder cover.

8. Close the rear grille screen.

(A) Fuse holder cover

(1) PTO fuse: 5A

(2) Meter panel fuse: 5A

(3) Start relay fuse: 25A

(4) DC outlet fuse: 10A

(5) Warning light fuse: 15A

(6) Work light fuse: 10A

(7) Head light fuse: 15A

(8) Fuel pump fuse: 5A

■ Check the Alternator Fuse and the Main Fuse

1. Park the tractor safely and securely.

2. Open the hood.

3. Locate the fuses by referring to the picture at the

right.

4. Check the fuses.

IMPORTANT: Avoid damage.

●The alternator fuse and the main fuse are of slow

blow type. When any of these fuses has been

blown, contact your local Cub Cadet Yanmar

dealer.

(A) Alternator fuse: 60A

(B) Main fuse: 60A

2. Fuses

P3014934

(A)

15A

10A

15A

PTO

F.PUMP

㪪㪧㪘㪩㪜

㪈㪇㪘

㪧㪬㪣㪣㪜㪩

㪪㪧㪘㪩㪜

㪉㪌㪘

㪪㪧㪘㪩㪜

㪈㪌㪘

START

OUTLET

10A

㪪㪧㪘㪩㪜

㪌㪘

METER

25A

1A7880-65780

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

P3014949

(A)

(B)

15-7

15. SERVICE THE ELECTRICAL SYSTEM

Sc2450 Operator's Manual

■ Replace the Headlight Bulb

IMPORTANT: Avoid damage.

●NEVER touch the headlight bulbs with bare fingers,

otherwise, the bulb may fail prematurely. When

inspecting or replacing the bulb, use gloves or a

piece of cloth to handle the bulb.

1. Park the tractor safely and securely.

2. Stop the engine and remove the key from the

starter key switch.

3. Open the hood.

4. Remove the headlight cover.

5. Turn the headlight bulb socket counterclockwise

slightly to remove it from the headlight bulb

housing.

●The halogen light bulb contains compressed

gas. If the glass has been scratched or is

dropped, the bulb may shatter. Wear protective

goggles and handle the bulb carefully when

replacing it.

6. Remove the old headlight bulb from the bulb

socket.

7. Install new one into the bulb socket and fix it.

8. Turn the headlight bulb socket clockwise slightly

and fix it to the bulb housing.

9. Put on the headlight cover on the headlight bulb

housing and fix it.

10.Close the hood.

11.Check that the headlights light normally.

(A) Headlight assembly

(B) Headlight bulb

(D) Headlight cover

3. Bulb

P3014935

(A)

! WARNING! WARNING

P3014955

(B)

P3014950

(C)

(D)

15-8

15. SERVICE THE ELECTRICAL SYSTEM

Sc2450 Operator's Manual

■ Replace the Work Light Bulb

1. Park the tractor safely and securely.

2. Stop the engine and remove the key from the

starter key switch.

3. Open the hood.

4. Turn the work light socket counterclockwise

slightly to remove it from the work light housing

5. Remove the bulb from the work light socket.

6. Install a new bulb into the work light socket.

7. Turn the work light socket clockwise slightly and

fix it to the work light housing.

8. Close the hood.

9. Check that the work lights light normally.

(A) Work light assembly

(B) Work light bulb

P3014935

(A)

P3014956

(B)

P3014951

(C)

15-9

15. SERVICE THE ELECTRICAL SYSTEM

Sc2450 Operator's Manual

■ Replace the Tail Light Bulb

1. Park the tractor safely.

2. Stop the engine and remove the key from the

starter key switch.

3. Remove the two screws and lens from the

assembly.

4. Push down and rotate the bulb to remove it.

5. Push the new bulb into the socket and rotate to

lock it into position.

6. Check that the tail light lights normally.

7. Reinstall the lens.

(A) Screw

(B) Lens

■ Replace the Turn Signal/Hazard Lights Bulb

NOTE

●The turn signal/hazard lights can be serviced after

removing the front or rear lens assembly.

1. Park the tractor safely.

2. Stop the engine and remove the key from the

starter key switch.

3. Remove the lens from the light assembly.

4. Push down and rotate the bulb to remove it.

5. Push the new bulb into the socket and rotate to

lock it into position.

6. Check that the turn signal/hazard lights operate

normally.

7. Install the lens.

(A) Lens

(B) Bulb

P3014936

(A)

P3014953

(C)(B)

P3014937

(A)

P3014954

(B)

15-10

15. SERVICE THE ELECTRICAL SYSTEM

Sc2450 Operator's Manual

■ Replace the Instrument Panel Light Bulb

If any instrument panel bulb is blown, contact your local

Cub Cadet Yanmar dealer for technical assistance.

■ Adjust the Headlights

The headlights are fixed. If their adjustment is required,

contact your local Cub Cadet Yanmar dealer for technical

assistance.

4. Headlights

16-1

16. STORE THE TRACTOR

Sc2450 Operator's Manual

16. STORE THE TRACTOR

●Remember that vapor from diesel fuel is explosive and flammable.

●The exhaust from the engine contains carbon monoxide that can

lead to carbon monoxide poisoning, possibly causing serious

illness or even death. To avoid the danger of poisoning from the

exhaust gas, NEVER run the engine in a closed building that is not

positively ventilated.

●NEVER wash the tractor while the engine is running.

●Run the engine as shortly as possible when moving the tractor into

and from the place of storage.

●When fuel is in the fuel tank, NEVER store the tractor in a building

where fuel vapor can come into contact with open flame or spark.

●Before storing the tractor indoors, allow the engine to cool off.

1. Prepare the Machine for Storage

If planning to store the tractor for a long period, follow the procedure

described below.

The procedure is intended to ensure that the tractor is readily prepared for

operation when it is removed from storage.

1. Repair any worn or damaged parts. Replace the parts as necessary.

Tighten any loose bolts and nuts.

2. Repair scratched or chipped metal surfaces to prevent rusting.

3. Remove grass clippings and debris from the tractor.

4. Clean below the deck and remove grass clippings and debris from

inside the chute and bagger.

5. Remove the ballast from the tractor.

6. Wash the tractor and apply wax to the metal and plastic surfaces.

7. Run the tractor for 5 minutes to dry the belts and pulleys.

8. Apply a light coat of clean engine oil to pivots and wear points to

prevent rusting.

9. Lubricate the lube fittings.

10. Check the tire pressure. Adjust the tire pressure slightly higher than

specified.

11. Change the engine oil and run the engine for about 5 minutes to

circulate the oil throughout the entire engine block and the internal

moving parts.

12. Lower any implement to the ground. Apply grease to

the exposed areas on the hydraulic cylinder piston

rods.

1. Safe Practices for Storage

! WARNING

16-2

16. STORE THE TRACTOR

Sc2450 Operator's Manual

2. Prepare the Fuel and Engine for Storage

■ Fuel

If using stabilized fuel, fully fill the fuel tank with stabilized fuel.

NOTE

●By filling the fuel tank, the amount of air remaining in the tank decreases,

and this can help prevent deterioration of the fuel in the tank.

If stabilized fuel has not been used.

1. Park the tractor safely and securely in a well-ventilated place.

NOTE

●Assuming that this is the last time the tractor is operated for the season, use

all the fuel in the fuel tank.

2. Run the engine until all the fuel in the tank is used.

3. Turn the key to the OFF position.

IMPORTANT: Be very careful to avoid damage.

●In degraded fuel, varnish can occur and clog the fuel injector components

and adversely affect engine performance.

●Mix stabilizer into fresh fuel before filling the fuel tank.

4. Mix fresh fuel and fuel stabilizer in a separate container.

Observe the stabilizer manufacturer's instructions for mixing.

5. Fill the fuel tank with the stabilized fuel.

6. Run the engine for several minutes to allow the fuel-stabilizer mixture to be

circulated through the fuel system.

■ Engine

If the tractor is scheduled to be stored for longer than 60 days, prepare the

engine for storage.

1. Change the engine oil and filter while the engine is still warm.

2. Service the air filter if necessary.

3. Remove dust and debris from the engine air intake screen.

4. Clean the engine and engine compartment.

5. Remove the battery.

6. Clean the battery and battery posts. Check the electrolyte level.

7. Close the fuel shut-off valve.

8. Store the battery in a cool, dry, dark place. However, the temperature of

that place must not become low enough to freeze the electrolyte in battery.

9. Store the tractor in a dry, safe place. If the tractor is stored outdoors,

protect it with a waterproof cover. Jack up the tractor and place blocks

under the front and rear axles to allow the tires to be lifted off the ground.

Do not allow the tires to be exposed to direct sunlight or extremely high

temperature.

16-3

16. STORE THE TRACTOR

Sc2450 Operator's Manual

1. Check the tire pressure. If necessary, refill with compressed air.

2. Check the levels of engine oil, transmission/hydraulic oil and engine

coolant.

3. Check the battery electrolyte level.

4. Check that the battery is adequately charged.

5. Install the battery.

6. Check the fan belt tension.

7. Lubricate all the lube fittings.

8. If the tractor has a fuel shut-off valve, open it.

9. Run the engine for 5 minutes while the mower or any implement is

disengaged to allow the oil to be fully distributed throughout the entire

engine. After stopping the engine, walk around the tractor and check for

any evidence of oil or other leakage.

10. Make sure that all the shields, guards or deflectors are in place.

2. Prepare the Stored Tractor for Operation

17-1

17. TROUBLESHOOTING

Sc2450 Operator's Manual

17. TROUBLESHOOTING

The troubleshooting table given below is intended to provide a simple guide for the operator or owner. If

any fault, failure or a problem that requires repair work has occurred, contact your local Cub Cadet

Yanmar dealer for technical assistance.

1. Engine

1. Guide in Using the Troubleshooting Table

Symptom Cause Remedy

1 Engine does not

start or engine

starts, but stalls

immediately.

z Diesel fuel is not flowing or is not

flowing sufficiently to the engine.

• Check that there is sufficient fuel in the

fuel tank. Refuel as necessary.

• Check that the fuel filter is not clogged.

Replace the clogged filter.

z Air is trapped in the fuel system. • Check the fuel line for looseness.

Retighten any loose connections.

• Bleed air from the fuel system.

z Water contamination in the fuel

system.

• Remove water from the fuel tank, fuel lines

and fuel filter (replace filter as necessary).

Refill the fuel tank with diesel fuel.

z In cold weather, the engine oil viscosity

is excessively high, which causes

greater resistance. As a result, the

engine speed is lower than normal.

• Use a less viscous engine oil; Be sure to

change to a more viscous engine oil in

summer. (Consult your local Cub Cadet

Yanmar dealer for details.)

z The power of the battery is too low and

the starter fails to accelerate to a

speed sufficient to start the engine.

• Clean the battery posts and terminals,

then measure the voltage of the battery. If

the voltage is 11 V or lower, replace the

battery with a new one.

• During cold weather, it is recommended to

remove the engine from the tractor and

store it indoors. Recharge the battery (as

necessary) before installing it in the

tractor.

2 Engine starts, but

fails to run

smoothly or is not

powerful.

z Stale diesel fuel (owing to prolonged

storage).

• Replace the diesel fuel.

z Contaminated diesel fuel. • Replace the diesel fuel. Replace fuel filter

(as necessary).

z Clogged air cleaner. • Replace the air cleaner.

z The fuel shut-off valve is not in the fully

OPEN position.

• Fully open the fuel shut-off valve.

3 Engine starts

successfully, but

stops suddenly.

z No diesel fuel. • Refuel.

z The fuel shut-off valve is not in the

OPEN position.

• Open the fuel shut-off valve.

4 Blackish exhaust. z Poor diesel fuel quality. • Replace the diesel fuel and fuel filter.

z Too much engine oil. • Drain the engine oil to the specified level.

z Clogged air filter. • Clean or replace the air filter.

5 Pale bluish

exhaust.

z Faulty or defective injection nozzle. • Contact your local Cub Cadet Yanmar

dealer for technical assistance.

z Poor diesel fuel quality. • Replace the diesel fuel and fuel filter.

17-2

17. TROUBLESHOOTING

Sc2450 Operator's Manual

2. Machine

6 Engine overheats. z Insufficient engine coolant. • Add engine coolant.

• Check the radiator and the lines to and

from the radiator for leakage. If leakage is

found, contact your local Cub Cadet

Yanmar dealer for technical assistance.

z Overloaded engine. • Operate the tractor carefully and

moderately. Avoid overloading.

z Insufficiently tensioned fan belt, or

broken fan belt.

• Adjust the fan belt to the specified tension

value, or replace fan belt if broken or

damaged.

z The radiator core is blocked. • Check for dirt accumulated in the radiator

core and grille screen.

z Poor engine coolant quality. • It is possible that sludge has accumulated

on the engine water jacket. Contact your

local Cub Cadet Yanmar dealer for

technical assistance.

Symptom Cause Remedy

1 Machine vibrates

excessively.

z Engine speed is too low • Run the engine at an appropriate higher

speed.

z The Power Take Off (PTO) connecting

the tractor with the mounted implement

is not properly and securely connected.

• Disconnect the Power Take Off (PTO)

shaft, and properly reconnect it. Check if

excessive vibration reoccurs. If excessive

vibration persists, immediately stop

operation and contact your local Cub

Cadet Yanmar dealer for technical

assistance.

z Water is trapped in the fuel filter (water

sedimentor).

• Drain the fuel filter water sedimentor.

Check for water in the fuel tank, drain as

necessary.

z The engine throttle cable and linakges

have not been correctly adjusted.

• Contact your local Cub Cadet Yanmar

dealer for technical assistance.

2 Engine starts

successfully, but

the tractor fails to

operate.

z Parking brake is engaged. • Disengage the parking brake.

z Insufficient transmission/hydraulic oil,

deteriorated transmission/hydraulic oil

or clogged transmission/hydraulic oil

filter.

• Check the amount and quality of the oil.

Replace deteriorated oil. Refill as

necessary. Check the filter for clogging,

and replace the clogged filter with a new

one.

z Transmission/hydraulic oil is too cold. • Start the engine. Operate the tractor when

the engine has fully warmed up.

17-3

17. TROUBLESHOOTING

Sc2450 Operator's Manual

3. Brake

4. Steering

Symptom Cause Remedy

1 Brake does not

function correctly.

z Improperly adjusted brake pedal play. • Properly adjust the brake pedal play.

z Worn or damaged brake linkage. • Contact your local Cub Cadet Yanmar

dealer for technical assistance.

z Excessively worn brake disk. • Contact your local Cub Cadet Yanmar

dealer for technical assistance.

z Deteriorated transmission/hydraulic oil. • Replace the transmission/hydraulic oil.

z Degraded quality of transmission/

hydraulic oil.

• Replace the transmission/hydraulic oil.

Symptom Cause Remedy

1 Steering does not

function correctly.

z Uneven tire pressure. • Adjust the tire pressure to the correct

level.

z Insufficient transmission/hydraulic oil,

deteriorated transmission/hydraulic oil

or clogged transmission/hydraulic oil

filter.

• Check the amount and quality of the oil.

Replace deteriorated oil. Refill as

necessary. Check the filter for clogging,

and replace the clogged filter with a good

one.

z Transmission/hydraulic oil is too cold. • Start the engine, and warm up the

transmission/hydraulic oil.

z Insufficient lubrication of the steering

linkage.

• Lubricate steering linkage.

z Steering play is too great. • Contact your local Cub Cadet Yanmar

dealer for technical assistance.

z Bent front axle. • Contact your local Cub Cadet Yanmar

dealer for technical assistance.

18-1

18. OPTIONS

Sc2450 Operator's Manual

18. OPTIONS

Contact your local Cub Cadet Yanmar dealer for further details.

●18 × 8.5-10 Turf Tire

●26 × 12.0-12 Turf Tire

●Lower Radiator Hose Heater

●Rear Work Light

●Rear Wheel Weight

19-1

19. INDEX

Sc2450 Operator's Manual

19. INDEX

REMARKS

●The following index terms will be added to the existing Sc2400.

3-Point Hitch Control/Cutting Height

Adjustment Lever ........................................ 5-7, 10-1

4-Wheel Drive Lever .......................................... 5-10

Air Cleaner Element......................................... 14-29

Alternator.......................................................... 14-24

Alternator/Battery Charging Light....................... 5-11

Battery................................................................ 15-1

Brake Pedal.......................................................... 5-4

Coolant............................................................. 14-37

Cruise Control Lever ............................................ 5-6

Cruise Control ...................................................... 8-9

Differential Lock ................................................. 8-15

Drive Pedal (Forward/Reverse)............................ 5-5

Engine Oil Dipstick ............................................. 14-8

Engine Oil Fill Cap ............................................. 14-8

Engine Oil Filter................................................ 14-27

Engine Oil Pressure Warning Light .................... 5-11

Fan Belt............................................................ 14-24

Float ..................................................................... 5-5

Fuel ........................................................... 13-3, 14-4

Fuel Cap............................................................. 14-7

Fuel Shut-Off Valve .............................................. 7-2

Fuel Filter ......................................................... 14-36

Fuel Gauge ........................................................ 5-11

Fuel/Water Separator....................................... 14-23

Glow..................................................................... 7-8

Hazard Light....................................................... 15-9

Hazard Lights Button Switch ................................ 5-3

Headlight ......................................................... 15-10

Headlight Switch .................................................. 5-9

Hood .................................................................. 14-2

Hour Meter ......................................................... 5-11

Hydraulic Flow Control/Stop Knob.............5-10, 11-2

Hydro Static Transmission (HST)

Pressure Release Lever ..............................5-7, 8-20

Implement Control Lever ......................................5-5

Inflation Pressure................................................12-2

Instrument Panel.................................................5-11

Lift Link ...............................................................10-2

Lubricant .............................................................13-3

Maximum Weight ................................................12-3

Mid-/Rear-Power Take Off (PTO) Select Lever

...5-9, 9-3

Parking Brake .......................................................7-5

Parking Brake Lever .............................................5-4

Power Steering ...................................................8-24

Power Take Off (PTO) ..........................................9-1

Power Take Off (PTO) switch ........................5-8, 7-6

Range Gear Lever ................................................5-8

Retractable Seat Belt............................................7-4

Reverse-Override-Switch...............................5-8, 9-2

Roll-Over Protective Structure (ROPS) .........1-8, 8-3

Seat Adjustment Lever .........................................7-2

Seat Safety Switch............................................14-15

Slow Moving Vehicle (SMV) Emblem ........8-16, 8-18

Starter Key Switch ................................................5-3

Sway Link ...........................................................10-2

Tachometer.........................................................5-11

Tail Light ......................................................5-9, 15-9

Throttle Control Lever ...........................................5-4

Top Link ..............................................................10-2

Top Link Retainer ...............................................10-1

Transmission/hydraulic Oil................................14-33

Turn Signal Switch................................................5-9

Wheel Bolt Tightening Torque ............................12-2

Cub Cadet 54AFG4RV727 /Yanmar Compact Tractor Model

Product's Documents

User Manual: Operator: SC2450

Specifications

Cub Cadet 54AFG4RV727 Questions and Answers