BAUMR-AG MOWPSHBMRB16E Petrol Lawn Mower 139cc 16" 4 Stroke User Manual

E&OE ©2 Bäumr-AG

Note: appearance of some parts may vary

User Manual

[Revision 16.0]

READ THIS MANUAL CAREFULLY BEFORE USE – FAILURE TO DO SO MAY RESULT IN INJURY, PROPERTY DAMAGE AND

MAY VOID WARRANTY. • KEEP THIS MANUAL FOR FUTURE REFERENCE. • Products covered by this manual may vary in

appearance, assembly, inclusions, specifications, description, and packaging.

The product is NOT supplied with engine oil, although traces of oil from the manufacturing process may be present. It is

essential to add adequate engine oil of the correct type to the engine before use. Failure to add engine oil will void the product

warranty.

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Safety

Safety messages are designed to alert you to possible dangers or hazards that could cause death, injury or

equipment or property damage if not understood or followed. Safety messages have the following symbols:

You WILL be KILLED or

SERIOUSLY INJURED if you

do not follow instructions.

You CAN be KILLED or

SERIOUSLY INJURED if you

do not follow instructions.

You CAN be INJURED if you

do not follow instructions or

equipment damage may occur.

It is vital that you read and understand

this user manual before using the product,

including safety warnings, and any

assembly and operating instructions.

Keep the manual for future reference.

Safety precautions and recommendations

detailed here must be fully understood

and followed to reduce the risk of injury,

fire, explosion, electrical hazard, and/or

property damage.

Safety information presented here is

generic in nature – some advice may not

be applicable to every product. The term

"equipment" refers to the product, be it

electrical mains powered, battery powered

or combustion engine powered.

• Before Use - If you are not familiar with

the safe operation/handling of the

equipment, or are in any way unsure of

any aspect of suitability or correct use

for your application, you should

complete training conducted by a

person or organization qualified in safe

use and operation of this equipment,

including fuel/electrical handling and

safety.

• Do NOT operate the equipment in

flammable or explosive environments,

such as in the presence of flammable

liquids, gases or dust. The equipment

may create sparks or heat that may

ignite flammable substances.

• Keep clear of moving parts.

• Equipment may be a potential source of

electric shock or injury if misused.

• Do NOT operate the equipment if it is

damaged, malfunctioning or is in an

excessively worn state.

• Do NOT allow others to use the

equipment unless they have read this

manual and are adequately trained.

• Keep packaging away from children -

risk of suffocation! Operators must use

the equipment correctly. When using

the equipment, consider conditions and

pay due care to persons and property.

General Work Area Safety

• Work areas should be clean and well it.

• Do not operate the equipment if

bystanders, animals etc are within

operating range of the equipment or the

general work area.

• If devices are provided for connecting

dust extraction / collection facilities,

ensure these are connected and used

properly. Dust collection can reduce

dust-related hazards.

General Personal Safety

• Wear appropriate protective equipment

when operating, servicing, or when in

the operating area of the equipment to

help protect from eye and ear injury,

poisoning, burns, cutting and crush

injuries. Protective equipment such as

safety goggles, respirators, non-slip

safety footwear, hard hat, hearing

protection etc should be used for

appropriate equipment / conditions.

Other people nearby should also wear

appropriate personal protective

equipment. Do not wear loose clothing

or jewellery, which can be caught in

moving parts. Keep hair and clothing

away from the equipment.

• Stay alert and use common sense

when operating the equipment. Do not

over-reach. Always maintain secure

footing and balance.

• Do not use the equipment if tired or

under the influence of drugs, alcohol or

medication.

• This equipment is not intended for use

by persons with reduced physical,

sensory or mental capabilities.

General Fuel Safety

• Petrol/fuel/gasoline is extremely

flammable – keep clear of naked flames

or other ignition sources.

• Do not spill fuel. If you spill fuel, wipe it

off the equipment immediately – if fuel

gets on your clothing, change clothing.

• Do NOT smoke near fuel or when

refuelling.

• Always shut off the engine before

refuelling.

• Do NOT refuel a hot engine.

• Open the fuel cap carefully to allow any

pressure build-up in the tank to release

slowly.

• Always refuel in well ventilated areas.

• Always check for fuel leakage. If fuel

leakage is found, do not start or run the

engine until all leaks are fixed.

General Carbon-Monoxide Safety

• Using a combustion engine indoors

CAN KILL IN MINUTES. Engine

exhaust contains carbon-monoxide – a

poison you cannot smell or see.

• Use combustion engines OUTSIDE

only, and far away from windows, doors

and vents.

General Equipment Use and Care

• The equipment is designed for

domestic use only.

• Handle the equipment safely and

carefully.

• Before use, inspect the equipment for

misalignment or binding of moving

parts, loose components, damage or

any other condition that may affect its

operation. If damaged, have the

equipment repaired by an authorised

service centre or technician before use.

• Prevent unintentional starting of the

equipment - ensure equipment and

power switches are in the OFF position

before connecting or moving

equipment. Do not carry equipment

with hands or fingers touching any

controls. Remove any tools or other

items that are not a part of the

equipment from it before starting or

switching on.

• Do not force the equipment. Use the

correct equipment for your application.

Equipment will perform better and be

safer when used within its design and

usage parameters.

• Use the equipment and accessories

etc. in accordance with these

instructions, considering working

conditions and the work to be

performed. Using the equipment for

operations different from those

intended could result in hazardous

situations.

• Always keep equipment components

(engines, hoses, handles, controls,

frames, housings, guards etc) and

accessories (cutting tools, nozzles, bits

etc) properly maintained. Keep the

equipment clean and, where

applicable, properly lubricated.

• Store the equipment out of reach of

children or untrained persons. To avoid

burns or fire hazards, let the equipment

cool completely before transporting or

storing. Never place or store the

equipment near flammable materials,

combustible gases or liquids etc.

• The equipment is not weather-proof,

and should not be stored in direct

sunlight, at high ambient temperatures

or locations that are damp or humid.

• Do not clean equipment with solvents,

flammable liquids or harsh abrasives.

• For specific equipment safety use and

care, see Equipment Safety.

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General Electrical Safety

• Inspect electrical equipment, extension

cords, power bars, and electrical fittings

for damage or wear before each use.

Repair or replace damaged equipment

immediately.

• Ensure all power sources conform to

equipment voltage requirements and

are disconnected before connecting or

disconnecting equipment.

• When wiring electrically powered

equipment, follow all electrical and

safety codes.

• Always use a Residual Current Device

(RCD) (GFCI) / Earth Leakage Circuit

Breaker / Safety Switch when operating

this item (electrical items only).

• High voltage / high current power lines

may be present. Use extreme caution

to avoid contact or interference with

power lines. Electrical shock can be

fatal.

General Electrical Safety

• Electrically grounded equipment must

have an approved cord and plug and be

connected to a grounded electrical

outlet.

• Do NOT bypass the ON/OFF switch

and operate equipment by connecting

and disconnecting the electrical cord.

• Do NOT use equipment that has

exposed wiring, damaged switches,

covers or guards.

• Do NOT use electrical equipment in wet

conditions or in damp locations.

• Do NOT use electrical cords to lift,

move or carry equipment.

• Do NOT coil or knot electrical cords,

and ensure electrical cords are not trip

hazards.

General Service Information

• The equipment must be serviced or

repaired at authorised service centres

by qualified personnel only.

• Replacement parts must be original

equipment manufacturer (OEM) to

ensure equipment safety is maintained.

• Do NOT attempt any maintenance or

repair work not described in this

manual.

• After use, the equipment and

components may still be hot – allow the

equipment to cool and disconnect

spark plugs and/or electrical power

sources and/or batteries from it before

making adjustments, changing

accessories or performing repair or

maintenance.

• Do NOT make adjustments while the

equipment is running.

• Perform service related activities in

suitable conditions, such as a

workshop.

• Replace worn, damaged or missing

warning/safety labels immediately.

General Conditions of Use

• This machine is to be used exclusively for cutting natural grass. Never use the mower for other purposes. Any other utilisation can

involve danger for your safety and can involve damage to the mower.

• Persons under 16 years of age and persons who are not familiar with the user instructions must not use the mower.

• The user is responsible of the safety of other people in the working area. Keep children and domestic animals at a safe distance while

the mower is in use.

• Before mowing, remove all foreign object from the lawn which may be thrown by the machine, stay alert for any foreign objects which

may have been missed.

Usage Safety Instructions

• Check that all nuts, bolts and screws are well tightened.

• Before mowing place the grass catcher in its position.

• Before mowing make sure that the blade and the blade fixing screw are securely fastened. When cutting edges require resharpening,

this must be done evenly on both sides so as to prevent any imbalance. If the blade is damaged, it must be replace.

• When mowing always wear a long trousers and strong footwear.

• Do not run the engine in an enclosed and/or poorly ventilated area, where gas of the engine contains carbon monoxide, which are

dangerous for your health.

• Work only when there is sufficient light.

• Do not use the lawnmower when it is raining or when the grass is wet.

• Particular precautions must be taken while mowing on slopes or downing stretches. Mow across the face of slopes, never down or up.

• Turn off the engine if you must leave the lawnmower unattended, displace the lawnmower or incline it.

• Never lift the rear of the mower while starting the engine and never place your hands and feet underneath the deck or into the rear

discharge chute while the engine is running.

• Never change in any way the rated speed of the engine.

• On the self-propelled mowers, disconnect the self-propelled system before starting the engine.

• Never lift or carry the mower while the engine is running.

• Stop the engine and remove the spark plug cover in these cases:

• Before any operation under the deck or the grass rear discharge chute.

• Before any maintenance, repairing or checking operations.

• Before carrying, lifting or removing the mower.

• If you leave the mower unattended or changing the cutting height.

• To remove and emptying the grass catcher.

• After hitting a foreign object, stop the engine and check thoroughly the mower in order to see if it is damage. Bring the mower in a

agreed service station to do the repairing if necessary. WARNING: Blades are still in motion for a few seconds after stopping

the engine.

• If the mower vibrates in an abnormal way, find the reasons why, and take your mower to an agreed service station.

• Check regularly that bolts, nuts and screw are secularly tightening for a safe use of the mower.

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• WARNING:GASOLINE IS HIGHLY INFLAMMABLE.

• Keep gasoline in a jerry can specially made for this purpose.

• Fill up the tank with a funnel, do the operation outside. Do not smoke. Do not use mobile phone.

• Fill up with gasoline and oil before staring the engine. Never open the cap of the fuel tank to add gasoline while the engine is

running or still hot.

• Do not start the engine if there is some gasoline spread around, take the mower away from the one where gasoline have been split

and avoid any contact from a hot source as long as the split gasoline is completely evaporated.

• Close the fuel tank cap tightly.

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Safety Symbols

The product may have safety warning labels attached to it, explained below. Understand the symbols on

your product and their meanings. If any stickers become unreadable, unattached etc, replace them.

Flammable Material Hazard

Flammable liquids, gases or

substances etc may present.

Avoid ignition sources and

open flames. Danger of fire.

Read User Manual

Read and fully understand

product safety warnings,

operation, procedures etc

before using the product.

Use Hand Protection

Wear appropriate hand

protection and take due care

as the product or use of the

product may present hand

hazards.

Carbon-Monoxide Hazard

Do not use the product in

confined areas or without

adequate ventilation. Carbon-

monoxide poisoning can be

fatal.

Electrocution / Electrical

Shock Hazard

High voltage or high current

electricity may be present or

required by the product. Take

due care when handling

electrical products, cables,

plugs and leads. Electrical

shock can be fatal.

Toxic Fumes hazard

Using the product or by-

products from use may

produce fumes, smoke or

particles that could be harmful

if inhaled. Wear appropriate

breathing protection and have

adequate ventilation.

Explosive Material Hazard

Combustible liquids, gases or

substances etc may be

present. Avoid ignition sources

and open flames. Danger of

explosion.

Cutting / Amputation Hazard

The product may have blades,

edges or mechanical devices

that can cause severe cut

injury to fingers, limbs etc.

Take due care when handling

and using the product.

Crush Hazard

The product may have blades,

edges or mechanical devices

that can cause severe crush

injury to fingers, limbs etc.

Take due care when handling

and using the product.

Single Operator Only

The product must be operated

by a single person only. More

than one person operating the

product may introduce

additional hazards.

Use Face Protection

Wear appropriate full-face

protection and take due care

as the product or use of the

product may present face and

eye hazards.

Use Foot Protection

Wear appropriate foot

protection and take due care

as the product or use of the

product may present foot

hazards.

Use Eye / Ear / Head

Protection

Wear appropriate eye and / or

ear and / or head protection

and take due care as the

product or use of the product

may present eye, hearing and

head hazards.

Running Hazard

Do not run on or near the

product as doing so may

present a fall hazard.

Diving Hazard

Do not dive into the product as

doing so may present a neck /

head injury hazard.

Adult Supervision Required

Always supervise children and

other users of a product to

prevent drowning or injury.

Skin Penetration / Puncture

Hazard

The product may produce

pressure, emit liquids or

objects that can cause severe

injury to fingers, limbs, blood

etc. Take due care when

handling and using the

product.

Hot Surface Hazard

Be aware that the product may

produce high temperatures

and hot surfaces that can

cause burn injuries.

Flying Debris Hazard

Be aware that the product or

use of the product may

present hazards produced by

flying debris. Wear appropriate

clothing and protectiove

devices.

Moving Parts Hazard

Be aware that the product

contains or uses mechanical

devices that move or rotate.

Always wait for moving parts

to stop fully before handling

the product, adjusting,

maintenence etc.

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Carbon-Monoxide Hazard

Do not use the product in

confined areas or without

adequate ventilation. Carbon-

monoxide poisoning can be

fatal.

Pull Hazard

Be aware that the product

contains or uses mechanical

devices that can pull in objects

and can cause severe injury to

fingers, limbs etc. Take due

care when handling and using

the product.

Slope / Fall Injury Hazard

Be aware that using the

product on sloping surfaces or

in slippery conditions may

present additional dangers

from falls and contact with

blades, moving parts, hot

surfaces etc.

"Slam Dunk" Warning

Do NOT attempt "slam dunk"

maneouvres as this may result

in severe injury due to falling,

product breakage or collapse

etc.

Electrocution / Electrical

Shock Hazard - Outdoor

High voltage or high current

electricity may be present or

required by the product. Do

NOT use in rain, damp or wet

conditions. Electrical shock

can be fatal.

Electrocution / Electrical

Shock Hazard - Disconnect

High voltage or high current

electricity may be present or

required by the product.

Always disconnect the product

from the electrical supply

before handling the product,

adjusting, maintenence etc.

Power Line Electrocution

Hazard

High voltage / high current

power lines may be present.

Use extreme caution to avoid

contact or interference with

power lines. Electrical shock

can be fatal.

"Kick-Back" Hazard

High level of "kick-back"

hazard that can cause the

machine to suddenly rotate

towards operator. Kick-back

injury can be fatal.

Winch Operator Position

Hazard

Do NOT stand between winch

and load. Do NOT use winch

to move people.

Winch Lift Hazard

Do NOT LIFT load vertically.

Use machine to PULL only.

Cable Hazard

Ensure that load bearing cable

is not kinked or knotted.

Winch Cable Hazard

Ensure that there is a

minimum number of cable

coils on winching mechanism.

Winch Hook Hazard

Carry hook to load – do NOT

throw or run.

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Equipment Safety

Lawn mowers are high-speed, fast-cutting equipment with exposed blades that can cause

serious or fatal injury if not used correctly or without taking proper safety precautions. It is

extremely important that you read and fully understand the information in this section and all other

safety warnings / recommendations and usage instructions before using the equipment.

Operator

• The equipment is designed for domestic use only.

• If you are untrained in the use of a petrol powered lawn mower, it is highly recommended that you be

trained/instructed by a suitably qualified or experienced user before using the machine.

• Fully understand how to safely operate the machine and the various attachments. See Operation.

• You must be in good physical condition to use a lawn mower. NEVER operate the machine when tired,

or under the influence of any substance (medication, alcohol, drugs etc) that may impair your judgement,

alertness, physical strength, vision or dexterity.

• Maintain sure-footing and balance always when using or handling the machine and have full awareness

of your surroundings and any possible hazards.

• Do not start self-propelled models (where applicable) with the drive mechanism engaged.

• Use caution when reversing or pulling the equipment towards you, and changing direction.

• After stopping the engine, always allow all moving components (blades etc) to stop moving before

moving, lifting etc.

• Stop the engine if the equipment requires tilting or moving over non-grass surfaces.

• Prolonged use may lead to health complications, such as carpal tunnel syndrome, due to vibration. To

help reduce the possibility of such conditions, wear gloves, take breaks frequently, keep fingers and

hands warm, and maintain the equipment for optimal operation and minimal vibration. It is recommended

to seek medical advice if you feel numbness or burning sensations in fingers/hands.

Clothing and Protective Equipment – All Operators and Assistants

• Wear approved safety goggles, or safety glasses with adequate top and side protection. In addition to

eye protection, wearing a full-face shield is highly recommended.

• Wear suitable hearing protection.

• Wear approved heavy-duty safety boots, with steel toe-caps and non-slip soles.

Work Area Safety

• Check the work area before mowing and remove any objects (stones etc) that may be thrown by the

mower or may otherwise damage it.

• Ensure that any person other than the operator and any assistants is kept a minimum 10m (30') away

from where the equipment is being used or where there is any possibility of ejected debris etc. Be aware

of any property that may be affected by ejected debris etc.

• Be aware of fire risks resulting from machine use. Ensure that the machine exhaust and spark arrestor (if

equipped) is well maintained and that engine is tuned correctly.

• Refuel outdoors only. Avoid fuel spillage. Start the machine at least 3m (10') away from the fuelling

location.

Operational Safety

• Do NOT use the machine if the throttle or any safety guard or mechanism is not installed or is not

operating correctly – have the machine inspected and repaired at an authorised service centre before

using it again.

• Fully understand how to safely operate the machine and the various attachments. See Operation.

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• Always hold the machine firmly with both hands during operation. Always use the machine handles.

• Avoid cutting wet or very tall grass. If grass is tall, mow in several passes, each time reducing the cut

height.

• Do not use the equipment for purposes it is not designed for, such as shredding leaves or wood

chipping.

• Avoid overly steep slopes when mowing and, when mowing on an incline, mow across the face of the

incline, not up and down it.

Transportation Safety

• Always STOP the engine and ensure all cutting devices have fully stopped before moving the machine,

transporting or working on it (refuelling, adjusting etc).

• When transporting the machine in a vehicle, ensure the engine is OFF. Secure the machine in an upright

position to prevent tip-over, machine damage or fuel spills.

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Table of Contents

Safety ........................................................................................................................................ 2

Safety Symbols....................................................................................................................................... 5

Equipment Safety ..................................................................................................................... 7

Parts Identification.................................................................................................................. 11

Parts List ................................................................................................................................. 12

Before Use Checklist .............................................................................................................. 13

Assembly .............................................................................................................................................. 13

Grass Catcher ................................................................................................................................ 13

Handles .......................................................................................................................................... 13

Routing the Throttle and Choke Lever Cables ................................................................................. 14

Engine Oil ............................................................................................................................................. 15

Air Filter ................................................................................................................................................ 16

Fuel ...................................................................................................................................................... 16

Priming the Fuel System................................................................................................................. 16

Spark Plug ............................................................................................................................................ 16

Engine Starting and Stopping ................................................................................................ 17

Starting the Engine .............................................................................................................................. 17

Stopping the Engine ............................................................................................................................. 18

Environmental Considerations .............................................................................................................. 18

Operation ................................................................................................................................ 19

Using the Throttle ................................................................................................................................. 19

Engine Safety Bar .......................................................................................................................... 19

Adjusting Cutting Height ....................................................................................................................... 20

Using the Grass Catcher ....................................................................................................................... 20

Using the Mulching Attachment ............................................................................................................. 20

Emptying the Grass Catcher ................................................................................................................. 21

Using the Side Discharge Attachment ................................................................................................... 22

Using the Self-Propel Function.............................................................................................................. 22

Using the Deck Wash Function ............................................................................................................. 22

Mowing Guidelines ............................................................................................................................... 23

Maintenance............................................................................................................................ 25

Maintenance Schedule – Petrol Engine / Machine ................................................................................. 26

Engine Oil ............................................................................................................................................. 27

Air Filter ................................................................................................................................................ 28

Inspection and Cleaning ................................................................................................................. 28

Removal/Installation ....................................................................................................................... 28

Spark Plug ............................................................................................................................................ 29

Cleaning and Gap Checking ........................................................................................................... 29

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Removal/Installation ....................................................................................................................... 29

Cutting Blades ...................................................................................................................................... 30

Sharpening ..................................................................................................................................... 30

Removal/Installation ....................................................................................................................... 30

Cleaning Guidelines.............................................................................................................................. 31

Cleaning the Drive Belt ......................................................................................................................... 31

Transportation and Storage.................................................................................................... 32

Troubleshooting ..................................................................................................................... 33

Specifications ......................................................................................................................... 37

Engine Service and Maintenance Record ............................................................................... 38

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Parts Identification

Lawn mowers come with all parts required for normal domestic use. A basic toolkit may also be included. It is

strongly recommended that you familiarise yourself with all major components of the machine before using it

or performing any maintenance tasks.

No. Name

1 Upper handle

2 ON/OFF switch

3 Lower handle

4 Engine/Motor

5 Primer bulb

6 Wheels

7 Deck

8 Grass catcher

5

8

7

6

4

3

2

1

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Parts List

Spare parts available for purchase, scan QR codes below:

QR Code SKU

MOWPSHBMRA16E

MOWPSHBMRB16E

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Before Use Checklist

Ensure that you carry out all procedures below before starting the engine or

operating the equipment. All procedures described are generic in nature and slight

variations between different models may exist. Failure to follow the checklist and carry out the

procedures correctly may result in making the product warranty void. The product is NOT supplied

with engine oil, although traces of oil from the manufacturing process may be present. It is essential

to add adequate engine oil of the correct type to the engine before use – see Engine Oil. Failure to

add engine oil will void the product warranty.

Please note: Before using the mower, you must apply air filter oil to the foam air filter element. This

prevents dust ingress into the motor, thus preventing potential engine damage or failure. This should

also be done after cleaning the air filter.

Assembly

Grass Catcher

1. Put the metallic frame inside the grass catcher (Fig. A).

2. Secure the bag on the metallic frame (Fig. A).

3. Pull up the deflector and connect the grass catcher on it (Fig. B).

Handles

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Routing the Throttle and Choke Lever Cables

The images below show how to correctly route the cables. They must be routed on the inside of the handles

if you intend on regularly folding them for storage. If routed underneath the handles or in any other way than

shown, you will risk pinching and damaging the cables.

VIDEO TUTORIAL: FOLDING THE HANDLES FOR STORAGE

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Engine Oil

The product is NOT supplied with engine oil, although traces of oil from the

manufacturing process may be present. It is essential to add adequate engine oil of

the correct type to the engine before use – see Engine Oil. Failure to add engine oil will void the

product warranty.

Four-stroke engines require engine oil in the crankcase for lubrication of internal components. Severe or

irreparable damage may occur if the engine is allowed to run without engine oil. The engine oil level requires

regular maintenance. Check the engine oil level and ensure that the oil level is at or just under the maximum

level indicator.

Always check the engine oil level before starting the engine. See Engine Oil.

To Add Engine Oil

Step 1: Locate the oil fill cap on the crankcase to start. Fill cap locations

vary, depending on the make and model of your engine.

Step 2: Clean the Crankcase: To prevent dirt and debris from falling into

the crankcase, use a clean cloth to wipe the area clean before removing

the cap.

Step 3: Inspect the Oil Dipstick and wipe it with a clean cloth.

•

To ensure an accurate reading, reinsert the dipstick completely. If the dipstick

cap is a screw-in type, ensure an accurate reading by screwing in all the way

before removing it to check the level.

•

Then, remove it again and check the oil level.

Oil should be filled to the H marked on the dipstick.

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Step 4: Never fill over the H (full) mark on the dipstick.

Air Filter

The air filter is used to prevent dirt and other particles from possibly entering the engine and causing internal

damage to it. The air filter requires regular maintenance.

Always check the air filter before starting the engine. See Air Filter.

Fuel

Petrol/fuel/gasoline is extremely flammable – keep clear of naked flames or other

ignition sources. • The engine must be OFF and cool before refuelling.

Adequately fill the fuel tank with the correct fuel type.

• Use non-ethanol unleaded petrol (higher RON values will provide best engine performance). Do not use

old or contaminated fuel.

To fill or top up fuel:

1. Place the machine in an upright position on a flat and level surface.

2. Clean the machine around the fuel filler so that no dirt or other material enters the engine when the cap

is removed.

3. Remove (rotate left) the fuel filler cap.

4. Using a funnel, carefully fill the tank with fuel. Do not fill above the top of the strainer (if equipped) or

otherwise overfill the tank.

5. When finished, re-install (rotate right) the fuel filler cap until firm. Wipe away any residual fuel from the

machine. If fuel has been spilt, move the machine away from the spillage before starting the engine.

Priming the Fuel System

For engines equipped with a fuel primer, it may be necessary to "prime" the

fuel system before attempting to start the engine. This means removing any

air from the fuel line and filling the carburettor with fuel. To prime:

1. Fill the fuel tank with fuel.

2. Locate the fuel primer (A).

3. Press the primer bulb 3 – 4 times. DO NOT EXCEED FOUR PRESSES.

4. Start the engine.

Spark Plug

The spark plug may come disconnected from the spark plug lead. If this is the case, place the electrical lead

over the spark plug terminal and push it down so that it connects firmly with the terminal. See Spark Plug.

A

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Engine Starting and Stopping

Before starting the engine, ensure that you have followed all procedures described

in the Before Use Checklist. The product is NOT supplied with engine oil, although

traces of oil from the manufacturing process may be present. It is essential to add adequate engine

oil of the correct type to the engine before use – see Engine Oil. Failure to add engine oil will void the

product warranty.

Different models may feature variations in design; for example, some have different

engine types etc. There are currently two major variations in how the engine speed is

controlled:

• Manual – This is the more traditional style, using a throttle lever, where the position of

the lever determines the engine speed [just like the accelerator on a car]. Manual

throttle engines generally have a choke setting on the throttle that is used for starting

the engine when it is cold.

• Automatic – These engines have a

system that adjusts the throttle

automatically based on the current engine

load. For example, when the grass being

cut is thick etc, the throttle opens up to

maintain engine speed. Engines with an

automatic throttle generally do not have a

choke setting on the throttle, but rather

just a "RUN" or "ON" position.

Major engine controls are identified on the machine by stickers or other

markings. The following procedures and images are typical – the

position or appearance of controls etc may vary.

Starting the Engine

1. PRIME – If necessary, "prime" the fuel system.

2. CHOKE – If the machine is equipped with a "CHOKE" or "COLD" or "COLD START" throttle setting, and

the engine is cold, place the throttle in that position. If the engine is warm or the ambient temperature is

high, place the throttle somewhere in the "RUN" region [generally, just off the "STOP" position is good].

If the machine has no choke, place the throttle in the "START" or "RUN" position.

3. IGNITION – If the machine has an engine ON/OFF switch or key switch, place it in the "ON" ("I")

position. Note that some models may be wired so that "O" is the "ON" position. For key switches, the

"OFF" position allows the key to be removed from the switch. The "ON"

position is reached when the key is rotated from the "OFF" position.

4. START – Slowly pull out the starter cord (A) until you feel it engage with

the engine, then pull it out rapidly. The engine should start. Allow the

starter cord to rewind slowly – do not let it "snap" back.

If the machine is equipped with electric start, press the "START" or

"POWER" button or turn the key switch to the "start" position to use the

electric start. Typically, electric start engines can also be pull started.

Note: If the machine features an "engine safety bar", it must be engaged in order to start the engine

and for it to remain running. • Many models feature an extended length starter cord that hooks to the

mower handle and allows the engine to be started from a normal standing position behind the

mower.

5. WARM-UP and THROTTLE – It is good practice to allow the engine to warm-up and run smoothly

before using the machine. For manual throttles, set the desired engine speed once the engine is warm.

If the engine does not start, repeat step 4. If the engine fails to start after several attempts, refer to

Troubleshooting.

Typical Manual

Throttle

Typical Automatic

Throttle

Typical Engine

ON/OFF Switch

A

Video Tutorial:

Starting 4-Stroke Engines

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Stopping the Engine

• Place the throttle control in the "STOP" or "OFF" position, or, if equipped, release the engine safety bar.

• If equipped, place the engine ON/OFF switch or key switch in the "OFF" position.

Environmental Considerations

Altitude – If the engine is being used in altitudes at or above 1500m (approximately 5000’), adjustments to

the carburettor may be required. This is because there is less oxygen in the air as altitude increases, which

effectively "enriches" the ratio of fuel to air going into the engine and the higher the altitude, the richer the

fuel mixture becomes. If the engine is being permanently operated at high altitude, it is recommended to

have an authorized service centre make the necessary carburettor adjustments. If the engine is used

occasionally at altitude (not extreme altitudes), no adjustments should be required, however, a slight

decrease in engine performance can be expected.

Temperature – If the engine is being used in extremely cold or

hot environments; for example, desert or snow conditions, the

type of engine oil may need to be changed to suit environmental

temperatures. Oil thickens as the temperature decreases and

thins as temperature increases, which means that if the engine

oil is not suited to the temperature its ability to properly lubricate

the engine may be affected. Use the following chart to determine

the correct engine oil:

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Operation

Lawn mowers are high-speed, fast-cutting equipment with exposed blades that can

cause serious or fatal injury if not used correctly or without taking proper safety

precautions. It is extremely important that you read and fully understand the information in this

section and all other safety warnings / recommendations and usage instructions before using the

equipment. • Always wear suitable protective clothing and equipment when using the machine. •

Inspect the machine before each use and check for wear or damage. If the machine is damaged, have

it inspected and repaired at an authorized service centre before using it again. • If you experience

excessive vibration from the mower during operation, this is an indication of wear or damage. It is

recommended to have it inspected and repaired at an authorized service centre before using it again.

• Be aware that once the engine is running, the cutting blades will be rotating and parts of the

machine may be extremely hot. • Ensure that the area to be mowed is free of objects that may get

caught in the mower or be thrown by it (stones, branches etc).

When the engine is idling (slowest continuous running speed), the cutting action is minimal. As engine speed

increases, the cutting action becomes more efficient. Note the following recommendations:

• Operate the engine at a sufficient speed to provide the desired cutting action. This may vary on the type

of grass, grass height and density etc.

• After use, it is recommended to clean the mower of excessive grass cuttings, dirt etc. Some models

feature a "deck wash", which can be used to simplify cleaning the underside of the mower deck.

The lawn mower may have additional features to "just" cutting grass. For example, mulching, side discharge

chute etc.

Using the Throttle

Once the engine is started, the machine can be used. For manual throttle machines, you adjust engine

speed manually; for example, when cutting thicker or longer grass, increase engine speed. Push or pull the

throttle within the range between the "START" and "STOP" positions to reach the required engine speed.

For machines that have automatic throttle control, just leave the throttle in the "START" position.

When you are pushing the mower from one area to another, but not cutting, you can "idle" the engine [run it

slow, but not stop]. For manual throttle machines, place the throttle close to the "STOP" position. For

automatic throttle machines, pull the throttle toward you approximately mid-way.

Engine Safety Bar

Some models may have an "engine safety bar" (A) [also known

as a "brake bar" or "bail"] that must be engaged in order for the

engine to start and run. When the bar is released, the engine

automatically stops. This is a safety feature to help ensure that

the mower operator is behind the mower while the engine is

running.

To start and run the engine, hold the engine safety bar against

the handle (B). Note the safety bar may be o either side of the

handle.

A

B

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Adjusting Cutting Height

WARNING: Stop the engine and unplug the spark plug before any repairs or maintenance operations.

To adjust the cutting height, the wheels can be removed and adjusted manually to one of three settings. Set

each wheel to the same height to ensure an even cut

Using the Grass Catcher

Note: Ensure that the mulching attachment (if equipped) is not installed when using the catcher.

When you want to catch the grass cuttings for disposal, use the grass catcher. The grass catcher hooks to

the rear of the mower, under the rear guard. To attach and detach it:

1. Lift the bottom edge of the rear guard (A) sufficiently to allow the catcher to pass underneath it and hold

it in this position.

2. Insert the catcher (B), with open end toward the mower, and hook the catcher fingers (C) onto the

mounting points (D), then lower the rear guard so it rests on the top of the grass catcher.

To remove the grass catcher, lift the bottom edge of the rear guard, then lift the grass catcher to unhook it

from the mower. Once unhooked, pull the grass catcher out and lower the rear guard.

Using the Mulching Attachment

Some models may feature a "mulching" attachment. Mulching is to re-circulate the cut the grass through the

blades so that is very finely "chopped" and can be left on the cut grass as a "grass feed". When mulching,

the grass catcher is not required. To install the mulching attachment:

B

C

D

A

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1. Remove the grass catcher, if installed. Lift

up and hold the rear guard (A).

2. Insert the mulching attachment (B), with

the top angled forward slightly so that the

protrusions on the bottom of the

attachment enter the slots in the mower

deck. Pull the top of the attachment back

slightly so it is correctly fitted, then lower

the rear guard.

To remove the mulching attachment, lift the rear guard, unhook the mulching attachment from the deck and

pull it out, then lower the rear guard.

Emptying the Grass Catcher

A lawn mower generates significant airflow when it moves the grass into the catcher. The catcher is fitted

with a full indicator flap, which stays up if there is space inside. When the space inside the catcher is filled

with grass, the airflow is no longer enough to raise the flap. The flap will drop at this point, indicating it is time

to empty the catcher.

As soon as grass clippings start to trail the lawn mower, it is time to empty the grass catcher.

NOTE· Before taking off the grass catcher, switch off the engine and wait until the blade has come to

a stop.

1. To take off the grass catcher, use one hand to lift up the ejector flap and the other to grab onto the carry

handle. The ejector flap automatically falls down after removing the grass catcher and closes off the rear

chute opening.

2. Empty the grass catcher of grass debris and then refit grass catcher.

NOTE: If any grass residue is caught in the discharge chute, clean it using a brush. Do not remove

grass debris in the mower casing or on the blade with your hand or feet. Instead, use suitable tools

such as a brush or broom. To ensure that the cut grass can be collected into the grass catcher, the

discharge opening, and interior of the mower casing must be cleared of any blockage.

A

B

Grass catcher full

indicator flap

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Using the Side Discharge Attachment

Some models may feature a "side discharge chute" attachment. The side discharge chute ejects the grass

cutting to the side of the mower. When using the side discharge chute, the grass catcher is not required. To

install the side discharge chute attachment:

1. Remove the grass catcher, if installed. Lift up and hold the flap (A) on the side of the mower deck.

2. Insert the side discharge chute attachment (B) under the flap. Ensure that the protrusions (C) on the

underside of the flap enter the slots (D) on the top of the side discharge chute, then lower the flap.

To remove the side discharge chute attachment, lift the flap until the chute unhooks from it, then remove the

chute and lower the flap.

Using the Self-Propel Function

Some models may have a self-propelling function (forward

direction only) to make mowing easier. The function is switched

on and off using "drive activation bar" (A). When the bar is

released, the drive stops. The speed of the drive is not directly

controllable, however, may vary somewhat with engine speed.

Note: When the engine is not running, if the drive activation

bar is pulled in, the drive gears will engage which can make it

difficult to move the machine. It is recommended to release

the drive activation bar when changing direction, reversing

etc.

To activate the self-propel function, hold the drive activation bar against the handle (B). To deactivate the

function, release the bar.

Using the Deck Wash Function

Some models may have a "deck wash" function to help make cleaning

the blades and cutting area (under the deck) easier. Note that the

function is not intended to completely clean the mower – it will remove

some built-up cuttings and dirt from the deck, but more importantly, will

soften it up to make removal by hand easier. Keeping the underside of

the deck clean will prolong the life of the machine and blades. To use the

deck wash function:

1. Install the mulching and side discharge chute attachments and lower

the deck to the lowest cutting height.

2. Attach a garden hose the deck wash port (A) and turn the water on.

3. Start the engine and allow it to run at high speed for approximately 30 to 60 seconds – be aware that

water and grass cuttings/dirt will be ejected through the side discharge chute.

4. Stop the engine and turn off the water, then scrape away cuttings/dirt from the deck by hand (wear

gloves) or using a suitable tool. This procedure may have to be repeated several times.

A

B

C

D

A

B

A

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Mowing Guidelines

If the machine strikes against an object during mowing or an object gets caught in

the mower, stop the machine immediately. Allow the machine to stop running

completely and to cool down before inspecting the machine and/or removing any objects that may be

caught in it. If the machine is damaged, have it inspected and repaired at an authorized service

centre before using it again. • If you experience excessive vibration from the mower during

operation, this is an indication of wear or damage. It is recommended to have it inspected and

repaired at an authorized service centre before using it again.

The following information are general guidelines to mowing:

• Avoid cutting wet grass. Wet grass clipping do not collect well and have a tendency to stick to the

underside of the mower deck.

• Avoid cutting very tall grass. If the grass is tall, mow in several passes, each time reducing the cut

height.

• Avoid overly steep slopes when mowing and, when mowing on an incline, mow across the face of the

incline, not up and down it.

• Be aware that cutting more than one third of the total height of the grass may affect the health of the

grass, and that weeds are able to spread more easily in extremely short grass. A healthier lawn is

achieved by regular mowing and not cutting the grass back excessively.

• When mowing, move the mower through the grass at a sensible rate so as to not strain the machine or

otherwise reduce its effectiveness, and to achieve the best cutting results.

• Mow in slightly overlapping rows. An effective pattern is to mow in straight lines,

starting along the longest edge of the work area, then turning at the end and mowing

the next row and so on. Using a regular pattern helps keep the end result neat and

reduces the chance of uncut areas.

• For lawns with trees or flowerbeds, for best results it is recommended to cut 1 or 2

rows around the circumference of trees/flowerbeds.

WARNING: • Always observe the strictest safety procedures when using the lawnmower. • Carefully

read the safety instructions of this manual before using the lawnmower. • Never open the ejector flap

when the grass catcher has been detached (to be emptied) and the engine is still running. The

rotating blade can cause serious injuries!

1. Select your required setting.

2. Start the engine and allow it to run and set it to required speed. See Starting the Engine.

3. Keep a firm grip on the upper handle with engine stop/start lever and drive lever (clutch lever) dosed and

walk along with its self-propelling to start mowing.

When Mowing:

•

Walk. never run with the mower. be very careful when mowing uneven or rough ground.

•

Mow across slopes. never up and down.

•

Be careful when changing the direction of the mower on a slope.

•

Do not mow excessively steep slopes.

Note: Grass clippings can clog underneath the mower deck, preventing the blades from turning.

This can overheat the engine, causing excessive wear to engine components, reducing the lawn

mower's overall lifespan or catastrophic failure of engine bearings and pistons.

Clogging occurs if you mow wet, long, or lush grass. For the best result, mow when the grass is

dry and use a whipper snipper to reduce the height of grass longer than 15cm (6”) before

mowing on the highest cutting setting.

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•

Grass grows at different rates at different time of the year. Never use the lowest cutting height for the

first cut of the season or in drought conditions.

•

Only about one thirds of the grass height should be cut.

•

When mowing with the mulching function, do not cut high or wet grass to ensure that the cut grass can

be scattered efficiently. When you have been cutting for several minutes, please stop the mower, and

clean the blade and the deck.

•

Do not remove grass debris in the mower casing or on the blade by hand or with your feet. Instead, use

suitable tools such as a brush or broom.

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Maintenance

Running combustion engines in confined areas CAN KILL IN MINUTES. Engine

exhaust fumes contain carbon-monoxide – a deadly gas that you cannot smell or

see. NEVER run a combustion engine in confined areas EVEN IF windows and

doors are open. ONLY run combustion engines OUTDOORS and away from doors,

windows and vents. • Petrol / fuel / gasoline is extremely flammable – keep clear of

naked flames or other ignition sources. • Do not have the engine running during inspection and

maintenance unless specifically required. • The engine should be cool enough to touch before

performing maintenance activities. • Some maintenance activities may be beyond the scope of some

users. Do NOT attempt procedures that you are not comfortable with, or do not have the necessary

tools, experience or knowledge for – take the unit to an authorised service centre or qualified

technician for servicing. • Harsh operating environments such as extreme temperatures, dust etc

may necessitate more frequent maintenance. • Failure to follow the maintenance schedule, using

incorrect or non-compatible accessories or replacements parts, or general negligence may result in

making the product warranty void.

To keep the machine performing at optimal efficiency, regular checks and maintenance is required. The

maintenance schedule below specifies preventative maintenance checks and necessary maintenance tasks

and how often they should be performed. The schedule applies to multiple engines; some engines may not

include some components, so maintenance on those components is not applicable.

Maintenance Schedule

Use the following maintenance schedule for a list of regular maintenance tasks and how often they need to

be performed. Maintenance frequency is based on average usage. Be aware of how much the machine is

used and be sure to follow the schedule according to time or usage, whichever comes first.

Towards the end of this document is a form you can use for maintenance record keeping. It is recommended

that you keep a reference of all maintenance.

Major Servicing and "Heavy-Duty" Usage - For engines that are subject to "heavy-duty" use,

which can be defined as being used under loads of 85% or more and / or in use more than

approximately 300 hours per year (for example, generators and water pumps), more frequent "Major

Service" maintenance is required. In addition to normal service requirements, and as with many

smaller machine and off-road bike engines, the following parts (as applicable for petrol, diesel or 2-

stroke engines) may require replacement during a major service:

• Piston rings.

• Big-end bearings.

• Small-end bearings.

• Gudgeon pin.

• Oil rings.

• Gaskets and seals.

• Valve seats.

Inspection of the following items is required:

• Piston for cracks and stress fractures.

• Bore for wear requiring reconditioning.

• Full machine for broken, worn or loose parts.

Failure to follow the maintenance schedule, using incorrect or non-compatible accessories or

replacements parts, or general negligence may result in making the product warranty void.

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Maintenance Schedule – Petrol Engine / Machine

Major Service

–

Heavy

-Duty Use

Every 200

Hours Use

Replace

Check. Tighten as necessary

Replace

Clean

Replace as necessary

Check. Clean

Flush and clean

Check. Adjust as necessary

Check. Tighten as necessary

Check. Clean / de

-coke as necessary

Check level. Adjust as necessary

Perform

Sharpen. Replace as necessary

Replace

Check. Replace as necessary

Major Service

–

Normal Use

24 Months / 200

Hours Use

12 Months /

100 Hours

Use

Clean, Oil and Replace

as necessary.

Clean. Replace as necessary

6 Months / 50

Hours Use

Clean. Replace as

necessary

3 Months / 25

Hours Use

Check

After First 5

Hours Use

Every Use

Check level. Adjust

as necessary

Check

Check level. Adjust

as necessary

Check level. Adjust

as necessary

Check tension.

Clean & adjust as

necessary.

How to

remove the cover.

Component / Task

Engine Oil

****

Engine Oil Filter

*

Loose Engine / Machine

Fasteners

Air Filter

Spark Plug

Spark Arrestor

*

Fuel Filter

*

Fuel Strainer

*

Float Bowl

*

Fuel Lines / Hoses

Fuel injector

*

Fuel Pump

*

Fuel Tank

Idle Speed

Valve Clearance

Cylinder Head Fasteners

Combustion Chamber

Battery Electrolyte

*

Major Service

Cutting Blade / Chain

*

Water Pump Oil

**

Hydraulic Fluid

***

Drive Belt

Maintenance *

* Where applicable. ** Pressure washers with non-sealed water pumps. *** Log splitters only.

**** Briggs & Stratton "EXi" engines do NOT require engine oil changes; just ensure that oil level is correct.

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Engine Oil

Engines are NOT supplied with engine oil, although traces of oil from the

manufacturing process may be present. It is essential to add adequate engine oil of

the correct type to the engine before use. Failure to add engine oil will void the product warranty. •

Always check engine oil level when the machine is in an upright position on a flat and level surface. •

Do not use used or contaminated engine oils. • Use only engine oils of the correct type (see

Specifications). • Perform the first oil change within the first 20 hours of use. Subsequently, change

the oil every 20 hours of use. • It is recommended that the engine be warm, but not hot, when

performing oil changes. When the oil is warm it drains faster. • Using dirty or incorrect engine oil may

cause engine damage and void any warranty • Always use suitable tools. • Always dispose of used

oil in an environmentally responsible manner and according to regulations. • Some engines feature

oil level detection, which will prevent the engine being started or automatically stop a running engine

if there is insufficient oil. • Always check the oil level and ensure is at or near the "MAX" indicator

before using the machine. • Some models may have 2 oil drain plugs and fillers on either side of the

engine – it does not matter which one is used.

4-stroke engines require engine oil in the crankcase for lubrication of internal components. Severe or

irreparable damage may occur if the engine is allowed to run without engine oil. The engine oil level requires

regular maintenance as per the maintenance schedule.

To Check Engine Oil Level

Step 1: Locate the oil fill cap on the crankcase to start. Fill cap locations

vary, depending on the make and model of your engine.

Step 2: Clean the Crankcase: To prevent dirt and debris from falling into

the crankcase, use a clean cloth to wipe the area clean before removing

the cap.

Step 3: Inspect the Oil Dipstick and wipe it with a clean cloth.

•

To ensure an accurate reading, reinsert the dipstick completely. If the dipstick

cap is a screw-in type, ensure an accurate reading by screwing in all the way

before removing it to check the level.

•

Then, remove it again and check the oil level.

Oil should be filled to the H marked on the dipstick.

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Step 4: Never fill over the H (full) mark on the dipstick.

Air Filter

Operating the machine without a functional air filter may cause severe engine damage and

will void any warranty. • A dirty or oil saturated air filter will restrict air flow, which can be

mistaken as fuel system problems. Check the condition of the air filter before adjusting engine idle

speed, where applicable. • If the air filter is damaged (torn, broken, disintegrating), replace it.

The air filter is used to prevent dirt and other particles from possibly entering the engine and causing internal

damage to it. The air filter requires regular maintenance as per the maintenance schedule.

Inspection and Cleaning

Inspect the air filter for dirtiness and debris, damage etc. Clean or replace the filter element as necessary. To

clean air filters:

• For foam filters, wash the filter in warm water and mild detergent, then rinse and allow to dry.

• For paper filters, use compressed air to blow particles from it. The air should be blown from the engine

side of the filter. Tapping the filter element against a hard surface and brushing the pleats using a soft

brush may also help remove debris from the filter.

• Clean all other air filter assembly components using water and mild detergent, then dry them.

• For foam filters, place a few drops of clean engine oil on the filter then squeeze it a few times to spread

the oil through the filter material and remove any excess oil.

Removal/Installation

1. Depending on model, the air filter cover (A) may be secured using a screw (B), or clips (C) into position.

If the cover has a screw, loosen it (rotate left) and remove the cover from the air intake assembly. If the

air filter cover is secured with clips, carefully release them – usually, you will need to press the tab of the

clip to release it. Carefully remove the air filter cover – some covers may hinge or have protrusions that

help locate it against the engine.

2. Remove the filter element (D).

To install the air filter:

1. Insert the air filter element, and ensure it is correctly positioned in relation to the air intake assembly as it

will seat and seal properly in one position only.

2. Re-install the filter cover, ensuring it is fitted properly against the engine and secure it with the screw

(rotate right and tighten by hand. Do not over-tighten), or clips.

A

C

D

B

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16" Petrol Lawn Mower - 660EX

Spark Plug

If the spark plug is damaged (cracked insulator, broken or eroded electrodes etc), replace it.

• Always use spark plugs of the correct "heat range" - see Specifications.

The spark plug is used to ignite the air/fuel mixture inside the engine. The spark plug has electrodes on one

end and an electrical terminal on the other. The spark plug requires regular maintenance.

Cleaning and Gap Checking

The spark plug should be checked and cleaned as per the maintenance schedule.

1. Remove any carbon deposits on the spark plug (A) electrodes (B) with a wire

brush.

2. Clean the spark plug threads and the electrical terminal (C) on the top.

To check and adjust the spark plug "gap":

• Use "feeler" or "thickness" gauges (X) to measure the existing gap. The gauge

must drag a little when being slid between the electrodes (2) – this means the

measurement is fairly accurate.

• Adjust the gap to within specification (see Specifications). If the gap needs to be

reduced, gently tap the electrode as required. If the gap needs to be increased,

use pliers to gently pull the electrode as required.

• Measure the gap again and ensure it is within the specified range before re-installing the spark plug.

Removal/Installation

1. Pull the electrical lead (A) from the terminal on top of the spark plug (B).

2. If accessible, clean the area around the spark plug so that no dirt or other material can enter the engine

when the spark plug is removed.

3. Use the spark plug tool (C) to remove the spark plug (rotate left).

To re-install the spark plug:

1. Place the spark plug in its hole and screw it in (rotate right) until "finger tight".

2. Use the spark plug tool to tighten the spark plug approximately one quarter turn (do not over-tighten).

3. Place the electrical lead over the spark plug terminal and push it down so that it connects firmly with the

terminal.

A

B

X

C

B

A

C

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16" Petrol Lawn Mower - 660EX

Cutting Blades

If any cutting blade is structurally damaged (cracked or broken etc), replace it. •

Always use manufacturer supplied replacement blades. • Before removing the blades,

disconnect the spark plug lead and ensure the fuel cap is secure. • Always wear suitable protective

gloves when handling cutting blades.

The cutting blade(s) are spun at very high speed for efficient grass cutting. Sharp blades provide the most

efficiency, and neatest finish Depending on frequency of use and contact with stones, roots etc, the blades

will require regular maintenance:

Sharpening

1. Remove the blade(s) from the machine.

2. Remove any loose material from the blades with a wire brush. Inspect

the blades for damage or wear that cannot be sharpened out – replace

the blade if damaged or overly worn.

3. When sharpening, carefully follow the existing cutting edge angle

(generally 40 to 45°). Remove enough material so the blade face is

bright and that the cutting edge is complete over its length (no nicks or

gouges). The blades do not need to be razor sharp – butter knife

sharpness is fine. Sharpen using a:

• Hand file. Mount the blade in a vice, or clamp it securely to a

suitable surface. Move the cutting edges of the file from the blunt

side of the blade toward the cutting edge.

• Angle grinder. Mount the blade in a vice, or clamp it securely to a

suitable surface. Move the disc along the cutting edge, with it

rotating toward the cutting edge.

• Bench grinder – Hold the blade securely, then bring the cutting

edge up to the grinding wheel so the wheel is rotating toward the

cutting edge, then run the blade back and forward across the

grinding wheel.

Removal/Installation

1. Rotate the lawn mower so it is on its side. Rotate it so the carburettor is facing up.

2. Clearly mark the bottom and cutting side of the blade(s), so you know which way to re-install it, or which

way to install the replacement blade. If the blades are installed incorrectly, they will not cut.

3. For one-piece blades, hold the blade (A) (or wedge it with a wood etc) to prevent it rotating, then remove

the central bolt (B) or nut using a suitable spanner. Keep note of any washers, spacers etc and their

positions, then remove the blade.

For multi-piece blades, remove the bolt (E) or nut securing each blade (C) to the main rotor (D). Keep

note of any washers, spacers etc and their positions, then remove the blades.

4. Using a wire brush, clean all blade mounting pieces, and the areas where the blades mount to the

machine.

To re-install the blade(s):

B

A

D

E

C

Hand File

Angle

Grinder

Bench Grinder

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16" Petrol Lawn Mower - 660EX

1. Place the blade(s) in position – ensure that any washers, spacers etc are positioned correctly, and the

blade is oriented correctly, with the cutting edge in the direction of rotation and the raised edge of the

blade (if applicable) facing up toward the deck.

2. Using a suitable spanner, secure the blade(s) firmly by hand. Firmly hold the blade or wedge it to prevent

it rotating.

3. Rotate the machine so it is resting on its wheels, then re-attach the spark plug lead etc.

Cleaning Guidelines

Do not use solvents, chemicals or abrasives when cleaning the machine, as some surfaces

may be damaged. • Wear gloves or use suitable tools to assist in cleaning – do not use bare

hands. • Clean the machine after every use to ensure best performance and longest service life. • It is

recommended to jack the machine up when inspecting or working on the underside of the deck.

Avoid tilting the machine to avoid potential fuel or oil spills or leaks.

• Use a slightly damp cloth, water and mild detergent for cleaning.

• Use a brush for parts that are difficult to reach.

• Ensure air vents and surfaces designed for heat dissipation are clean and free of obstructions or debris.

• Remove clippings, dirt etc from the underside of the deck and cutting blades (the deck wash function on

some models assists this procedure).

• It is recommended to lightly oil the cutting blades after each use to help prevent corrosion.

• Ensure all chutes and flaps are clean and not obstructed.

• Ensure that spring-loaded parts, such as the rear guard, return to the normal position when released.

• Clean and check the grass catcher for any damage – replace damaged parts. Allow the grass catcher to

dry thoroughly before storing to prevent mildew or deterioration of the catcher netting (where applicable).

• Ensure that all control cables, levers, switches etc are clean and operate normally and smoothly.

Cleaning the Drive Belt

From time-to-time, the drive belt needs to be accessed and cleaned to

remove any accumulated debris that can cause the self-propelling

function to stop working.

Please see video link to the right for a general overview on how to

access and diagnose the drive belt.

Video Tutorial:

Drive Belt Diagnosis

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16" Petrol Lawn Mower - 660EX

Transportation and Storage

Always ensure that the machine is cool enough to touch before transporting or

storing. • Petrol/fuel/gasoline is extremely flammable – keep clear of naked flames or

other ignition sources. • Always transport the machine with the fuel tap and engine ON / OFF switch (where

applicable) in the "OFF" position. • Drain the fuel tank before transportation or storage.

Preparing for Transport and Storage

• Drain the fuel system by allowing the engine to run until it stops. It is advised to have the fuel tank as

empty as possible before draining.

• Ensure that the fuel tap (if applicable), engine ON/OFF or key switch (where applicable) is in the "OFF"

position.

• Disconnect the spark plug lead.

• Avoid exposing the equipment to direct sunlight, particularly during transportation.

• Ensure the equipment is secure and upright during transport.

• Store the unit in a dry, well-ventilated area and out of the reach of children.

Long Term Storage

Follow the normal procedures for storage, then:

• Unscrew (rotate left) the carburettor drain plug. Use a suitable container to catch the draining fuel, and

allow the fuel to drain. Store the drained fuel in a properly sealed container.

• Re-install (rotate right) the carburettor drain plug and tighten.

• Remove the spark plug and put 10ml of clean engine oil into the cylinder. Pull the starter cord slowly to

distribute the oil. Re-install the spark plug.

• Cover the equipment to protect it.

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16" Petrol Lawn Mower - 660EX

Troubleshooting

Running combustion engines in confined areas CAN KILL IN MINUTES. Engine

exhaust fumes contain carbon-monoxide – a deadly gas that you cannot smell or

see. NEVER run a combustion engine in confined areas EVEN IF windows and doors

are open. ONLY run combustion engines OUTDOORS and away from doors,

windows and vents. • Petrol/fuel/gasoline is extremely flammable – keep clear of

naked flames or other ignition sources. • The product is NOT supplied with engine oil, although

traces of oil from the manufacturing process may be present. It is essential to add adequate engine

oil of the correct type to the engine before use – see Engine Oil. Failure to add engine oil will void the

product warranty. • Do not have the engine running during inspection and maintenance unless

specifically required. • The engine should be cool enough to touch before performing maintenance

activities. • Some maintenance activities may be beyond the scope of some users. Do NOT attempt

procedures that you are not comfortable with, or do not have the necessary tools, experience or

knowledge for – take the unit to an authorised service centre or qualified technician for servicing.

The following information may assist in identifying a problem and rectifying it.

Cannot attach grass catcher.

Possible Fault Action

Handle installed incorrectly

For models that do not have spigots on the handle mounting brackets, ensure the handle is

installed against the outer face of the mounting brackets.

Difficulty starting the engine.

Possible Fault Action

Technique incorrect

Ensure engine safety bar (if equipped) is against the handle when starting and whenever the

engine is running.

Lack of fuel

Check that there sufficient fuel in the tank and the fuel tap (if equipped) is in the "ON"

position. • To further check if fuel is reaching the carburettor, remove the carburettor drain

plug and check if fuel drains.

Engine "OFF" Ensure the engine ON / OFF switch (if equipped) is in the "ON" position.

Carbon build-up on spark plug Perform a spark plug service.

Spark plug faulty

Remove the spark plug, then reconnect the plug lead to it. Place the fuel tap (if equipped) in

the "OFF" position and the engine ON/OFF switch (if equipped) in the "ON" position. Touch

the spark plug electrode to a part of the engine crankcase, away from the spark plug hole,

and attempt to start the engine – a spark should be visible across the electrodes as the

engine is rotated. If no spark is visible, replace the spark plug. Not applicable to diesel

engines.

Engine "flooded" with fuel

Place the choke in the "HOT" or "RUN" position. Leave the engine ON / OFF switch (if

equipped) in the "OFF" position. Pull the starter cord several times to assist clearing excess

fuel from engine before attempting to start engine.

Not enough or too much engine oil

Check oil level and ensure that the level is at or just below the recommended maximum

level. For some engines, an engine oil sensor will automatically switch off the engine or

prevent starting if a low engine oil level is detected.

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16" Petrol Lawn Mower - 660EX

Engine starts but does not idle.

Possible Fault Action

Technique incorrect

Ensure engine safety bar (if equipped) is against the handle when starting and whenever the

engine is running.

Blocked air filter Perform an air filter service.

Idle speed requires adjustment Adjust idle speed until engine runs smoothly and at a reasonable speed when idling.

Engine starts but runs erratically.

Possible Fault Action

Spark plug lead loose

Ensure the spark plug lead is undamaged and is securely connected to the spark plug

terminal.

Choke ON Set the choke to the "HOT" or "RUN" position.

Blocked fuel line or stale fuel. Clean the fuel line. Fill the tank with clean, fresh fuel.

Water or dirt in fuel system Drain fuel tank and carburettor. Refill with fresh fuel.

Dirty air filter Perform an air filter service.

Difficulty restarting the engine after use or engine stops suddenly during use.

Possible Fault Action

No fuel or engine oil

Check that there sufficient fuel in the tank and the fuel tap (if equipped) is in the "ON"

position. For some engines, an engine oil sensor will automatically switch off the engine or

prevent starting if a low engine oil level is detected.

Cutting blades jammed

Remove jammed material from the machine. In the case of obstacles in the work area (rocks,

roots etc), avoid them or raise cutting height.

Overheating

Allow engine to cool before restarting. Ensure all air vents and heat dissipation surface are

clean and free of debris. If possible, improve engine cooling, such as operating in lower

temperatures.

Carbon build-up on spark plug Perform a spark plug service.

Carburettor blocked Clean the carburettor.

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16" Petrol Lawn Mower - 660EX

Reduced engine speed/power during use.

Possible Fault Action

Blocked air filter Perform an air filter service.

Carbon build-up in engine and/or

entry to exhaust silencer

Remove the engine cylinder head and clean any carbon from the combustion chamber. For

the exhaust silencer, remove it and clean any carbon deposits from the exhaust entry port.

Carbon build-up on spark plug Perform a spark plug service.

Fuel system blockage Clean fuel lines / fuel filter / carburettor / fuel injector.

Grass cutting is poor.

Possible Fault Action

Blades dull or damaged Sharpen or replace cutting blades.

Cutting too much in one pass

Adjust the cutting height and rate of mowing to reduce load on the engine. For tall or very

thick grass, cut in several passes. Do not attempt to cut beyond the capacity of the machine.

Cutting height not suitable Adjust cutting height as required.

Engine overheats.

Possible Fault Action

Engine oil level low Fill the crankcase with the correct engine oil type to the "MAX" indicator or just under.

Dirty air cleaner Perform an air filter service.

Excessive vibration.

Possible Fault Action

Blades dull or damaged Sharpen or replace cutting blades.

Fasteners loose Check all accessible fasteners for tightness.

Engine output shaft worn or bent Replace worn or damaged parts as required.

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16" Petrol Lawn Mower - 660EX

Self-propel function no longer works.

Possible Fault Action

Excessive grass build-up

Remove drive belt cover plate from the underside of the mower and remove all clumps of

grass build-up.

Drive belt has become dislodged Remove drive belt cover plate from the underside of the mower and reseat the drive belt.

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16" Petrol Lawn Mower - 660EX

Specifications

Deck material

Plastic

Engine type

DV98

Engine Oil

10w40 / 15w40

Spark Plug Gap

.030"

Displacement

139cc

Rated engine power

1.3kW

Front/Rear wheel

6 inch

Fuel tank capacity

1L

Fuel type

Regular Unleaded 91+ RON

Oil capacity

0.4L

Rated engine speed

3000 rpm/min

Height adjustment

4 wheels individual

Cutting heights

25-65mm with 3 grades

Catcher type

Fabric

Catcher volume

35L

Cutting width

390mm

Note: Minimal Assembly required

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16" Petrol Lawn Mower - 660EX

Engine Service and Maintenance Record

Use the following tables as a record of machine servicing and maintenance. Keeping accurate records will

help ensure longest machine service life and may simplify fault diagnosis and any possible warranty claims.

Fill out date, number of hours of use and the activity performed, as required (see Maintenance Schedule).

Date

Hours Use Maintenance Task / Notes

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16" Petrol Lawn Mower - 660EX

Some experts believe the incorrect or prolonged use of almost any product could cause serious

injury or death. For information that may reduce your risk of serious injury or death, consult the

points below and additionally, the information available at www.datastreamserver.com/safety

• Consult all documentation, packaging and product

labelling before use. Note that some products feature

online documentation which should be printed and kept

with the product.

• Check product for loose / broken / damaged / missing

parts, wear or leaks (if applicable) before each use.

Never use a product with loose / broken / damaged /

missing parts, wear or leaks (if applicable).

• Products must be inspected and serviced (if applicable)

by a qualified specialist every 6 months assuming

average residential use by a person of average weight

and strength, above average technical aptitude, on a

property matching average metropolitan specification.

Intended use outside these guidelines could indicate

the product is not suitable for intended use or may

require more regular inspection or servicing.

• Ensure all possible users of the product have

completed an industry recognized training course

before being given access to the product.

• The product has been supplied by a general merchandise retailer that

may not be familiar with your specific application or your description

of the application. Be sure to attain third-party approval for your

application from a qualified specialist before use regardless of prior

assurances by the retailer or its representatives.

• This product is not intended for use where fail-safe operation is

required. As with any product (take an automobile, aircraft, computer

or ball point pen for example), there is always a small chance of

technical issues that needs to be repaired or may require

replacement of the product or a part. If the possibility of such failure

and the associated time it takes to rectify could in any situation

inconvenience the user, business or employee then the product is not

suitable for your requirements. This product is not for use where

incorrect operation or a failure of any kind, including but not limited to

a condition requiring product return, replacement, service by a

technician or replacement of parts could cause a financial loss, loss

of employee time or an inconvenience requiring compensation.

• If this item has been purchased in error after considering the points

above, simply contact the retailer directly for details of their returns

policy, if required.

diagrams or images may be reproduced or transmitted in any form or by any means, electronic or

mechanical, including photocopying, scanning or recording, or any information storage and retrieval system,

without express permission or consent from the publisher.

BAUMR-AG MOWPSHBMRB16E Petrol Lawn Mower 139cc 16" 4 Stroke Push 660EX Series II

Product's Documents

Product manual

Specifications

BAUMR-AG MOWPSHBMRB16E Questions and Answers