Safety Instructions & Operator's Manual for
21" STEEL DECK
WALK MOWERS
"M" MODEL
SERIES 17
MODELS
PUSH PROPELLED
MODEL MODEL
WMR216517B WMRP216517B
MODEL NUMBER EXPLANATION
MODEL DESIGNATION
SELF-PROPELLED
CUTTING WIDTH
I RIP 1211851171 B
I I
ENGINE TYPE
SERIES DESIGNATION
ENGINE HORSE POWER
W - Model Designation M - Model Designation
R - Recycling Model P - Self Propelled Model
21 - 21" Cutting Width
65 - 6.5 HP (Engine Horse Power)
17 - Series Designation
B - Briggs & Stratton Engine
Thank you for buying a SNAPPER Product! Before operating your Walk Behind, read this manual carefully and pay
particular attention to the "IMPORTANT SAFETY INSTRUCTIONS" on Pages 2 & 3. Remember that all power
equipment can be dangerous if used improperly. Also keep in mind that SAFETY requires careful use in accordance
with the operating instructions and common sense.
COPYRIGHT G 2002
SNAPPER INC.
ALL R_GHTS RESERVED
McDonough, GA., 30253 U.S.A.
MANUAL No. 7-4942 (I.R. 6/07/02)
IMPORTANT SAFETY INSTRUCTIONS
WARNING: This powerful cutting machine is capable of amputating hands and feet and can throw objects that
can cause injury and damage! Failure to comply with the following SAFETY instructions could result in serious
injury or death to the operator or other persons. The owner of the machine must understand these instructions
and must allow only persons who understand these instructions to operate machine. Each person operating the
machine must be of sound mind and body and must not be under the influence of any substance, which might
impair vision, dexterity or judgment. If you have any questions pertaining to your machine which your dealer
cannot answer to your satisfaction, call or write the Customer Service Department at SNAPPER, McDonough,
Georgia 30253. Phone: (1-800-935-2967).
PROTECTION FOR CHILDREN
Tragic accidents can occur if the operator is not alert
to the presence of children. Children are often
attracted to the machine and the mowing activity.
Never assume that children will remain where you
last saw them.
1. KEEP children out of the mowing area and under
the watchful care of a responsible adult.
2. DO NOT allow children in yard when machine is
operated and turn machine OFF if anyone enters
the area.
3. DO NOT allow pre-teenage children to operate
machine.
4. ALLOW only responsible adults & teenagers with
mature judgment under close adult supervision
to operate machine.
5. DO NOT pull mower backwards unless
absolutely necessary. LOOK and SEE behind and
down for children, pets and hazards before and
while backing.
6. USE EXTRA CARE when approaching blind
corners, shrubs, trees, or other objects that may
obscure vision.
SLOPE OPERATION
1. Slopes are a major factor related to slip and fall
accidents, which can result in severe injury. All
slopes require extra caution. If you feel uneasy
on a slope, DO NOT mow it.
2. Mow across slopes, never up-and-down.
Exercise extreme CAUTION when changing
directions on slopes. DO NOT mow steep slopes
or other areas where stability or traction is in
doubt.
3. Use extra care with grass catchers or other
attachments; these affect the handling and the
stability of the machine.
PREPARATION
1. Read, understand, and follow instructions and
warnings in this manual and on the mower,
engine and attachments. Know the controls and
the proper use of the mower before starting.
2. Only mature, responsible persons shall operate
the machine and only after proper instruction.
PREPARATION
(Continued From Previous Column)
3. Data indicates that operators age 60 and above,
are involved in a large percentage of mower-
related injuries. These operators should evaluate
their ability to operate the mower safely enough
to protect themselves and others from serious
injury.
4. Handle fuel with extra care. Fuels are flammable
and vapors are explosive. Use only an approved
fuel container. DO NOT remove fuel cap or add
fuel with engine running. Add fuel outdoors only
with engine stopped and cool. Clean spilled fuel
and oil from machine. DO NOT smoke.
5. Check the area to be mowed and remove all
objects such as toys, wire, rocks, limbs and
other objects that could cause injury if thrown by
blade or interfere with mowing. Also note the
location of holes, stumps, and other possible
hazards.
6. Keep people and pets out of the mowing area.
Immediately, STOP Blade, Stop engine and Stop
mower if anyone enters the area.
7. Check shields, deflectors, switches, blade
controls and other safety devices frequently for
proper operation and location.
8. Make sure all safety decals are clearly legible.
Replace if damaged.
9. Protect yourself when mowing and wear safety
glasses, long pants and substantial footwear. DO
NOT mow barefooted or with sandals.
10. Know how to STOP blade and engine quickly in
preparation for emergencies.
11. Use extra care when loading or unloading the
machine into a trailer or truck.
12. Check grass catcher components frequently for
signs of wear or deterioration and replace as
needed to prevent injury from thrown objects
going through weak or torn spots.
2
IMPORTANT SAFETY INSTRUCTIONS
OPERATION
1. DO NOT put hands or feet near or under rotating
parts. Keep clear of discharge area while engine
is running.
2. STOP engine when crossing gravel drives,
walks, or roads, and under any conditions where
thrown objects might be a hazard.
3. Mow only in daylight or good artificial light.
4. DO NOT operate mower while under the
influence of alcohol or drugs.
5. After striking a foreign object or if mower
vibrates abnormally, STOP the engine,
disconnect and secure spark plug wire. Inspect
the mower for any damage and repair the
damage.
6. DO NOT mow near drop offs, ditches or
embankments. Operator could lose footing or
balance.
7. STAY ALERT for holes and other hidden hazards.
Tall grass can hide obstacles. Keep away from
ditches, washouts, culverts, fences and
protruding objects.
8. DO NOT mow on wet grass. Always be sure of
your footing. Keep a firm hold on the handle and
walk, never run. Slipping could cause injury.
9. DO NOT leave the machine with the engine
running. STOP BLADE and STOP ENGINE before
leaving the operators position for any reason.
10. Before cleaning, repairing or inspecting make
certain engine, blade and all moving parts have
STOPPED. Disconnect and secure spark plug
wire away from plug to prevent accidental
starting.
11. STOP engine and wait until the blade comes to
complete STOP before removing grass bag
and/or clearing grass.
12. DO NOT operate mower without the entire grass
catcher or guards in place. DO NOT point
discharge at people, passing cars, windows or
doors.
13. Slow down before turning.
14. Watch out for traffic when near or crossing
roadways.
15. DO NOT operate engine in enclosed areas.
Engine exhaust gases contain carbon monoxide,
a deadly poison.
MAINTENANCE AND STORAGE
1. DO NOT store mower or fuel container inside
where fumes may reach an open flame, spark or
pilot light such as in a water heater, furnace,
clothes dryer or other gas appliance. Allow
engine to cool before storing machine in an
enclosure. Store fuel container out of reach of
children in a well ventilated, unoccupied
building.
2. Keep mower and engine free of grass, leaves or
excess grease to reduce fire hazard and engine
overheating.
3. When draining fuel tank, drain fuel into an
approved container outdoors and away from
open flame.
4. Keep all bolts, especially blade bolts, nuts and
screws properly tight. Check that all cotter pins
are in proper position.
5. Always provide adequate ventilation when
running engine. Engine exhaust gases contain
carbon monoxide, a deadly poison.
6. Service engine and make adjustments only when
engine is stopped. Removed spark plug wire
from spark plug and secure wire away from
spark plug to prevent accidental starting.
7. DO NOT change engine governor speed settings
or overspeed engine.
8. Check grass bag assembly frequently for wear or
deterioration to avoid thrown objects and
exposure to moving parts. Replace with new bag
if loose seams or tears are evident. Replace
slider or bag adapter if broken or cracked.
9. Mower blades are sharp and can cut. Wrap the
blades or wear heavy leather gloves and use
CAUTION when handling them.
10. DO NOT test for spark by grounding spark plug
next to spark plug hole; spark plug could ignite
gas exiting engine.
11. Have machine serviced by an authorized
SNAPPER dealer at least once a year and have
the dealer install any new safety devices.
12. Use only genuine SNAPPER replacement parts to
assure that original standards are maintained.
3
TABLE OF CONTENTS
IMPORTANT SAFETY INSTRUCTIONS ..................................................................... 2 & 3
TABLE OF CONTENTS ..................................................................................................... 4
SECTION 1 - FAMILIARIZATION ...................................................................................... 5
SECTION 2 -OPERATING INSTRUCTIONS ............................................................... 6-10
Pre-start Checklist ...................................................................................................... 6
Starting & Stopping Engine & Blades ................................................................... 6-7
Starting & Stopping Wheel Drive .............................................................................. 7
Handle Height Adjustment ......................................................................................... 7
Cutting Height Adjustment ........................................................................................ 7
Recycling Operation ................................................................................................... 8
Installation of Grass Bag Adapter ............................................................................. 8
Installation of Recycling Plug ................................................................................... 8
Installation of Grass Bag (Slide Closure Type) ....................................................... 9
Installation of Discharge Deflector ......................................................................... 10
Installation of Recycling Cover ............................................................................... 10
SECTION 3 - MAINTENANCE INSTRUCTIONS ........................................................ 11-12
Change Engine Oil .................................................................................................... 11
Check Transmission Grease .............................................................................. 11-12
Check Mower Blade ................................................................................................. 12
Check Engine Drive Belt .......................................................................................... 12
Check Transmission Poly-V Belt ............................................................................ 12
Service - Annually ..................................................................................................... 12
Engine ................................................................................................................... 12
Air Filter ................................................................................................................ 12
Engine Oil ............................................................................................................. 12
Storage Procedure ................................................................................................... 12
SECTION 4 - ADJUSTMENTS AND REPAIR ............................................................. 13-19
Mower Blade Replacement ...................................................................................... 13
Blade Sharpening ................................................................................................ 13-14
Wheel Drive Control Adjustment ............................................................................ 14
Driven and Drive Disc Service ................................................................................ 16
Cleaning Drive Disc and Driven Disc ................................................................. 15
Drive Spring Repair/Replacement ...................................................................... 16
Driven Disc Adjustment ................................................................................. 16-16
Driven Disc Replacement .............................................................................. 16-17
Driven Disc Bearing Replacement ..................................................................... 17
Hex Shaft Bearing Replacement ........................................................................ 18
Belt Service .......................................................................................................... 18-19
Engine Drive Belt Replacement .................................................................... 18-19
Transmission Poly-V Belt Replacement ............................................................ 19
TROUBLESHOOTING ..................................................................................................... 20
SERVICE SCHEDULE ...................................................................................................... 21
MaintenancelReplacement Parts ............................................................................ 21
WARRANTY ..................................................................................................................... 22
PRIMARY MAINTENANCE ......................................................................................... 23-26
PRODUCT REGISTRATION FORM ................................................................................ 27
!
! IMPORTANT ! I
The pictures and illustrations in this manual are provided for reference only and may differ
I
from your spec f c mode. Contact your oca SNAPPER dea er f you have quest ons.
4
Section 1
ROPE
START
HANDLE
L
- FAMILIARIZATION
j .............................................................................. •
MID=HANDLE
KNOB
FUEL
FILLER
CAP
KNOB
REAR HEIGHT
ADJUSTMENT
LEVER
REAR WHEEL
J
f_
GRASS BAG .........................................................................
ADAPTER
PRIMER BULB .....................
(SEE INSET)
BLADE
CONTROL
BRIGGS & STRATTON ENGINE
PRIMER BULB -
LOCATED AT FRONT OF ENGINE
ENGINE AIR
.............................................FILTER COVER
_/_ MUFFLER
MOWER
DECK
FRONT HEIGHT
ADJUSTMENT
LEVERS
FRONT WHEEL
FIGURE 1.1
1.1 INTRODUCTION
This manual has been prepared for the operators of
the SNAPPER WALK BEHIND MOWERS. Its
purpose, aside from recommending operating and
routine service requirements, is to promote safety
through the use of accepted operating practices.
Read, Understand and Follow the "IMPORTANT
SAFETY INSTRUCTIONS" on Pages 2 & 3 of this
manual and all safety messages on the mower and
attachments before operating the mower.
1.2 NOMENCLATURE
The nomenclature drawing above, Figure 1.1, shows
the essential parts of the SNAPPER WALK BEHIND
MOWERS. It is recommended that all operators of
the mower become thoroughly familiar with the
controls, parts and operation of the mower before
operating. Specific details involving the engine are
found in the separate engine owner's manual. Study
these manuals before operating and keep both
handy for future reference.
5
Section 2 - OPERATING INSTRUCTIONS
2,1 PRE-START CHECK LIST
Make the following checks and perform the service
required before each start-up.
2.1.1. Check guards, deflectors, grass bag, adapter
and covers to make sure all are in place and securely
tightened.
2.1.2. Check blade control and wheel drive control
to insure they work freely. See Figure 2.1.
WHEEL
DRIVE
CONTROL
/
BLADE
CONTROL
FIGURE 2.1
2.1.3. Check cutting height. Adjust to desired height.
2.1.4. Check engine oil and add oil as needed to bring
level up to the full mark. Refer to Engine Owner's
Manual for oil specifications. See Figure 2.2.
2.1.6. Clean exterior surfaces of cutting deck and
engine of any accumulation of spilled fuel, dirt, grass,
oil, etc. Keep engine air intake screen and cooling
fins clear at all times.
2.2 STARTING & OPERATION
2.2,1. ENGINE & BLADE
The engine speed is preset and is not adjustable. A
primer is provided to assist in starting a cold engine.
1. Push primer bulb three times to start a cold
engine. NOTE: The primer should not be
required to restart a hot engine. See Figure 2.3.
NOTE: Stop the engine (and blade) by releasing the
blade control.
FOR ENGINES
EQUIPPED
WITH PRIMER
BULB
E
#
FIGURE 2.3
2. Pull blade control against handle. See Figure 2.1.
3. Pull rope start handle to crank engine.
4. After engine starts, allow a brief warm-up until
engine runs smooth.
FIGURE 2.2
2.1.& Add fuel to tank after pushing the mower
outside where fumes can safely dissipate. Make sure
cap is tightened after refueling. Refer to Engine
Owners Manual for specifications.
6
Section 2 - OPERATING INSTRUCTIONS
2.2 STARTING & OPERATION
WARNING
Stop engine and mower blade by releasing the blade
contro before adjust ng ground speed.
2.2.2, PROPELLING MOWER
(Self Propelled Model Only)
1. Stop engine and mower blade by releasing
the blade control before adjusting ground
speed. Move ground speed control to the desired
speed position. See Figure 2.4.
2. Start engine. Refer to Section "Starting &
Operation".
3. Move wheel drive control against handle to
engage wheel drive and propel mower forward. See
Figure 2.1.
MOVE GROUND SPEED
CONTROL TO SIX SPEED
POSITION
SIXTH SPEED
POSITION
2.3
2,4
FIGURE 2.4
STOPPING
Stop engine and blade by releasing the blade
control. Stop forward motion of mower by releasing
the wheel drive control.
HANDLE HEIGHT ADJUSTMENT
The height of the mower handle can be adjusted as
follows:
1. Loosen the lower nuts on each lower handle as
shown in Figure 2.5.
2. Move upper mower handle up or down until the
desired position is achieved.
3. Tighten the lower nuts on each lower handle to
maintain desired position.
HIGHER
LOWER
HANDLE
LOWER
LOOSEN LOWER
NUTS ON EACH
LOWER HANDLE
i !
FIGURE 2,5
2,5 CUTTING HEIGHT ADJUSTMENT
1, Pull the height adjusting latch outward and move
to desired cutting height. See Figure 2.6.
IMPORTANT: Move rear height adjustment latch for rear
wheel adjustment to correspond with raising or lowering
the front wheels to maintain the level of the deck.
D LOWEST CUTTING
FIGURE 2,6
HEIGHT
2. Set all wheels at the same cutting height. The
highest cutting position is Notch 6. The lowest
cutting position is Notch 1.
7
Section 2 - OPERATING INSTRUCTIONS
WARNING
DO NOT attempt any maintenance, adjustments or
service with engine and blade running. STOP engine
and blade. Disconnect spark plug wire and secure
away from spark plug. Engine and components are
HOT. Avoid serious burns, allow sufficient time for
all components to cool.
2,6 RECYCLING OPERATION
NOTE: For best recycling results, cut up to a maximum
of 1/3 of grass blade length and recycle ONLY when
grass is dry.
1. Set all wheels in the highest cutting position
(Notch 6).
2. Move engine speed control to "FAST" (Rabbit)
position.
3. Move ground speed control to slowest speed
setting.
4. Proceed mowing slowly. If grass is very dense,
lower each rear wheel latch one notch lower than
the front wheel latches to improve recycling
performance.
INSTALLATION of GRASS BAG ADAPTER
(Optional Accessory on Some Models)
STEP 1: Install the grass bag adapter and secure to the
side and top of the deck with the two nuts provided with
the machine. Slot in front edge of adapter must be under
nut located on top of deck. See Figure 2.7.
INSTALLATION of RECYCLING PLUG
(Optional Accessory on Some Models)
STEP 1: Once adapter has been installed, recycling may
be desired. Insert recycling plug completely and securely
into adapter. Install grass bag. See Figure 2.8.
PLUG
INSERT RECYCLING PLUG
COMPLETELY AND SECURELY
INTO ADAPTER. INSTALL
GRASS BAG.
FIGURE 2,8
SECURE
WITH NUTS
ADAPTER
FIGURE 2,7
SECURE ADAPTER
TO DECK WITH NUTS
WARNING
DO NOT operate without entire Grass Bag or guard
in place. Grass Bag components are subject to
deterioration during normal use, Inspect frequently
and replace worn or damaged components
immediately.
8
Section 2 - OPERATING INSTRUCTIONS
WARNING
DO NOT attempt any maintenance, adjustments or
service with engine and blade running. STOP engine
and blade. Disconnect spark plug wire and secure
away from spark plug. Engine and components are
HOT. Avoid serious burns, allow sufficient time for
all components to cool.
2,7 INSTALLATION of GRASS BAG
(Slide Closure Type, Optional Accessory on
Some Models)
InstaII grass bag as shown. Adapter must be
installed first, before grass bag can be installed.
A. Install the top wire to the grass bag. Tie the bag
slider to the top wire. Fold bag opening into a "Z"
and pull bag into slider. See Figure 2.9.
BAG
LOWER HANDLES
HANDLE
FIGURE 2.10
ADAPTER
FLANGE
"Z"FOLD BAG
HOOK BAG HANDLE
OVER LOWER
HANDLES
FIGURE 2,9
B. Position grass bag between handles. See Figure
2.10. Install grass bag by sliding connector over
flange of adapter. Attach grass bag hooks over
middle handle cross bar. See Figure 2.11.
SLIDE CONNECTOR
OVER END OF
ADAPTER FLANGE
FIGURE 2.11
WARNING
DO NOT operate without entire Grass Bag or guard
in place. Grass Bag components are subject to
deterioration during normal use, Inspect frequently
and replace worn or damaged components
immediately.
9
Section 2 - OPERATING INSTRUCTIONS
WARNING
DO NOT attempt any maintenance, adjustments or
service with engine and blade running. STOP engine
and blade. Disconnect spark plug wire and secure
away from spark plug. Engine and components are
HOT. Avoid serious burns, allow sufficient time for
all components to cool.
2.8 INSTALLATION of DISCHARGE DEFLECTOR
(Optional Accessory on Some Models)
Install discharge deflector if discharging is desired. Grass
bag and bag adapter must be removed.
A, Remove grass bag from handle and bag adapter.
See Figure 2.12.
B, Remove front and rear nuts attaching bag adapter
to deck. See Figure 2.12.
SLIDE
INSTALL DEFLECTOR
DISCHARGE SLOT
DEFLECTOR UNDER NUT
FIGURE 2.13
INSTALL
NUTS
BAG
FROM HANDLE AND
BAG ADAPTER
2.9 INSTALLATION of RECYCLING COVER
(Optional Accessory on Some Models)
It will be necessary to remove bag adapter and grass bag or
discharge deflector before installing recycling cover. See
previous section for instructions. Install the recycling cover
and secure to the side and top of the deck with the two nuts
provided on the machine. Slide top portion of cover under
nut secured to the deck. See Figure 2.14.
RECYCLING
COVER
REMOVE NUTS
FIGURE 2.12
C, Install discharge deflector and secure to deck
using hardware just removed in Step A. Slot in front
edge of discharge deflector must be under nut as
shown and both bolts protruding through holes in the
side of the deflector. Secure nuts to the side of
deflector. Tighten nuts securely. See Figure 2.13.
INSTALL RECYCLING
COVER TO THE DECK
USING THE TWO NUTS
FIGURE 2.14
WARNING
DO NOT operate without entire Grass Bag or guard
in place. Grass Bag components are subject to
deterioration during normal use. Inspect frequently
and replace worn or damaged components
immediately.
10
Section 3 - MAINTENANCE
3.1
3.2
INTRODUCTION
To retain the quality of the mower, use genuine
SNAPPER replacement parts only. Contact a local
SNAPPER dealer for parts and service assistance.
For the correct part or information for a particular
mower, always mention model and serial number.
SERVICE - AFTER FIRST 5 HOURS
3.2.1. CHANGE ENGINE OIL
WARNING
DO NOT attempt any maintenance, adjustments or
service with engine and blade running. STOP engine
and blade. Disconnect spark plug wire and secure
away from spark plug. Engine and components are
HOT. Avoid serious burns, allow sufficient time for all
components to cool.
1. Refer to Engine Manual for proper oil
specifications and procedures.
2. For simplest/cleanest oil change, loosen lower
handle wing nuts and stand mower up on lower
handle as shown in Figure 3.1. Drain oil through
dipstick tube into a container.
IMPORTANT: Drain fuel tank before tipping mower.
3.2.2. CHECK GREASE LEVEL IN TRANSMISSION
1. Remove transmission fill plug. See Figure 3.2.
2. If Iiauid grease IS NOT visible on the input gear (the
small gear below the plug hote), add an amount, to
cover gear, of Snapper "00" grease. See Figure 3.2.
r /
t*
FILL
FIGURE 3.2
NOTE: Snapper "00" Grease (Part No. 2-9443) is available
at your SNAPPER dealer.
(Continued on Next Page)
FIGURE 3.1
11
Section 3 - MAINTENANCE
3.2.2. CHECK GREASE LEVEL IN TRANSMISSION
NOTE: Do not spill grease or oil on surface of drive disc.
See Figure 3.3.
3. Reinstall transmission plug.
4, Check grease level after each 25 hours of
operation.
KEEP DRIVE DISC CLEAN !
q
FIGURE 3.3
WARNING
DO NOT attempt any maintenance, adjustments or
service with engine and blade running. STOP engine
and blade. Disconnect spark plug wire and secure
away from spark plug. Engine and components are
HOT. Avoid serious burns, allow sufficient time for
all components to cool. Wear heavy leather gloves
when handling or working around cutting blades.
Blades are extremely sharp and can cause severe
injury.
IMPORTANT: Drain fuel tank before tipping mower.
DO NOT tip machine with carburetor or spark plug down.
Oil from crankcase will saturate the air filter and cause the
engine to be hard to start or not start at all. If
contamination does occur, the air filter will have to be
replaced.
3.2,3. CHECK MOWER BLADE
1. Disconnect spark plug wire and secure end away
from plug.
2. Tilt mower up on its rear wheels for access to
the blade cap screw. Do not tilt mower with spark
ptug or carburetor down. See Figure 3.4.
3. Check torque of blade retaining cap screw.
Recommended torque should be 40 ft. Ibs. See
Figure 3.4.
4. Check blade for sharpness, wear and damage.
Refer to Section "BladeWear Limits".
3,2.4, CHECK ENGINE DRIVE BELT
1. Visually check engine drive belt for cracking,
fraying, severed or belt strands exposed. If worn or
damaged, replace belt before operating mower.
3,2,5. CHECK TRANSMISSION POLY-V BELT
1. Visually check poly-v belt for cracking, fraying,
severed or belt strands exposed. If worn or damaged,
replace belt before operating mower.
RECOMMENDED
BLADE RETAINING
CAP SCREW TORQUE
VALUE SHOULD BE
40 FT. LBS.
FIGURE 3.4
3.3 SERVICE-ANNUALLY
Perform all maintenance as described in the "Service
Schedule" section of this manual.
3.3.1. Engine
Service engine according to engine owner's manual.
3.3.2. Air Filter
Refer to engine owner's manual for service instructions.
3.3.3. Engine Oil
Refer to engine owner's manual for service instructions.
3.4 STORAGE PROCEDURE
Refer to the Engine Owner's Manual for directions
regarding engine storage preparations. Prepare the
mower for "end of season" storage as follows:
1. Drain fuel from fuel tank and let engine run until
all fuel isout of the carburetor.
2, Disconnect and remove the spark plug wire
away from spark plug before any other
preparations are made!
3. Tape all openings dosed to prevent spraying
water into exhaust or air intakes during washing.
4. Tilt mower up on its rear wheels and thoroughly
clean the underside of the deck. Do not tilt mower
with spark plug or carburetor down. Scrape away
any accumulation of grass with a putty knife and or
wire brush.
5. Lubricate all exposed metal with a light coating
of oil to prevent corrosion.
6. Loosen handIe knobs. Carefully fold the handles
forward, "flexing" the control cables to prevent cable
damage.
7. Store the mower in a shed or other dry area,
protected from weather.
12
Section 4 - ADJUSTMENTS & REPAIR
WARNING
DO NOT attempt any maintenance, adjustments or
service with engine and blade running. STOP engine
and blade. Disconnect spark plug wire and secure
away from spark plug. Engine and components are
HOT. Avoid serious burns, allow sufficient time for all
components to cool. Wear heavy leather gloves when
handling or working around cutting blades. Blades
are extremely sharp and can cause severe injury.
4.1 MOWER BLADE REPLACEMENT
4,1,1, STANDARD BLADE WEAR LIMIT
1. Inspect blade frequently for signs of excessive wear
ordamage. See Figure 4.1.
NEW _/*'_
BLADE WEAR LIMIT
F (NOTCH STARTS)
_L DANGEROUS
;°WEt w%tC2
FIGURE 4.1
4,1,2, NINJA BLADE WEAR LIMIT
1. Inspect blade frequently for signs of excessive wear
ordamage. See Figure 4.2.
NEW BLADE
WEAR LIMIT. CRACKS
OR NOTCHES BEGIN
ON TIP.
2. Replace the blade if it is badly chipped, bent,
noticeably out of balance or has cracks or notch in
either tip. See Figure 4.1 & 4.2. Replace with new
blade.
I= WARNING
DO NOT use a cutting blade that shows signs of I
excessive wear or damage. Refer to Section l
"MOWER BLADE REPLACEMENT" for proper bladel
inspection and service procedures. I
4,1.3, BLADE SHARPENING
1, Disconnect spark plug wire and secure end away
from plug.
IMPORTANT: Drain fuel tank before tipping mower.
DO NOT tip machine with carburetor or spark plug down.
OiI from crankcase will saturate the air filter and cause the
engine to be hard to start or not start at all. If
contamination does occur, the air filter will have to be
replaced.
2. Tilt mower up on its rear wheels.
3. Remove blade. See Figure 4.3.
MAKESURETHAT
BLADE HUBIS
BLADE SEATEDBETWEEN
_ __HUB FLANGES
-1. --CAPSCREW
FIGURE 4.3
(Continued on Next Page)
FIGURE 4.2
13
Section 4 - ADJUSTMENTS & REPAIR
WARNING
DO NOT attempt any maintenance, adjustments or
service with engine and blade running. STOP engine
and blade. Disconnect spark plug wire and secure
away from spark plug. Engine and components are
HOT. Avoid serious burns, allow sufficient time for all
components to cool,
4.1.3, BLADE SHARPENING
4. Sharpen blade on a grinding wheel at an angle of
22 to 28 degrees. DO NOT sharpen blade beyond
original cutting edge. See Figure 4.4.
DO NOT SHARPEN
BEYOND ORIGINAL
CUTTING EDGE
CLUTCH CABLE
VINYL SPRtNG
1116" TO 1/8"
CLEARANCE
SPRING
LOWER
SPRtNG
:LUTCH
EYE
HOOK
=CABLE
CLUTCH CABLE EYE
END VIEW OF
BLADE ASSEMBLY
ORIGINAL CUTTING EDGE
FIGURE 4.4
5. Check blade for balance. If necessary, correct
balance by grinding heavy end of blade.
6. Reinstall blade. See Figure 4.3. Check torque of
blade retaining cap screw. Recommended torque
should be 40 ft. Ibs.
NOTE: The following sections 4.2 through
4.4 are for self-propelled models only.
4.2 WHEEL DRIVE CONTROL ADJUSTMENT
1. The wheel drive control is properly adjusted when
there is 1/16" to 1/8" clearance between the inside of
the spring hook and the inside of the clutch cable
eye with the wheel drive control released. See
Figure 4.5.
FIGURE 4.5
2. To adjust, unhook upper spring from cable eye
and rotate spring in direction required to extend or
shorten spring length.
3. Rehook upper spring to cable eye and check
clearance. Repeat procedure if required.
NOTE: The vinyl spring cover should be kept over the
spring at all times except for adjustments.
4. If the wheel drive control fails to return quickly to
the "OFF" position when released, check for binding
at the cable holdings located on the side of the right
handle. The upper clip should be located 2" below
the upper knob; the lower clip should be 4" above
the lower knob. The cable should slide freely with
the clips installed at these locations.
14
Section 4 - ADJUSTMENTS & REPAIR
WARNING
DO NOT attempt any maintenance, adjustments or
service with engine and blade running. STOP engine
and blade. Disconnect spark plug wire and secure
away from spark plug. Engine and components are
HOT. Avoid serious burns, allow sufficient time for all
components to cool,
4.3 DRIVEN AND DRIVE DISC SERVICE
If the mower does not propel itself properly, See
Figure 4.6. Check for the following problems:
DRIVEN DISC
& RUBBER
RING
SPRING
ENGINE
DRIVE
BELT
DRIVE -
DISC
FIGURE 4.7
FIGURE 4.6
1. Grease on drive disc causing slippage.
2. Broken or disconnected drive spring.
3. Driven disc is out of adjustment.
4. Driven disc rubber is worn - does not contact
drive disc properly.
5. Worn Poly-V Belt or engine drive belt.
NOTE: If any of the above (1 thru 5) are causing
problems, service as follows:
4.3.1. Cleaning Drive Disc & Driven Disc
If oil or grease on the drive disc or driven disc is
causing slippage, clean discs as follows:
1. Wipe away any oil or grease with a clean cloth.
2. Use either an approved grease solvent or hot,
soapy water to clean drive disc or driven disc.
3. Rinse components with clean water.
4. Dry components with a clean cloth.
4.3.2. Drive Spring RepairlReplacement
If drive spring is loose, reconnect as shown in Figure
4.7. If spring is broken, replace with new spring.
IMPORTANT: If machine drive system continues
slipping see Trouble Shooting section.
4,3,3, Driven Disc Adjustment
If the drive disc and driven disc are cIean and the
mower drive is not making correct drive disc and driven
disc contact, adjust the driven disc as follows:
1, Place ground speed control in the number six
speed position. See Figure 4.8.
MOVE GROUND SPEED
CONTROL TO SIX SPEED
POSITION
SIXTH SPEED
POSITION
FIGURE 4.8
(Continued on Next Page)
15
Section 4 - ADJUSTMENTS & REPAIR
WARNING
DO NOT attempt any maintenance, adjustments or
service with engine and blade running. STOP engine
and blade. Disconnect spark plug wire and secure
away from spark plug. Engine and components are
HOT. Avoid serious burns, allow sufficient time for
all components to cool.
4.3.3. DRIVEN DISC ADJUSTMENT
(Continued From Previous Page)
2. Remove driven disc spring from driven disc
assembly. Loosen connector hex nut. See Figure
4.9.
SLIDE DRIVEN
DISC ASSEMBLY
TOWARD
OUTSIDE EDGE
=TRANSFER
ROD
118" MEASUREMENT TO
OUTSIDE EDGE OF
DRIVE DISC
DRIVE
DRIVEI_
DISC
SPRING -
TRANSFER
ROD
ASSEMBLY
OUTSIDE
EDGE
FIGURE 4.10
4.3.4. Replacing Rubber Driven Disc
If the rubber is badly chunked or worn it must be
replaced. Install new Driven Disc as follows:
1. Using a small flat blade screwdriver, free the clip
from the transfer rod. Then remove the transfer rod
from the clip and the speed control rod. See Figure
4.11.
HEX NUT
FIGURE 4.9
3, Slide driven disc assembly over to 1/8" from
outside edge of drive disc. Maintaining the 1/8"
measurement, remove any looseness from the
linkage. This can be done by holding the transfer
rod and applying pressure to the left (as viewed
from operators position). Then retighten the
connector hex nut securely. See Figure 4.10. Move
ground speed control to the first speed position,
then back to the sixth speed position. Recheck the
1/8" measurement described previously. Reinstall
driven disc spring to driven disc assembly.
CONNECTOR
CLIP
FIGURE 4.11
SPEED
CONTROL
ROD
16
Section 4 - ADJUSTMENTS & REPAIR
WARNING
DO NOT attempt any maintenance, adjustments or
service with engine and blade running. STOP engine
and blade. Disconnect spark plug wire and secure
away from spark plug. Engine and components are
HOT. Avoid serious burns, allow sufficient time for
all components to cool.
4.3.4. Replacing Rubber Driven Disc
(Continued from previous page)
2. Using needle nose pliers, unhook the drive
spring and slide the driven disc assembly off the
hex shaft. See Figure 4.12.
3. Remove the two snap rings which secure the
rubber driven disc to the driven disc assembly. See
Figure 4.13.
4. Install new rubber driven disc onto driven disc
assembly with retaining rings.
5. Reverse above procedures for reassembty and
installation of driven disc assembly.
o
FIGURE 4,12
4.3.5. Replacing Bearing In Driven Disc Assembly
IMPORTANT: The bearing, on these "M" series
machines, is staked into the thrust plate. The bearing will
have to be driven out with a mallet and a large punch. A
new bearing with four retaining screws will have to be
purchased to replace existing bearing.
If the driven disc bearing requires replacement,
remove the driven disc assembly and replace
bearing as follows:
1. Using a small flat blade screwdriver, free the clip
from the transfer rod. Then remove the transfer rod
from the clip and the speed control rod. See Figure
4.11.
2, Using needle nose pliers, unhook the drive
spring and slide the driven disc assembly off the
hex shaft. See Figure 4.12.
3. Remove both snap rings that secure rubber
driven disc hub to thrust plate. See Figure 4.13.
4. Slide the rubber driven disc hub out of the
bearing.
5. Drive out existing bearing.
6. Install new bearing and secure to thrust plate
with four retaining screws. Tighten screws securely.
7. Reassemble components in reverse order.
INSTALL NEW
DRIVEN DISC
\
RINGS
FIGURE 4,13
17
Section 4 - ADJUSTMENTS & REPAIR
WARNING
DO NOT attempt any maintenance, adjustments or
service with engine and blade running. STOP engine
and blade. Disconnect spark plug wire and secure
away from spark plug. Engine and components are
HOT. Avoid serious burns, allow sufficient time for all
components to cool.
4.3.6. Replacement Of Bearing On Pulley End Of Hex
Shaft
To replace the bearing on the pulley end of the hex
shaft, proceed as follows:
1. Hold the hex shaft with an adjustable wrench
held next to the pulley.
2. Remove the 3/8" hex lock nut, which is located at
the end of the hex shaft on the outside of the right
wheel bracket. See Figure 4.14.
3. Remove holder, O-ring and bearing.
4. Install new bearing.
8. Carefully install new O-ring over the outside of the
new bearing.
6. Install bearing holder and secure with screws.
7. Install 3/8" hex lock nut.
3/8
LOCK
NUT
BALL
BEARING
HOLDER
FIGURE 4.14
4.4 BELT SERVICE
On self-propelled mowers, the engine belt transmits
power from engine to drive disc. The drive disc powers
the poly-v belt, which engages the transmission that
powers the rear wheels. Should these belts become
worn, they could cause slippage which would impair
mower performance. The condition of the engine belt
and poly-v belt should be checked after every 25 hours
of mower operation.
4.4.1. Engine Drive Belt Replacement
(Stretch Type Belts)
1. Empty the fuel tank.
2. Note the belt routing in Figure 4.15. There is no
idler pulley on these models to disconnect. See Figure
4.15.
DRIVE BELT
ENGINE DRIVE
I/ -
tl
DRIVE DISC
TOP VIEW OF STRETCH TYPE BELT ROUTING
FIGURE 4.15
18
Section 4 - ADJUSTMENTS & REPAIR
WARNING
DO NOT attempt any maintenance, adjustments or
service with engine and blade running. STOP engine
and blade. Disconnect spark plug wire and secure
away from spark plug. Engine and components are
HOT. Avoid serious burns, allow sufficient time for
all components to cool. Wear heavy leather gloves
when handling or working around cutting blades.
Blades are extremely sharp and can cause severe
injury. DO NOT use a cutting blade that shows signs of
excessive wear or damage.
4.4.1. Engine Drive Belt Replacement
(Stretch Type Belts)
(Continued From Previous Page)
IMPORTANT: Drain fuel tank before tipping mower.
DO NOT tip machine with carburetor or spark plug down.
Oil from crankcase will saturate the air filter and cause the
engine to be hard to start or not start at all. If
contamination does occur, the air filter will have to be
replaced.
3. Remove the driven disc. Refer to Section
"Replacing Rubber Driven Disc Ring" for driven disc
assembly removal procedure.
4, Tilt mower up on its rear wheels and remove
blade and blade hub. Assistance from another
person may be necessary to hold mower in the
tilted position.
5. Hold the slotted end of the drive disc bolt with a
screwdriver and remove the nut and internal tooth
lock washer. See Figure 4.16.
6, Remove the belt cover located under deck.
7, Lift the drive disc up and remove worn belt.
8. Loop one end of new belt over engine pulley and
insert the other end through slot in deck. See Figure
4.15.
PULLEY POSITION
9, Loop the belt around the pulley on the bottom of
the drive disc.
10. Reinstall drive disc and retaining hardware.
IMPORTANT: 1) The square shoulder of the drive
disc bolt must fit into the square hole of the
bushing. 2) The square end of bushing must fit into
the bracket slot.
11. Reinstall belt cover and tighten bolts securely.
12. Reinstall blade hub and cutter blade.
Recommended torque for blade cap screw is 40 ft. Ibs.
4,4,2, Transmission Poly-V Belt Replacement
1. Remove the driven disc. Refer to Section
"Replacing Driven Disc Rubber Ring" for procedure.
2. Note the routing of the old belt around the three
pulleys before removing it. See Figure 4.17.
3. Place new Poly-V Belt over end of hex shaft and
onto driven pulley.
4. Work belt onto top of idler pulley.
5. Twist belt sideways and pull it upward between
the differential bracket and drive pulley and then
down into the pulley groove. Make sure the Poly-V
Belt is above belt guide. See Figure 4.17.
IDLER
DRIVE
PULLEY
BELT GUIDE DRIVEN
PULLEY
SLOT IN END _ DRIVE DISC
OF DRIVE DISC ....
BOLT
HING
DECK BRACKET
(PARTIALLY SHOWN)'_ { BOLT RETAINER
ROUTING OF POLY-V-BELT
FIGURE 4.17
INTERNAL TOOTH
•--,--,--" LOCKWASHER
NUT
FIGURE 4.16
19
TROUBLESHOOTING
PROBLEM PROBABLE CAUSE CORRECTIVE ACTION
Engine Will Not Start 1. Fuel tank empty. 1. Fifl fuel tank with fresh fuel.
Using Recoil Starter 2. Engine needs choking or priming. 2.Choke/Prime. Check Engine Manual for
Instructions.
3. Spark plug wire disconnected. 3. Place spark plug wire onto spark plug.
Engine Stalls or Stops 1. Blade control is released or is not being held securely 1. Btade control should be held securely against
After Running against handle, handle at all times during operation of mower.
2. Fuel tank empty. 3. Fifl with fuel to proper level.
3. Engine air pre-cieaner and or air cleaner dirty. 4. Clean free of all debris.
4. Spark plug defective or gap set improperly. 5. Service spark plug.
5. Water, debris or stale fuel in fuel system. 6. Drain and clean fuel system.
Engine Loses Power 1. Engine air pre-cieaner or air cleaner dirty 1. Clean or replace filters.
2. Spark plug faulty. 2. Service spark plug
3. Water, debris or stale fuel in fuel system. 3. Drain and clean fuel system.
Excessive Vibration 1. Damaged, out of balance or bent mower blade. I. Service mower blade.
2. Loose blade components. 2. Service and tighten {oose parts.
3. Loose or missing air lift (if equipped). 3. Replace air lifts. Tighten to proper torque.
4. Lumpy or frayed belt 4. Replace belt.
Mower Will Not Move I. Damaged transmission 1. Contact authorized SNAPPER dealer.
Loss Of Traction 2. Engine drive belt broken requires replacement 2. Replace engine drive belt.
3. Engine drive belt has jumped off of the putiey 3. Reinstall belt onto puttey. Check for damage.
(Self-Propelled Models) 4. Peiy V belt is broken. 4. Replace Poiy-V belt.
5. Peiy V belt has jumped off of the pulley 5. Reinstall belt onto puttey. Check for damage.
6. Driven disc stipping 6. Clean or replace driven disc.
7. Broken or loose differential link boit 7. Tighten or replace link bolt.
Cutting Grass I. Cutting height too low or high. 1. Adjust cutting height.
Improperly 2. Engine speed too stow. 2. Move engine speed control to "FAST" position.
3. Forward ground speed too fast. 3. Move ground speed control to a stower speed.
4. Terraced cut, side to side. 4. Adjust height of cut with height adjust levers.
5. Excessive deck pitch, front to rear. 5. Adjust height of cut with height adjust levers.
6. Cutting blade dull or damaged. 6. Sharpen cutting edges or replace blade.
Poor Grass Discharge I. Engine speed too stow. 1. Move engine speed contro{ to "FAST" position.
2. Forward speed too fast. 2. Move ground speed control to a stower speed.
3. Grass is wet. 3. Mow when grass is dry.
4. Excessively worn or damaged blade. 4. Service mower blade.
5. Build up of grass clippings and debris under deck. 5. Clean deck.
6. Improper blade installed on deck. 6. install proper SNAPPER blade.
7. Blade installed improperly on deck. 7. install blade properly.
Oil Leaking I. Leaking engine case. 1. Contact authorized SNAPPER dealer.
2. Check and tighten drain plug.
3. Make sure dip stick or oil filler cap is securely
in place.
20
SERVICE SCHEDULE
ITEM
Engine Oil
SERVICE PERFORMED REF.
Check Oil Level Page 6
Initial Oil Change Page 9
Periodic Oil Change Page 10
EACH
USE
X
5 26 60 100 EACH
HRS HRS HRS HRS SEASON
Air Pre-Cleaner Clean Sponge Element
Air Cleaner Clean or Replace
Engine Manual
& Page 10
Engine Manual
X**
X**
Spark Plug Replace Engine Manual
X
Engine Cooling
System
Drive Belts
Mower Blade
Mower Deck
Transmission
Grease
Clean Shroud & Fins Engine Manual
X**
Check For Wear And Page 16
Tension
Check For Wear, Damage Page 11-12
& Replacement
Clean Debris Page 10
Accumulation
Check Grease Level Pages 9
X
X
X X
X
Periodic Grease Check Pages 10
Drive Disc Check for Wear Damage Page 12-15
& Replacement
* Change oil every 25 hours when operating under heavy load or high temperatures.
**Clean more often under dusty conditions or when air debris is present
X
4.6 MAINTENANCE/REPLACEM ENT PARTS
X
X
X
MAINTENANCE PARTS
Blade Control Cable
Clutch Pull Cable (Propelled Models)
Cutter Blade (Mulching)
Cutter Blade (Ninia - Quad Edge)
Wheel Drive Pulley to Transmission Pulley Belt
Engine to Drive Disc Belt
Rubber Drive Tire
Parts Manual for 21" Steel Deck Walk Behind Mower
"M" Series 17
7-2933
7-2932
4-1939
2-6407
1-2364
4-6784
4-1866
06136
21
3 YEAR LIMITED WARRANTY
For three (3) years from purchase date for the original purchaser's residential, non-commercial use, SNAPPER, through
any authorized SNAPPER dealer will replace, free of charge (except for taxes where applicable), any part or parts found
upon examination by the factory at McDonough, Georgia, to be defective in material or workmanship or both.
For ninety (90) days from purchase date for the original purchaser's commercial, rental, or other non-residentia! use,
SNAPPER, through any authorized SNAPPER dealer will replace, free of charge, any part or parts found upon
examination by the factory at McDonough, Georgia, to be defective in material or workmanship or both.
AiI transportation costs incurred by the purchaser in submitting material to an authorized SNAPPER dealer for
replacement under this warranty must be paid by the purchaser.
This warranty does not apply to engines and their components, and batteries, as these items are warranted separately.
This warranty does not apply to parts that have been damaged by accident, alteration, abuse, improper lubrication,
normal wear, or other cause beyond the control of SNAPPER. This warranty does not cover any machine or component
)art that has been altered or modified changing safety, performance, or durability.
_atteries have a one (1) year prorated warranty period with free replacement if required during the first ninety (90) days
from the original purchase date. SNAPPER will not be responsible for any installation cost incurred. The battery warranty
only covers original equipment batteries and does not cover damage to the battery or machine caused by neglect or
abuse, destruction by fire, explosion, freezing, overcharging, improper maintenance, or use of improper electrolyte.
There is no other express warranty.
DISCLAIMER OF WARRANTY
Implied warranties, including those of merchantability and fitness for a particular purpose, are limited to three
(3) years from purchase date for the original purchaser's residential or other non-commercial use, and ninety
(90) days from purchase for the original purchaser's commercial, rental or other non-residential use, and to the
extent permitted by law, any and all implied warranties are excluded. This is the exclusive remedy. Liabilities for
consequential damages, under any and all warranties are excluded.
Some states do not allow limitations on how long an implied warranty lasts, or do not allow the exclusion or
limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you.
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
WARNING: THE USE OF REPLACEMENT PARTS OTHER THAN GENUINE SNAPPER PARTS MAY IMPAIR THE
SAFETY OF SNAPPER PRODUCTS AND WILL VOID ANY LIABILITY AND WARRANTY BY SNAPPER
ASSOCIATED WITH THE USE OF SUCH PARTS.
IMPORTANT: Pieasefill outthe attached SNAPPER Product Registration Card immediatelyand malt to:
Snapper's Product Registration Center, P.O. Box 1379, McDonough, Georgia 30253
22
PRIMARY MAINTENANCE
an
illustration of
how dirt can
dama
& how
naintenance
can protect it!
Snapper uses the best avail-
able engines and components
In their products In order to _=
provide long, satisfactory
service. However, proper • =
care Is essential In ""
prolonging engine life. Dirt
Is your engine's enemy
number 11
The engine on your Snapper
product spends Its entire life
operaUng close to the ground at
high speed cresting a virtual
storm of dust and dlrtl
23
PRIMARY MAINTENANCE
gulp about 12,000,
gallons of air for
every gallon of f=
used. Because of
Its working environ-
ment, the air available
to your Snapper engine Is "
heavily saturated with air-
borne dirt particles.
that dirt will
quickly ruin an engine,
manufacturers equip their
engines with extremely
efficient air cleaners to
filter out the harmful dirt,
As the dirt penlclse are stopped,
they build up and begin to clog
the outside of the filter. This
reduces the amount of air
available to the engine and causes
an over-rich fuel mixture which re-
suite In the following adverse
effects:
An Improperly serviced, dirt
clogged air cleaner will:
Damage caused by a poorly serviced air
cleaner Is not covered under the engine
warranties. So, save yourself unnecessary
expenses end undue aggrevatlon by kseplng
the air cleaner properly serviced at the Intervals
specified In the engine owner's manual.
It doesn't take long to service an air cleaner.
Follow the specific Inefmctlons In the engine
owner's manual for the type filter used. Pre-
vent dirt from falling Into the carburetor Intake
when servicing your air cleaner. Make sure
components are Installed in correct sequence
after servicing to prevent unfiltered air from
entering the engine. Some servicing hints on
Increase fuel consumption several common types are:
2. cause power loss _=m
3. result In hard starUng _L_I
4. create smoke from unburned _, •
5. _:/ucecarbonbulld-up .
Internally i _ ' ' •
6. foul spark plug electrodes I _
7. score cyllndar walls J.., -_ _ ]
8. burn valves _ ) _/_/_
g. wear out the engine pro- _ J _
maturely _ /
10, COST YOU MONEYI /_IF/_ ''_
24
PRIMARY MAINTENANCE
Air Is also needed to keep
your engine coot. Dirt, dust
& debris build up to restrict
and clog cooling air Intake
screens and fins. Clean
screens and fins at frequent
Intervals. The engine blower
housing and shrouds should
be removed at least once
each season or more often
under dry, dusty conditions
for a thorough cleaning of
/h
J) fins.
Generally, wash foam-type filters _
In a dlshwashlng detergent and I_-'_3 1 P Failure to keep external
water solution. Rinse and wring ( . '_ surfaces clean not only
dry, then saturate with oll and _ j presents fire hazards, but
squeeze out excess. Failure to "_,_// causes overheating and
re-oil this type _ter will ruin the _ resulting engine damages
engine. /f/_l_ SUChas:
V// I _\ \_ 1. distorted valve guides
Clean paper elements by tapplng ,._ _L_ \o 2. aticklngvalves
lightly. Blowlngwlthalrwlll ,r(_ T_, _ J o..3. scuffad, ecoredcyl
rupture paper elements, i_._._"_-:_ _,_ walls
_::_'_'___ __._ Oj_ 4. overspesdlng
Use a flashlight to detect clogged _@I_'._L--_.._ _'-_ r_ / 5. loss of power .
or torn paper elements - replace If I _ _ uLv'v':_I b. complete lailure or
damaged In any way. __ /_ engine.
Dirt can also be introduced
into an engine In dirty fuel
from a contaminated
container. Always use clean
fresh fuel from a clean
container to guard against
dirt, sludge and water
contamination.
Be aware that fuel breaks
down In storage and forms
will block carburetor pass-
ages. Never use fuel more
than 3 months old. Drain
tank then run the engine out
of fuel before storing during
the off-season.
An engine must also have proper lubrication.
All engines use some oil On 4-cycle engines,
CHECK OIL LEVEL BEFORE EACH START-UP.
Wipe area clean around the oll check plug or
dipstick opening to keep dirt from falling Into
the engine when checking the oil Always
check with the machine on a level surface.
On engines with dipstick, keep the level up to,
but not over, the FULL mark. When adding oil,
allow time for all of the oll to flow down the fill
tube to prevent a false full reading when the
level could actually be low and result In engine
damage.
25
PRIMARY MAINTENANCE
On 4-cyle engines with an oil level plug,
don't be tooled Into thinking the engine has
sufficient lubr/cating oil it you can see "some"
oll In the opening - the level should always be
brought up to the point of overflowing at the
top of the fill hole.
@
On 2-.cycle engines, lubrication must be
provided by an exact mixture of gasoline
and 2-cyale air-cooled engine oil A 2-cycle
engine that Is mistakenly run on straight
gasoline will be ruined In less then 5
mlnutesJ If you keep straight gasoline In
addition to pre-mlxed 2-cycle engine fuel,
be sure the containers are clearly marked
to avoid mix-up.
Snapper 2-cycle engines require a 32 to 1
mixture of gaeetlne and BIA certified TC-W
oll such all Snapper's 2-cycle engine oil
Many of the 2-cycis engine oils on the
market today make fantoetlc claims, but for
the best performance and long engine life,
always use Snapper 2-cycle all. Pre-mlx
the fuel and always shake the container
before filling the tank.
2.
3.
Change oll at regular Intervals using a a high
quality oll such as Snapper's small engine
formulated 4-cycle engine oil Refer to the
engine owner's manual for oil details.
STARTING CHECK LIST
EngineOil
Air Cleaner
Fuel Tank
4. Choke
5. Primer(on
someengines)
6. Safety Inter-
lock Switches
7. Switch&
Blade Control
8. Bparkplug
9. Throttle
control
10. Blade
11. Muffler
• To full _vet (4-cycle)
• Properlymixed with gas
(2 cycle)
• Cleanand properlyserviced
• Full fresh clean gasoline
• Fuel valveopen
• Cap vent open
• Inllnefilter clean
• Operating properly
• Used properly
• In proper position
• All wires preperlyconnected
• Switch On
• Bladecontrolproperly
positionedon walk mower
• Wire connected
• Goodconnectlon
• Startposition
• ProperlyInstalledend
torq.
• Sharpened
• Goodcondition
• Notclogged
• Grass &leaves cleanedaway
f.esda.dtoltowaltsatety!
/Instructions In safety book-|
[ / / Keep In mind that dirt Is your engine's enemy
!I Jr #/ both Internally and externallyl Internally,
I| I dirt will quickly ruin an engine and externally
r| | it will cause overhastlng and resulting lntamal
_11_ _ damages. Damage caused by Improper lubri-
_,rcation, poor air c|eaner service or overbeatlng
v _j due to dirt cannot be covered under warranty.
It only takes a few momenta to service the
engine (and equipment) on a routine basis
but the rewards will be a quick starting, re-
sponsive engine that will provide long
satisfactory service with minimum maintenance
coat. The prestart checklist in the next column
and Inetructions In your Snapper Operator's
Manual are designated to help you keep your
Snapper In top operating condition with
minimum effortt
II
26
SNAPPER PRODUCT REGISTRATION FORM
IMPORTANT: KEEP THIS INFORMATION FOR YOUR PERSONAL RECORDS
(Complete the following information on your Snapper purchase)
Model Number
Serial Number
Date of Purchase
Retailer
Retailer's Phone Number
It is very important that you register your purchase with Snapper to ensure
warranty coverage. Please mail your product registration card to:
Snapper at P.O. Box 777, McDonough, Georgia 30253.
Or you may register on line at www.snapA_er.com.
You can contact us at our web site or if you would like to speak with a Customer
Service Representative. Call us at the Snapper Customer Relations Center. For
faster service please have your Serial Number and Model Number available.
Call the Snapper Customer Relations Center at 1-800-935-2967.
Eastern Standard Time
Monday through Friday from 8am to 6pm.
Saturday from 9am to lpm.
27
Safety Instructions & Operator's Manual for
21" STEEL DECK
WALK BEHIND MOWERS
"M" MODEL
SERIES 17
IMPORTANT
Snapper products are built using engines that meet or exceed all applicable emissions requirements on
the date manufactured. The labels on those engines contain very important emissions information and
critical safety warnings. Read, Understand, and Follow all warnings and instructions in this manual, the
engine manual, and on the machine, engine and attachments. If you have any questions about your
Snapper product, contact your local authorized Snapper dealer or contact Snapper Customer Service at
Snapper, McDonough, GA. 30253. Phone: (1-800-935-2967).
_l_ WARNING
BATTERY POSTS, TERMINALS AND RELATED ACCESSORIES CONTAIN LEAD AND LEAD COMPOUNDS,
CHEMICALS KNOWN TO THE STATE OF CALIFORNIA TO CAUSE CANCER AND BIRTH DEFECTS OR OTHER
REPRODUCTIVE HARM. WASH HANDS AFTER HANDLING.
WARNING
ENGINE EXHAUST, SOME OF ITS CONSTITUENTS, AND CERTAIN VEHICLE COMPONENTS CONTAIN OR
EMIT CHEMICALS KNOWN TO THE STATE OF CALIFORNIA TO CAUSE CANCER OR OTHER
REPRODUCTIVE HARM.
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MANUAL No. 7-4942 (I.R. 6/07/02))
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