CUTTING WIDTH ENGINE OPTIONS
ENGINE HP ENGINE TYPE
SERIES DESIGNATION ENGINE MODEL
W - Model Designation 28 - 28” Cutting Deck
Thank you for buying a SNAPPER Product! Before operating your machine, 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!
09 – 09.0 HP Engine
10 – 10.0 HP Engine
11 – 11.0 HP Engine
13 – 13.0 HP Engine
15 – 15.0 HP Engine
23
- Series Designation B - Briggs Engine
K - Kohler Engine
H - Honda Engine
MANUAL No. 7-5118 (I.R. 6/21/02)
V
- Over Head Valve
E
- Electric Start
IMPORTANT SAFETY INSTRUCTIONS
WARNING: This powerf ul cutting machine is capab le of amputating hand s and feet and can throw objects that
can cause injury and damage! Failure to comply with the follow ing SAFETY instru ctions could resu lt 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 occu r 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 (even with the blade OFF).
3. DO NOT allow children or others to ride on
machine or on attachments (even with the blades
OFF). They may fall and be seriously injured.
4. DO NOT allow pre-teenage children to operate
machine.
5. ALLOW only responsible adults & teenagers with
mature judgment under close adult supervision to
operate machine.
6. DO NOT operat e blad es in reverse. ST OP BLADES.
LOOK and SEE behind an d down for children, pets
and hazards before and while backing.
7. USE EXTRA CARE when approaching blind
corners, shrubs, trees, or other objects that may
obscure vision.
PROTECTION AGAINST TIPOVERS
Slopes are a major factor related to loss-of-control
and tip-over accidents, which can result in severe
injury or death. All slopes require extra CAUTION. If
you cannot back up the slope or if you feel uneasy on
the slope, DO NOT mow it. Use extra care with grass
catchers or other attachments; these affect the
handling and the stability of the machine.
1. DO NOT operate machine on slopes exceeding 15
degrees (27% grade).
2. Exercise EXTREME CAUTION on slop es above 10
degrees (18% grade). Turn blades OFF when
traveling uphill. Use a slow speed and avoid
sudden or sharp turns.
3. DO NOT operate machine back and forth across
face of slopes. Operate up and down. Practice on
slopes with blades off.
4. AVOID uphill starts. If machine stops going uphill
or tires lose traction, turn blades OFF and back
slowly down the slope.
PROTECTION AGAINST TIPOVERS
(Continued From Previous Column)
5. STAY ALERT for holes and other hidden hazards.
Tall grass can hide obstacles. Keep away from
ditches, washouts, culverts, fences and
protruding objects.
6. KEEP A SAFE DISTANCE (at least 3 feet) away
from edge of ditches and other drop offs. The
machine could turn over if an edge caves in.
7. Always begin forward motion slowly and with
caution.
8. Use weights or a weighted load carrier in accordance
with instructions su pplied with a grass catcher. DO
NOT operate machine on slopes exceeding 10
degrees (18% grade) when equipped with grass
catcher.
9. DO NOT put your foot on the ground to try to
stabilize the machine.
10. DO NOT operate machine on wet grass. Reduced
traction could cause sliding.
11. DO NOT operate machine under any condition
where traction, steering or stability is doubtful.
PREPARATION
1. Read, understand, and follow instructions and
warnings in this manual and on the machine,
engine and attachments. Know the controls and
the proper use of the machine before starting.
2. Only mature, responsible persons shall operate
the machine and only after proper instruction.
3. Data indicates that operators age 60 and above,
are involved in a large percentage of mowerrelated 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
from machine. DO NOT smoke.
5. Practice operation of machine with BLADES OFF
to learn controls and develop skills.
6. Check the area to be mowed and remove all
objects such as toys, wire, rocks, limb s and other
objects that could cau se injury if thrown by blade
or interfere with mowing.
2
IMPORTANT SAFETY INSTRUCTIONS
PREPARATION
(Continued From Previous Page)
7. Keep people and pets out of mowing area.
Immediately STOP blades, STOP engine, and
STOP machine if anyone enters the area.
8. Check shields, deflectors, switches, blade
controls and other safety dev ices frequently for
proper operation and location.
9. Make sure all safety decals are clearly legible.
Replace if damaged.
10. Protect yourself w hen mowing and wear safety
glasses, long pants and substantial footwear.
11. Know how to STOP blades and engine quickly
in preparation for emergencies.
12. Use extra care when loading or unloading the
machine into a trailer or truck.
13. 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 worn spots.
OPERATION
1. Mount and dismount machine from left side.
2. Start engine from operator's seat, if possible.
Make sure blades are OFF and parking brake is
set.
3. DO NOT leave machine with engine running.
STOP engine, STOP blades, SET brake, and
Remove key before leaving operators position
of any reason.
4. DO NOT operate machine unless properly
seated with feet on feet rests or pedal(s).
5. STOP BLADES and ENGINE and make sure
blades have stopped before removing grass
catcher or unclogging mower to prevent loss of
fingers or hand.
6. Blades must be OFF except wh en cutting grass.
Set blades in highest position when mowing
over rough ground.
7. Keep hands an d feet away from rotating blades
underneath deck. DO NOT place foot on ground
while BLADES are ON or machine is in motion.
8. DO NOT operate machine without entire grass
catcher or guards in place. DO NOT point
discharge at people, passing cars, windows or
doors.
9. Slow down before turning.
10. Watch out for traffic when near or crossing
roadways.
11. STOP engine immediately after striking an
obstruction. Inspect machine and repair
damage before resuming operation.
12. Operate machine only in daylight or with good
artificial light.
13. Move joystick (if equipped) SLOWLY to
maintain control during speed and directional
changes.
OPERATION
(Continued From Previous Column)
14. Exercise CAUTION when pulling loads. Limit loads
to those you can safely control and attach loads to
hitch plate as specified wit h SNAPPER attachment
instructions.
15. DO NOT operate engine in enclosed areas. Engine
exhaust gases contain carbon monoxide, a deadly
poison.
MAINTENA NCE
1. DO NOT store machine 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 ou t of the reach of children in
a well ventilated, unoccupied building.
2. Keep 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. Check brakes frequently; adjust, repair or
replace as needed.
5. Keep all bolts, nuts and screws properly tight.
Check that all cotter pins are in proper position.
6. Always provide adequate ventilation when
running engine. Exhaust gases contain carbon
monoxide, an odorless and deadly poison.
7. Disconnect negative (black) cable from battery
before performing maintenance or service.
Cranking engine could cause injury.
8. DO NOT work under machine without safety
blocks.
9. Service engine and make adjustments only
when engine is stopped. Remove spark plug
wire(s) from spark plug(s) and secure wire(s)
away from spark plug(s).
10. DO NOT change engine governor speed
settings or overspeed engine.
11. Lubricate machine at intervals specified in
manual to prevent controls from binding.
12. Mow er blades are sharp and can cut. Wrap the
blades or wear heavy leather gloves and use
CAUTION when handling them.
13. DO NOT test for spark by grounding spark plug
next to spark plug hole; spark plug could ignite
gas exiting engine.
14. Have machine serviced by an authorized
SNAPPER dealer at least once a year and have
the dealer install any new safety devices.
15. Use only genuine SNAPPER replacement parts to
assure that original standards are maintained.
16. If battery is removed, DO NOT operate engine
without insulating Positive + battery cable
terminal with electrical tape, or sparking from
the battery cables can result
3
TABLE OF CONTENTS
IMPORTANT SAFETY INSTRUCTIONS.........................................................................2-3
TABLE OF CONTENTS......................................................................................................4
IMPORTANT: The figures and illustrations in this manual are provided for reference only and
may differ from your spec ific model. Contact your Snapper dealer if you have questions.
4
Section 1 - FAMILIARIZATION
FUEL TANK
SWITCH
BLADE LEVER
DEFLECTOR
BLADE
STEERING
WHEEL
TRANSMISSION
SHIFT LEVER
OVERRIDE
CONTROL
ENGINE SPEED
CONTROL
IGNITION
CLUTCH/BRAKE
PARK BRAKE
LATCH
DISCHARGE
1.1 INTRODUCTION
This manual has been prepar ed for the operator’s of the
SNAPPER Rear Engine Rider. Its purpose, aside from
recommending standard operating procedures and
routine service requirements, is to promote SAFETY
through the use of acc epted operating practices. Read, Understand and Follow the IMPORTANT SAFETY
INSTRUCTIONS on Pages 2 & 3 of this manual and All
SAFETY messages on the Rear Engine Rider and its
attachments before operating.
FIGURE 1.1
1.2 NOMENCLATURE
The nomenclature drawing above, Figure 1.1, s hows the
essential parts of the SNAPPER Rear Engine Rider. It is
recommended that all operators of this equipment
become thoroughly familiar with the controls,
components, and operation of this machine 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
KNOBS
OVERTIGHTEN)
KNOBS
2.1 PRE-START CHECK LIST
Make the following checks and perform the service
required before each start-up.
2.1.1. Chec k tires and add or release air as needed
to bring pressure to 12 PSI in front and 12 PSI in rear
tires.
2.1.2. Chec k guards, deflectors and covers to mak e
sure all are in place and securely tightened.
2.1.3. 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 2.1.
SAFE LEVEL
AREA
FIGURE 2.1
2.1.4. Adjust seat as needed to most comfortable
position. Refer to Section “OPERATOR’S SEAT
ADJUSTMENT”.
2.1.5. Check blade contr ol to insure it work s freely.
If blade pedals are depressed, blade lever can be
moved manually from “ON” to “OFF” to stop
blade.
2.1.6. Check Reverse Lockout Mechanism. With
blade pedals depressed, shift lever must not go into
reverse.
2.1.7. Clean exterior surfaces of cutting deck and
engine of any accumulation of dirt, grass, oil, etc.
Keep engine air intake s c reen and c ooling f ins clear at
all times.
2.1.8. Add fuel to tank af ter pushing the Rear Engine
Rider outside where fumes can dis sipate. Make sure
fuel filler cap is tight and vent is open after refueling.
Refer to engine owner’s manual fo r fuel s pecif ications.
See Figure 2.2.
OPEN
FUEL
FILLER
CAP
FUEL
TANK
VENT
FIGURE 2.2
2.2 OPERATOR’S SEAT ADJUSTMENT
2.2.1. FRONT TO REAR ADJUSTMENT
1. With the engine stopped, loos en the two adjusting
knobs and move seat to desired position. After
adjustment, tighten knobs securely. If seat does not
move after loosening knobs, it may be necessary to
loosen the 5/16” patch lock screws or hex nuts located
at the rear of the seat. See Figure 2.3.
ADJUSTING
5/16” PATCH LOCK
SCREWS (DO NOT
OPERATOR’S
SEAT
HEX NUTS
(DO NOT
OVERTIGHTEN)
6
OPERATOR’S
SEAT
ADJUSTING
FIGURE 2.3
Section 2 - OPERATING INSTRUCTIONS
2.3 STARTING & OPERATION
2.3.1. ENGINE (ELECTRIC START)
IMPORTANT: When the ignition key is turned to
“START”, the engine will turn over, but will
unless the Clutch/Brake pedal is pr essed all the way
down, the Blade Lever is in the “OFF” position (See
Figure 2.5). The operator should be in the seat. Start
engine as follows:
1. Move transmission shift lever to (N) Neutral
position. DO NOT start engine with transmission
shift lever in a drive position.
WARNING
It is possible to start engine w ith transmission shift
lever in a drive position. Follow starting instructions
carefully.
2. Make certain the Blade Lever is in the “OFF”
position. See Figure 2.4.
BLADE LEVER IN
“OFF” POSITION
not start
PARKING
BRAKE
LATCH
TO START ENGINE ,
PUSH CLUTCH/BRAKE
PEDAL ALL THE WAY
DOWN
FIGURE 2.5
RELEASE BLADE
PEDALS
FIGURE 2.4
3. Press Clutch/Br ake Pedal all
the way down and
hold while starting engine. See Figure 2.5.
4. Open vent on fuel filler cap by turning
counterclockwise. IMPORTANT: Failure to open
vent on the fuel filler cap can cause engine to stall.
See Figure 2.2.
5. Move engine speed c ontrol to the chok e position to
start a cold engine. See Figure 2.6.
6. Turn key to the “START” position until engine
starts. See Figure 2.7. NOTE: If after 5 seconds of
cranking the engine and it does not start, releas e the
key, make sure the Clutch/Brake Pedal is fully
depressed and attempt starting again after waiting for
approximately 20 seconds.
7. After engine starts , move engine speed control to
the “FAST” position, allow a brief warm-up until engine
runs smooth.
CHOKE
POSITION
ENGINE
SPEED
CONTROL
FIGURE 2.6
KEY
FIGURE 2.7
(Continued on Next Page)
7
Section 2 - OPERATING INSTRUCTIONS
OVER
2.3 STARTING & OPERATION
2.3.1. ENGINE (ELECTRIC START) (Continued)
8. Should the battery be too weak to start the engine,
refer to Section “ENGINE (MANUAL START)” to
manually start the electric start engines.
9. On Model 3314522BVE, the engine is equipped
with a fuel shut-off solenoid. If the batter y is dead, the
engine can be started with the recoil back -up starter if
the throttle control is in the choke position (HOT engine
or COLD engine).
2.3.2. ENGINE (MANUAL STA RT)
IMPORTANT: When the ignition key is turned to
“ON”, and the recoil handle is pulled, the engine will
turn over, but will
not start unless the Clutch/Brake
Pedal is pressed all the way down with Parking
Brake engaged (See Figure 2.8) and the Blade
Lever is in the “Off” pos ition (See Figure 2.4). Start
engine as follows:
1. Move transmission shift lever to (N) Neutral
position. DO NOT start engine with transm ission shift
lever in a drive position.
4. Open vent on fuel filler cap by turning
counterclockwise. NOTE: Failure to open vent on
the fuel filler cap can cause engine to stall.
5. Move engine speed control to the chok e position
to start a cold engine. See Figure 2.6.
6. Turn key to “ON” position. See Figure 2.9.
KEY
WARNING
It is possible to start engine w ith transmission shift
lever in a drive position. Follow starting instructions
carefully.
2. Make certain the Blade Lever is in the “OFF”
position. See Figure 2.4.
3. Press Clutch/Brake Pedal all
move Parking Brake Latch over and release the
Clutch/Brake Pedal to set Parking Brake. See
Figure 2.8.
TO START ENGINE ,
PUSH CLUTCH/BRAKE
PEDAL ALL THE DOWN
MOVE
PARKING
BRAKE
LATCH
FIGURE 2.8
the way down,
FIGURE 2.9
7. Pull starter rope with a smooth, even motion until
engine starts. Always guide the starter rope back
into the recoil housing. Never allow rope to snap
back. After Engine starts, move engine speed
control to the “FAST” position.
8. Allow a brief warm-up until engine runs smooth.
8
Section 2 - OPERATING INSTRUCTIONS
REVERSE GROUND SPEED
WARNING
Once blade is disengaged, it should come to a
complete stop in 3 seconds or less. If the blade
continues to rotate after 3 seconds, the blade brake
must be adjusted. Refer to Section “ BLADE BRAKE
ADJUSTMENT” for adjustment procedures or return
machine to an authorized SNAPPER dealer for
adjustment. DO NOT CONTINUE to operate machine
until blade brake is adjusted and functioning
properly.
2.3 STARTING & OPERATION
2.3.3. MOWER BLADE
1. With engine running, m ove engine speed contr ol
to the “FAST” position.
2. Move blade lever forward to the “ON” position,
then depress blade pedals to hold blade lever in the
“ON” position. See Figure 2.10.
BLADE LEVER SHOWN IN
“ON” POSITION
BLADE PEDAL
SHOWN
DEPRESSED
WARNING
DO NOT operate blades in reverse. STOP BLADES.
LOOK and SEE behind and down for children, pets
and hazards before and while backing.
DEPRESS
CLUTCH/BRAKE
PEDAL
FIGURE 2.11
2.3.4. WHEEL DRIVE
1. With engine running, adjust engine speed control to “FAST” position.
2. Depress clutch/brake pedal. See Figure 2.11.
3. Place transmission shift lever in notch for first
speed. See Figure 2.12.
4. Release clutch/brake pedal to begin desired
ground speed.
5. During forward motion, the transmission shift
lever may be placed in any desired forward speed
without depressing the clutch/brake pedal.
: For best cutting results, m ove the transmission
NOTE
shift lever into a slow forward speed and the engine
speed control to a fast position. This combination will
allow the mower blades to lift the grass while cutting
smoothly and evenly.
FIGURE 2.10
THERE ARE FIVE
DIFFERENT FORWARD
GROUND SPEEDS AND ONE
SHIFT LEVER SHOWN IN
NEUTRAL POSITION
FIGURE 2.12
9
Section 2 - OPERATING INSTRUCTIONS
WARNING
DO NOT leave the machine with the engine running.
STOP Blade. STOP engine. Shift to neutral and
engage park brake. Remove key.
2.4 STOPPING - ENGINE, WHEEL DRIVE, BLADE
2.4.1. ENGINE
1. Stop engine by turning key to the“OFF” position.
See Figure 2.13.
TURN TO
“OFF”
POSITION
KEY
TO APPLY
BRAKES, PUSH
CLUTCH/BRAKE
PEDAL ALL THE
WAY DOWN
PARK BRAKE
LATCH SHOWN
ENGAGED
CLUTCH/BRAKE
PEDAL
FIGURE 2.13
2.4.2. WHEEL DRIVE
1. Stop motion of Rear Engine Rider by pushing
clutch/brake pedal all the way “DOWN” to apply
brake. See Figure 2.14.
WARNING
Once blade is disengaged, it should come to a
complete stop in 3 seconds or less. If the blade
continues to rotate after 3 seconds, the blade brake
must be adjusted. Refer to Section “ BLADE BRAKE
ADJUSTMENT” for adjustment procedures or return
machine to an authorized SNAPPER dealer for
adjustment. DO NOT CONTINUE to operate machine
until blade brake is adjusted and functioning
properly.
2.4.3. MOWER BLADE
1. Stop mower blade by releasing blade pedals or
moving blade lever rearward to the “OFF” position.
See Figure 2.15.
FIGURE 2.14
BLADE LEVER IN “OFF”
POSITION
RELEASE BLADE
PEDALS
FIGURE 2.15
10
Section 2 - OPERATING INSTRUCTIONS
POSITION
2.4 STOPPING - ENGINE, WHEEL DRIVE, BLADE
2.4.4. PARK BRAKE
1. Engage park brake by pushing clutch/brak e pedal
“DOWN” and moving the park brake latch to the
“ENGAGED” position. W hile holding the park brake
latch “ENGAGED”, release clutch/brake pedal to set
park brake. See Figure 2.16.
WARNING
DO NOT park the machine on slopes.
CLUTCH/BRAKE
PEDAL
2.5. CUTTING HEIGHT ADJUSTMENT
1. Adjust cutting height as desired to any one of
five positions using deck lift lever. Move deck lift
lever up or down to desired cutting height and then
move over to secure in the height of cut notch.
See Figure 2.18.
PARK BRAKE
LATCH SHOWN
ENGAGED
FIGURE 2.16
2. Release park brake by pushing down on the
clutch/brake pedal, park ing brake latch will move to
the “OFF” position unassisted. See Figure 2.17.
CLUTCH/BRAKE
PEDAL SHOWN
DISENGAGED
PARK BRAKE
LATCH SHOWN
IN “OFF”
FIGURE 2.17
HEIGHT OF CUT
NOTCHES
DECK LIFT
LEVER
FIGURE 2.18
11
Section 2 - OPERATING INSTRUCTIONS
2.6 REVERSE LOCKOUT MECHANISM
Data indicates that tragic back-over accidents occur
each year. These accidents usually involve
unsupervised children. Many times these childr en have
been given rides on the mac hine and have been trained
to view this potentially dangerous piece of m achinery as
fun rather than being taught how to avoid danger.
This riding mower has a Rever se Lockout Mechanism.
This mechanis m prevents the mower fr om being shifted
into reverse with the blade running. To shift into reverse
you must first stop the blade by releasing the blade
pedals and then shift to reverse. It is our
recommendation that this mechanism remain functional
and the operator of this equipm ent develop the habit of
never backing up with the blade running. As the Safety
Instructions Indicate, DO NOT operate blades in
reverse. STOP BLADES, LOOK AND SEE BEHIND
AND DOWN for children, pets and hazards before
and while backing.
We realize that this could cause a change to your
previous mowing method but we encourage you to
adjust to this new system. Do not defeat the Reverse
Lockout Mechanism.
If you operate your mower near roadways or use
attachments that require quicker shifting to reverse,
there is an override lever provided. This lever can be
pushed and held before starting the blade and will allow
reverse operation until the blade pedals are released, at
which time the system will return to its Rever se Lock out
mode. This featur e s hould never be s elec ted unles s you
are absolutely sure that no children or others are
present in the mowing area and that all children are
away and supervised by a responsible adult.
12
2.6.1. Reverse Lockout Mechanism Override
1. Stop machine. Stop blade.
2. Depress and hold Override Lever.
3. Depress and hold Blade Pedals. Release
Override Lever.
4. Move blade lever forward to “ON” position.
LOOK and SEE b ehind and down fo r children, pets
and hazards before and while backing.
IMPORTANT: DO NOT use the Reverse Lockout
Mechanism Override as the nor mal operating mode. T o
return to the Reverse Lockout Mechanism mode,
release blade pedals to turn blade off. The Overr ide will
reset to Reverse Lock out. Check the Reverse Lockout
Mechanism frequently for proper function. With the
blade pedals depressed, the shift lever mus t not go into
reverse. DO NOT operate m achine if Reverse Lockout
Mechanism is not functioning properly. Contact your
local Snapper dealer for assistance.
LOOK and SEE behind and down for children, pets
and hazards before and while backing.
BLADES must be turned off before backing
machine.
DO NOT allow children on machine (even with
blades off) or in yard when mowing.
WARNING
DANGER
Section 3 – MAINTENANCE
WARNING
DO NOT attempt any adjustments, maintenance, service
or repairs with the engine running. STOP engine. STOP
blade. Engage parking brake. Remove key. Remove
spark plug wire from spark plug and secure aw ay from
plug. Engine and components are HOT. Avoid serious
burns, allow all parts to cool before working on
machine. Fuel Filler Cap and vent must be closed
securely to prevent fuel spillage.
3.1 INTRODUCTION
To retain the quality of the Rear Engine Rider, use
genuine SNAPPER replacement par ts only. Contact a
local SNAPPER dealer for parts and service
assistance. For the correct part or information for a
particular Rear Engine Riding Mower, always mention
the model and serial number. SNAPPER recommends
returning the Rear Engine Rider to an authorized
SNAPPER dealer annually for inspection and addition
of any new devices, which might upgrade the safety of
the Rear Engine Rider. For the nearest SNAPPER
dealer in your area, check the yellow pages under the
heading LAWN MOWERS. For engine parts and
service, look for the engine manufacturer’s dealers
under the heading, ENGINES - gasoline.
3.2 SERVICE - AFTER FIRST 5 HOURS
Routine maintenance is impor tant to the performance
and life of your Rear Engine Rider. Service perform ed
properly and at the recommended interval is ess ential.
Refer to Section “MAINTENANCE SCHEDULE” in this
manual and in the Engine Owner’s Manual. Carefully
complete all of the recommended service procedures.
3.2.1. CHANGE ENGINE OIL
1. Place bricks or wooden blocks under the front
wheels to lower rear of engine.
2. Loosen or remove oil fill cap on engine.
3. Loosen oil drain plug.
4. Place a 2 quart minimum capacity container
under the end of the oil drain. Open oil drain. See
Figure 3.1 for oil drains used on the Rear Engine
Riders.
REMOVE OIL PLUG TO
ALLOW OIL TO DRAIN
5. After all the oil has drained, close the drain and
wipe up any oil that may have spilled. See Figure 3.1.
Dispose of used oil properly.
6. Fill engine crankcase with new oil. Refer to
your engine owner’s manual for oil specifications.
7. Change oil filter on 14HP Kohler engines at every
oil change. Refer to your engine owner’s manual for
service instruct ion s.
3.2.2. SERVICE ENGINE AIR CLEANER
The engine is equipped with a dual element air
cleaner. Both the foam pre-cleaner and cartridge
require service. Refer to Engine Owner’s Manual
for recommended service procedures.
3.2.3. CHECK MOWER BLADE
1. Follow WARNING statement found on this page.
2. Check fuel level in tank. If over 3/4 full, remove
tank. Refer to Section “REMOVING FUEL TANK”.
If 3/4 or less, proceed to next step.
3. Carefully stand Rear Engine Rider on rear
bumper.
WARNING
Remove the battery if the Rear Engine Rider will be left
standing on the rear bumper for longer than 2 hours.
Refer to Section “BATTERY REMOVAL”. DO NOT use a
cutting blade that shows signs of excessive wear or
damage on the Rear Engine Rider. Refer to Section
“MOWER BLADE REPLACEMENT” for proper blade
inspection and service procedures.
4. Check torque of blade mounting bolts. As
necessary, torque to 30 to 40 ft. lbs. See Figure 3.2.
5. Check blade for s harpness, wear and damage.
Refer to Section “BLADE WEAR LIMITS”.
ROTATE COUNTERCLOCKWISE AND
PULL OUT TO OPEN
TORQUE BLADE
MOUNTING BOLTS TO
30 TO 40 FT. LBS.
PUSH IN AND ROTATE
CLOCKWISE TO CLOSE
FIGURE 3.1
6. Check blade for straightness. Refer to Section
“ADJUSTING MOWER BLADE”.
13
FIGURE 3.2
Section 3 - MAINTENANCE
1-1/4”
WARNING
DO NOT attempt any adjustments, maintenance,
service or repairs with the engine running. STOP
engine. STOP blade. Engage parkin g brake. Remove
key. Remove spark plug wire from spark plug and
secure away from plug. Engine and components are
HOT. Avoid serious burns, allow all parts to cool
before working on machine. Fuel Filler Cap and vent
must be closed securely to prevent fuel spillage.
3.2 SERVICE - AFTER FIRST 5 HOURS
3.2.4. CHECK BLADE DRIVE BELT
The blade drive consists of a single belt from the
engine to the deck. Inspect for s igns of deterioration
and proper tension.
1. Lower deck to lowest setting.
2. Remove four self-tapping screws, two on each
side of mower drive belt cover. See Figure 3.3.
3. Slide cover back and rotate out on left side of
mower deck.
IMPORTANT: The blade drive belt on 33” decks does
not require tension adjustment. If the belt becomes worn
or slack it must be replaced. Refer to Section “BLADE
DRIVE BELT REPLACEMENT”.
ENGINE
PULLEY
BELT SPACING
SHOULD BE
IDLER
PULLEY
REMOVE FOUR (4)
SELF-TAPPING
REMOVE
COVER
FIGURE 3.3
4. W ith engine “OF F” and deck in 3rd height of cut
position, move blade lever back to the “O N” pos ition
and depress blade pedals.
5. 28” and 30” Decks: Measure the belt spacing at
idler pulley. See Figure 3.4. The belt spacing
should be 1-1/4” but no less 1”. If the measurement
is less than 1”, the belt tension should be adjusted.
Refer to Section “BLADE DRIVE BELT
ADJUSTMENT”.
WARNING
The following procedure requires the engine and
blades to be operated. Exercise extreme caution.
Clear area of loose parts & tools first. Only operate
blades when seated in the operator’s seat.
MOWER
DECK
PULLEY
FIGURE 3.4
3.2.5. BLADE BRAKE
1. Check blade br ake for proper f unction. Blade should
stop rotating in 3 sec onds or less after moving the blade
control lever to the “OFF” position or after releasing the
blade pedals.
WARNING
Blades must stop rotating in 3 seconds or less after
the blade has been turned off. DO NOT operate
machine until blade brake has been adjusted and
functioning properly.
2. If the blade continues to rotate longer than 3
seconds do not operate machine. Refer to Section
“BLADE BRAKE ADJUSTMENT” or contact your
SNAPPER dealer for assistance.
3.2.6. SERVICE BRAKE / PARK BRAKE
1. Check machine brake for proper function. Engage
park brake. Push m achine. Rear tires should sk id. Drive
machine forward and apply brake. Machine s hould come
to a complete stop in less than 5 ft.
2. If brakes are not functioning properly brake
adjustment must be completed before operating
machine. Refer to Section “SERVICE BRAKE – PARK
BRAKE ADJUSTMENT”.
14
Section 3 – MAINTENANCE
WARNING
DO NOT operate machine if interlock system is not
functioning properly. Contact your SNAPPER dealer
immediately for assistance.
3.2 SERVICE - AFTER FIRST 5 HOURS
3.2.7. INTERLOCK SYSTEM
Check interlock controls for proper function:
The engine MUST NOT start if:
1. Blade Control is “ON” and/or clutch/brake pedal is
released.
The engine and blades MUST STOP if:
2. The oper ator leaves the operator position with Blade
Control “ON” and/or clutch/brake pedal is released.
3.2.8. REVERSE LOCKOUT MECHANISM
Check function of Reverse Lockout Mechanism with
engine off.
1. Depress and hold blade pedals.
2. Depress and hold clutch/brake pedal.
3. Shift lever must not go into reverse.
WARNING
DO NOT operate machine if Reverse Lockout
Mechanism is not functioning properly. Contact your
SNAPPER dealer immediately for assistance.
3.2.9. LUBRICATION – GREASE FITTINGS
The following com ponents on the Rear Engine Rider ar e
equipped with grease fittings and require periodic
lubrication. Apply General Purpose grease (NLGI No.2)
with a grease gun.
1. Front Wheel Bearings. Refer to Section “FRONT
WHEEL BEARINGS – LUBRICATION”.
Perform all service required after the first 5 hours of
operation. Refer to Section “SERVICE – AFTER 5
HOURS”.
3.3.1. CHECK ENGINE
1. Change engine oil. Refer to Section “CHANGE
ENGINE OIL”. Refer to engine owner's m anual for oil
specification.
2. Change air filter. Pull up and rotate the air cleaner
latch to remove cleaner cover. See Figure 3.4.
IMPORTANT: When cover is removed, you are
viewing the carburetor side of the air filter, which will
appear clean. Remove filter and pre-cleaner for
inspection.
AIR CLEANER
LATCH
BRIGGS ENGINE SHOWN
AIR CLEANER
COVER
FIGURE 3.4
3. Refer to engine owner's m anual for cleaning and
service instructions. Remove and clean engine air
pre-cleaner. Remove and replace engine air cleaner.
See Figure 3.5. Install pre-cleaner and air cleaner
per engine owner’s manual.
AIR PRECLEANER
BRIGGS ENGINE SHOWN
AIR CLEANER
FIGURE 3.5
4. Reinstall air cleaner cover . Insert tabs located at
the bottom of the cover into corresponding slots in
engine cover. Position cover and engage latch over
cover and rotate and push down to lock.
IMPORTANT: The tabs on the air cleaner cover
must be com pletely inserted into engine cover or the
compartment will not be completely sealed to
prevent debris from entering into the carburetor.
15
Section 3 - MAINTENANCE
WARNING
DO NOT attempt any adjustments, maintenance or
service with the engine or blades running. Stop
blades. Stop engine. En gage parking brake. Remove
key. Remove spark plug wires from spark plugs and
(gas only) secure wires away from spark plugs.
Engine and components are HOT. Avoid serious
burns by allowing all parts sufficient time to cool.
Fuel Filler Cap and Vent must be closed securely to
prevent fuel spillage.
3.3 SERVICE - EVERY 25 OPERATING HOURS
3.3.2. BATTERY FLUID LEVEL
1. Remove battery. Refer to Section “BATTERY
REMOVAL”.
2. Remove battery caps. Check fluid level.
3. Add water only to bring fluid to proper level –
approximately 3/16” above plates.
DO NOT OVERFILL.
4. Reinstall battery. Refer to Section “BATTERY
INSTALLATION”.
3.3.3. MOWER DECK LEVELNESS
Check mower deck for proper level. Adjust as required.
Refer to Section “MOWER DECK ADJUSTMENT –
LEVELNESS”.
3.3.4. CLEAN MOWER DECK
1. Follow WARNING statement found on this page.
2. Check fuel level in tank. If over 3/4 full, remove tank.
Refer to Section “REMOVING FUEL TANK”.
If 3/4 or less, proceed to next step.
3. Carefully stand Rear Engine Rider on rear bumper.
4. Clean underside of mower deck, removing all
accumulation of grass clippings and debris.
5. Clean top of deck, removing all grass clippings and
debris.
3.3.5 MOWER BLADE SPINDLE - LUBRICATION
1. Follow WARNING statement found on this page.
2. Check fuel level in tank. If over 3/4 full, remove tank.
Refer to Section “FUEK TANK REMOVAL” . If 3/4 or less,
proceed to next step.
3. Carefully stand Rear Engine Rider on rear bumper.
4. Lubricate spindle with three shots of general purpose
grease from grease gun. See Figure 3.5.
IMPORTANT: If the Rear Engine Rider will be on its
rear bumper for longer than two hours, remove the
battery. Refer to Section “BATTERY REMOVAL”.
3.3.6. MOWER DECK LINKAGE - LUBRICATION
Lubricate all mower deck linkage pivot points with a light
coat of motor oil.
SPINDLE
GREASE FITTING
FIGURE 3.5
3.3.7. FRONT WHEEL BEARING - LUBRICA TION
1. Lubricate front wheel bearings with five shots of
general purpose grease, from grease gun. See
Figure 3.6.
FRONT WHEEL
GREASE FITTING
FIGURE 3.6
16
Section 3 – MAINTENANCE
WARNING
DO NOT attempt any adjustments, maintenance,
service or repairs with the engine running. Stop
engine. Stop blade. Engage parking brake. Remove
key. Remove spark plug wire from spark plug and
secure away from plug. Engine and components are
HOT. Avoid serious burns, allow all parts to cool
before working on machine. Fuel Filler Cap and Vent
must be closed securely to prevent fuel spillage.
3.3 SERVICE - EVERY 25 OPERATING HOURS
3.3.8. REAR AXLE BEARING - LUBRICATION
1. The lef t rear axle bearing requir es three shots of
general purpose grease from grease gun. See
Figure 3.7.
2. The right rear axle bearing is lubricated by the
differential lubricant and requires no grease.
LEFT REAR
AXLE BE ARING
GREASE
FITTING
2. To check lubricant, remove fill/level plug and
visually inspect for lubricant on the internal parts of the
differential. If no lubricant is visible on the internal
parts of the differential, add transmission grease as
needed. See Figure 3.8.
IMPORTANT: Overfilling of the differ ential with lubricant will
cause lubricant to leak onto dr ive components of the Rear
Engine Rider.
DIFFERENTIAL
PLUG
FIGURE 3.7
3.3.9. DIFFERENTIAL/CHAIN CASE - LUBRICA TION
1. Stand rear engine rider on its rear bumper and
check the fill/level plug, for cracks and wear. Replace
fill/level plug if signs of wear are visible.
IMPORTANT: If the Rear Engine Rider will be on its
rear bumper for longer than two hours, remove the
battery. Refer to Section “BATTERY REMOVAL”.
FIGURE 3.8
3. Check fill/level plug for dam age. If signs of wear or
cracks are visible, replace plug with new plug. See
Figure 3.9.
4. To check lubricant in chain case, remove fill/level
plug and look for lubricant on the internal
components of the chain case. If no lubricant is
visible, add SNAPPER transmission grease as
needed. See Figure 3.9.
CHAIN
CASE
FILL/LEVEL
PLUG
P.N. 1-1024
AXLE
BOOTS
FIGURE 3.9
3.3.10. Check “MAINTENANCE SCHEDULE”
Section of Engine Owner’s Manual for additional
engine service.
17
Section 3 – MAINTENANCE
WARNING
DO NOT attempt any adjustments, maintenance,
service or repairs with the engine running. Stop
engine. Stop blade. Engage parking brake. Remove
key. Remove spark plug wire from spark plug and
secure away from plug. Engine and components are
HOT. Avoid serious burns, allow all parts to cool
before working on machine. Fuel Filler Cap and
Vent must be closed securely to prevent fuel
spillage.
3.4 SERVICE - ANNUALLY
3.4.1. ENGINE
1. Perform all maintenance as specified in
“MAINTENANCE SCHEDULE” Section of this
manual.
3.4.2. FUEL FILTER
Service fuel filter as instructed below, on COLD
ENGINE ONLY!
IMPORTANT: To stop flow of fuel, tank may be
removed from bracket and set on the floor so the fuel
level will be below the filter. Refer to Section
“REMOVING FUEL TANK”.
1. Remove hose clamps from fuel filter.
2. Remove fuel lines from filter. Discard filter.
3. Install new fuel filter. See Figure 3.10.
4. Reinstall fuel tank into bracket.
5. Carefully reinstall fuel clamps.
6. Check fuel system for leaks.
HOSE
CLAMPS
FUEL
TANK
3.5 EVERY TWO YEARS
In addition to regular maintenance, the following
components of the Rear Engine Rider should be
carefully inspected every two years for wear or
damage. Replace worn or damaged parts with
genuine SNAPPER replacement parts available
from an authorized SNAPPER dealer.
3.5.1. All bushings and pivot areas.
3.5.2. Check both front wheel king pins.
3.5.3. Transmission shift lever and detent.
3.5.4. Clutch disc.
3.5.5. Clutch Yoke.
3.5.6. Mower deck linkage and pivot areas.
3.6 STORAGE (OUT OF SEASON)
If desired, the Rear Engine Rider can be s tored on
the rear bumper. Perf orm the following procedures
to insure the Rear Engine Rider will operate
properly when taken out of storage.
3.6.1. Thoroughly clean the Rear Engine Rider by
removing all grass clippings and debris.
3.6.2. Perform maintenance and lubrication as
required.
3.6.3. Drain fuel from fuel tank.
3.6.4. Start engine and allow it to run until engine
runs out of fuel. This allows the carburetor and
fuel system to remain clean during storage.
3.6.5. Remove battery. Refer to Section
“BATTERY STORAGE”.
3.6.6. Close vent on fuel filler cap.
3.6.7. Carefully stand Rear Engine Rider on rear
bumper in desired location for storage.
3.7 REMOVING FUEL TANK
Before removing fuel tank from rear engine rider,
move rider outdoors where fumes can be easily
dissipated. Removal of the tank is accomplished
from the left side of the machine by pulling the tank
straight up and away from the fuel tank bracket.
Holding the fuel tank, remove the fuel filler cap and
pour remaining fuel in an approved container. See
Figure 3.11.
FUEL
FILTER
P.N. 1-4359
FUEL
FILLER
CAP
FUEL
TANK
FIGURE 3.10
FIGURE 3.11
FUEL TANK
BRACKET
18
Section 4 - ADJUSTMENTS & REPAIR
DISENGAGED
WARNING
DO NOT attempt any adjustments, maintenance,
service or repairs with the engine running. Stop
engine. Stop blade. Engage parking brake. Remove
key. Remove spark plug wire from spark plug and
secure away from plug. Engine and components are
HOT. Avoid serious burns, allow all parts to cool
before working on machine. Fuel Filler Cap and Vent
must be closed securely to prevent fuel spillage.
4.1 ENGINE ADJUSTMENTS & REPAIR
Refer to the engine owner’s manual for those
adjustments and/or repairs that can be m ade by the
owner.
4.2 MOWER DECK & COMPONENT ADJUSTMENTS
The following mower deck and component
adjustments and repairs can be made by the owner.
However, if there is difficulty in achieving these
adjustments and repairs, it is recommended that
these repairs be made by an authorized SNAPPER
dealer.
WARNING
Once blade is disengaged it should come to a stop
in 3 seconds or less. If the blade continues to rotate
after 3 seconds the blade brake must be adjusted.
DO NOT continue t o o perate t he mach ine if the b lade
brake is not operating properly.
4.2.1. BLADE BRAKE ADJUSTMENT
The automatic Blade Brak e should stop the blades
within 3 seconds anytime the blades are
disengaged by moving blade lever to the "OFF"
position or by releasing the Blade Pedals. When
the Blade Brake is properly adjusted there should
be 3” to 3-1/4" clearance between the Blade
Engagement Lever and the edge of the Latch
Plate. Check this by disengaging the Blade Lever
as shown in Figure 4.1. Perform the following
measurement and adjustment.
1. W ith the blade engagement lever disengaged,
measure the distance between the front of the
blade lever and the edge of the latch plate. The
dimension should be 3” to 3-1/4" clearance
between lever and edge of plate. See Figure 4.1.
If the dimension is incorrect go to step 2.
2. Remove Belt Cover. Refer to Section “BLADE
BELT COVER REMOVAL”.
3. If dimension is greater than 3-1/4”, rotate nut
clockwise to increase brake tension. If dimension
is less than 3”, rotate nut counter-clockwise to
decrease brake tension. See Figure 4.2.
4. Reinstall belt cover and tighten bolts securely.
WARNING
DO NOT operate machine until blade brake is
adjusted and functioning properly. If blade stop time
can not be achieved with the adjustment procedure
described above, take machine immediately to an
authorized Snapper dealer.
(Continued on Next Page)
3” to 3-1/4”
CLEARANCE
BLADE
LEVER
MEASURE FROM
THIS EDGE
FIGURE 4.1
ROTATE NUT CLOCKWISE TO
INCREASE BRAKE TENSION.
ROTATE NUT COUNTERCLOCKWISE TO DECREASE
BRAKE TENSION.
FIGURE 4.2
19
Section 4 - ADJUSTMENTS & REPAIR
BOLT & NUT
WARNING
DO NOT attempt any adjustments, maintenance,
service or repairs with the engine running. STOP
engine. STOP blade. Engage parkin g brake. Remove
key. Remove spark plug wire from spark plug and
secure away from plug. Engine and components are
HOT. Avoid serious burns, allow all parts to cool
before working on machine. Fuel Filler Cap and vent
must be closed securely to prevent fuel spillage.
4.2.2. MOWER DECK ADJUSTMENT
(Side-To-Side Levelness)
Before making deck leveling adjustments, check the
tire pressure. Front tir es 12 PSI, rear tires 12 PSI. If
tires are properly inflated and mowing is still uneven,
adjust side-to-side deck levelness.
1. Place Rider on a smooth level surface.
2. Turn engine off and remove key, remove spark
plug wire from spark plug and secure wire away from
plug.
3. Place a piece of angle iron, pipe, or similar object
under center of deck at the rear.
4. Remove rear hanger chains and allow center, r ear
of deck to rest on angle iron.
5. Measur e the distance f rom blade tips to floor. If the
measurement is within 1/8” f rom side-to-side, the deck
attitude is satisfactory. If difference from side-to-side is
greater than 1/8”, continue with adjustment.
6. Loosen the shoulder bolt & nut that retains the left
side of blade pedal. See Figure 4.3.
LOOSEN
SHOULDER
FIGURE 4.3
BLADE PEDAL
LIFT
ARM
7. Move lift arm up or down as required until blade tips
are within 1/8” of each other. See Figure 4.3.
8. Tighten shoulder bolt & nut loosened in Step 6.
Recheck both sides of deck for correct levelness.
9. Readjust rear hanger chain pivots to align with
holes in support brackets.
See Figure 4.4.
10. Remove angle iron, pipe, or similar object and
proceed to check front to rear levelness.
With the Rear Engine Rider on a smooth, level
surface, rotate blade until blade tips are at f ront and
rear of deck . Measur e the distance from blade tips
to floor. The distance should be the sam e, or the
rear 1/8” to 1/4” lower than the front. If the rear
blade tip is higher or is more than 1/4” lower than
the front, proceed with adjustment. Go to Step 1.
With the Rear Engine Rider on a smooth, level
surface, rotate blade until blade tips are at front and
rear of deck. Measur e the distance from blade tips to
floor. The distance should be the same, or the rear
1/8” to 1/4” higher than the front. If the rear blade tip is
lower or is more than 1/4” higher than the front,
proceed with adjustment. Go to Step 1.
1. Remove rear hanger chains.
2. Turn each hanger pivot the same number of
rotations on the eye-bolt to raise or lower the rear of
the deck. See Figure 4.4.
3. Reinstall rear hanger c hains and measure blade
tips again.
4. Repeat steps “1” through "3” until proper
levelness is obtained.
(Front to Rear Levelness - 30” Decks)
FLOOR
FRONT
HAIRPIN
SUPPORT
BRACKET
HANGER
CHAIN
REAR
X-1/8”
HANGER
CHAIN PIVOT
FIGURE 4.4
20
Section 4 - ADJUSTMENTS & REPAIR
WARNING
DO NOT attempt any adjustments, maintenance,
service or repairs with the engine running. STOP
engine. STOP blade. Engage parkin g brake. Remove
key. Remove spark plug wire from spark plug and
secure away from plug. Engine and components are
HOT. Avoid serious burns, allow all parts to cool
before working on machine. Fuel Filler Cap and vent
must be closed securely to prevent fuel spillage.
2. Move blade lever up and over to the “ON” position.
3. Place deck cutting height in the 3rd position.
Measure the belt spacing between idler pulley and
belt. The distance should measure 1-1/4” but no
less than 1”. See Figure 4.5.
1-1/4”
SPINDLE
PULLEY
IDLER
PULLEY
FIGURE 4.5
4. If the distance is less than 1”, adjust belt tension.
5. Move blade lever to the “OFF” position.
6. Loosen hardware that secures the clamp that
anchors the front fram e assembly to the rear main
case. See Figure 4.6.
7. Pull front frame forward until belt spacing, with
blade lever “ON”, measures 1-1/4”.
8. Retighten hardware that secures clamp. Make sure
hardware is tightened securely.
IMPORTANT: The SNAPPER Rear Engine Rider Models
with 33” decks do not require belt tension adjustment. But, if
front frame assembly clamp is loosened for any reason,
recheck belt spacing between idler pulley and belt. With
blade lever in the “ON” position, the distance should
measure 1-3/4”.
9. When belt adjustment is complete it will be
necessary to check Clutch/Brake Cable slack.
10. Disengage parking brake and allow pedal to remain
in the engaged wheel drive (Up) position. See Figure
4.7.
11. Clutch/Brake Cable should have approximately
3/16” of slack. If the cable does not have slack
adjustment of cable must be performed.
ENGINE DRIVE
PULLEY
ASSEMBLY
LOOSEN HARDWARE AND SLIDE FRONT
FRAME ASSEMBLY FORWARD TO OBTAIN THE
DESIRED BELT TENSION MEASUREMENT
12. Peel back the r ubber clutch/br ak e pedal pad and
push one ferrule through hole in pedal to attain slack
in cable. See Figure 4.7. Recheck cable for the
approximate 3/16” of slack . Replac e pedal pad when
adjustment is complete.
IMPORTANT: Too much slack may cause improper
clutching and braking could be aff ected. Too little slack
may cause improper clutch function. Recheck service
brake/park brake and readjust if necessary. Refer to
Section “SERVICE BRAKE/PARK BRAKE ADJUSTMENT”.
PEEL BACK PEDAL PAD. PUSH
ONE FERRULE THROUGH PEDAL.
RECHECK CABLE SLACK
SLIDE FRONT
END ASSMBLY
FERRULE
FERRULE
LOOSEN
HARDWARE
FIGURE 4.6
PEDAL IS SHOWN IN
THE ENGAGED OR UP
POSITION
FIGURE 4.7
21
Section 4 - ADJUSTMENTS & REPAIR
YOKE
WARNING
DO NOT attempt any adjustments, maintenance,
service or repairs with the engine running. STOP
engine. STOP blade. Engage parkin g brake. Remove
key. Remove spark plug wire from spark plug and
secure away from plug. Engine and components are
HOT. Avoid serious burns, allow all parts to cool
before working on machine. Fuel Filler Cap and vent
must be closed securely to prevent fuel spillage.
4.3 REAR ENGINE RIDER DRIVE COMPONENTS
Your Snapper rider is equipped with a patented
smooth start clutch. The clutch should operate
smoothly and provide am ple traction. If problem s are
experienced, contact your Snapper dealer for repair.
4.3.1 SERVICE BRAKE/PARK BRAKE
ADJUSTMENT
Test the wheel brake on a dry concrete surface.
When proper ly adjusted, the Rear Engine Rider will
stop within 5 feet from fastest speed. If stopping
distance is more than 5 feet, the wheel brake
should be adjusted as follows:
1. Follow WARNING statement found on this page.
Check fuel level in tank. Refer to Section
“REMOVING FUEL TANK”. If over 3/4 full, remove
tank.
2. If 3/4 or less, proceed to next step.
3. Carefully stand Rear Engine Rider on rear
bumper.
4. Depress clutch/brake pedal all the way down.
Move and hold the park brake lever in the “ON”
position and release the clutch/bra ke pedal to lock
the park brake. See Figure 4.8.
6. If measurement is not 3/4”, loosen the two jamnuts. See Figure 4.10. Hold the clutch/brake cable to
the chain case bracket.
7. Adjust cable up or down using the jam-nuts to
obtain a distance of 3/4” between end of clutch/brak e
cable (adjustment shown in inset of Figure 4.9) and
bottom of housing. See Figure 4.9.
8. After adjustment is complete, securely tighten cable
jam-nuts.
9. Retest wheel brake.
CABLE
HOUSING
SPRING
CABLE
EYE
COTTER
PIN
BRAKE CABLE
CHAIN
CASE
CLUTCH
HOUSING
COTTER PIN
3/4”
FIGURE 4.9
CHAIN
CASE
DEPRESS
CLUTCH/BRAKE
MOVE PARKING
BRAKE LATCH OVER
TO LOCK
FIGURE 4.8
5. Measure the distance between end of
clutch/brake cable and bottom of housing.
Measurement should be 3/4”. See inset of Figure
4.9.
LOOSEN
JAM NUTS
FIGURE 4.10
22
Section 4 - ADJUSTMENTS & REPAIR
WARNING
DO NOT attempt any adjustments, maintenance,
service or repairs with the engine running. Stop
engine. Stop blade. Engage parking brake. Remove
key. Remove spark plug wire from spark plug and
secure away from plug. Engine and components are
HOT. Avoid serious burns, allow all parts to cool
before working on machine. Fuel Filler Cap and Vent
must be closed securely to prevent fuel spillage. DO
NOT use a cutting blade that shows signs of
excessive wear or damage. On Rear Engine Riders
equipped with a grass catcher attachment, the air
lifts should be replaced when the blade is replaced.
4.4 MOWER BLADE REPLACEMENT
4.4.1. BLADE WEAR LIMITS
1. Inspect blade frequently for signs of excessive
wear or damage. See Figure 4.11.
NEW BLADE
5. Inspect condition of blade. See Figure 4.11.
6. If blade is in good condition, sharpen at 22 to 28
degrees. DO NOT sharpen beyond existing cutting
edge. See Figure 4.13.
7. Check blade balance after sharpening. If
necessary, correct blade balance by grinding the
heavy end of blade.
8. Reinstall blade. See Figure 4.12. Torque blade
mounting bolts to recom mended range of 30 to 40
ft. lbs.
NUT
LOCKWASHER
WEAR LIMIT
(Notch Starts)
DANGEROUS CONDITION!
DO NOT USE ON MOWER!
REPLACE WITH NEW
BLADE.
FIGURE 4.11
WARNING
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.
4.4.2. BLADE SHARPENING
1. Follow WARNING statement found on this page.
2. Check fuel level in tank. If over 3/4 full, remove
tank. Refer to Section “REMOVING FUEL TANK”. If
3/4 or less, proceed to next step.
3. Carefully stand Rear Engine Rider on rear bumper.
4. Remove blade. See Figure 4.12.
23
DO NOT SHARPEN
BEYOND
ORIGINAL
CUTTING EDGE
BLADE
FIGURE 4.12
22º TO 28º
ORIGINAL CUTTING EDGE
FIGURE 4.13
BLADE
MOUNTING
BOLTS
BLADE TIP
Section 4 - ADJUSTMENTS & REPAIR
28” & 30” DECKS
33” DECKS
REMOVE IDLER
REMOVE IDLER
WARNING
DO NOT attempt any adjustments, maintenance,
service or repairs with the engine running. STOP
engine. STOP blade. Engage parkin g brake. Remove
key. Remove spark plug wire from spark plug and
secure away from plug. Engine and components are
HOT. Avoid serious burns, allow all parts to cool
before working on machine. Fuel Filler Cap and vent
must be closed securely to prevent fuel spillage.
4.5 MOWER DRIVE BELT REPLACEMENT
Inspect mower drive belt as described in Section
“CHECK MOWER DRIVE BELT”. Replace belt if signs
of excessive wear and/or damage are present.
4.5.1. BELT REMOVAL
1. Remove mower drive belt cover. Refer to
Section “DRIVE BELT COVER REMOVAL”.
2. Remove old belt.
4.5.2. BELT REPLACEMENT
1. Follow WARNING statement found on this page.
2. Check fuel level in tank. If over 3/4 full, remove
tank. Refer to Section “REMOVING FUEL TANK”. If
3/4 or less, proceed to next step.
3. Carefully stand Rear Engine Rider on rear bumper.
4. Route new belt through engine belt guide up to
engine pulley. See Figure 4.14.
ENGINE PULLEY
ENGINE
BELT
GUIDE
9. Route belt onto spindle pulley. Make sure belt is
inside spindle belt guide and idler belt guide. Route belt
as shown in Figure 4.15 or 4.16.
10. Reinstall idler removed in Step 8. The idler belt
guide tab should be positioned in the hole located on
idler arm. Tighten idler pulley bolt securely.
11. Adjust belt guide. See Figure 4.15 or 4.16 for
proper belt-to-belt guide clearances.
12. Check mower drive belt tension and adjust if
necessary (28” & 30” decks only). Refer to Section
“MOWER DRIVE BELT ADJUSTMENT”.
13. Reinstall mower drive belt cover.
1/16” NOMINAL
1/16” NOMINAL
IDLER BELT GUIDE
FIGURE 4.15
33” MODELS
(DUAL IDLER SYSTEM)
5. Move transmission shift lever to the neutral (N)
position.
6. Rotate clutch yoke (clutch yoke shown in Figure
4.9) out with your hand and work belt between drive
disc and rubber driven disc.
7. To clear the primary chain case, move
transmission shift lever to the #5 position. Route
belt around drive disc and into drive pulley belt
groove.
8. Remove idler. See Figure 4.15 and 4.16.
FIGURE 4.14
FIGURE 4.16
24
Section 4 - ADJUSTMENTS & REPAIR
CABLE
WARNING
DO NOT attempt any adjustments, maintenance,
service or repairs with the engine running. Stop
engine. Stop blade. Engage parking brake. Remove
key. Remove spark plug wire from spark plug and
secure away from plug. Engine and components are
HOT. Avoid serious burns, allow all parts to cool
before working on machine. Fuel Filler Cap and Vent
must be closed securely to prevent fuel spillage. DO
NOT attempt to service o r charge the battery while it
is installed on the machine.
4.6 BATTERY
4.6.1. BATTERY REMOVAL
1. Carefully pull each side of battery cover away
from ratchet fasteners and remove cover. See
Figure 4.17.
BATTERY COVER
RATCHET
FASTENERS
FIGURE 4.17
2. Remove the hair pin and swivel from the deck
support to allow clearance for battery removal.
3. Slide battery from battery box to gain access to
terminal cables.
4. Observe and note cable positions on battery.
See Figure 4.18.
5. Disconnect cables from battery terminals,
disconnecting BLACK (Negative) cable f irst. Retain
mounting bolts and nuts.
CAUTION
If battery is removed, DO NOT operate engine
without insulating Positive + battery cable terminal
with electrical tape, or sparking from battery cables
can result.
RED
POSITIVE (+)
BLACK
NEGATIVE (-)
POSITIVE TERMINAL
INSULATOR
INSTALL BATTERY POSITIVE
(+) END FIRST INTO
BATTERY COMPARTMENT IN
DIRECTION OF ARROW AS
SHOWN
FIGURE 4.18
WARNING
Cables must be connected to batt ery terminals in t he
proper position as show in Figure 4.18. DO NOT
attempt to charge battery wh ile installed on the Rear
Engine Rider. DO NOT use “BOOST” chargers on the
battery.
4.6.2. BATTERY INSTALLATION
1. Slide battery partially into battery housing.
2. Connect positive (+) cable (red) first, from
wiring harness to the positive terminal (+) on
battery using bolt and nut provided in hardware
bag. Connect negative (-) cable (black) last, to
negative terminal (-) on battery using bolt and nut.
Apply a small amount of grease over term inals to
prevent corrosion.
3. Reinstall positive terminal insulator .
4. Insert battery completely into battery housing.
5. Reinstall battery cover. See Figure 4.17.
6. Reinstall swivel and hair pin for deck s uppor t.
25
Section 4 - ADJUSTMENTS & REPAIR
WARNING
The electrolyte (acid) produces a h ighly explosive gas.
Keep all sparks, flame and fire away from area when
charging battery or when handling electrolyte or
battery. Electrolyte (acid) is a highly corrosive liquid.
Wear eye protection. Wash affected areas immed iately
after having eye or skin contact w ith electrolyte (acid).
Battery acid is corrosive. Rinse empty acid containers
with water and mutilate before discarding. If acid is
spilled on battery, bench, or clothing, etc., Flush with
clear water and neutralize with baking soda. DO NOT
attempt to charge battery while installed on the RIDER.
DO NOT use “BOOST” chargers on the battery.
4.6.3. BATTERY SERVICE
1. Remove battery. Refer to Section “BATTERY
REMOVAL”.
2. Place battery in a well ventilated area on a level
surface.
3. Using distilled water, refill cells as required to
cover cell plates of which can also be visualized
through the plastic battery case.
4. With cell caps r emoved, connect battery charger
to battery terminals. Red to positive (+) terminal
and black to negative (-) terminal.
5. Slow charge battery at 1 amp for 10 hours.
6. If battery will not accept charge or is partially
charged after 10 hours of charging at 1 amp,
replace with new battery.
4.6.4. BATTERY STORAGE
If mower is to be stored out of season on its rear
bumper, it is recom mended the battery be removed,
charged and stored.
1. Remove battery. Refer to Section “BATTERY
REMOVAL”.
2. Perform battery service.
3. Bring battery to full charge, if required.
4. Store battery in an area away from the RIDER on a
wood surface. DO NOT STORE BATTERY ON A
CONCRETE SURFACE.
4.6.5. NEW BATTERY PREPA RA TION
1. Remove battery from carton.
2. Place battery in a well ventilated area on a level
non-concrete surface.
3. Remove battery cell caps. Fill cells as required
with electrolyte (purchased separately) to proper
level. Fill to 3/16” above cell plates. Filling battery
with electrolyte will bring the battery to 80% charged
state.
4. With cell caps rem oved, connec t battery charger to
battery terminals; RED to positive (+) and BLACK to
negative (-) terminal.
IMPORTANT: 3/16” above cell plates is the recommended
level. DO NOT place anything in battery other than specified
electrolyte.
WARNING
DO NOT attempt to charge battery while installed on the
Riding Mower. DO NOT use “BOOST” chargers on the
battery. DO NOT OVERFILL!
5. Slow c harge the battery at 1 amp for 2 hours to
bring the battery to full charge.
6. Af ter char ging, check level of electrolyte and add
as needed to bring level to 3/16” above cell plates.
7. Reinstall cell caps.
8. Remove the hair pin and swivel from the deck
support to allow clearance for battery installation.
9. Slide battery partially into battery housing.
10. Connect positive (+) cable ( red) first, from wiring
harness to the positive terminal (+) on battery using
bolt and nut provided in hardware bag. Connect
negative (-) cable (black) last, to negative terminal (-)
on battery using bolt and nut. Apply a small amount of
grease over terminals to prevent corrosion.
11. Insert battery completely into battery housing.
12. Reinstall battery cover. See Figure 4.17.
13. Reinstall swivel and hair pin for deck support.
4.6.6. BATTERY TESTING
There are two types of battery tests: Unloaded and
Loaded. The unloaded test is the proc edur e that will
be discussed. It’s the sim plest and most comm only
used. An unloaded test is made on a battery without
discharging current. To perform unloaded testing,
check charge condition using either a hydrometer or
voltmeter.
1. Using a voltmeter, voltage readings appear
instantly to show the state of charge. Remember to
hook the positive lead to the battery’s positive
terminal, and the negative lead to the negative
terminal.
2. A hydrometer measures the specific gravity of
each cell. The specific gravity tells the degree of
charge; generally, a specific gravity of about 1.265
to 1.280 indicates full charge. A reading of 1.230 to
1.260 indicates the battery should be charged. The
chart on the next page shows the charge level as
measured by syringe float hydrometer, digital
voltmeter and five ball hydrometer.
WARNING
Shield the positive terminal with terminal cover
located on battery harness. T his p rev ent s metal f rom
touching the positive terminal, which could cause
sparks.
(Battery Testing Chart on Next Page)
26
Section 4 - ADJUSTMENTS & REPAIR
Battery Condition Chart
4.6.6. BATTERY TESTING
State of Charge Syringe Hydrometer Digital Voltmeter Five Ball Hydrometer
100% Charged w/ Sulfate Stop 1.280 12.80v Five Balls Floating
100% Charged 1.265 12.60v Four Balls Floating
75% Charged 1.210 12.40v Three Balls Floating
50% Charged 1.160 12.10v Two Balls Floating
25% Charged 1.120 11.90v One Ball Floating
0% Charged Less than 1.100 Less than 11.80v Zero Balls Floating
Air Cleaner Replace Element Engine Manual X**
Spark Plug Replace Plugs Engine Manual X
Fuel Filter Replace Filter Page 17 X
Engine Cooling
Clean Shrouds & Fins Engine Manual X**
System
Battery Check Electrolyte Page 26 X X
Battery Charge Battery Page 25, 26 X
Tires Check Pressures Page 6 X
Drive Belts Check For Wear And
Pages 14, 24 X X
Tension
Mower Blades Check For Wear And
Pages 23 X
Damage
Mower Deck Clean Debris
Page 13, 15 X X X
Accumulation
Lubrication Points Grease or Oil Pages 15 - 17 X X
Lubricate Chain Case
Check Grease Level Pages 16, 17 X X
& Transmission
Blade Brake
Stopping Time
Clutch/Brake System Check Clutch/Brake for
Check blade stopping
for proper operation
Pages 14, 19 X X
Page 14, 22 X X
proper operation
Reverse Lockout
Check function. Page 6 , 1 2 , 1 5 X X
Mechanism
*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
30
MAINTENANCE/REPLACEMENT PARTS
MAINTENANCE PARTS
Engine Speed Control (Briggs Engine) 2-2751
Engine Speed Control (Kohler Engine) 7-4320
Engine Speed Control (Honda Engine) 7-5089
Clutch/Brake Cable 2-2449
Clutch/Brake Cable (33” Deck Models Only) 7-4131
Brake Cable 7-1909
28” Cutter Blade (Standard - Not Air Lift Compatible) 3-5635
28” Cutter Blade (Standard - Air Lift Compatible) 1-9515
28” Cutter Blade (Mulching) 1-6980
28” Cutter Blade (Ninja - Quad Edge) 2-6453
30” Cutter Blade (Standard - Not Air Lift Compatible) N/A
30” Cutter Blade (Standard - Air Lift Compatible) 1-8069
30” Cutter Blade (Ninja - Quad Edge) 2-6565
33” Cutter Blade (Standard - Not Air Lift Compatible) 3-4168
33” Cutter Blade (Standard - Air Lift Compatible) 1-9523
33” Cutter Blade (Mulching) 1-6982
33” Cutter Blade (Ninja - Quad Edge) 2-4741
Air Lift Kit (28” & 33” Decks) 6-0480
Air Lift Kit (30” Decks) 6-0735
Engine to Cutting Deck Belt (28” & 30” Decks) 2-2252
Engine to Cutting Deck Belt (33” Decks) 4-3844
Rubber Drive Disc 5-3103
Parts Manual for Rear Engine Rider Series 22 & 23 06128
31
3 YEAR LIMITED WARRANTY
For three (3) years from pur chase date f or the original pur chaser 's res idential, non-com m erc ial use, SNAPPER, through
any authorized SNAPPER dealer will replace, free of charge (except for taxes where applic able), 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 or iginal purchaser's commercial, rental, or other non-residential 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.
All 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 item s 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 com ponent
part that has been altered or modified changing safety, performance, or durability.
Batteries have a one (1) year prorated warranty period with free replacement if requir ed during the first ninety (90) days
from the original purchas e date. SNAPPER will not be responsible for any installation cost incurred. T he battery warranty
only covers original equipment batteries and does not cover dam age 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 REPL ACEMENT 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: Please fill out the attached SNAPPER Product Registration Card immediately and mail to:
Snapper’s Product Registration Center, P.O. Box 1379, McDonough, Georgia 30253
32
PRIMARY MAINTENANCE
33
PRIMARY MAINTENANCE
34
PRIMARY MAINTENANCE
35
PRIMARY MAINTENANCE
36
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 ___________________________________________________________
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.snapper.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 1pm.
ENGINE EXHAUST, SOME OF ITS CONSTITUENTS, AND CERTAIN VEHICLE COMPONENTS CONTAIN OR
S KNOWN TO THE STATE OF CALIFORNIA TO CAUSE CANCER OR OTHER
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
REAR ENGINE RIDING MOWER
SERIES 23
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).