Safety Instructions & Operator’s Manual for

LAWN TRACTORHYDROSTATIC DRIVESERIES IMODELS
LT150H33IBV
LT150H38IBVMODEL NUMBER EXPLANATION
LT

150

MODEL DESIGNATIONENGINE HP
DRIVE SYSTEM TYPE
CUTTING WIDTH
LT – Lawn Tractor Model Designation
150 – 15.0 HP Engine Horse PowerH – Hydrostatic Transmission

H

38

I

B

V

ENGINE TYPE
ENGINE MODELSERIES DESIGNATION
33 – 33” Cutting Width Mower
38 – 38” Cutting Width Mower
I – Series DesignationB – Briggs & Stratton
V – Over Head Valve Type Engine

Thank you for buying a SNAPPER product! Before operating the Lawn Tractor, read and follow the“IMPORTANT SAFETY INSTRUCTIONS” on pages 2 thru 4, all other instructions contained in this manual andthe accompanying booklet “About Power Mower Safety”. Lawn mowers and all power equipment can bepotentially dangerous if used improperly. REMEMBER: SAFETY REQUIRES CAREFULL USE IN ACCORDANCEWITH INSTRUCTIONS AND COMMON SENSE!

COPYRIGHT © 2003
SNAPPER PRODUCTS INC.
ALL RIGHTS RESERVEDMANUAL No. 7-5536 (I.R. 3/25/03)

IMPORTANT SAFETY INSTRUCTIONSWARNING: This powerful cutting machine is capable of amputating hands and feet and can throw objects thatcan 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 themachine 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 CHILDRENPROTECTION AGAINST TIPOVERS

Tragic accidents can occur if the operator is not alert to thepresence of children. Children are often attracted to themachine and the mowing activity. Never assume thatchildren will remain where you last saw them.
1. KEEP children out of the mowing area and under thewatchful care of a responsible adult.
2. DO NOT allow children in yard when machine isoperated (even with the blade OFF).
3. DO NOT allow children or others to ride on machine,
attachments or towed equipment (even with theblades OFF). They may fall and be seriously injured.
4. DO NOT allow pre-teenage children to operatemachine.
5. ALLOW only responsible adults & teenagers withmature judgment under close adult supervision tooperate machine.
6. DO NOT operate blades in reverse. STOP BLADES.
LOOK and SEE behind and down for children, petsand hazards before and while backing.
7. USE EXTRA CARE when approaching blind corners,
shrubs, trees, or other objects that may obscurevision.

(Continued From Previous Column)
6. KEEP A SAFE DISTANCE (at least 3 feet) away fromedge 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 accordancewith instructions supplied 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. Chose a low enough speed setting so that you will nothave to stop or shift on a slope. Tires may lose traction
on slopes even though the brakes are functioning
properly.
12. DO NOT operate machine under any condition wheretraction, steering or stability is doubtful.
13. Always keep the machine in gear when going downslopes. DO NOT shift to neutral (or actuate hydro rollrelease) and coast downhill.

PROTECTION AGAINST TIPOVERSPREPARATION

Slopes are a major factor related to loss-of-control and tipover 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 slopes 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 faceof slopes. Operate up and down. Practice on slopes
with blades off.
4. AVOID starting, stopping or turning on slopes. If
machine stops going uphill or tires lose traction, turnblades OFF and back slowly straight down the slope.
5. STAY ALERT for holes and other hidden hazards. Tallgrass can hide obstacles. Keep away from ditches,
washouts, culverts, fences and protruding objects.

1.

Read, understand, and follow instructions andwarnings in this manual and on the machine, engine
and attachments. Know the controls and the properuse of the machine before starting.
2. Only mature, responsible persons shall operate themachine and only after proper instruction.
3. Data indicates that operators age 60 and above, areinvolved 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 andvapors are explosive. Use only an approved fuelcontainer. DO NOT remove fuel cap or add fuel withengine 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 tolearn controls and develop skills.
6. 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 withmowing.

2

IMPORTANT SAFETY INSTRUCTIONSPREPARATIONOPERATION(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 devices frequently forproper operation and location.
9. Make sure all safety decals are clearly legible.
Replace if damaged.
10. Protect yourself when 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 themachine into a trailer or truck.
13. Check grass catcher components frequently forsigns of wear or deterioration and replace asneeded to prevent injury from thrown objects
going through weak or worn spots.

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 isset.
3. DO NOT leave machine with engine running.
STOP engine, STOP blades, SET brake, andRemove key before leaving operators positionof 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 grasscatcher or unclogging mower to prevent loss offingers or hand.
6. Blades must be OFF except when cutting grass.
Set blades in highest position when mowing
over rough ground.
7. Keep hands and 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 grasscatcher or guards in place. DO NOT point
discharge at people, passing cars, windows ordoors.
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 maintaincontrol during speed and directional changes.
14. Exercise CAUTION when pulling loads. Limit loads
to those you can safely control and attach loads tohitch plate as specified with SNAPPER attachment
instructions.
15. On slopes, the weight of the towed equipment may
cause loss of traction and loss of control. When
towing, travel slowly and allow extra distance tostop.
16. DO NOT operate engine in enclosed areas.
Engine exhaust gases contain carbon
monoxide, a deadly poison.

SAFE HANDLING OF GASOLINE
To avoid personal injury or property damage, use
extreme care in handling gasoline. Gasoline isextremely flammable and the vapors are explosive
1. Extinguish all cigarettes, cigars, pipes and othersources of ignition.
2. Use only an approved fuel container.
3. DO NOT remove fuel cap or add fuel with theengine running. Allow the engine to cool before
refueling.
4. DO NOT refuel the machine indoors.
5. DO NOT store the machine or fuel container
inside where there is an open flame, spark or
pilot light such as on a water heater or otherappliances.
6. DO NOT fill fuel containers inside a vehicle oron a truck or trailer bed with a plastic liner.
Always place the containers on the groundaway from the vehicle before filling.
7. Remove gas-powered equipment from thevehicle or trailer and refuel it on the ground. If
this is not possible, then refuel equipment using
a portable container, rather than a gasoline
dispenser nozzle.
8. DO NOT start gas powered equipment in
enclosed vehicles or trailers.
9. Keep the nozzle in contact with the rim of thefuel tank or container opening at all times until
fueling is complete. DO NOT use a nozzle lockopen device
10. If fuel is spilled on clothing, change clothing
immediately.
11. Never overfill a fuel tank. Replace fuel cap andtighten securely.

3

IMPORTANT SAFETY INSTRUCTIONSMAINTENANCE
1. DO NOT store machine or fuel container insidewhere 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 the reachof 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 fromopen 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 whenrunning 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 plugwire(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 inmanual to prevent controls from binding.
12. Mower blades are sharp and can cut. Wrap theblades or wear heavy leather gloves and use
CAUTION when handling them.
13. DO NOT test for spark by grounding spark plugnext 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 havethe dealer install any new safety devices.
15. Use only genuine SNAPPER replacement parts
to assure that original standards aremaintained.

4

TABLE OF CONTENTSIMPORTANT SAFETY INSTRUCTIONS .......... 2 - 4

SECTION 4 ADJUSTMENTS & REPAIR........................... 18-33

TABLE OF CONTENTS ........................................ 5

Engine Adjustments & Repair ..........................18
Mower Deck & Component Adjustments ........18
Blade Brake Adjustment ...................................1833” Deck Blade Brake Adjustment ...............1838” Deck Blade Brake Adjustment ...............18
Blade Belt Adjustment (33” Deck) ...................19
Blade Belt Adjustment (38” deck)....................19
Adjusting Mower Blade (33” Deck) .............19-20
33” Side To Side ...........................................19-20(Deck Level Adjustment)
33” Front To Rear Sector Plates ......................21(Deck Level Adjustment)
33” Front To Rear Front Lift Rod .....................21(Deck Level Adjustment)
38” Side To Side ................................................22(Deck Level Adjustment)
38” Front To Rear ..............................................23(Deck Level Adjustment)
Brake Adjustment - HYDRO DRIVE..................23
Steering Adjustment .........................................24
Shifter Adjustment ............................................24
Traction Drive Belt Adjustment........................25
Mower Blade Service ...................................26-27
Blade Wear Limits ..........................................26
Mower Blade Sharpening ..............................26
Mower Blade Replacement.......................26-27
Traction Drive Belt Removal/Replace.........27-29
Blade Belt Removal & Replacement ................30
33” Deck Drive Belt ........................................30
38” Deck Drive Belt ........................................30
Battery Service .............................................31-32

SECTION 1 - FAMILIARIZATION ......................... 6
Components ........................................................6
Controls ................................................................6

SECTION 2 OPERATING INSTRUCTIONS ........................ 7-12Pre-start Checklist ..............................................7
Operator’s Seat Adjustment ..............................7
Starting & Stopping Engine ................................8
Starting & Stopping Wheel Drive .......................9Starting & Stopping Mower Blades.............. 9-10
Parking Brake.....................................................10
Cutting Height Adjustment ...............................10
Rolling Tractor With Engine Off .......................11
Reverse Lockout Mechanism ...........................12

SECTION 3 MAINTENANCE INSTRUCTIONS ................. 13-17
Service - After First 5 Hours ........................13
Change Engine Oil..........................................13
Check Blade Brake .........................................13
Check Mower Blade.................................. 13-14
Check Deck Drive Belt ...................................14Service – Every 25 Operating Hours .........14
Mower Components .......................................14
Check Blade Brake .........................................14
Lubrication (Tractor) ................................ 15-16
Front Wheel Bearings ....................................15
Axle Spindles ..................................................15
Clutch/Brake Pivot..........................................15
Steering Sector Gear ......................................15
Steering Shaft .................................................15
Steering Drag Link..........................................15
Steering Tie Rod .............................................16
Blade Engagement Mechanism.....................16
Park Brake Lever ............................................16
Deck Lift Mechanism......................................16
Service - Annually..................................... 16-17
Engine .............................................................16
Fuel Filter................................................... 16-17
Spark Plug .......................................................17
Hydrostatic Transmission Oil........................17
Safety Interlock System Checks ...................17

AVAILABLE ACCESSORIES ..................................33
SECTION 5 ELECTRICAL SYSTEM ...................................... 34
Schematic - Briggs & Stratton..........................34

TROUBLESHOOTING GUIDE ...................... 35-36
MAINTENANCE SCHEDULE ............................. 37
MAINTENANCE PARTS ..................................... 37
WARRANTY.................................................... 38

PRIMARY MAINTENANCE............................ 39-42

IMPORTANTThe figures and illustrations in this manual areprovided for reference only and may differ from yourspecific model. Contact your Snapper dealer if you
have questions.

PRODUCT REGISTRATION FORM ................... 435Section 1 - FAMILIARIZATIONCONTROL PANEL
PARK
BRAKE
LEVER

FAST

CHOKE

SLOW
CLUTCH/BRAKE
PEDAL

DOWN

KEY
CUTTING HEIGHT
ADJUSTMENT LEVER

ENGINE SPEEDCONTROLOPERATOR’SSEATSTEERING
WHEEL

SEAT
ADJUSTMENTKNOBDASHBOARDCONTROLSSPEEDCONTROL
LEVER

FUEL TANK(UNDER HOOD)

BATTERY(UNDER SEAT)HOOD
OVERRIDE
LEVER
HEADLIGHTSBLADEENGAGEMENTLEVERDISCHARGE
DEFLECTOR

ENGINE

MOWING DECK(33” SHOWN)

FIGURE 1.1
Study the Important Safety Instructions, this Operator’s
Manual and Engine Owner’s Manual before operating
this machine. Keep these manuals available for futurereference.

COMPONENTS
The nomenclature drawings above, illustrate theessential components of the SNAPPER Lawn Tractor. It
is recommended that all operators of this equipment
become thoroughly familiar with the components andtheir operation BEFORE OPERATING.
Specific details involving the engine are found in theseparate Engine Owner’s Manual.

CONTROLS
All operators should be acquainted with the operator’s
controls before attempting start-up or operation of theLawn Tractor. See the Control Panel drawing above.
6

Section 2 - OPERATING INSTRUCTIONS
2.1 PRE-START CHECKLISTMake the following checks and perform service as
required before each start-up.
2.1.1. Check tires and add air as needed to bringpressure to 12 P.S.I. in front tires and 12 P.S.I. inrear tires.

FUEL TANK

2.1.2. Check guards, deflectors and covers to makesure all are in place and securely tightened. If guards
are missing or damaged, replace BEFORE using
mower.
TIGHTEN CAPAFTERFILLING TANK

2.1.3. Check engine oil and add oil as needed tobring level up to, but not over, the FULL mark. Refer toengine owner’s manual for oil specifications. See Figure
2.1.

SAFE
LEVEL
AREA

FIGURE 2.2
2.2 OPERATOR’S SEAT ADJUSTMENT
2.2.1. FRONT TO REAR ADJUSTMENT
1. With the engine "OFF", raise operator's seat andloosen the two adjusting knobs on the seat support.
Lower the seat. Sit in the operator's seat and slide theseat forward or backward until the clutch/brake pedal
can be fully depressed comfortably. Raise seat andtighten the adjusting knobs to secure seat in position.
See Figure 2.3.

FIGURE 2.1
2.1.4. Check blade engagement lever to insure it
operates properly. The blade engagement levermust be moved manually from “ON” to “OFF” tostop blade.

LOOSEN ADJUSTINGKNOBS TO ADJUSTSEAT

2.1.5. Clean exterior surfaces of cutting deck, engine
and tractor of any accumulation of dirt, grass, oil, etc.
Keep engine air intake screens and cooling fins clean at
all times.
2.1.6. With engine “OFF” move the tractor outside
and add fuel to the fuel tank. Securely tighten fuel cap
after refueling. Refer to engine owner’s manual for fuelspecifications. See Figure 2.2.
2.1.7. Check Reverse Lockout Mechanism. With
engine “OFF”, raise blade engagement lever to "ON".
The speed control lever cannot be shifted into
“Reverse”.

FIGURE 2.3

7

Section 2 - OPERATING INSTRUCTIONS
2.3 STARTING & OPERATION
2.3.1. STARTING ENGINE
1. Take a comfortable position in seat of machine,
look around to make sure that the area you are going to
mow is clear of people, children and pets. Take note ofany stationary obstacles!

5. Choke engine for cold starting by moving engine
speed control to "CHOKE" position. Little or no
choking will be needed when restarting a warm
engine. Insert key in switch. Turn key to "START"
position to crank engine and hold until engine starts,
then release key to “RUN” position. See Figure 2.6.

NOTE: The interlock system will prevent the engine fromstarting if the blade engagement lever is in the "ON" (up)position or if the clutch/brake pedal is not fully depressed. If
the interlock system ever fails to work, DO NOT OPERATE
the tractor until the interlock has been repaired.

NOTE: DO NOT crank engine for more than fiveseconds at a time. This will help prevent the starter fromoverheating and/or running down the battery. If cranking
time is more than five seconds, locate and correct causeof starting problem.

2. Push blade engagement lever down to the "OFF"position. See Figure 2.4.

6. After engine starts, release key, move theengine speed control to "FAST" position and allow
engine to warm up before proceeding. See Figure
2.6.

BLADE
ENGAGEMENT
LEVER
CHOKE
POSITION

LIGHT
SWITCHFAST

OFF
PUSH BLADEENGAGEMENT LEVER
DOWN TO “OFF” TO
START ENGINESLOWFIGURE 2.4
ENGINESPEED
CONTROL

3. Depress the clutch/brake pedal fully. See Figure 2.5.
4. Move speed control lever to neutral.
NOTE: The seat interlock will shut off the engine if theoperator gets off the seat without setting the parking
brake or if the blade is running. If the interlock ever fails
to work, DO NOT OPERATE the tractor until theinterlock has been repaired.

KEY

FIGURE 2.6

CLUTCH/BRAKE PEDALWARNING
DO NOT leave machine with engine running. Stop
engine. Stop blade. Set parking brake. Remove key.
PARK BRAKE
LEVER

DOWN

PUSH PEDAL ALL THE
WAY DOWN TO STARTENGINEFIGURE 2.5
8

Section 2 - OPERATING INSTRUCTIONS
2.3 STARTING & OPERATION (continued)
2.3.2. STARTING WHEEL DRIVE
1. Shift speed control lever to neutral.
2. Start engine. Refer to Section “STARTING
ENGINE”.
3. Release clutch/brake pedal.
4. Slowly shift speed control lever forward forforward motion or to the rear for reverse motion. See
Figure 2.7.

2.4 STOPPING ENGINE, BLADE, & WHEEL DRIVE
2.4.1. STOPPING ENGINE
1. Stop engine by turning key to the "OFF" position.
See Figure 2.9.

RUN
OFF

START

SPEED CONTROL LEVER

NEUTRAL
KEY

REVERSEFIGURE 2.9
2.4.2. STOPPING WHEEL DRIVE
1. Fully depress clutch/brake pedal to stop wheel
drive. See Figure 2.10.

FORWARD
SPEEDSFIGURE 2.7

CLUTCH/BRAKE
PEDAL

2.3.3. STARTING MOWER BLADE
1. Start engine. Refer to Section “STARTING
ENGINE”.
2. Raise blade engagement lever to "ON". See
Figure 2.8.
PULL BLADEENGAGEMENT LEVER UP
TO “ON” TO START
MOWER BLADE(S)FULLY DEPRESS
CLUTCH/BRAKE PEDAL TO
STOP WHEEL MOTIONON

FIGURE 2.10
BLADE
ENGAGEMENT
LEVER

FIGURE 2.8

WARNING
DO NOT operate blades in reverse. STOP BLADES.
LOOK and SEE behind and down for children, petsand hazards before and while backing.

9Section 2 - OPERATING INSTRUCTIONS
2.4.5. RELEASING PARK BRAKE
1. Fully depress clutch/brake pedal. Move park brakelever “DOWN” to release park brake. Releaseclutch/brake pedal. See Figure 2.13.

2.4 STOPPING
2.4.3. STOPPING MOWER BLADE
1. Stop mower blade by moving blade engagement
lever down to the "OFF" position. See Figure 2.11.

PARK BRAKE
LEVER

CLUTCH/BRAKE
PEDAL

BLADE
ENGAGEMENT
LEVER

OFF
FULLY DEPRESS
CLUTCH/BRAKEPEDALFIGURE 2.11

WARNING

FIGURE 2.13

Once blade is disengaged, it should come to acomplete stop in 5 seconds or less. If the blade
continues to rotate after 5 seconds, the blade brakemust be adjusted. Refer to Section “BLADE BRAKE
ADJUSTMENT” for adjustment procedures or return
machine to dealer for adjustment. DO NOT CONTINUE
to operate mower until blade brake is properly adjusted.

2.5.

CUTTING HEIGHT ADJUSTMENT
1. Depress lock button on cutting height adjustment
lever. See Figure 2.14.
DEPRESSLOCK BUTTON

2.4.4. SETTING PARK BRAKE
1. Fully depress clutch/brake pedal.
2. Move park brake lever up into slot. See Figure 2.12.
PUSH PEDAL ALL
THE WAY DOWN

CUTTING
HEIGHT
ADJUSTMENTLEVER

PARK BRAKELEVER

HIGHEST CUTLOWEST CUT

FIGURE 2.14
2. Raise or lower deck to any of six positions as
desired. Release lock button.

MOVE PARK BRAKE
LEVER “UP” TOENGAGE PARK BRAKEWARNING
FIGURE 2.12

DO NOT park machine on slopes.

10Section 2 - OPERATING INSTRUCTIONS
2.6. ROLLING TRACTOR WITH ENGINE OFF
2.6.1. Rolling Hydro Models
1. With engine "OFF", move to rear of tractor.
2. Pull the roll release control all the way out todisengage the hydro transmission. See Figure 2.15.

WARNING

PULL ROLL RELEASECONTROL ALL THE WAY
OUT TO DISENGAGEHYDRO TRANSMISSION

DO NOT disengage the hydro transmission and coast
down slopes. DO NOT use Roll Release Control todisengage the hydro transmission unless machinemotion can be controlled and engine is off.

ROLL RELEASECONTROL

PUSH ROLL RELEASECONTROL ALL THE WAY
IN TO ENGAGE HYDROTRANSMISSIONROLL RELEASECONTROL

FIGURE 2.15
3. Move tractor to desired location.
4. Push roll release control all the way in to engagehydro transmission. See Figure 2.15.
5. Set park brake.
NOTE: The transmission will not propel the tractor if it isleft in the "ROLL" position.

11Section 2 - OPERATING INSTRUCTIONS
2.7. REVERSE LOCKOUT MECHANISM

2.7.1. Reverse Lockout Mechanism Override
1. Stop machine. Stop blades.
2. Depress and hold Override Lever.
3. Raise blade engagement lever to "ON".
4. Release override lever.

Data indicates that tragic back-over accidents occur
each year. These accidents usually involve unsupervisedchildren. Many times these children have been given
rides on the machine and have been trained to view thispotentially dangerous piece of machinery as fun rather
than being taught how to avoid danger.

WARNINGLOOK and SEE behind and down for children, petsand hazards before and while backing.

This riding mower has a Reverse Lockout Mechanism.
This mechanism prevents the mower from being shifted
into reverse with the blades running. To shift into reverse
you must first stop the blades and then shift to reverse. It
is our recommendation that this mechanism remainfunctional and the operator of this equipment develop the
habit of never backing up with the blades running. As the
Safety Instructions Indicate, DO NOT operate blades inreverse. STOP BLADES, LOOK AND SEE BEHIND
AND DOWN for children, pets and hazards before
and while backing.

IMPORTANT! DO NOT use the Reverse Lockout
Mechanism Override as the normal operating mode. To
return to the Reverse Lockout Mechanism mode, movethe blade engagement lever down to the “OFF” position.
The Override will reset to Reverse Lockout.
2.7.2. Check the Reverse Lockout Mechanism
Before each use, check the Reverse Lockout
Mechanism for proper function. Perform the following
check with the engine “OFF”.
1. With engine “OFF”, raise blade engagement
lever to "ON".
2. The Reverse Lockout Mechanism must
prevent the speed control lever from going into
reverse.

We realize that this could cause a change to yourprevious 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 blades and will allow
reverse operation until the blade engagement lever is
moved to the “OFF” position, at which time the system
will return to its Reverse Lockout mode. This feature
should never be selected unless you are absolutely surethat no children or others are present in the mowing area
and that all children are away and supervised by a
responsible adult.

WARNING
DO NOT operate machine if Reverse Lockout
Mechanism is not functioning properly. Contact your
SNAPPER dealer immediately for assistance.

DANGER
LOOK and SEE behind and down for children, petsand hazards before and while backing.
BLADES must be turned off before backing machine.
DO NOT allow children on machine (even withblades off) or in yard when mowing.

12Section 3 - MAINTENANCE
3.1 INTRODUCTION
To retain the quality of the Tractor, 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 Tractor,
always mention the model and serial number.
SNAPPER recommends returning the Tractor to an
authorized SNAPPER dealer annually for inspection
and addition of any new devices, which might upgrade
the safety of the Tractor. For the nearest SNAPPER
dealer in your area, check the yellow pages under theheading LAWN MOWERS. For engine parts andservice, look for the engine manufacturer’s dealers
under the heading, ENGINES - gasoline.

4.
5.

Check blade for straightness. Refer to Section“ADJUSTING MOWER BLADE”.
Check torque of blade mounting bolts. Torque to:33” deck – 30 to 40 ft. lbs. See Figure 3.2.
38” deck – 70 to 80 ft. lbs. See Figure 3.3.

OIL
FILLER
TUBE

3.2 SERVICE - AFTER FIRST 5 HOURSWARNINGFASTEX™
OIL DRAINDO NOT attempt any adjustments, maintenance orservice with the engine or blades running. STOP blades.
STOP engine. Set park brake. Remove key. Remove
spark plug wire from spark plug and secure wire awayfrom spark plug. Engine and components can be
extremely hot. Avoid burns by allowing engine andcomponents sufficient time to cool.

ROTATE COUNTERCLOCKWISE AND PULLOUT TO OPEN.
PUSH IN AND ROTATECLOCKWISE TO CLOSE.
NOTE: BRIGGS &STRATTON ENGINEPICTURED

3.2.1. CHANGE ENGINE OIL
The engine is equipped with a Fastex™ oil drain.
1. Rotate drain body counterclockwise and pull out toopen drain. See Figure 3.1.
2. Drain oil into a 2 quart container placed beneathend of oil drain.
3. After all oil has drained, push drain body "IN" androtate clockwise to close.
4. Fill engine with new motor oil as specified in engine
owner's manual.

FIGURE 3.1

WARNING
The following procedure requires the engine andblades to be operated. Exercise extreme caution. Clear
area of loose parts & tools first. Only operate blades
when seated in the operator’s seat.
3.2.2. CHECK BLADE BRAKE
1. Check blade brake for proper function. Blades
should stop rotating in 5 seconds or less after moving
the blade engagement lever down to the OFF position.
2. If blades continue to rotate longer than 5 seconds
do not operate machine. Refer to Section “BLADE
BRAKE ADJUSTMENT” or contact your SNAPPER
dealer for assistance.

TORQUE 33” BLADE TO
30 TO 40 FT. LBS.

FIGURE 3.2

WARNING

3.2.3. CHECK MOWER BLADE
1. Remove deck from tractor.
2. Carefully position deck to access blade.
3. Check blade for sharpness, wear and damage.
Refer to Section “BLADE WEAR LIMITS”.

Blades must stop rotating in 5 seconds or less afterblades have been turned off. DO NOT operate machine
until blade brake has been adjusted and functioning
properly. Contact your SNAPPER dealer for assistance.

13Section 3 - MAINTENANCE
3.2.3. CHECK MOWER BLADE (Continued)

2. Change air filter. Pull up and rotate the air cleaner
latch to remove cleaner cover. See Figure 3.5.
IMPORTANT: When cover is removed, you areviewing the carburetor side of the air filter, which willappear clean. Remove filter and pre-cleaner for
inspection.
AIR CLEANERLATCHTORQUE 38” BLADES TO
70 TO 80 FT. LBS.

FIGURE 3.3
3.2.4. CHECK 33" DECK DRIVE BELT
1. With engine "OFF", move blade engagement
lever to "ON".
2. Measure blade cable extension spring. Springshould extend 1" +/-1/8" for proper belt tension. See
Figure 3.4.

AIR CLEANERCOVER

FIGURE 3.5
2. Refer to engine owner's manual for cleaning andservice instructions. Remove and clean engine air
pre-cleaner. Remove and replace engine air cleaner.
See Figure 3.6. Install pre-cleaner and air cleaner
per engine owner’s manual.

BLADE CABLE
EXTENSION SPRING

AIR PRECLEANERX

X + 1” +/- 1/8”

FIGURE 3.4
AIR CLEANER

3. To adjust tension, Refer to Section “BLADE
BELT ADJUSTMENT”.

FIGURE 3.6

3.2.5. CHECK 38” DECK DRIVE BELT
1. On 38" model, check belt for excessive wear ordamage and replace if necessary, there are no
adjustments on this model.
3.3

3. Reinstall air cleaner cover. Insert tabs located at
the bottom of the cover into corresponding slots inengine cover. Position cover and engage latch over
cover and rotate and push down to lock.

SERVICE - EVERY 25 OPERATING HOURS
3.3.1. CHECK ENGINE
1. Change engine oil. Refer to Section “CHANGE
ENGINE OIL”. Refer to engine owner's manual for oil
specification.
14

Section 3 - MAINTENANCE
3.3.2. MOWER COMPONENTS
1. Check deck drive belt for proper tension. Refer
to Section “CHECK DECK DRIVE BELT”.
2. Check blades for sharpness, wear, damage andtorque. Refer to Section “MOWER BLADE
REPLACEMENT”.
3. Check mower deck for proper levelness. Refer
to Section “MOWER DECK ADJUSTMENT LEVELNESS”.
4. Clean mower deck.
a. Remove key from ignition switch.
b. Remove deck.
c. Clean underside of mower deck, removing all
accumulation of grass clippings and debris.
d. Clean top of deck, removing all grass clippingsand debris.
5. 33" and 38” blade spindle lubrication.
a. Lubricate spindle with 1 to 3 shots of general
purpose grease from grease gun.
6. Lubricate all mower deck linkage pivot points
with a light coat of motor oil.

3. Clutch/Brake Pivot
The clutch/brake pivot is located on the left handunderside of the tractor and is lubricated with one
shot of general purpose grease. See Figure 3.8.

3.3.3. CHECK BLADE BRAKE
1. Refer to Section “CHECK BLADE BRAKE”.

4. Steering Sector Gear
Lubricate with a light coat of general purpose grease.
See Figure 3.9.

CLUTCH/BRAKEPIVOT LUBRICATION
FITTING

FIGURE 3.8

3.3.4. TRACTOR LUBRICATION
1. Front Wheel Bearings
Lubricate each front wheel bearing through thegrease fitting on wheel hub. Using general purpose
grease in a grease gun, add grease until grease
purges from bearing. See Figure 3.7.
2. Axle Spindles
Lubricate each axle spindle with 1 to 3 shots ofgeneral purpose grease. See Figure 3.7.

FUEL TANKSTEERING
SECTORNOTE: The right hand spindle fitting faces forward andthe left hand spindle fitting faces to the rear.

SECTORGEAR

AXLE SPINDLE
LUBRICATION
FITTING

FIGURE 3.9
5. Steering Shaft
Lubricate steering shaft wear points with a light coatof SAE30 oil.

FRONT WHEELBEARING LUBRICATION
FITTING

FIGURE 3.7

15

Section 3 - MAINTENANCE
6. Steering Drag Link
Lubricate both ends of steering drag link with a small
amount of SAE30 oil. See Figure 3.10.

LUBRICATECOMPONENTS ON
UNDERSIDE OF
TRACTORDRAG LINKLUBRICATION
POINT

BLADE
ENGAGEMENT
LEVER

FIGURE 3.10
FIGURE 3.12

3.3.4. TRACTOR LUBRICATION(Continued From Previous Page)
7. Steering Tie Rod
Lubricate both ends of steering tie rod with a small
amount of SAE30 oil. See Figure 3.11.

9. Park Brake Lever
Using general purpose grease, lubricate the park
brake lever mechanism pivot points, which arelocated on the left hand underside of tractor. See
Figure 3.13. Mechanism with a thin coat of 30 wt.
motor oil.

LUBRICATE
BOTH ENDS
OF TIE RODPARK BRAKE
LEVER

LUBRICATE COMPONENTS
ON UNDERSIDE OF TRACTOR

FIGURE 3.13

FIGURE 3.11

10. Deck Lift Mechanism
Lubricate all wear and pivot points of the deck lift

8. Blade Engagement Mechanism
Using SAE30 oil, lubricate the blade engagement
mechanism pivot points, which are located on the
R.H. underside of tractor. See Figure 3.12.

3.4 SERVICE - ANNUALLY
Perform all maintenance as described in Section“SERVICE - EVERY 25 OPERATING HOURS”. Also
see service schedule.
3.4.1. ENGINE
1. Service engine according to engine owner's
manual.

16

Section 3 - MAINTENANCE
3.4 SERVICE - ANNUALLY
3.4.2. FUEL FILTER
1. Service fuel filter as instructed below, on COLDENGINE ONLY!

3.4.3. SPARK PLUG
Remove and replace engine spark plug. Refer toengine owner's manual for correct replacement plugand gap specifications.

NOTE: It may be necessary to drain the fuel tank before
removing fuel filter to prevent spillage of gasoline.

3.4.4. HYDROSTATIC TRANSMISSION OIL
The hydrostatic transmission does not require
maintenance. If any problems arise return
immediately to an authorized Snapper dealer.

2. Locate fuel filter. Remove hose clamps and fuelhoses from both sides of fuel filter. See Figure 3.14.

3.5. SAFETY INTERLOCK SYSTEM CHECKSThis machine is equipped with an electrical safety
interlock system that is provided for the safety of theoperator and others. All safety devices must be in placeand functioning properly before operating the machine.
Perform the following interlock system checks
periodically during the operating season. Contact yourauthorized Snapper dealer if you have questions.

FUEL TANKFUEL FILTERWARNING
DO NOT operate machine if any safety interlock orsafety device is not in place and functioning
properly. DO NOT attempt to defeat, modify or
remove any safety device.

REMOVE HOSE
CLAMPSENGINE MUST NOT START IF:
1) Clutch/Brake Pedal not fully depressed OR,
2) Blade Engagement Lever in the “ON” blades
engaged position.
ENGINE SHOULD START IF:
1) Blade Engagement Lever in the “OFF” bladesdisengaged position AND,
2) Clutch/Brake Pedal fully depressed.
ENGINE MUST BEGIN TO STOP IF:
1) Operator rises off of seat with Blade
Engagement Lever in “ON” blades engaged
position OR,
2) Operator rises off of seat with Clutch/Brake
Pedal not fully depressed.
IMPORTANT: Engine and blades will continue to run
if Operator becomes seated prior to engine coming
to a complete stop. After coming to a complete stop,
the Blade Engagement Lever must be moved to the“OFF” position and the Clutch/Brake Pedal fully
depressed before engine can be restarted. Engine
and blades must come to a complete stop within 5
seconds after the operator rises off the seat or theblade switch is moved to the “OFF” position.

FIGURE 3.14
3. Install new fuel filter part number 1-4359. See
Figure 3.15.

NEW FUEL FILTERPART NUMBER 1-4359

FIGURE 3.15
4. Fill fuel tank with fresh gasoline. Refer to engine
owner's manual for fuel specifications.

\17Section 4 - ADJUSTMENT & REPAIRWARNING
DO NOT attempt any adjustments, maintenance orservice with the engine or blade running. STOP blade.
STOP engine. Set brake. Remove key. Remove spark
plug wire from spark plug and secure wire away fromspark plug. Engine and components can be extremely
hot. Avoid burns by allowing engine and components
sufficient time to cool.
4.1 ENGINE ADJUSTMENTS & REPAIR
Refer to the engine owner's manual for thoseadjustments and/or repairs that can be made by theowner.
1-3/16”

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 anauthorized SNAPPER dealer.

FIGURE 4.1
38” DECK BLADE BRAKE ADJUSTMENT
The 38” deck requires no blade brake adjustment.
Blades must stop in 5 seconds or less after blades havebeen turned off. If blades continue to rotate, contact yourauthorized SNPPER dealer for assistance.

WARNING
Blades must stop rotating in 5 seconds or less afterblades have been turned off. DO NOT operatemachine until blade brake has been adjusted andfunctioning properly. Contact your SNAPPER dealer
for assistance.

WARNING
DO NOT operate machine until blade brake has been
repaired and functioning properly. If blade stop time
can not be achieved with the adjustment proceduredescribed above, take machine immediately to an
authorized SNAPPER dealer.

4.2.1. BLADE BRAKE ADJUSTMENT
The blade brake when properly adjusted will stop
blade rotation in 5 seconds or less when the blade
engagement lever is moved to the OFF position.
33” DECK BLADE BRAKE ADJUSTMENT
1. Blade brake adjustment is made by turning theadjustment nut on the threaded brake rod. The brakeis initially set with 1-3/16” of thread exposed beyond
the nut. See Figure 4.1. Verify this setting before
attempting any adjustments. To tighten the brake(stop blade rotation quicker) turn the adjustment nut
clockwise – ONE TURN ONLY.
IMPORTANT: DO NOT over-tighten blade brake.
Tighten one turn and check function of brake. If blade
stop time remains over 5 seconds, turn adjustment
nut 1 to 2 turns clockwise. If blade stop time remains
over 5 seconds, DO NOT OPERATE machine.
Contact your SNAPPER dealer for assistance.

18Section 4 - ADJUSTMENT & REPAIR
8. (33" Deck) To adjust tension, remove extension rod
mounting bolt and nut. See Figure 4.4.
9. Move extension rod to next hole towards rear ofdeck and secure with mounting bolt and nut.
10. Measure extension spring with blade engagement
lever in the "ON" and "OFF" positions. See Figure 4.3.
Continue adjustment until tension is correct.

WARNING
DO NOT attempt any adjustments, maintenance orservice with the engine or blade running. STOP blade.
STOP engine. Set brake. Remove key. Remove spark
plug wire from spark plug and secure wire away fromspark plug. Engine and components can be extremely
hot. Avoid burns by allowing engine and components
sufficient time to cool. If deck front to rear level is notcorrect, this could cause blade belt problems.

IMPORTANT: Blade brake function must be verified
after performing blade belt adjustment.
11. Check blade brake. Refer to Section “CHECKBLADE BRAKE”. Blades must stop rotating in 5
seconds or less when turned off.

4.2.2. BLADE BELT ADJUSTMENT – 33” DECK
1. Move tractor to a firm, level surface.
2. Turn engine "OFF". Remove key.
3. Move blade engagement lever down to "OFF". See
Figure 4.2.
4. Place deck in mid cutting position.
5. Check front to rear level. Refer to Section “33 DECKLEVEL ADJUSTMENT (FRONT TO REAR)”.
MOVE BLADEENGAGEMENT
LEVER TO “OFF”

LEAST TENSIONMOST TENSIONEXTENSIONROD

FIGURE 4.2

MOUNTING
NUT & BOLTIMPORTANT: If deck front to rear level is not correct, this
could cause blade belt problems.
6. Move blade engagement lever to "ON".
7. Measure blade cable extension spring. The length of
the spring (x) should increase by 1” (+/-1/8”). See Figure
4.3.

FIGURE 4.4
4.2.3. BLADE BELT ADJUSTMENT – 38” DECKThe blade belt on the 38” deck requires no tension
adjustment. If the belt becomes worn or damaged it must
be replaced. Refer to Section “BLADE BELT REMOVAL &REPLACEMENT”.

BLADE CABLE
EXTENSIONSPRING

4.2.4.

ADJUSTING MOWER BLADE – 33” DECK
(33" Decks Only; no adjustment for 38")
1. Select a point on the deck and mark for reference.
2. Mark blade tips as “A” and “B”.
3. Rotate blade until blade tip “A” is at deckreference mark4. Measure the distance between deck lip andblade tip. Note the measurement. See Figure 4.5.

X

X + 1” +/- 1/8”

(Continued on next page)
FIGURE 4.3

19

Section 4 - ADJUSTMENT & REPAIR
4.2.4. ADJUSTING MOWER BLADE – 33” DECK(Continued from previous page)

4.2.5. 33" DECK LEVEL ADJUSTMENT (SIDE TO SIDE)NOTE: Adjust tire pressure, 12 P.S.I. front and rear,
before adjusting deck.
1. Move tractor to a firm, level surface.
2. Turn engine "OFF". Remove key.
3. Place a piece of angle iron under center rear of deck.
4. Remove hair pins and washers securing rear of deck
to sector plates. See Figure 4.7.
5. Slide sector off of pins and carefully lower deck onto
angle iron.
6. Rotate blade(s) until blade tips are at each side ofdeck.
7. Measure distance from blade tip to floor on each sideof deck. Blade tips should be within 1/8" of each other forthe deck to be considered level. See Figure 4.8.

MEASURE THE DISTANCEBETWEEN DECK LIP AND
BLADE TIP

SECTOR PLATE

FIGURE 4.5

WARNING
DO NOT attempt any adjustments, maintenance orservice with the engine or blade running. STOP blade.
STOP engine. Set brake. Remove key. Remove spark
plug wire from spark plug and secure wire away fromspark plug. Engine and components can be extremely
hot. Avoid burns by allowing engine and components
sufficient time to cool.

REMOVEHAIRPIN &WASHERNOTE: On 33” decks, the measurement between the blade
tip and deck lip should be 5/16".
5. Repeat steps 2 and 3 with blade tip “B”.
6. If measurement between blade tips and deck are
different and there is more than 1/16” difference between
blade tip measurements, adjust blade as follows:a. Loosen jam-nuts on blade bar.
b. Adjust jack screws “IN” or “OUT” until blade
tip measurements are within 1/16” of each other.
See Figure 4.6.
c. Tighten jam-nuts.

FIGURE 4.7
33” DECK SHOWNSIDE TO SIDE VIEW

MEASUREFROM BLADE
TIPS TO FLOORANGLE IRON

FIGURE 4.8
8. If measurement differs more than 1/8", adjust as
follows:
a. Loosen front lift arm pivot bolt on front of right side rail.
See Figure 4.9.

LOOSEN JAM NUTS, ADJUSTJACK SCREWS “IN” OR“OUT” TO LEVEL BLADE WITH

JACK SCREWLOOSEN PIVOT BOLTLOOSEN SHOULDER
BOLTJAM NUTSIDE VIEW OF DECKTURN ECCENTRICAS REQUIREDFIGURE 4.6

FIGURE 4.9
20

Section 4 - ADJUSTMENT & REPAIRWARNING33” DECK SHOWNDO NOT attempt any adjustments, maintenance orservice with the engine or blade running. STOP blade.
STOP engine. Set brake. Remove key. Remove spark
plug wire from spark plug and secure wire away fromspark plug. Engine and components can be extremely
hot. Avoid burns by allowing engine and components
sufficient time to cool.
4.2.5.

REAR

FRONT

X + 1/4”

MEASURE FROM BLADE
TIPS TO FLOORFIGURE 4.11

33" DECK LEVEL ADJUSTMENT(SIDE TO SIDE)(Continued from previous page)

4.2.7.

33" DECK LEVEL ADJUSTMENTFRONT TO REAR - FRONT LIFT ROD
If the sector plates are in their lowest setting and properlevel cannot be obtained, adjust the front lift rod as
follows:
1. Move deck lift lever to #5 position.
2. Place a 2 x 4 wooden block on edge under front
center of deck.
3. Place a 3 x 3 wooden block under rear center ofdeck.
4. Remove hair pins and washers securing sector
plates. Lower rear of deck onto 3 x 3 block.
5. Remove hair pin and washer securing front lift rod
to front lift arm. See Figure 4.12.

b. Loosen eccentric shoulder bolt.
c. Turn eccentric "UP" or "DOWN" as required to leveldeck. See Figure 4.9.
d. Tighten eccentric bolt. Place sector plates back onto
rear lift arms and secure with washers and hairpins.
4.2.6.

33" DECK LEVEL ADJUSTMENTFRONT TO REAR - SECTOR PLATES
1. Remove hair pins and washers securing sector
plates to rear lift arms. See Figure 4.10.
SECTOR PLATES

JAM
NUT

HAIR PINWASHERLOWEST DECKSETTINGHIGHESTDECKSETTINGFRONT LIFT RODREMOVE HAIR PIN &WASHER

FIGURE 4.12

FIGURE 4.10

6. Remove front lift rod and carefully rest front of deck
onto 2 x 4 block.
7. Loosen jam nut on front lift rod. See Figure 4.12.
8. Turn front lift rod hanger block until it can bereinstalled into front lift arm without lifting deck.
9. Secure lift rod to lift arm with washer and hair pin.
10. Place sector plates onto rear hanger brackets andsecure with washers and hair pins.
11. Raise deck and remove wooden blocks.
12. Repeat steps for front to rear level until levelness
is acquired.

2. Move sector plate as required to raise or lower deck.
NOTE: The deck should be set so that the rear of the deckis 1/4" lower than the front. See Figure 4.11.

21

Section 4 - ADJUSTMENT & REPAIRWARNING38” DECKDO NOT attempt any adjustments, maintenance orservice with the engine or blade running. STOP blade.
STOP engine. Set brake. Remove key. Remove spark
plug wire from spark plug and secure wire away fromspark plug. Engine and components can be extremely
hot. Avoid burns by allowing engine and components
sufficient time to cool.
4.2.8.

JAM NUTWASHERFRONT LIFT
ROD

38" DECK LEVEL ADJUSTMENT(SIDE TO SIDE)HAIR PIN

NOTE: Before adjusting deck, bring tire pressure toproper P.S.I.; front 12 P.S.I., rear 12 P.S.I..
FIGURE 4.14

1. Move tractor to a firm, level surface.
2. Turn engine “OFF”. Remove key.
3. Place a 2-1/2” tall block under the front of the deck
centered between the front lift arms. See Figure 4.13.

9. If the difference is less than 1/8", go to next section,
Front to rear level. If the difference is more than 1/8",
adjust as described in the following steps.
10. Loosen the front adjuster nut until adjuster moves
freely. Then tighten the nut until the adjuster moves only
when moderate force is applied to one side of the deck.
See Figure 4.15.

FRONT OF TRACTOR

2-1/2” TALL BLOCKFRONT OF TRACTOR

SIDE TO SIDE LEVEL CHECK POINTSADJUSTER NUT

FIGURE 4.15
11. Adjust the side to side level of the blade tips bymoving one side of the deck up or down as needed toobtain 1/8" or less side to side deck level.
12. After leveling deck, retighten the adjuster nut using
30 to 40 ft. lbs.
13. Attach the rear hanger plates to the hole that mostclosely aligns with the pin on the deck lift bracket. Securewith washer and hair pin.
14. Adjust the swivel on the front lift rod until it lines up
with the hole in the front lift bracket. (Make sure the lift
rod is at the top of the slot in the deck bracket) Securewith hair pin.

1-3/4” TALLBLOCK

FIGURE 4.13
4. Place a 1-3/4" tall block under the rear of the deck inthe center. See Figure 4.13.
5. Position blades as shown and lower deck onto
blocks. See Figure 4.13.
6. Disconnect the front lift rod and the rear hanger
plates. See Figure 4.14.
7. Put the lift lever in the 3rd position from low cut.
8. Measure the distance from each blade tip to thefloor. The measurements should be within 1/8" of eachother. (Factory setting)22Section 4 - ADJUSTMENT & REPAIRWARNINGREAR TO FRONT VIEW OF DECKDO NOT attempt any adjustments, maintenance orservice with the engine or blade running. STOP blade.
STOP engine. Set brake. Remove key. Remove spark
plug wire from spark plug and secure wire away fromspark plug. Engine and components can be extremely
hot. Avoid burns by allowing engine and components
sufficient time to cool.

X - 1/8”X

ANGLE IRON

4.2.9.

38" DECK LEVEL ADJUSTMENT(FRONT TO REAR)
1. Position the blades as shown. See Figure 4.16.

FIGURE 4.17
4.3 TRACTOR DRIVE COMPONENTS
4.3.1. BRAKE ADJUSTMENT
When adjusted properly, the brake should stop thetractor in approximately 6 feet or less from top speed.
Drive the machine at maximum forward speed andapply the brake. If stopping distance is greater than 6feet, brake adjustment is required.
1. Turn engine “OFF”. Remove key.
2. Locate brake adjustment nut underneath the left sideat the rear of tractor. See Figure 4.18.
3. Turn nut 1 turn clockwise to increase braking
action. DO NOT over tighten brake adjustment.
4. Start engine and test brake.
5. Continue adjustment as described above until
proper brake function is achieved.

FRONT OF TRACTORLEFT FRONTBLADE TIP

RIGHT REAR BLADE TIP

FIGURE 4.16
2. Measure the distance from the left front blade tip to
the ground and from the right rear blade tip to the ground.
The front left blade tip should be between 1/8" and 3/8"
higher than the right rear (factory setting). If it is between
1/8" and 3/8" you are finished with adjustment.
3. If it is not within specifications, adjust by raising or
lowering the front of the deck using the swivel on the front
lift rod. Turning the swivel clockwise will raise the front of
the deck. Turning the swivel counterclockwise will lower
the front of the deck.
NOTE: The deck should be set so that the rear of the deckis 1/4" lower than the front. See Figure 4.17.
ROTATE ADJUSTING NUT CLOCKWISE TO
INCREASE BRAKING OR COUNTER
CLOCKWISE TO DECREASE BRAKINGFIGURE 4.18

23

Section 4 - ADJUSTMENT & REPAIR
4. Turn the neutral adjustment nut 1/4 turn clockwise
to reduce FORWARD creep. Turn the adjustment nut
1/4 turn counter clockwise to reduce Reverse creep.
Only turn the adjustment nut in 1/4 turn increments.
5. Check for creep in neutral. Start engine. Move
speed control lever to rear edge of the neutral detent.
Machine should not move. If further adjustment isrequired, stop engine and repeat Step 4.

WARNING
DO NOT attempt any adjustments, maintenance orservice with the engine or blade running. STOP blade.
STOP engine. Set brake. Remove key. Remove spark
plug wire from spark plug and secure wire away fromspark plug. Engine and components can be extremely
hot. Avoid burns by allowing engine and components
sufficient time to cool.

NEUTRAL
ADJUSTMENT
NUT

4.3.2. STEERING ADJUSTMENT
Should excessive “Play” be noted in the steering,
adjust as follows:
1. Turn engine “OFF”. Remove key.
2. From left side of tractor, locate the steering sector
below fuel tank. See Figure 4.19.
FUEL TANKTURN NUT CLOCKWISE TO
REDUCE FORWARD CREEPROTATE TO
REDUCE “PLAY”

FIGURE 4.20
ECCENTRIC
MOUNTING NUTWARNING
DO NOT adjust shift linkage with engine running. The
adjustment requires hands to be close to rotatingparts. STOP engine. REMOVE key.
FIGURE 4.19
3. Loosen the eccentric mounting nut and rotate theeccentric clockwise until steering “Play” is reduced.
See Figure 4.19.
4. Tighten eccentric mounting nut.
4.3.3. SHIFTER ADJUSTMENT
The shift linkage is set at the factory and should not
require further adjustment. The shifter is adjusted
properly when the speed control lever can be placedat rear edge of the neutral detent and the tractor
remains absolutely stationary. If motion is detected,
neutral adjustment will be required. DO NOT operate
a machine that creeps when shifted to neutral.
1. Stop engine. Remove key.
2. Move speed control lever to rear edge of neutral
detent and hold firmly.
3. Locate neutral adjustment nut underneath theright rear of the tractor. See Figure 4.20

24

Section 4 - ADJUSTMENT & REPAIR
4.3.4. TRACTION DRIVE BELT ADJUSTMENT
Should a gradual loss of traction be noticed, it may benecessary to adjust the traction drive belt tension.
Adjust as follows:
1. Move tractor to a firm, level surface.
2. Turn engine "OFF". Remove key.
3. Remove mowing deck.
4. Remove the traction drive belt stationary idler
mounting bolt. See Figure 4.21.
5. Move the stationary idler one hole towards left sideof tractor for more belt tension.
NOTE: Note the orientation of belt guide and make certain
it remains in the same orientation after moving idler.
NOTE: Should less tension be required move stationary
idler towards right side of tractor. See Figure 4.21.
6. Secure stationary idler with mounting bolt.
7. Place spark plug wire onto spark plug. Set park
brake. Start engine.
8. Visually inspect traction drive belt for movement.
When properly adjusted, the traction drive belt should
not have any movement or rotation with the engine
running and park brake engaged.
9. Should movement be present, readjust traction
drive belt to release belt tension as described inprevious instructions.
MOUNTING
BRACKETBELT GUIDEMORETENSIONSTATIONARY IDLERSTATIONARY IDLER
MOUNTING BOLTLESSTENSION
MORE TENSIONLESS TENSIONMOUNTING BRACKETBELT GUIDE - MAKE CERTAIN
BELT GUIDE ORIENTATION IS
MAINTAINED.
STATIONARY IDLER
MOUNTING
BOLT

FIGURE 4.21

25

Section 4 - ADJUSTMENT & REPAIR
4.4.3. (STANDARD) BLADE SHARPENING
Blades should be kept sharp at all times. When theblades are dull, cut grass will be ragged and lawn willusually turn brown. Sharpen standard blades as follows:
1. Move tractor to a firm, level surface.
2. Turn engine "OFF". Remove key.
3. Remove mowing deck from tractor.
4. Remove mower blade(s).
5. If a blade is in good condition, sharpen cutting edge
at an angle of 22 to 28 degrees. DO NOT sharpen
beyond existing cutting edge. Replace blades not in goodcondition. See Figure 4.24.

WARNING
DO NOT attempt any adjustments, maintenance orservice with the engine or blade running. STOP blade.
STOP engine. Set brake. Remove key. Remove spark
plug wire from spark plug and secure wire away fromspark plug. Engine and components can be extremely
hot. Avoid burns by allowing engine and components
sufficient time to cool. Wear heavy leather gloves
when handling or working around cutting blades.
Blades are extremely sharp and can cause severe
injury.
4.4 MOWER BLADE SERVICE
4.4.1. (STANDARD) BLADE WEAR LIMITS
All mower blades should be checked for excessive wear
and damage before each use. See Figure 4.22.

22º TO 28º
STANDARD BLADE

ORIGINAL CUTTING EDGE

NEW
BLADE

NOTCH FORMING

WEAR LIMIT.
CUTTING EDGEWORN.

FIGURE 4.24
4.4.4. (NINJA) BLADE SHARPENING
The Ninja recycling blades requires more frequent
service intervals than standard blades. When the blades
are dull, cut grass will be ragged and lawn will usuallyturn brown. Sharpen standard blades as follows:
1. Move tractor to a firm, level surface.
2. Turn engine "OFF". Remove key.
3. Remove mowing deck from tractor.
4. Remove mower blade(s).
5. Sharpen all cutting edges of the Ninja recycling
blade at an angle of 22 to 28 degrees for optimum
performance. See Figure 4.25.

DANGEROUS CONDITION! DO
NOT USE ON MOWER!

FIGURE 4.22
4.4.2. (NINJA) BLADE WEAR LIMITSThe ninja recycling blade requires more frequent service
intervals than standard blades. Check for excessive wear
and damage before each use. See Figure 4.23.

NINJA BLADE

NEW
BLADE
WEAR LIMIT. (CRACKSOR NOTCHES BEGIN
TO APPEAR)

22º TO 28º

DANGEROUS CONDITION!
DO NOT USE ON MOWER!

BLADE TIP

FIGURE 4.23

FIGURE 4.25

26

Section 4 - ADJUSTMENT & REPAIRWARNINGSPINDLEASSEMBLY

DO NOT attempt any adjustments, maintenance orservice with the engine or blade running. STOP blade.
STOP engine. Set brake. Remove key. Remove spark
plug wire from spark plug and secure wire away fromspark plug. Engine and components can be extremely
hot. Avoid burns by allowing engine and components
sufficient time to cool. Wear heavy leather gloves
when handling or working around cutting blades.
Blades are extremely sharp and can cause severe
injury.

BLADESPACER
BLADE(2 REQUIRED)

4.4.5. 33" MOWER BLADE REPLACEMENT
1. Move tractor to a firm, level surface.
2. Turn engine "OFF". Remove key.
3. Remove mowing deck from tractor.
4. Position deck on its left side to access blade.
5. Remove blade mounting bolts, nuts and washers.
See Figure 4.26.
NUT

CONE
WASHERSMOUNTING
NUT

BLADE
LOCK WASHER

FIGURE 4.27

BLADE
BAR

4.4.7. TRACTION DRIVE BELT REPLACEMENT
Mower Deck Removal
It is necessary to remove deck in order to replace
belts. Remove deck as follows:
1. Place tractor on a firm, level surface such asa driveway or garage floor and set the park brake.
2. Turn engine “OFF”. Remove key.
3. Lower the deck to lowest setting.
4. Disconnect the deck lift rod from the front liftarm. See Figure 4.28.

BLADE MOUNTING
BOLTS

FIGURE 4.26

FRONT LIFT
ARM

6. Install new blade onto blade mounting bar.
7. Torque 30 to 40 ft lbs.

FRONT LIFT
ROD

4.4.6. 38" MOWER BLADE REPLACEMENT
1. Move tractor to a firm, level surface.
2. Turn engine "OFF". Remove key.
3. Remove mowing deck from tractor.
4. Position deck to access blade.
5. Remove blade mounting nut and cone washer fromeach blade. See Figure 4.27.
6. Install new blades.
7. Torque 70 to 90 ft lbs.

WASHERHAIR PINFIGURE 4.28

27

Section 4 - ADJUSTMENT & REPAIRWARNING30” & 33” BELT GUIDES SHOWNDO NOT attempt any adjustments, maintenance orservice with the engine or blade running. STOP blade.
STOP engine. Set brake. Remove key. Remove spark
plug wire from spark plug and secure wire away fromspark plug. Engine and components can be extremely
hot. Avoid burns by allowing engine and components
sufficient time to cool.
4.4.7.

TRACTION DRIVE BELT REPLACEMENT
Mower Deck Removal(Continued from previous page)
5. Remove hair pins from the front deck hangerrod. See Figure 4.29.

ENGINE PULLEY
BOTTOM GROOVEFIGURE 4.30

RIGHT
SIDE
SHOWN

11. Slide deck back and disconnect spring fromtension idler.
12. Pull deck from under tractor from R.H. side.
Traction drive belt removal
1. Remove two belt guide mounting bolts from eachside of tractor frame. See Figure 4.31.
BELT GUIDEMOUNTING
BOLTS (2 EACH
SIDE)

FRONT
AXLE

BELT
GUIDE

FRONT DECKHANGER ROD
FRONTLIFT ARM

HAIR PINFIGURE 4.29
6. Hold front of deck "UP" and slide the front deck
hanger rod to the right and out then lower the front ofdeck to the ground.
7. Remove hair pin and flat washer from rear deck
hanger bracket on both sides of tractor.
8. Make note of hole used in sector plates.
9. Slide sector plates off of rear deck hanger
brackets.
10. Slide deck forward.
Remove deck drive belt from engine pulley bottom
groove. See Figure 4.30.

FIGURE 4.31
2. Slide belt guide assembly to the rear and remove.
3. Disconnect traction belt idler pulley spring fromtractor frame. See Figure 4.32.
RIGHT REAR
TRACTORFRAME

DISCONNECTSPRING FROM
FRAME

FIGURE 4.32

28

Section 4 - ADJUSTMENT & REPAIR
Traction drive belt replacement
1. Place new traction drive belt over transmission
pulley and span to engine pulley.
2. Place belt into top groove of engine pulley.
3. Route belt through stationary and tension idlers.
See Figure 4.36.

WARNING
DO NOT attempt any adjustments, maintenance orservice with the engine or blade running. STOP blade.
STOP engine. Set brake. Remove key. Remove spark
plug wire from spark plug and secure wire away fromspark plug. Engine and components can be extremely
hot. Avoid burns by allowing engine and components
sufficient time to cool.

TRANSMISSIONPULLEYDRIVE BELT

4.4.7.

TRACTION DRIVE BELT REPLACEMENT(Continued from previous page)
4. Remove mounting nuts that secure the traction
drive belt idler tension pulley and stationary idler
pulleys. See Figure 4.33.
STATIONARY
IDLER
PULLEYSTENSIONIDLER
STATIONARYIDLER
STATIONARYIDLER BRACKET

TRANSMISSIONPULLEYBELT GUIDESTATIONARY IDLERREMOVEALL
PULLEYSENGINEPULLEYTENSIONIDLER
PULLEYFIGURE 4.35

VIEW FROM UNDERNEATH TRACTOR

NOTE: When installing a new belt, make certain thestationary idler is mounted in the hole closest to the L.H.
side of the tractor. See Figure 4.35.

FIGURE 4.33
5. Remove traction drive belt from engine pulley top
groove. See Figure 4.34.

4. Make certain belt is within belt guides of idlers.
5. Attach tension idler spring to tractor frame. See
Figure 4.36.
6. Reinstall mower deck in reverse order of removal.

REMOVE BELTFROM PULLEYRIGHT REAR
TRACTOR FRAME

CONNECT SPRINGTO FRAME

FIGURE 4.34

FIGURE 4.36

6. Remove belt from center belt guide.
7. Pull belt until it can be removed from transmission
pulley.

29Section 4 - ADJUSTMENT & REPAIR
38" Deck Drive Belt
1. Place tractor on a firm level surface.
2. Turn engine "OFF". Remove key.
3. Remove mower deck.
4. Remove spindle belt guard and tension idler. See
Figure 4.39.

WARNING
DO NOT attempt any adjustments, maintenance orservice with the engine or blade running. STOP blade.
STOP engine. Set brake. Remove key. Remove spark
plug wire from spark plug and secure wire away fromspark plug. Engine and components can be extremely
hot. Avoid burns by allowing engine and components
sufficient time to cool.

REMOVE IDLER

4.4.8.

BLADE BELT REMOVAL & REPLACEMENT
33" Deck Drive Belt
1. Place tractor on a firm level surface.
2. Turn engine "OFF". Remove key.
3. Remove mower deck.
4. Remove deck belt idler pulley and spindle pulleycover. See Figure 4.37.
REMOVESPINDLEPULLEYCOVER

REMOVEIDLER
REMOVE BELTGUARD

FIGURE 4.39
5. Remove old belt.
6. Replace with new belt in reverse order.
7. Adjust idler pulley belt guide if necessary to obtain
1/16" clearance between belt and belt guide. See
Figure 4.40.
1/16”
CLEARANCE(TYPICAL)FIGURE 4.37

SPINDLEPULLEY

5. Remove old belt.
6. Replace with new belt in reverse order.
7. Adjust idler pulley belt guide if necessary to obtain
1/16" clearance between belt and belt guide. See
Figure 4.38.

SPINDLEPULLEYFIGURE 4.40

SPINDLE PULLEY

1/16”
CLEARANCEIDLER PULLEYFIGURE 4.38

30

TENSION
IDLER

Section 4 - ADJUSTMENT & REPAIR
4.5 BATTERY
4.5.1. BATTERY REMOVAL
1. Raise operator's seat.
2. Remove the two adjusting knobs.
3. Remove seat assembly and move forward. Use
care not to disconnect wires from seat switch. See
Figure 4.41.

4.5.2. BATTERY INSTALLATION
1. Slide battery into battery housing.
2. Connect positive (+) cable first.
3. Connect negative (-) cable last.
4. Reinstall seat assembly. Use care not todisconnect wires from seat switch.
5. Reinstall the two adjusting knobs.
6. Lower operator's seat.

REMOVE ADJUSTINGKNOBS AND MOVESEAT FORWARD

WARNINGThe electrolyte (acid) produces a highly 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
immediately after having eye or skin contact withelectrolyte (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.
4.5.3. BATTERY SERVICE
1. Remove battery. See Section on Battery Removal.
2. Place battery in a well ventilated area on a levelsurface.
3. Using distilled water, refill cells as required tobring fluid to proper level.
4. With cell caps removed, connect battery charger
to battery terminals. Red to positive (+) terminal andblack to negative (-) terminal.
5. Slow charge battery at 1 amp for 10 hours.
6. If battery will not accept charge or is partiallycharged after 10 hours of charging at 1 amp, replacewith new battery.

FIGURE 4.41
4. Remove negative ( - ) cable first.
5. Remove positive ( + ) cable last.
6. Remove battery. See Figure 4.42.

WARNING
Cables must be connected to battery terminals in theproper position as shown. DO NOT attempt to charge
battery while installed on tractor. DO NOT use"BOOST" chargers on the battery. If battery isremoved, DO NOT operate engine without insulating
Positive + battery cable terminal with electrical tape,or sparking from battery cables can result.

4.5.4. BATTERY STORAGE
When out of season, it is recommended the battery
be removed, charged and stored.
1. Remove battery. (Refer to Section “BATTERYREMOVAL”).
2. Perform battery service.
3. Bring battery to full charge, if required.
4. Store battery in an area away from the RIDER on awood surface. DO NOT STORE BATTERY ON A
CONCRETE SURFACE.

REMOVE POSITIVE(+) CABLE LASTWARNING
DO NOT attempt to charge battery while installed on themachine. DO NOT use “BOOST” chargers on thebattery. DO NOT OVERFILL!
REMOVE NEGATIVE (-)
CABLE FIRSTFIGURE 4.42
31

Section 4 - ADJUSTMENT & REPAIRWARNING

IMPORTANT: Never place anything in battery other thanspecified electrolyte.

DO NOT OVERFILL! DO NOT attempt to service or
charge the battery while it is installed on the machine.
DO NOT use “BOOST” chargers on the battery.

5. Slow charge the battery at 1 amp for 2 hours tobring the battery to full charge.
6. After charging, check level of electrolyte and add
as needed to bring to proper level.
7. Reinstall cell caps.
8. Slide battery partially into battery housing.
9. 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 overterminals to prevent corrosion.
10. Insert battery completely into battery housing.
11. Reinstall seat assembly.

4.5.5. BATTERY TESTING
There are two types of battery tests: Unloaded andLoaded. The unloaded test is the procedure that will
be discussed. It’s the simplest and most commonly
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 tohook the positive lead to the battery’s positive
terminal, and the negative lead to the negative
terminal.
2. A hydrometer measures the specific gravity ofeach cell. The specific gravity tells the degree ofcharge; 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
Battery Condition chart below shows the charge level
as measured by syringe float hydrometer, digital
voltmeter and five ball hydrometer.

WARNING
Shield the positive terminal with terminal coverlocated on battery harness. This prevents metal fromtouching the positive terminal, which could cause
sparks. Cables must be connected to battery
terminals in the proper position. RED (Positive) cablemust go to the ( + ) terminal. BLACK (Negative) cablemust go to the ( - ) terminal.

4.5.6
NEW BATTERY PREPARATION
1. Remove battery from carton.
2. Place battery in a well ventilated area on a level nonconcrete surface.
3. Remove battery cell caps. Fill cells as requiredwith electrolyte (purchased separately) to proper level.
Filling battery with electrolyte will bring the battery to
80% charged state.
4. With cell caps removed, connect battery charger tobattery terminals; RED to positive (+) and BLACK tonegative (-) terminal.

Battery Condition Chart
State of Charge
100% Charged w/ Sulfate Stop
100% Charged
75% Charged
50% Charged
25% Charged
0% Charged

Syringe Hydrometer
1.280
1.265
1.210
1.160
1.120
Less than 1.100

32

Digital Voltmeter
12.80v
12.60v
12.40v
12.10v
11.90vLess than 11.80v

Five Ball Hydrometer
Five Balls Floating
Four Balls Floating
Three Balls Floating
Two Balls Floating
One Ball Floating
Zero Balls Floating

Section 4 - ADJUSTMENT & REPAIR
AVAILABLE ACCESSORIESThe SNAPPER Series H LAWN TRACTOR can be equipped with a variety of accessories that increase its versatility. The
accessories available for each model are listed in the chart below. Contact an authorized SNAPPER dealer for ordering
any of the accessories desired.

AVAILABLEACCESSORIES
Thatcherizer
Dethatcher
Lawn Sweeper Dethatcher
Lawn Sweeper
Aerator
Broadcast Spreader
Lawn Roller
42” Snow Blade*44” Dozer Blade Spring Trip****
Dozer Blade Support Kit
40” Snow Thrower****Debris Blower****
RAD Quick Hitch/Subframe Kit
Weight Kit
Tire Chains
Ninja Recycling/Mulch Kit
38 Wave Recycling /Mulch Kit
Single Bag Catcher***Twin Bag Catcher***Clamshell Catcher
Adapter Mounting Kit
Utility Trailer
Bag-N-Wagon
Bag-N-Wagon Hitch Kit
Front Bumper

LT150H33IBV

LT150H38IBV

6-1247
6-1912
6-1914
6-1913
6-1911
6-1916
6-19156-1352
6-1881
6-13706-18806-1883
6-1879
6-1245
6-1085
6-1255NA
6-09436-09466-31316-1334
6-19106-09476-1308
6-1982

6-1247
6-1912
6-1914
6-1913
6-1911
6-1916
6-19156-1352
6-1881
6-13706-18806-1883
6-1879
6-1245
6-1085
6-1878
6-1877
6-1886
6-18886-3126
6-1334
6-1910NANA
6-1982* Requires Dozer Blade Support Kit ***Requires Adapter Mounting Kit** Requires Snow Thrower Support Kit ****Requires Hitch/Subframe Kit

33

SECTION 5 - ELECTRICAL SYSTEMSCHEMATIC – WIRING HARNESS P.N. 2-6616
LT150H33IBV & LT150H38IBVSCHEMATIC – WIRING HARNESS P.N. 7-3998
LT150H38HKV34

TROUBLESHOOTING GUIDEPROBLEMPROBABLE CAUSECORRECTIVE ACTION

Starter Will Not
Crank Engine

1. Battery dead.
2. Blown fuse.
3. Electrical connections loose or corroded.
4. Defective ignition switch.
5. Starter Spins without engaging.

Engine Will Not
Start

1. Blade engagement switch in the “ON”
position.
2. Park brake not set.
3. Fuel tank empty.
4. Engine needs choking.
5. Spark plug wire disconnected.
6. Battery weak or dead.
7. Faulty interlock switch.
1. Operator not in seat.
2. Engine speed control in the “CHOKE”
position.
3. Fuel tank empty.
4. Engine air pre-cleaner and or air cleaner
dirty.
5. Spark plug defective or gap set improperly.
6. Fuel filter stopped up.
7. Water, debris or stale fuel in fuel system.
1. Excessive load on engine.

Engine Stalls After
RunningEngine Loses
Power

Engine Backfires
When Turned To“STOP”
Excessive
Vibration

1. Service battery.
2. Replace fuse.
3. Clean and check connections for good contact.
4. Contact authorized SNAPPER dealer.
5. Release Start key and repeat attempt. If starter
continues to spin contact Engine Dealer.
1. Move blade engagement switch to “OFF”.
2. Set park brake.
3. Fill fuel tank with fresh fuel.
4. Move engine speed control to “CHOKE”.
5. Place spark plug wire onto spark plug.
6. Service battery.
7. Contact authorized SNAPPER dealer.
1. Sit in operator’s seat.
2. Move engine speed control to “FAST”.
3. Fill with fuel to proper level.
4. Clean free of all debris.
5. Service spark plug.
6. Replace fuel filter.
7. Drain and clean fuel system.
1. Lessen load by slowing ground speed.

2. Engine air pre-cleaner or air cleaner dirty.
3. Engine oil level low.
4. Engine cooling fins and air screens
excessively dirty.
5. Spark plug faulty.
6. Water, debris or stale fuel in fuel system.
1. Engine speed control set too “FAST”.

2. Clean or replace filters.
3. Fill with engine oil to proper level.
4. Clean free of all debris.

1. Damaged or bent mower blades.

1. Service mower blade(s).

2. Loose blade components.
3. Loose or missing air lift (if equipped).

2. Service and tighten loose parts.
3. Replace air lifts. Tighten to proper torque.

5. Service spark plug.
6. Drain and clean fuel system.
1. Set engine speed control to “SLOW” and allow
engine to idle. Then, turn key to “OFF”.

(Continued on next Page)

35

TROUBLESHOOTING GUIDE(Continued From Previous Page)
PROBLEM
Tractor Will Not
Move Or Loss Of
Traction

Blade(s) Not
Turning

Cutting Grass
Improperly

Poor Grass
Discharge

Battery Will Not
ChargeOil Leaking From
Transmission

PROBABLE CAUSE
1. Speed control handle in the neutral “N”
position.

CORRECTIVE ACTION
1. Place speed control in desired speed.

2. Roll release control in “ROLL” position.

2. Move roll release control to the engaged
position.
3. Bring oil to proper level.
4. Adjust shifter.
5. Adjust traction drive belt.
6. Replace traction drive belt.
1. Move switch to the “ON” position.

3. Low transmission oil level.
4. Shifter out of adjustment.
5. Traction drive belt requires adjustment.
6. Traction drive belt requires replacement.
1. Blade engagement switch in the “OFF”
position.
2. Blade belt requires adjustment.
3. Blade belt requires replacement.
4. Electric clutch not functioning.
1. Uneven tire pressure.

2. Adjust mower belt.
3. Replace mower belt.
4. Contact authorized SNAPPER dealer.
1. Bring to proper pressure.

2. Cutting height too low or high.
3. Engine speed too slow.
4. Forward speed too fast.
5. Deck side to side level requires adjustment.
6. Deck front to rear level requires adjustment.
7. Cutting Blade dull or damaged.
8. Blade belt requires replacement.
9. Blade belt slipping.
1. Engine speed too slow.

2. Adjust cutting height.
3. Move engine speed control to “FAST”.
4. Move speed control to a slower speed.
5. Adjust side to side level.
6. Adjust front to rear level.
7. Sharpen cutting edges or replace blade.
8. Replace blade belt.
9. Replace blade belt.
1. Move engine speed control to “FAST”.

2. Forward speed too fast.
3. Grass is wet.
4. Excessively worn or damaged blade(s).
5. Build up of grass clippings and debris underdeck.
6. Improper blade(s) installed on deck.
7. Blade(s) installed improperly on deck.
1. Poor cable connections.

2. Move speed control to a slower speed.
3. Mow when grass is dry.
4. Service mower blade(s).
5. Clean deck.

2. Bad battery cell(s).
3. Faulty alternator.
1. Loose or missing oil filler cap ontransmission.
2. Leaking axle seats.
3. Leaking at casing seal.

2. Replace with new battery.
3. Contact engine manufacturer’s dealer.
1. Check oil level and re-install oil cap.

6. Install proper SNAPPER blades.
7. Install blades properly.
1. Clean cables and battery terminals.

2. Contact authorized SNAPPER dealer.
3. Contact authorized SNAPPER dealer.

36

MAINTENANCE SCHEDULE
SUBJECT

EACH
USE

5
HOURS

25
HOURS

EngineSERVICETO BE PERFORMED
Check Oil Level

REFERENCE
PAGES
Page 7

EngineInitial Oil Change

Page 13EnginePeriodic Oil Change

Page 14

Air Pre-Cleaner

Service Sponge PreCleaner Element

Engine Manual& Page 14

X**

Air Cleaner

Replace Element

X**

Spark Plug

Replace Plugs

Fuel Filter

Replace Filter

Engine Manual& Page 14
Engine Manual& 17Page 17

Engine Cooling
SystemBattery
Battery

Clean Shrouds & Fins

Engine Manual

Check Electrolyte
Charge Battery

Page 31
Page 31-32

Tires

Check Pressures

Page 7

Drive Belts

Check For Wear And
TensionPages 27-30

Mower Blades

Check Wear, Damage,And Blade Brake

Pages 13,26-27

X

Mower Deck

Clean Debris
Accumulation

Page 7

X

50
HOURS

100
HOURS

EACH
SEASON

X
X
X*

X
X
X**
X

X
X

X

X
X

X

X

X

Mower
Clean Outside andPage 7X
X
Deck
Underside
Lubrication
Grease or Oil
Pages 15-16
X
PointsHydrostatic
Check Oil Level
Page 17
Trans. Oil
ReverseCheck Function
Page 12
X
Lockout
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

X
X
X

MAINTENANCE PARTS
TRACTOR
MODEL No.
LT150H33IBV
LT150H38IBVDRIVE BELTS
Engine to Transmission
7-38347-383437

Engine to Deck
7-56023-5500MOWER BLADESStandard
3-41684-2998NINJA
2-47412-6597

2 YEAR LIMITED WARRANTY
For two (2) 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-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 certain transmissions, 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 part that has been altered or modified changing safety, performance, or durability.
Batteries have a one (1) year warranty period with free replacement if required for one (1) year from the original purchasedate. 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 two (2)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 forconsequential 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 orlimitation 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: 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

38

PRIMARY MAINTENANCE

39

PRIMARY MAINTENANCE

40PRIMARY MAINTENANCE

41

PRIMARY MAINTENANCE

42

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.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.

43

SERVICE NOTES______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
44

Safety Instructions & Operator’s Manual for

LAWN TRACTORHYDROSTATIC DRIVESERIES IIMPORTANTSnapper products are built using engines that meet or exceed all applicable emissions requirements on the datemanufactured. 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: (1800-935-2967).

WARNINGBATTERY POSTS, TERMINALS AND RELATED ACCESSORIES CONTAIN LEAD AND LEAD COMPOUNDS,CHEMICALS KNOWN TO THE STATE OF CALIFORNIA TO CAUSE CANCER AND BIRTH DEFECTS OR OTHERREPRODUCTIVE HARM. WASH HANDS AFTER HANDLING.

WARNINGENGINE EXHAUST, SOME OF ITS CONSTITUENTS, AND CERTAIN VEHICLE COMPONENTS CONTAIN OR
EMIT CHEMICALS KNOWN TO THE STATE OF CALIFORNIA TO CAUSE CANCER OR OTHERREPRODUCTIVE HARM.

COPYRIGHT © 2003
SNAPPER PRODUCTS INC.
ALL RIGHTS RESERVEDMANUAL No. 7-5536 (I.R. 3/25/03)

45