Snapper Lawn Mower WLT145H38GBV User Manual

Safety Instructions & Operator’s Manual for  
LAWN TRACTOR  
HYDROSTATIC DRIVE  
SERIES G  
MODELS  
HYDROSTATIC DRIVE  
LT145H33GBV  
LT145H38GBV  
LT150H38GKV  
WLT145H38GBV  
MODEL NUMBER EXPLANATION  
LT  
145  
H
38  
G
B
V
MODEL DESIGNATION  
ENGINE HP  
DRIVE SYSTEM TYPE  
CUTTING WIDTH  
ENGINE TYPE  
ENGINE MODEL  
SERIES DESIGNATION  
LT/WLT – Lawn Tractor Model Designation  
145 - 14.5 HP, 150 – 15.0 HP Engine Horse Power  
H – Hydrostatic Transmission  
38 – 38” Cutting Width Mower  
G – Series Designation  
B – Briggs & Stratton, K - Kohler Engine  
V – Over Head Valve Type Engine  
33 – 33” Cutting Width Mower  
Thank you for buying a SNAPPER product! Before operating the Lawn Tractor, read and follow the  
“IMPORTANT SAFETY INSTRUCTIONS” on pages 2 & 3, all other instructions contained in this manual and the  
accompanying booklet “About Power Mower Safety”. Lawn mowers and all power equipment can be potentially  
dangerous if used improperly. REMEMBER: SAFETY REQUIRES CAREFULL USE IN ACCORDANCE WITH  
INSTRUCTIONS AND COMMON SENSE!  
COPYRIGHT © 2000  
SNAPPER INC.  
ALL RIGHTS RESERVED  
MANUAL No. 7-4025 (I.R. 9/19/00)  
IMPORTANT SAFETY INSTRUCTIONS  
PREPARATION  
(Continued From Previous Page)  
OPERATION  
(Continued From Previous Column)  
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 for  
proper operation and location.  
14. Exercise CAUTION when pulling loads. Limit  
loads to those you can safely control and attach  
loads to hitch plate as specified with SNAPPER  
attachment instructions.  
15. DO NOT operate engine in enclosed areas.  
Engine  
exhaust  
gases  
contain  
carbon  
9. Make sure all safety decals are clearly legible.  
Replace if damaged.  
monoxide, a deadly poison.  
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 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.  
MAINTENANCE  
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 out 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.  
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.  
4. Check brakes frequently; adjust, repair or  
replace as needed.  
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 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 grass  
catcher or guards in place. DO NOT point  
discharge at people, passing cars, windows or  
doors.  
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. Mower 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.  
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.  
3
TABLE OF CONTENTS  
IMPORTANT SAFETY INSTRUCTIONS..........2 - 3  
SECTION 4 -  
ADJUSTMENTS & REPAIR........................... 17-32  
Engine Adjustments & Repair..........................17  
Mower Deck & Component Adjustments........17  
Blade Brake Adjustment...................................17  
33” Deck Blade Brake Adjustment ...............17  
38” Deck Blade Brake Adjustment ...............17  
Blade Belt Adjustment (33” Deck) ...................18  
Blade Belt Adjustment (38” deck)....................18  
Adjusting Mower Blade (33” Deck).............18-19  
33” Side To Side ...........................................18-19  
(Deck Level Adjustment)  
TABLE OF CONTENTS........................................4  
SECTION 1 - FAMILIARIZATION .........................5  
Components ........................................................5  
Controls ................................................................5  
SECTION 2 -  
OPERATING INSTRUCTIONS ........................6-11  
Pre-start Checklist ..............................................6  
Operator’s Seat Adjustment ..............................6  
Starting & Stopping Engine................................7  
Starting & Stopping Wheel Drive .......................8  
Starting & Stopping Mower Blades................ 8-9  
Parking Brake.......................................................9  
Cutting Height Adjustment .................................9  
Rolling Tractor With Engine Off .......................10  
Reverse Lockout Mechanism ...........................11  
33” Front To Rear Sector Plates ......................20  
(Deck Level Adjustment)  
33” Front To Rear Front Lift Rod .....................20  
(Deck Level Adjustment)  
38” Side To Side ................................................21  
(Deck Level Adjustment)  
38” Front To Rear..............................................22  
(Deck Level Adjustment)  
SECTION 3 -  
Brake Adjustment - HYDRO DRIVE..................22  
Steering Adjustment .........................................23  
Shifter Adjustment ............................................23  
Traction Drive Belt Adjustment........................24  
Mower Blade Service ...................................25-26  
Blade Wear Limits ..........................................25  
Mower Blade Sharpening ..............................25  
Mower Blade Replacement.......................25-26  
Traction Drive Belt Removal/Replace.........26-28  
Blade Belt Removal & Replacement................29  
33” Deck Drive Belt ........................................29  
38” Deck Drive Belt ........................................29  
Battery Service .............................................30-31  
MAINTENANCE INSTRUCTIONS .................12-16  
Service - After First 5 Hours ........................12  
Change Engine Oil..........................................12  
Check Blade Brake .........................................12  
Check Mower Blade.................................. 12-13  
Check Deck Drive Belt ...................................13  
Service – Every 25 Operating Hours .........13  
Mower Components.......................................13  
Check Blade Brake .........................................13  
Lubrication (Tractor)................................ 14-15  
Front Wheel Bearings ....................................14  
Axle Spindles ..................................................14  
Clutch/Brake Pivot..........................................14  
Steering Sector Gear......................................14  
Steering Shaft .................................................14  
Steering Drag Link..........................................14  
Steering Tie Rod.............................................15  
Blade Engagement Mechanism.....................15  
Park Brake Lever ............................................15  
Deck Lift Mechanism......................................15  
Service - Annually..................................... 15-16  
Engine .............................................................15  
Fuel Filter................................................... 15-16  
Spark Plug.......................................................16  
Hydrostatic Transmission Oil........................16  
AVAILABLE ACCESSORIES..................................32  
SECTION 5 -  
ELECTRICAL SYSTEM...................................... 33  
Schematic - Briggs & Stratton..........................33  
Schematic - Kohler............................................33  
TROUBLESHOOTING GUIDE ...................... 34-35  
MAINTENANCE SCHEDULE ............................. 36  
MAINTENANCE PARTS..................................... 36  
WARRANTY .................................................... 37  
PRIMARY MAINTENANCE............................ 38-41  
4
Section 1 - FAMILIARIZATION  
CONTROL PANEL  
FAST  
PARK  
BRAKE  
LEVER  
CHOKE  
SLOW  
CLUTCH/BRAKE  
PEDAL  
DOWN  
KEY  
ENGINE SPEED  
CONTROL  
CUTTING HEIGHT  
ADJUSTMENT LEVER  
OPERATOR’S  
SEAT  
STEERING  
WHEEL  
SEAT  
ADJUSTMENT  
KNOB  
SPEED  
CONTROL  
LEVER  
DASHBOARD  
CONTROLS  
FUEL TANK  
(UNDER HOOD)  
BATTERY  
(UNDER SEAT)  
HOOD  
OVERRIDE  
LEVER  
BLADE  
ENGAGEMENT  
LEVER  
HEADLIGHTS  
DISCHARGE DEFLECTOR  
MOWING DECK (33” SHOWN)  
ENGINE  
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 future  
reference.  
COMPONENTS  
The nomenclature drawings above, illustrate the  
essential components of the SNAPPER Lawn Tractor. It  
is recommended that all operators of this equipment  
become thoroughly familiar with the components and  
their operation BEFORE OPERATING.  
CONTROLS  
Specific details involving the engine are found in the  
separate Engine Owner’s Manual.  
All operators should be acquainted with the operator’s  
controls before attempting start-up or operation of the  
Lawn Tractor. See the Control Panel drawing above.  
5
Section 2 - OPERATING INSTRUCTIONS  
2.1 PRE-START CHECKLIST  
Make the following checks and perform service as  
required before each start-up.  
FUEL TANK  
2.1.1. Check tires and add air as needed to bring  
pressure to 12 P.S.I. in front tires and 12 P.S.I. in  
rear tires.  
2.1.2. Check guards, deflectors and covers to make  
sure all are in place and securely tightened. If guards  
are missing or damaged, replace BEFORE using  
mower.  
TIGHTEN CAP  
AFTER  
2.1.3. Check engine oil and add oil as needed to  
bring level up to, but not over, the FULL mark. Refer to  
engine owner’s manual for oil specifications. See Figure  
2.1.  
FILLING TANK  
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 and  
loosen the two adjusting knobs on the seat support.  
Lower the seat. Sit in the operator's seat and slide the  
seat forward or backward until the clutch/brake pedal  
can be fully depressed comfortably. Raise seat and  
tighten 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 lever  
must be moved manually from “ON” to “OFF” to  
stop blade.  
LOOSEN ADJUSTING  
KNOBS TO ADJUST  
SEAT  
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 fuel  
specifications. 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  
6
Section 2 - OPERATING INSTRUCTIONS  
2.3 STARTING & OPERATION  
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.  
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 of  
any stationary obstacles!  
NOTE: DO NOT crank engine for more than five  
seconds at a time. This will help prevent the starter from  
overheating and/or running down the battery. If cranking  
time is more than five seconds, locate and correct cause  
of starting problem.  
NOTE: The interlock system will prevent the engine from  
starting 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.  
6. After engine starts, release key, move the  
engine speed control to "FAST" position and allow  
engine to warm up before proceeding. See Figure  
2.6.  
2. Push blade engagement lever down to the "OFF"  
position. See Figure 2.4.  
BLADE  
ENGAGEMENT  
LEVER  
CHOKE  
LIGHT  
POSITION  
SWITCH  
FAST  
OFF  
PUSH BLADE  
ENGAGEMENT LEVER  
DOWN TO “OFF” TO  
SLOW  
START ENGINE  
FIGURE 2.4  
ENGINE  
SPEED  
CONTROL  
3. Depress the clutch/brake pedal fully. See Figure 2.5.  
4. Move speed control lever to neutral.  
KEY  
NOTE: The seat interlock will shut off the engine if the  
operator 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 the  
interlock has been repaired.  
FIGURE 2.6  
CLUTCH/BRAKE  
PEDAL  
WARNING  
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 START  
ENGINE  
FIGURE 2.5  
7
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”.  
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.  
3. Release clutch/brake pedal.  
4. Slowly shift speed control lever forward for  
forward motion or to the rear for reverse motion. See  
Figure 2.7.  
RUN  
OFF  
START  
SPEED CONTROL LEVER  
NEUTRAL  
REVERSE  
KEY  
FIGURE 2.9  
2.4.2. STOPPING WHEEL DRIVE  
1. Fully depress clutch/brake pedal to stop wheel  
drive. See Figure 2.10.  
FORWARD  
SPEEDS  
FIGURE 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 BLADE  
ENGAGEMENT LEVER UP  
TO “ON” TO START  
MOWER BLADE(S)  
FULLY DEPRESS  
CLUTCH/BRAKE PEDAL TO  
STOP WHEEL MOTION  
ON  
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, pets  
and hazards before and while backing.  
8
Section 2 - OPERATING INSTRUCTIONS  
2.4 STOPPING  
2.4.3. STOPPING MOWER BLADE  
2.4.5. RELEASING PARK BRAKE  
1. Fully depress clutch/brake pedal. Move park brake  
lever “DOWN” to release park brake. Release  
clutch/brake pedal. See Figure 2.13.  
1. Stop mower blade by moving blade engagement  
lever down to the "OFF" position. See Figure 2.11.  
PARK BRAKE  
LEVER  
CLUTCH/BRAKE  
BLADE  
ENGAGEMENT  
LEVER  
PEDAL  
OFF  
FULLY DEPRESS  
CLUTCH/BRAKE  
PEDAL  
FIGURE 2.11  
WARNING  
FIGURE 2.13  
Once blade is disengaged, it should come to a  
complete stop in 5 seconds or less. If the blade  
continues to rotate after 5 seconds, the blade brake  
must 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.  
DEPRESS  
LOCK 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.  
CUTTING  
HEIGHT  
PARK BRAKE  
LEVER  
ADJUSTMENT  
LEVER  
PUSH PEDAL ALL  
THE WAY DOWN  
HIGHEST CUT  
LOWEST CUT  
FIGURE 2.14  
MOVE PARK BRAKE  
LEVER “UP” TO  
ENGAGE PARK BRAKE  
2. Raise or lower deck to any of six positions as  
desired. Release lock button.  
WARNING  
FIGURE 2.12  
DO NOT park machine on slopes.  
9
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 to  
disengage the hydro transmission. See Figure 2.15.  
WARNING  
DO NOT disengage the hydro transmission and coast  
down slopes. DO NOT use Roll Release Control to  
disengage the hydro transmission unless machine  
motion can be controlled and engine is off.  
PULL ROLL RELEASE  
CONTROL ALL THE WAY  
OUT TO DISENGAGE  
HYDRO TRANSMISSION  
ROLL RELEASE  
CONTROL  
PUSH ROLL RELEASE  
CONTROL ALL THE WAY  
IN TO ENGAGE HYDRO  
TRANSMISSION  
ROLL RELEASE  
CONTROL  
FIGURE 2.15  
3. Move tractor to desired location.  
4. Push roll release control all the way in to engage  
hydro transmission. See Figure 2.15.  
5. Set park brake.  
NOTE: The transmission will not propel the tractor if it is  
left in the "ROLL" position.  
10  
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 unsupervised  
children. Many times these children have been given  
rides on the machine and have been trained to view this  
potentially dangerous piece of machinery as fun rather  
than being taught how to avoid danger.  
WARNING  
LOOK and SEE behind and down for children, pets  
and 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 remain  
functional 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 in  
reverse. 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, move  
the 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 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 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 sure  
that 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.  
11  
Section 3 - MAINTENANCE  
3.1 INTRODUCTION  
4. Check blade for straightness. Refer to Section  
“ADJUSTING MOWER BLADE”.  
5. 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.  
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 the heading LAWN MOWERS. For engine parts and  
service, look for the engine manufacturer’s dealers under the  
heading, ENGINES - gasoline.  
OIL  
FILLER  
TUBE  
3.2 SERVICE - AFTER FIRST 5 HOURS  
FASTEX™  
OIL DRAIN  
WARNING  
DO NOT attempt any adjustments, maintenance or  
service 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 away  
from spark plug. Engine and components can be  
extremely hot. Avoid burns by allowing engine and  
components sufficient time to cool.  
ROTATE COUNTER-  
CLOCKWISE AND PULL  
OUT TO OPEN.  
PUSH IN AND ROTATE  
CLOCKWISE TO CLOSE.  
NOTE: BRIGGS  
&
STRATTON ENGINE  
PICTURED  
3.2.1. CHANGE ENGINE OIL  
The engine is equipped with a Fastexoil drain.  
1. Rotate drain body counterclockwise and pull out to  
open drain. See Figure 3.1.  
2. Drain oil into a 2 quart container placed beneath  
end of oil drain.  
FIGURE 3.1  
3. After all oil has drained, push drain body "IN" and  
rotate clockwise to close.  
4. Fill engine with new motor oil as specified in engine  
owner's manual.  
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.  
3.2.2. CHECK BLADE BRAKE  
TORQUE 33” BLADE TO  
30 TO 40 FT. LBS.  
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.  
FIGURE 3.2  
WARNING  
Blades must stop rotating in 5 seconds or less after  
blades have been turned off. DO NOT operate machine  
until blade brake has been adjusted and functioning  
properly. Contact your SNAPPER dealer for assistance.  
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”.  
12  
Section 3 - MAINTENANCE  
3.2.3. CHECK MOWER BLADE (Continued)  
3.3 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.  
2. Remove and clean engine air pre-cleaner. See  
Figure 3.5. Refer to engine owner's manual for  
cleaning instructions.  
ENGINE AIR  
CLEANER  
TORQUE 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".  
ENGINE AIR  
PRE-CLEANER  
2. Measure blade cable extension spring. Spring  
should extend 1" +/-1/8" for proper belt tension. See  
Figure 3.4.  
FIGURE 3.5  
3. Remove and replace engine air cleaner. See  
Figure 3.5. Refer to engine owner's manual for  
service instructions.  
BLADE CABLE  
EXTENSION SPRING  
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 and  
torque. Refer to Section “MOWER BLADE  
REPLACEMENT”.  
3. Check mower deck for proper levelness. Refer  
X
to Section “MOWER DECK ADJUSTMENT  
LEVELNESS”.  
-
X + 1” +/- 1/8”  
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 clippings  
and 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.  
FIGURE 3.4  
3. To adjust tension, Refer to Section “BLADE  
BELT ADJUSTMENT”.  
3.2.5. CHECK 38” DECK DRIVE BELT  
1. On 38" model, check belt for excessive wear or  
damage and replace if necessary, there are no  
adjustments on this model.  
3.3.3. CHECK BLADE BRAKE  
1. Refer to Section “CHECK BLADE BRAKE”.  
13  
Section 3 - MAINTENANCE  
3.3.4. TRACTOR LUBRICATION  
4. Steering Sector Gear  
Lubricate with a light coat of general purpose grease.  
See Figure 3.8.  
1. Front Wheel Bearings  
Lubricate each front wheel bearing through the  
grease fitting on wheel hub. Using general purpose  
grease in a grease gun, add grease until grease  
purges from bearing. See Figure 3.6.  
FUEL TANK  
STEERING  
SECTOR  
AXLE SPINDLE  
LUBRICATION  
FITTING  
SECTOR  
GEAR  
FRONT WHEEL  
BEARING LUBRICATION  
FITTING  
FIGURE 3.6  
FIGURE 3.8  
2. Axle Spindles  
Lubricate each axle spindle with 1 to 3 shots of  
general purpose grease. See Figure 3.6.  
5. Steering Shaft  
Lubricate steering shaft wear points with a light coat  
of SAE30 oil.  
NOTE: The right hand spindle fitting faces forward and  
the left hand spindle fitting faces to the rear.  
6. Steering Drag Link  
Lubricate both ends of steering drag link with a small  
amount of SAE30 oil. See Figure 3.9.  
3. Clutch/Brake Pivot  
The clutch/brake pivot is located on the left hand  
underside of the tractor and is lubricated with one  
shot of general purpose grease. See Figure 3.7.  
DRAG LINK  
LUBRICATION  
POINT  
CLUTCH/BRAKE  
PIVOT LUBRICATION  
FITTING  
FIGURE 3.9  
FIGURE 3.7  
14  
Section 3 - MAINTENANCE  
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 3.10.  
PARK BRAKE  
LEVER  
LUBRICATE  
BOTH ENDS  
OF TIE ROD  
LUBRICATE COMPONENTS  
ON UNDERSIDE OF TRACTOR  
FIGURE 3.12  
10. Deck Lift Mechanism  
Lubricate all wear and pivot points of the deck lift  
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.  
3.4.2. FUEL FILTER  
1. Service fuel filter as instructed below, on COLD  
ENGINE ONLY!  
FIGURE 3.10  
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 3.11.  
NOTE: It may be necessary to drain the fuel tank before  
removing fuel filter to prevent spillage of gasoline.  
2. Locate fuel filter. Remove hose clamps and fuel  
LUBRICATE  
hoses from both sides of fuel filter. See Figure 3.13.  
COMPONENTS ON  
UNDERSIDE OF  
TRACTOR  
FUEL TANK  
FUEL FILTER  
BLADE  
ENGAGEMENT  
LEVER  
FIGURE 3.11  
REMOVE  
HOSE CLAMPS  
9. Park Brake Lever  
Using general purpose grease, lubricate the park  
brake lever mechanism pivot points, which are  
located on the left hand underside of tractor. See  
Figure 3.12. mechanism with a thin coat of 30 wt.  
motor oil.  
FIGURE 3.13  
15  
Section 3 - MAINTENANCE  
3.4 SERVICE - ANNUALLY  
3.4.2. FUEL FILTER  
(Continued From Previous Page)  
3. Install new fuel filter part number 1-4359. See  
Figure 3.14.  
NEW FUEL FILTER  
PART NUMBER 1-4359  
FIGURE 3.14  
4. Fill fuel tank with fresh gasoline. Refer to engine  
owner's manual for fuel specifications.  
3.4.3. SPARK PLUG  
Remove and replace engine spark plug. Refer to  
engine owner's manual for correct replacement plug  
and gap specifications.  
3.4.4. HYDROSTATIC TRANSMISSION OIL  
The hydrostatic transmission does not require  
maintenance. If any problems arise return  
immediately to a Snapper dealer.  
16  
Section 4 - ADJUSTMENT & REPAIR  
WARNING  
DO NOT attempt any adjustments, maintenance or  
service 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 from  
spark 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 those  
adjustments and/or repairs that can be made by the  
owner.  
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 an  
authorized 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 have  
been turned off. If blades continue to rotate, contact your  
authorized SNPPER dealer for assistance.  
WARNING  
Blades must stop rotating in 5 seconds or less after  
blades have been turned off. DO NOT operate  
machine until blade brake has been adjusted and  
functioning properly. Contact your SNAPPER dealer  
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 procedure  
described above, take machine immediately to an  
authorized SNAPPER dealer.  
for assistance.  
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 the  
adjustment nut on the threaded brake rod. The brake  
is 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.  
17  
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 of  
deck 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 or  
service 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 from  
spark 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 not  
correct, 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 “CHECK  
BLADE 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 DECK  
LEVEL ADJUSTMENT (FRONT TO REAR)”.  
MOVE BLADE  
LEAST TENSION  
MOST TENSION  
ENGAGEMENT  
LEVER TO “OFF”  
EXTENSION  
ROD  
MOUNTING  
NUT & BOLT  
FIGURE 4.2  
IMPORTANT: If deck front to rear level is not correct, this  
could cause blade belt problems.  
6. Move blade engagement lever to "ON".  
FIGURE 4.4  
7. Measure blade cable extension spring. The length of  
the spring (x) should increase by 1” (+/-1/8”). See Figure  
4.3.  
4.2.3. BLADE BELT ADJUSTMENT – 38” DECK  
The 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  
EXTENSION  
SPRING  
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 deck  
reference mark  
4. Measure the distance between deck lip and  
blade tip. Note the measurement. See Figure 4.5.  
X
X + 1” +/- 1/8”  
(Continued on next page)  
FIGURE 4.3  
18  
Section 4 - ADJUSTMENT & REPAIR  
4.2.4. ADJUSTING MOWER BLADE – 33” DECK  
4.2.5. 33" DECK LEVEL ADJUSTMENT (SIDE TO SIDE)  
(Continued from previous page)  
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.  
MEASURE THE DISTANCE  
BETWEEN DECK LIP AND  
BLADE TIP  
6. Rotate blade(s) until blade tips are at each side of  
deck.  
7. Measure distance from blade tip to floor on each side  
of deck. Blade tips should be within 1/8" of each other for  
the deck to be considered level. See Figure 4.8.  
SECTOR PLATE  
FIGURE 4.5  
WARNING  
DO NOT attempt any adjustments, maintenance or  
service 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 from  
spark plug. Engine and components can be extremely  
hot. Avoid burns by allowing engine and components  
sufficient time to cool.  
REMOVE  
HAIRPIN &  
WASHER  
NOTE: On 33” decks, the measurement between the blade  
tip and deck lip should be 5/16".  
FIGURE 4.7  
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.  
33” DECK SHOWN  
SIDE TO SIDE VIEW  
b. Adjust jack screws “IN” or “OUT” until blade  
tip measurements are within 1/16” of each other.  
See Figure 4.6.  
ANGLE IRON  
MEASURE  
FROM BLADE  
TIPS TO FLOOR  
c. Tighten jam-nuts.  
FIGURE 4.8  
LOOSEN JAM NUTS, ADJUST  
JACK SCREWS “IN” OR  
8. If measurement differs more than 1/8", adjust as  
“OUT” TO LEVEL BLADE WITH  
follows:  
a. Loosen front lift arm pivot bolt on front of right side rail.  
See Figure 4.9.  
JACK SCREW  
JAM NUT  
LOOSEN PIVOT BOLT  
LOOSEN SHOULDER  
BOLT  
SIDE VIEW OF DECK  
FIGURE 4.6  
TURN ECCENTRIC  
AS REQUIRED  
FIGURE 4.9  
19  
Section 4 - ADJUSTMENT & REPAIR  
33” DECK SHOWN  
WARNING  
REAR  
FRONT  
DO NOT attempt any adjustments, maintenance or  
service with the engine or blade running. STOP blade.  
STOP engine. Set brake. Remove key. Remove spark  
X + 1/4”  
plug wire from spark plug and secure wire away from  
spark plug. Engine and components can be extremely  
hot. Avoid burns by allowing engine and components  
sufficient time to cool.  
MEASURE FROM BLADE  
TIPS TO FLOOR  
FIGURE 4.11  
4.2.5. 33" DECK LEVEL ADJUSTMENT  
(SIDE TO SIDE)  
4.2.7. 33" DECK LEVEL ADJUSTMENT  
FRONT TO REAR - FRONT LIFT ROD  
If the sector plates are in their lowest setting and proper  
level 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.  
(Continued from previous page)  
b. Loosen eccentric shoulder bolt.  
c. Turn eccentric "UP" or "DOWN" as required to level  
deck. See Figure 4.9.  
d. Tighten eccentric bolt. Place sector plates back onto  
rear lift arms and secure with washers and hairpins.  
3. Place a 3 x 3 wooden block under rear center of  
deck.  
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.  
4.2.6. 33" DECK LEVEL ADJUSTMENT  
FRONT 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 PIN  
WASHER  
LOWEST DECK  
FRONT LIFT ROD  
HIGHEST  
SETTING  
DECK  
SETTING  
REMOVE 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.  
2. Move sector plate as required to raise or lower deck.  
7. Loosen jam nut on front lift rod. See Figure 4.12.  
8. Turn front lift rod hanger block until it can be  
reinstalled 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 and  
secure with washers and hair pins.  
NOTE: The deck should be set so that the rear of the deck  
is 1/4" lower than the front. See Figure 4.11.  
11. Raise deck and remove wooden blocks.  
12. Repeat steps for front to rear level until levelness  
is acquired.  
20  
Section 4 - ADJUSTMENT & REPAIR  
WARNING  
38” DECK  
DO NOT attempt any adjustments, maintenance or  
service 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 from  
spark plug. Engine and components can be extremely  
hot. Avoid burns by allowing engine and components  
sufficient time to cool.  
JAM NUT  
WASHER  
HAIR PIN  
FRONT LIFT  
ROD  
4.2.8. 38" DECK LEVEL ADJUSTMENT  
(SIDE TO SIDE)  
NOTE: Before adjusting deck, bring tire pressure to  
proper 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 BLOCK  
FRONT OF TRACTOR  
SIDE TO SIDE LEVEL CHECK POINTS  
ADJUSTER NUT  
FIGURE 4.15  
11. Adjust the side to side level of the blade tips by  
moving one side of the deck up or down as needed to  
obtain 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 most  
closely aligns with the pin on the deck lift bracket. Secure  
with 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) Secure  
with hair pin.  
1-3/4” TALL  
BLOCK  
FIGURE 4.13  
4. Place a 1-3/4" tall block under the rear of the deck in  
the 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 the  
floor. The measurements should be within 1/8" of each  
other. (Factory setting)  
21  
Section 4 - ADJUSTMENT & REPAIR  
WARNING  
REAR TO FRONT VIEW OF DECK  
DO NOT attempt any adjustments, maintenance or  
X - 1/8”  
X
service 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 from  
spark plug. Engine and components can be extremely  
hot. Avoid burns by allowing engine and components  
sufficient time to cool.  
ANGLE IRON  
4.2.9. 38" DECK LEVEL ADJUSTMENT  
(FRONT TO REAR)  
FIGURE 4.17  
1. Position the blades as shown. See Figure 4.16.  
4.3 TRACTOR DRIVE COMPONENTS  
4.3.1. BRAKE ADJUSTMENT  
FRONT OF TRACTOR  
When adjusted properly, the brake should stop the  
tractor in approximately 6 feet or less from top speed.  
Drive the machine at maximum forward speed and  
apply the brake. If stopping distance is greater than 6  
feet, brake adjustment is required.  
1. Turn engine “OFF”. Remove key.  
2. Locate brake adjustment nut underneath the left side  
at 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.  
LEFT FRONT  
BLADE 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 deck  
is 1/4" lower than the front. See Figure 4.17.  
ROTATE ADJUSTING NUT CLOCKWISE TO  
INCREASE BRAKING OR COUNTER  
CLOCKWISE TO DECREASE BRAKING  
FIGURE 4.18  
22  
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 is  
required, stop engine and repeat Step 4.  
WARNING  
DO NOT attempt any adjustments, maintenance or  
service 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 from  
spark 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 TANK  
TURN NUT CLOCKWISE TO  
REDUCE FORWARD CREEP  
FIGURE 4.20  
ROTATE TO  
REDUCE “PLAY”  
ECCENTRIC  
MOUNTING NUT  
WARNING  
DO NOT adjust shift linkage with engine running. The  
adjustment requires hands to be close to rotating  
parts. STOP engine. REMOVE key.  
FIGURE 4.19  
3. Loosen the eccentric mounting nut and rotate the  
eccentric 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 placed  
at 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 the  
right rear of the tractor. See Figure 4.20  
23  
Section 4 - ADJUSTMENT & REPAIR  
4.3.4. TRACTION DRIVE BELT ADJUSTMENT  
Should a gradual loss of traction be noticed, it may be  
necessary 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 side  
of 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 in  
previous instructions.  
MOUNTING  
BRACKET  
BELT GUIDE  
MORE  
TENSION  
STATIONARY IDLER  
STATIONARY IDLER  
MOUNTING BOLT  
LESS  
TENSION  
MORE TENSION  
LESS TENSION  
MOUNTING BRACKET  
BELT GUIDE - MAKE CERTAIN  
BELT GUIDE ORIENTATION IS  
MAINTAINED.  
STATIONARY IDLER  
MOUNTING  
BRACKET  
FIGURE 4.21  
24  
Section 4 - ADJUSTMENT & REPAIR  
4.4.3. (STANDARD) BLADE SHARPENING  
Blades should be kept sharp at all times. When the  
blades are dull, cut grass will be ragged and lawn will  
usually 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.  
WARNING  
DO NOT attempt any adjustments, maintenance or  
service 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 from  
spark 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. 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 good  
condition. See Figure 4.24.  
4.4 MOWER BLADE SERVICE  
22º TO 28º  
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.  
STANDARD BLADE  
ORIGINAL CUTTING EDGE  
NEW  
NOTCH FORMING  
BLADE  
WEAR LIMIT.  
CUTTING EDGE  
WORN.  
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 usually  
turn brown. Sharpen standard blades as follows:  
1. Move tractor to a firm, level surface.  
DANGEROUS CONDITION! DO  
NOT USE ON MOWER!  
FIGURE 4.22  
4.4.2. (NINJA) BLADE WEAR LIMITS  
2. Turn engine "OFF". Remove key.  
The ninja recycling blade requires more frequent service  
intervals than standard blades. Check for excessive wear  
and damage before each use. See Figure 4.23.  
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.  
NINJA BLADE  
NEW  
BLADE  
WEAR LIMIT. (CRACKS  
OR NOTCHES BEGIN  
TO APPEAR)  
22º TO 28º  
BLADE TIP  
DANGEROUS CONDITION!  
DO NOT USE ON MOWER!  
FIGURE 4.23  
FIGURE 4.25  
25  
Section 4 - ADJUSTMENT & REPAIR  
SPINDLE  
ASSEMBLY  
WARNING  
DO NOT attempt any adjustments, maintenance or  
service 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 from  
spark 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.  
BLADE  
SPACER  
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.  
CONE  
WASHERS  
MOUNTING  
NUT  
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 as  
a 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 lift  
arm. See Figure 4.28.  
BLADE MOUNTING  
BOLTS  
FRONT LIFT  
ARM  
FIGURE 4.26  
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 from  
each blade. See Figure 4.27.  
WASHER  
HAIR PIN  
6. Install new blades.  
7. Torque 70 to 90 ft lbs.  
FIGURE 4.28  
26  
Section 4 - ADJUSTMENT & REPAIR  
30” & 33” BELT GUIDES SHOWN  
WARNING  
DO NOT attempt any adjustments, maintenance or  
service 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 from  
spark 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 hanger  
rod. See Figure 4.29.  
ENGINE PULLEY  
BOTTOM GROOVE  
FIGURE 4.30  
RIGHT  
SIDE  
SHOWN  
11. Slide deck back and disconnect spring from  
tension idler.  
12. Pull deck from under tractor from R.H. side.  
Traction drive belt removal  
1. Remove two belt guide mounting bolts from each  
side of tractor frame. See Figure 4.31.  
BELT GUIDE  
MOUNTING  
BOLTS (2 EACH  
SIDE)  
FRONT  
AXLE  
BELT  
GUIDE  
FRONT DECK  
HANGER ROD  
FRONT  
HAIR PIN  
LIFT ARM  
FIGURE 4.29  
6. Hold front of deck "UP" and slide the front deck  
hanger rod to the right and out then lower the front of  
deck to the ground.  
FIGURE 4.31  
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.  
2. Slide belt guide assembly to the rear and remove.  
3. Disconnect traction belt idler pulley spring from  
tractor frame. See Figure 4.32.  
RIGHT REAR  
TRACTOR  
FRAME  
DISCONNECT  
SPRING FROM  
FRAME  
FIGURE 4.32  
27  
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 or  
service 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 from  
spark plug. Engine and components can be extremely  
hot. Avoid burns by allowing engine and components  
sufficient time to cool.  
TRANSMISSION  
PULLEY  
DRIVE 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.  
TENSION  
IDLER  
STATIONARY  
IDLER  
STATIONARY  
IDLER  
PULLEYS  
STATIONARY  
IDLER BRACKET  
TRANSMISSION  
PULLEY  
BELT GUIDE  
STATIONARY IDLER  
TENSION  
IDLER  
PULLEY  
REMOVE  
ALL  
PULLEYS  
ENGINE  
PULLEY  
FIGURE 4.35  
VIEW FROM UNDERNEATH TRACTOR  
FIGURE 4.33  
NOTE: When installing a new belt, make certain the  
stationary idler is mounted in the hole closest to the L.H.  
side of the tractor. See Figure 4.35.  
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 BELT  
FROM PULLEY  
RIGHT REAR  
TRACTOR FRAME  
CONNECT SPRING  
TO 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.  
28  
Section 4 - ADJUSTMENT & REPAIR  
38" Deck Drive Belt  
WARNING  
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.  
DO NOT attempt any adjustments, maintenance or  
service 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 from  
spark 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 pulley  
cover. See Figure 4.37.  
REMOVE  
SPINDLE  
PULLEY  
COVER  
REMOVE  
IDLER  
REMOVE BELT  
GUARD  
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.  
TENSION  
IDLER  
1/16”  
CLEARANCE  
(TYPICAL)  
FIGURE 4.37  
SPINDLE  
PULLEY  
SPINDLE  
PULLEY  
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.  
FIGURE 4.40  
SPINDLE PULLEY  
1/16”  
CLEARANCE  
IDLER PULLEY  
FIGURE 4.38  
29  
Section 4 - ADJUSTMENT & REPAIR  
4.5 BATTERY  
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 to  
disconnect wires from seat switch.  
5. Reinstall the two adjusting knobs.  
6. Lower operator's seat.  
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.  
REMOVE ADJUSTING  
KNOBS AND MOVE  
SEAT FORWARD  
WARNING  
The 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 with  
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.  
4.5.3. BATTERY SERVICE  
FIGURE 4.41  
1. Remove battery. See Section on 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. Remove negative ( - ) cable first.  
5. Remove positive ( + ) cable last.  
6. Remove battery. See Figure 4.42.  
4. With cell caps removed, 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.  
WARNING  
Cables must be connected to battery terminals in the  
proper position as shown in Figure 4.42. DO NOT  
attempt to charge battery while installed on tractor.  
DO NOT use "BOOST" chargers on the battery.  
REMOVE POSITIVE  
(+) CABLE LAST  
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 “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.  
WARNING  
REMOVE NEGATIVE (-)  
CABLE FIRST  
DO NOT attempt to charge battery while installed on the  
machine. DO NOT use “BOOST” chargers on the  
battery. DO NOT OVERFILL!  
FIGURE 4.42  
30  
Section 4 - ADJUSTMENT & REPAIR  
4. With cell caps removed, connect battery charger to  
battery terminals; RED to positive (+) and BLACK to  
negative (-) terminal.  
WARNING  
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.  
IMPORTANT: 3/16” above cell plates is the recommended  
level. However do not try to measure this dimension. Never  
place anything in battery other than specified electrolyte.  
4.5.5. BATTERY TESTING  
There are two types of battery tests: Unloaded and  
Loaded. 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.  
5. Slow charge the battery at 1 amp for 2 hours to  
bring the battery to full charge.  
6. After charging, check level of electrolyte and add  
as needed to bring level to 3/16” above cell plates.  
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 over  
terminals to prevent corrosion.  
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.  
10. Insert battery completely into battery housing.  
11. Reinstall seat assembly.  
WARNING  
Shield the positive terminal with terminal cover  
located on battery harness. This prevents metal from  
touching the positive terminal, which could cause  
sparks. Cables must be connected to battery  
terminals in the proper position. RED (Positive) cable  
must go to the ( + ) terminal. BLACK (Negative) cable  
must 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 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.  
4.5.7. BATTERY TESTING  
Battery Condition Chart  
State of Charge  
100% Charged w/ Sulfate Stop  
100% Charged  
75% Charged  
50% Charged  
Syringe Hydrometer  
Digital Voltmeter  
Five Ball Hydrometer  
Five Balls Floating  
Four Balls Floating  
Three Balls Floating  
Two Balls Floating  
One Ball Floating  
1.280  
1.265  
12.80v  
12.60v  
1.210  
12.40v  
1.160  
12.10v  
25% Charged  
1.120  
11.90v  
0% Charged  
Less than 1.100  
Less than 11.80v  
Zero Balls Floating  
31  
Section 4 - ADJUSTMENT & REPAIR  
AVAILABLE ACCESSORIES  
The SNAPPER Series F 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.  
AVAILABLE  
LT145H33GBV  
LT145H38GBV  
ACCESSORIES  
Thatcherizer  
LT150H38GBV  
6-1247  
6-1912  
6-1914  
6-1913  
6-1911  
6-1916  
6-1915  
6-1352  
6-1881  
6-1370  
6-1880  
6-1883  
6-1879  
6-1245  
6-1085  
6-1878  
6-1877  
6-1886  
6-1888  
6-3126  
6-1334  
6-1910  
NA  
6-1247  
6-1912  
6-1914  
6-1913  
6-1911  
6-1916  
6-1915  
6-1352  
6-1881  
6-1370  
6-1880  
6-1883  
6-1879  
6-1245  
6-1085  
6-1255  
NA  
6-0943  
6-0946  
6-3131  
6-1334  
6-1910  
6-0947  
6-1308  
6-1982  
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  
NA  
6-1982  
* Requires Dozer Blade Support Kit ***Requires Adapter Mounting Kit  
** Requires Snow Thrower Support Kit ****Requires Hitch/Subframe Kit  
32  
SECTION 5 - ELECTRICAL SYSTEM  
SCHEMATIC – WIRING HARNESS P.N. 2-6616  
LT145H33GBV & LT145H38GBV  
SCHEMATIC – WIRING HARNESS P.N. 7-3998  
LT150HG38KV  
33  
TROUBLESHOOTING GUIDE  
PROBLEM  
Starter Will Not  
Crank Engine  
PROBABLE CAUSE  
1. Battery dead.  
2. Blown fuse.  
CORRECTIVE ACTION  
1. Service battery.  
2. Replace fuse.  
3. Electrical connections loose or corroded.  
4. Defective ignition switch.  
5. Starter Spins without engaging.  
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.  
Engine Will Not  
Start  
1. Blade engagement switch in the “ON”  
position.  
1. Move blade engagement switch to “OFF”.  
2. Park brake not set.  
2. Set park brake.  
3. Fuel tank empty.  
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.  
4. Engine needs choking.  
5. Spark plug wire disconnected.  
6. Battery weak or dead.  
7. Faulty interlock switch.  
1. Operator not in seat.  
Engine Stalls After  
Running  
2. Engine speed control in the “CHOKE”  
position.  
2. Move engine speed control to “FAST”.  
3. Fuel tank empty.  
4. Engine air pre-cleaner and or air cleaner  
dirty.  
3. Fill with fuel to proper level.  
4. Clean free of all debris.  
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.  
5. Service spark plug.  
6. Replace fuel filter.  
7. Drain and clean fuel system.  
1. Lessen load by slowing ground speed.  
Engine Loses  
Power  
2. Engine air pre-cleaner or air cleaner dirty.  
3. Engine oil level low.  
4. Engine cooling fins and air screens  
excessively dirty.  
2. Clean or replace filters.  
3. Fill with engine oil to proper level.  
4. Clean free of all debris.  
5. Spark plug faulty.  
5. Service spark plug.  
6. Water, debris or stale fuel in fuel system.  
1. Engine speed control set too “FAST”.  
6. Drain and clean fuel system.  
1. Set engine speed control to “SLOW” and allow  
engine to idle. Then, turn key to “OFF”.  
Engine Backfires  
When Turned To  
“STOP”  
Excessive  
Vibration  
1. Damaged or bent mower blades.  
1. Service mower blade(s).  
2. Loose blade components.  
2. Service and tighten loose parts.  
3. Loose or missing air lift (if equipped).  
3. Replace air lifts. Tighten to proper torque.  
(Continued on next Page)  
34  
TROUBLESHOOTING GUIDE  
(Continued From Previous Page)  
PROBLEM  
PROBABLE CAUSE  
CORRECTIVE ACTION  
Tractor Will Not  
Move Or Loss Of  
Traction  
1. Speed control handle in the neutral “N”  
position.  
1. Place speed control in desired speed.  
2. Roll release control in “ROLL” position.  
2. Move roll release control to the engaged  
position.  
3. Low transmission oil level.  
4. Shifter out of adjustment.  
3. Bring oil to proper level.  
4. Adjust shifter.  
5. Traction drive belt requires adjustment.  
6. Traction drive belt requires replacement.  
1. Blade engagement switch in the “OFF”  
position.  
5. Adjust traction drive belt.  
6. Replace traction drive belt.  
1. Move switch to the “ON” position.  
Blade(s) Not  
Turning  
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.  
Cutting Grass  
Improperly  
2. Cutting height too low or high.  
3. Engine speed too slow.  
4. Forward speed too fast.  
2. Adjust cutting height.  
3. Move engine speed control to “FAST”.  
4. Move speed control to a slower speed.  
5. Deck side to side level requires adjustment. 5. Adjust side to side level.  
6. Deck front to rear level requires adjustment. 6. Adjust front to rear level.  
7. Cutting Blade dull or damaged.  
8. Blade belt requires replacement.  
9. Blade belt slipping.  
7. Sharpen cutting edges or replace blade.  
8. Replace blade belt.  
9. Replace blade belt.  
Poor Grass  
Discharge  
1. Engine speed too slow.  
1. Move engine speed control to “FAST”.  
2. Forward speed too fast.  
3. Grass is wet.  
2. Move speed control to a slower speed.  
3. Mow when grass is dry.  
4. Excessively worn or damaged blade(s).  
4. Service mower blade(s).  
5. Build up of grass clippings and debris under 5. Clean deck.  
deck.  
6. Improper blade(s) installed on deck.  
7. Blade(s) installed improperly on deck.  
1. Poor cable connections.  
6. Install proper SNAPPER blades.  
7. Install blades properly.  
1. Clean cables and battery terminals.  
Battery Will Not  
Charge  
2. Bad battery cell(s).  
3. Faulty alternator.  
1. Loose or missing oil filler cap on  
transmission.  
2. Replace with new battery.  
3. Contact engine manufacturer’s dealer.  
1. Check oil level and re-install oil cap.  
Oil Leaking From  
Transmission  
2. Leaking axle seats.  
3. Leaking at casing seal.  
2. Contact authorized SNAPPER dealer.  
3. Contact authorized SNAPPER dealer.  
35  
MAINTENANCE SCHEDULE  
EACH  
USE  
5
25  
50  
100  
EACH  
SUBJECT  
Engine  
SERVICE  
REFERENCE  
PAGES  
HOURS  
HOURS  
HOURS HOURS SEASON  
TO BE PERFORMED  
Check Oil Level  
Page 6  
X
Engine  
Engine  
Initial Oil Change  
Periodic Oil Change  
Page 12  
X
Page 13  
X*  
Air Pre-Cleaner Service Sponge Pre-  
Cleaner Element  
Engine Manual  
X**  
X**  
Air Cleaner  
Spark Plug  
Fuel Filter  
Replace Element  
Replace Plugs  
Replace Filter  
Engine  
Manual.  
Engine Manual  
& 16  
Page 15-16  
X
X
Engine Cooling Clean Shrouds & Fins  
System  
Engine Manual  
X**  
Battery  
Battery  
Check Electrolyte  
Charge Battery  
Page 30-31  
Page 30-31  
X
X
X
X
Tires  
Check Pressures  
Page 6  
X
X
X
Drive Belts  
Check For Wear And  
Tension  
Pages 26-28  
Mower Blades  
Mower Deck  
Check Wear, Damage,  
And Blade Brake  
Pages 13,25-26  
Page 6  
X
X
X
Clean Debris  
Accumulation  
X
X
Mower  
Deck  
Lubrication  
Points  
Hydrostatic  
Trans. Oil  
Reverse  
Lockout  
Mechanism  
Clean Outside and  
Underside  
Grease or Oil  
Page 6  
X
X
X
X
X
Pages 14-15  
Page 16  
Page 11  
Check Oil Level  
Check Function  
X
*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  
MAINTENANCE PARTS  
TRACTOR  
DRIVE BELTS  
MOWER BLADES  
MODEL No.  
Engine to Transmission  
Engine to Deck  
Standard  
NINJA  
LT145H33GBV  
LT145H38GBV  
LT150H38GBV  
7-3026  
7-3026  
7-3026  
2-6546  
3-5500  
3-5500  
3-4168  
4-2998  
4-2998  
2-4234  
2-6597  
2-6597  
36  
3 YEAR LIMITED WARRANTY  
For three (3) years from purchase date for the original purchaser's residential, non-commercial use, SNAPPER, through  
any authorized SNAPPER dealer will replace, free of charge (except for taxes where applicable), any part or parts found  
upon examination by the factory at McDonough, Georgia, to be defective in material or workmanship or both.  
For ninety (90) days from purchase date for the original purchaser's commercial, rental, or other non-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 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 prorated warranty period with free replacement if required during the first ninety (90) days  
from the original purchase date. SNAPPER will not be responsible for any installation cost incurred. The battery warranty  
only covers original equipment batteries and does not cover damage to the battery or machine caused by neglect or  
abuse, destruction by fire, explosion, freezing, overcharging, improper maintenance, or use of improper electrolyte.  
There is no other express warranty.  
DISCLAIMER OF WARRANTY  
Implied warranties, including those of merchantability and fitness for a particular purpose, are limited to three (3)  
years from purchase date for the original purchaser's residential or other non-commercial use, and ninety (90)  
days from purchase for the original purchaser's commercial, rental or other non-residential use, and to the extent  
permitted by law, any and all implied warranties are excluded. This is the exclusive remedy. Liabilities for  
consequential damages, under any and all warranties are excluded.  
Some states do not allow limitations on how long an implied warranty lasts, or do not allow the exclusion or  
limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you.  
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.  
WARNING: THE USE OF REPLACEMENT PARTS OTHER THAN GENUINE SNAPPER PARTS MAY IMPAIR THE  
SAFETY OF SNAPPER PRODUCTS AND WILL VOID ANY LIABILITY AND WARRANTY BY SNAPPER ASSOCIATED  
WITH THE USE OF SUCH PARTS.  
IMPORTANT: 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  
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PRIMARY MAINTENANCE  
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43  
Safety Instructions & Operator’s Manual for  
LAWN TRACTOR  
HYDROSTATIC DRIVE  
SERIES G  
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).  
WARNING  
BATTERY POSTS, TERMINALS AND RELATED ACCESSORIES CONTAIN LEAD AND LEAD COMPOUNDS,  
CHEMICALS KNOWN TO THE STATE OF CALIFORNIA TO CAUSE CANCER AND BIRTH DEFECTS OR OTHER  
REPRODUCTIVE HARM. WASH HANDS AFTER HANDLING.  
WARNING  
ENGINE EXHAUST, SOME OF ITS CONSTITUENTS, AND CERTAIN VEHICLE COMPONENTS CONTAIN OR  
EMIT CHEMICALS KNOWN TO THE STATE OF CALIFORNIA TO CAUSE CANCER OR OTHER  
REPRODUCTIVE HARM.  
COPYRIGHT © 2000  
SNAPPER INC.  
ALL RIGHTS RESERVED  
MANUAL No. 7-4025 (I.R. 9/19/00)  
44  

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