Snapper WLT145H38HBV, LT150H38HKV, LT145H38HBV, LT145H33HBV Owner’s Manual

Safety Instructions & Operator's Manual for

LAWN TRA CTOR

HYDROSTA TIC DRIVE

SERIES H

MODELS

HYDROSTA TIC DRIVE

LT145H33HBV LT145H38HBV

LT150H38HKV

WL T145H38HBV

MODEL NUMBER EXPLANATION

ILTI 1

MODEL DESIGNATION _

_5I m ,Ivl

ENGINE HP DRIVE SYSTEM TYPE

CUTTING WIDTH

LT/WLT - Lawn Tractor Model Designation 145 - 14.5 HP, 150 - 15.0 HP Engine Horse Power H - Hydrostatic Transmission

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!

_lBBIBm=_n mmmm

38 - 38" Cutting Width Mower H - Series Designation B - Briggs & Stratton, K - Kohler Engine

V - Over Head Valve Type Engine

SERIES DESIGNATION

ENGINE TYPE

ENGINE MODEL

.SNAPPER, McDonough,GA., 30253 U.S.A.

MANUAL No. 7-4379 (Rev 1, 8/28/01)

IMPORTANT SAFETY INSTRUCTIONS

WARNING: This powerful cutting machine is capable of amputating hands and feet and can throw objects that can cause injury and damage! Failure to comply with the following SAFETY instructions could result in serious

injury or death to the operator or other persons. The owner of the machine must understand these instructions

and must allow only persons who understand these instructions to operate machine. Each person operating the machine must be of sound mind and body and must not be under the influence of any substance, which might

impair vision, dexterity or judgment. If you have any questions pertaining to your machine which your dealer

cannot answer to your satisfaction, call or write the Customer Service Department at SNAPPER, McDonough, Georgia 30253. Phone: (1-800-935-2967).

PROTECTION FOR CHILDREN

Tragic accidents can occur if the operator is not alert to the presence of children. Children are often

attracted to the machine and the mowing activity.

Never assume that children will remain where you last

saw them.

1. KEEP children out of the mowing area and under

the watchful care of a responsible adult.

2. DO NOT allow children in yard when machine is operated (even with the blade OFF).

3. DO NOT allow children or others to ride on machine or on attachments (even with the blades

OFF). They may fall and be seriously injured.

4. DO NOT allow pre-teenage children to operate machine.

5. ALLOW only responsible adults & teenagers with mature judgment under close adult supervision to operate machine.

6. DO NOT operate blades in reverse. STOP BLADES.

LOOK and SEE behind and down for children, pets

and hazards before and while backing.

7. USE EXTRA CARE when approaching blind corners, shrubs, trees, or other objects that may

obscure vision.

PROTECTION AGAINST TIPOVERS

Slopes are a major factor related to loss-of-control and tip-over accidents, which can result in severe

injury or death. All slopes require extra CAUTION. If

you cannot back up the slope or if you feel uneasy on the slope, DO NOT mow it. Use extra care with grass

catchers or other attachments; these affect the

handling and the stability of the machine.

1. DO NOT operate machine on slopes exceeding 15 degrees (27% grade).

2. Exercise EXTREME CAUTION on 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 face of slopes. Operate up and down. Practice on

slopes with blades off.

4. AVOID uphill starts. If machine stops going uphill or tires lose traction, turn blades OFF and back slowly down the slope.

PROTECTION AGAINST TIPOVERS

(Continued From Previous Column)

5. STAY ALERT for holes and other hidden hazards. Tall grass can hide obstacles. Keep away from

ditches, washouts, culverts, fences and

protruding objects.

6. KEEP A SAFE DISTANCE (at least 3 feet) away from edge of ditches and other drop offs. The machine could turn over if an edge caves in.

7. Always begin forward motion slowly and with caution.

8. Use weights or a weighted load carrier inaccordance with 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. DO NOT operate machine under any condition where traction, steering or stability is doubtful.

PREPARATION

1. Read, understand, and follow instructions and warnings in this manual and on the machine, engine and attachments. Know the controls and the proper use of the machine before starting.

2. Only mature, responsible persons shall operate

the machine and only after proper instruction.

3. Data indicates that operators age 60 and above, are involved in a large percentage of mower-

related injuries. These operators should evaluate

their ability to operate the mower safely enough to

protect themselves and others from serious injury.

4. Handle fuel with extra care. Fuels are flammable

and vapors are explosive. Use only an approved fuel container. DO NOT remove fuel cap or add fuel with engine running. Add fuel outdoors only with engine stopped and cool. Clean spilled fuel

from machine. DO NOT smoke.

5. Practice operation of machine with BLADES OFF to learn controls and develop skills.

6. Check the area to be mowed and remove all objects such as toys, wire, rocks, limbs and other

objects that could cause injury if thrown by blade or interfere with mowing.

IMPORTANT SAFETY INSTRUCTIONS

PREPARATION

(Continued From Previous Page)

7. Keep people and pets out of mowing 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.

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 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.

area.

OPERATION

1. Mount and dismount machine from left side.

2. Start engine from operator's seat, if possible. Make sure blades are OFF and parking brake is

set.

3. DO NOT leave machine with engine running.

STOP engine, STOP blades, SET brake, and

Remove key before leaving operators position

of any reason.

4. DO NOT operate machine unless properly

seated with feet on feet rests or pedal(s).

5. STOP BLADES and ENGINE and make sure

blades have stopped before removing grass catcher or unclogging mower to prevent loss of fingers or hand.

6. Blades must be OFF except 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.

9. Slow down before turning.

10. Watch out for traffic when near or crossing

roadways.

11. STOP engine immediately after striking an obstruction. Inspect machine and repair damage before resuming operation.

12. Operate machine only in daylight or with good artificial light.

13. Move joystick (if equipped) SLOWLY to maintain control during speed and directional changes.

OPERATION

(Continued From Previous Column)

14. Exercise CAUTION when pulling loads. Limit loads to those you can safely control and attach loads to

hitch plate as specified with SNAPPER attachment instructions.

15. DO NOT operate engine in enclosed areas. Engine exhaust gases contain carbon monoxide, a deadly poison.

MAINTENANCE

1. DO NOT store machine or fuel container inside where fumes may reach an open flame, spark or

pilot light such as in awater 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.

4. Check brakes frequently; adjust, repair or replace as needed.

5. Keep all bolts, nuts and screws properly tight. Check that all cotter pins are in proper position.

6. Always provide adequate ventilation when running engine. Exhaust gases contain carbon monoxide, an odorless and deadly poison.

7. Disconnect negative (black) cable from battery before performing maintenance or service. Cranking engine could cause injury.

8. DO NOT work under machine without safety blocks.

9. Service engine and make adjustments only when engine is stopped. Remove spark plug wire(s) from spark plug(s) and secure wire(s) away from spark plug(s).

10. DO NOT change engine governor speed settings or overspeed engine.

11. Lubricate machine at intervals specified in manual to prevent controls from binding.

12. 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.

16. If battery is removed, DO NOT operate engine without insulating Positive + battery cable terminal with electrical tape, or sparking from the battery

cables can result.

TABLE OF CONTENTS

IMPORTANT SAFETY INSTRUCTIONS .......... 2 - 3

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

SECTION 3 -

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

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)

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)

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

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

IMPORTANT

The figures and illustrations in this manual are provided for reference only and may differ from your specific model. Contact your Snapper dealer if you have questions.

WARRANTY .................................................... 37

PRIMARY MAINTENANCE ............................ 38-41

Section 1 - FAMILIARIZATION

PARK BRAKE

LEVER

DOWN PEDAL

•.................................................................................................................................................................... =

CUTTING HEIGHT ADJUSTMENT LEVER

SEAT ADJUSTMENT KN_R

OPERATOR'S

CONTROL PANEL

"'.. KEY

STEERING

WHEEL

...... CONTROL

°%

"*%. ........................................................................

SPEED

LEVER

BATTERY (UNDERSEAT)

OVERRIDE

LEVER

BLADE ENGAGEMENT LEVER

DASHBOARD CONTROLS

FUEL TANK (UNDER HOOD)

HOOD

HEADLIGHTS

DISCHARGE DEFLECTOR

MOWING DECK (33" SHOWN) ENGINE

FIGURE 1.1

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.

Specific details involving the engine are found in the separate Engine Owner's Manual.

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.

CONTROLS

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.

Section 2 - OPERATING INSTRUCTIONS

2.1 PRE-START CHECKLIST

Make the following checks and perform service as required before each start-up.

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.

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.

ANEA

FUEL TANK q

FIGURE 2.2

TIGHTEN CAP

_ AFTER

FILLING TANK

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.

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".

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.

LOOSEN ADJUSTING KNOBS TO ADJUST

SEAT ......

FIGURE 2.3

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 of

any stationary obstacles!

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.

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

BLADE ENGAGEMENT

LEVER

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: 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.

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.

FAST

PUSH BLADEENGAGEMENT LEVER DOWN TO "OFF" TO START ENGINE

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 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.

CLUTCH/BRAKE PEDAL -. n

FIGURE 2.4

SLOW

ENGINE

SPEED

CONTROL

FIGURE 2.6

WARNING

DO NOT leave machine with engine running. Stop engine. Stop blade. Set parking brake. Remove key.

KEY

WAY DOWN TO START

ENGINE

FIGURE 2.5

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 for forward motion or to the rear for reverse motion. See

Figure 2.7.

--REVERSE

FORWARD SPEEDS

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.

FIGURE 2.9

2.4.2. STOPPING WHEEL DRIVE

1. Fully depress clutch/brake pedal to stop wheel drive. See Figure 2.10.

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 ENGAGEMENTLEVER UP

TO"ON'TO START

MOWER BLADE(S)

::r BLADE

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.

FULLY DEPRESS CLUTCH/BRAKE PEDAL TO

STOP WHEEL MOTION

FIGURE 2.10

)

Section 2 - OPERATING INSTRUCTIONS

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.

BLADE

j LEVER

! OFF

FIGURE 2.11

WARNING

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.

2.4.5. 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.

PARK BRAKE

CLUTCH/BRAKE

LEVER

FIGURE 2.13

2.5. CUTTING HEIGHT ADJUSTMENT

1. Depress lock button on cutting height adjustment

lever. See Figure 2.14.

DEPRESS LOCK BUTTON m

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

MOVE PARK BRAKE LEVER "UP" TO

ENGAGE PARK BRAKE

PARK BRAKE

LEVER

FIGURE 2.12

LOWEST CUT

FIGURE 2.14

2. Raise or lower deck to any of six positions as

desired. Release lock button.

DO NOT park machine on slopes.

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.

PULL ROLL RELEASE CONTROL ALL THE WAY

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.

PUSH ROLL RELEASE

IN TO ENGAGE HYDRO TRANSMISSION

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.

ROLL RELEASE CONTROL

NOTE: The transmission will not propel the tractor if it is

left in the "ROLL" position.

Section 2 - OPERATING INSTRUCTIONS

2.7. REVERSE LOCKOUT MECHANISM

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.

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.

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.

2.7.1.

Reverse Lockout Mechanism Override

Stop machine. Stop blades.

Depress and hold Override Lever.

Raise blade engagement lever to "ON".

Release override lever.

WARNING

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.

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, pets

and hazards before and while backing.

BLADES must be turned off before backing machine. DO NOT allow children on machine (even with

blades off) or in yard when mowing.

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 informationfor a particularTractor,alwaysmentbn 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 headingLAWN MOWERS. Forengineparts and service,lookfor the enginemanufacturer'sdealers underthe

heading,ENGINES- gasoline.

3.2 SERVICE - AFTER FIRST 5 HOURS

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.

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. Ibs.See Figure 3.2.

38" deck - 70 to 80 ft.Ibs. See Figure 3.3.

OIL FILLER

TUBE

OIL DRAIN

FASTEXTM I

3.2.1. CHANGE ENGINE OIL

The engine is equipped with a FastexTM oil 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 oildrain.

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.

I 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

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 3.1

TORQUE 33" BLADE TO 30 TO 40 FT, LBS,

FIGURE 3.2

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 after I blades have been turned off. DO NOT operate machine I until blade brake has been adjusted and functioning I

properly. Contact your SNAPPER dealer for assistance. I

Section 3 - MAINTENANCE

3.2.3. CHECK MOWER BLADE (Continued)

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".

2. Measure blade cable extension spring. Spring should extend 1" +/-1/8" for proper belt tension. See

Figure 3.4.

BLADE CABLE EXTENSION SPRING

FIGURE 3.4

3. To adjust tension, Refer to Section "BLADE

BELT ADJUSTMENT".

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.

AIR

CLEANER

ENGINE AIR PRE-CLEANER

FIGURE 3.5

3. Remove and replace engine air cleaner. See

Figure 3.5. Refer to engine owner's manual for service instructions.

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 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 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.

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".

Section 3 - MAINTENANCE

3.3.4. TRACTOR LUBRICATION

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.

SPINDLE

LUBRICATION FITTING

FRONT WHEEL BEARING LUBRICATION

FITTING

FIGURE 3.6

2. Axle Spindles Lubricate each axle spindle with 1 to 3 shots of

general purpose grease. See Figure 3.6.

NOTE: The right hand spindle fitting faces forward and the left hand spindle fitting faces to the rear.

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.

. CLUTCH/BRAKE

// PIVOT LUBRICATION

FITTING

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

See Figure 3.8.

FUEL TANK

SECTOR

SECTOR GEAR

FIGURE 3.8

5. Steering Shaft Lubricate steering shaft wear points with a light coat

of SAE30 oil.

6. Steering Drag Link Lubricate both ends of steering drag link with a small

amount of SAE30 oil. See Figure 3.9.

LUBRICATION POINT

FIGURE 3.7

FIGURE 3.9

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

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.

LUBRICATE COMPONENTS ON

UNDERSIDE OF TRACTOR

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!

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 hoses from both sides of fuel filter. See Figure 3.13.

FUEL TANK

BLADE

-]"" _, ENGAGEMENT

LEVER

FIGURE 3.11

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.

FUEL FILTER

REMOVE HOSE CLAMPS

FIGURE 3.13

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.

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.

See

3.4.4. HYDROSTATIC TRANSMISSION OIL

The hydrostatic transmission does not require maintenance. If any problems arise return

immediately to a Snapper dealer.

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.

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.

I Blades must stop rotating in 5 seconds or less after I

blades have been turned off. DO NOT operate l machine until blade brake has been adjusted and l functioning properly. Contact your SNAPPER dealerl 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.

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.

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

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.

Section 4 - ADJUSTMENT & REPAIR

WARNING

sufficient time to cool. If deck front to rear level is not correct, this could cause blade belt problems.

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)".

ENGAGEMENT

__ MOVE BLADE

LEVER TO "OFF"

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.

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.

LEAST TENSION

MOST TENSION

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".

7. Measure blade cable extension spring. The length of the spring (x) should increase by 1" (+/-1/8"). See Figure

4.3.

BLADE CABLE EXTENSION

SPRING

X + 1" +/- 1/8

ROD

NUT & BOLT

FIGURE 4.4

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".

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.

(Continued on next page)

FIGURE 4.3

Section 4 - ADJUSTMENT & REPAIR

4.2.4. ADJUSTING MOWER BLADE- 33" DECK

(Continued from previous page)

MEASURE THE DISTANCE BETWEEN DECK LIP AND

BLADE TIP

FIGURE 4.5

WARNING

sufficient time to cool.

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 centerrear 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 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 Figure4.8.

SECTOR

WASHEF

NOTE: 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.

LOOSEN JAM NUTS, ADJUST

JACK SCREWS "IN" OR "OUT" TO LEVEL BLADE WITH DECK

.............. /t,f \ AIZ"

Ji - " JACK SCREW

' a "

SIDE VIEW OF DECK

FIGURE 4.6

FIGURE 4.7

33" DECK SHOWN

SIDE TO SIDE VIEW

t MEASURE___ ANGLE IRON t

FROM BLADE

TIPS TO FLOOR

FIGURE 4.8

8. If measurement differs more than 1/8", adjust as

follows: a. Loosen front liftarm pivot belton front of right side rail.

See Figure4.9.

LOOSEN PIVOT BOLT e_ _Y/_

LOOSEN SHOULDER-- _ BOLT __/, . -

AS REQUIRED

FIGURE 4.9

Section 4 - ADJUSTMENT & REPAIR

WARNING

sufficient time to cool.

4.2.5. 33" DECK LEVEL ADJUSTMENT (SIDE TO SIDE)

(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.

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.

PLATES

33"DECK SHOWN

FRONT

X + 1/4" X

MEASURE FROM BLADE TIPS TO FLOOR

REAR

FIGURE 4.11

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.

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.

.LOWEST DECK

DECK

REMOVE HAIR PIN &

WARHI=R

FIGURE 4.10

2. Move sector plate as required to raise or lower deck.

NOTE: The deck should be set so that the rear of the deck

is 1/4" lower than the front. See Figure 4.11.

JAM NUT

H_RPIN

WASHER

FRONTLIFTROD

FIGURE 4.12

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 be

reinstalled into front lift arm without liftingdeck.

9. Secure liftrod to lift arm with washer and hair pin.

10. Place sector plates onto rear hanger brackets and

secure with washers and hair pins.

11. Raise deck and remove wooden blocks.

12. Repeat steps for front to rear level until levelness is acquired.

Section 4 - ADJUSTMENT & REPAIR

WARNING

sufficient time to cool.

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..

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 liftarms. See Figure 4.13.

FRONT OF TRACTOR

38" DECK

FRONT LIFT ROD

HAIR PIN

FIGURE 4.14

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.

2-1/2" TALL BLOCK

CHECK

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 inthe 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)

FRONT OF TRACTOR

• 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. Ibs.

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.

Section 4 - ADJUSTMENT & REPAIR

WARNING

DO NOT attempt any adjustments, maintenance or service with the engine or blade running. STOP blade.

sufficient time to cool.

4.2.9. 38" DECK LEVEL ADJUSTMENT

(FRONT TO REAR)

1. Position the blades as shown. See Figure 4.16.

FRONT OF TRACTOR

11,

REAR TO FRONT VIEW OF DECK

4.3

TRACTOR DRIVE COMPONENTS

4.3.1. BRAKE ADJUSTMENT

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

L ANGLE IRON 1

FIGURE 4.17

X - 1/8"

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 arefinished 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

Section 4 - ADJUSTMENT & REPAIR

WARNING

DO NOT attempt any adjustments, maintenance or service with the engine or blade running. STOP blade.

sufficient time to cool.

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.

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.

NEUTRAL ADJUSTMENT

NUT

TURN NUT CLOCKWISE TO REDUCE FORWARD CREEP

ROTATE TO ,,

REDUCE ' PLAY _.

MOUNTING NUT

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

FIGURE 4.20

I WARNING

DO NOT adjust shift linkage with engine running. The

adjustment requires hands to be close to rotating

parts. STOP engine. REMOVE key.

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.

BELT GUIDE

STATIONARY

MOUNTING BOLT

MOUNTING BRACKET

TENSION

LESS

I TENSION

MORE TENSION

LESS TENSION

MOUNTING BRACKET

BELT GUIDE - MAKE CERTAIN BELT GUIDE ORIENTATION 18

MAINTAINED.

STATIONARY IDLER

MOUNTING BOLT

FIGURE 4.21

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. 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.

NOTCH FORMING "_ W

__/_ BLADE

. -'_/_"_l_ WEAR LIMIT.

___ CUTTING EDGE

._.__ WORN,

DANGEROUS CONDITION! DO NOT USE ON MOWER!

FIGURE 4.22

4.4.2. (NINJA) BLADE WEAR LIMITS

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.

. ,;"¢.

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.

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 ingood condition. See Figure 4.24.

STANDARD BLADE

_ CUTTING EDGE

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.

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.

: ""_" "_ ._I "J--NEW

AR LIMIT. (CRACKS

OR NOTCHES BEGIN TO APPEAR)

DANGEROUS CONDITION! DO NOT USE ON MOWER!

FIGURE 4.23

BLADE

22° TO 28°

BLADE TIP

FIGURE 4.25

Section 4 - ADJUSTMENT & REPAIR

WARNING

DO NOT attempt any adjustments, maintenance or service with the engine or blade running. STOP blade.

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

_F SPINDLE

ASSEMBLY

BLADE _

(2 REQUI_ CONE

MOUNTING

I_: NUT

FIGURE 4.27

BLADE MOUNTING BOLTS

FIGURE 4.26

6. Install new blade onto blade mounting bar.

7. Torque 30 to 40 ft Ibs.

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.

6. Install new blades.

7. Torque 70 to 90 ft Ibs.

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 eng ne "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.

FRONT LIFT

ARM

FRONT ROD

WASHER "_HAIR PIN

FIGURE 4.28

Section 4 - ADJUSTMENT & REPAIR

WARNING

DO NOT attempt any adjustments, maintenance or service with the engine or blade running. STOP blade.

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.

30" & 33" BELT GUIDES SHOWN

ENGINE PULLEY BOTTOM GROOVE

FIGURE 4.30

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.

(_ _ MOUNTING

"_ _ BELT GUIDE

BOLTS (2 EACH SIDE_

•

FRONT DECK HANGER ROD

FRONT LIFT ARM H_R PIN

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.

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. RIGHTREAR

Remove deck drive belt from engine pulley bottom TRACTOR groove. See Figure 4.30. FRAME

2. Slide belt guide assembly to the rear and remove.

3. Disconnect traction belt idler pulley spring from

tractor frame. See Figure 4.32.

FIGURE 4.31

SPRING FROM

FRAMI=

FIGURE 4.32

Section 4 - ADJUSTMENT & REPAIR

WARNING

DO NOT attempt any adjustments, maintenance or service with the engine or blade running. STOP blade.

sufficient time to cool.

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 PULLEYS _ TRANSMISSION

PULLEY

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.

TRANSMISSION

DRIVE BELT

I STATIONARY IDLER

PULLEY

IDLER

TENSION

L--ENGINE --IDLER

PULLEY PULLEYS

PULLEY

VIEW FROM UNDERNEATH TRACTOR

FIGURE 4.33

5. Remove traction drive belt from engine pulley top

groove. See Figure 4.34.

REMOVE

FROM PULLEY

FIGURE 4.35

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.

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 _nreverse order of removal.

RIGHT REAR

TRACTOR FRAME

CONNECT SPRING TO FRAME

FIGURE 4.34

6. Remove belt from center belt guide.

7. Pull belt until it can be removed from transmission

pulley.

FIGURE 4.36

Section 4 - ADJUSTMENT & REPAIR

_, WARNING _k

DO NOT attempt any adjustments, maintenance or service with the engine or blade running. STOP blade.

sufficient time to cool.

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

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.

GUARD

FIGURE 4.37

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.

SPINDLE PULLEY

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 1/16 I_ IDL R

CLEARANCE . _1, _1 E

..................

FIGURE 4.40

FIGURE 4.38

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.

KNOBS AND MOVE

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 the proper position as shown. DO NOT attempt to charge battery while installed on tractor. DO NOT use "BOOST" chargers on the battery. If battery is removed, DO NOT operate engine without insulating Positive + battery cable terminal with electrical tape, or sparking from battery cables can result.

POSITIVE

(+) CABLE LAST

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 disconnect wires from seat switch.

5. Reinstall the two adjusting knobs.

6. Lower operator's seat.

care not to

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

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. 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.

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.

REMOVE NEGATIVE (-) CABLE FIRST

FIGURE 4.42

WARNING thel

DO NOT attempt to charge battery while installed on the I

machine, DO NOT use "BOOST" chargers on

battery, DO NOT OVERFILL! I

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