Snapper Lawn Mower YZ18336BVE YZ18386BVE User Manual

Safety Instructions & Operator’s Manual for

SCRAMBLER

HYDRO DRIVE

SERIES 6

MODELS

YZ18336BVE

YZ18386BVE

MODEL NUMBER EXPLANATION

B V

MODEL DESIGNATION

DRIVE SYSTEM TYPE

ENGINE HORSE POWER *

CUTTING WIDTH

ENGINE OPTIONS

ENGINE TYPE

SERIES DESIGNATION

Y – SCRAMBLER

Z – Zero Turning Radius

18 – 18.0 HP Engine

33 - 33” Cutting Deck

38 - 38” Cutting Deck

6 - Series Designation

B - Briggs Engine

V – Over Head Valve

E - Electric Start

Thank you for buying a SNAPPER Product! Before operating your SCRAMBLER, read this manual carefully

and pay particular attention to the “IMPORTANT SAFETY INSTRUCTIONS” on Pages 2 - 4. Remember that all

power equipment can be dangerous if used improperly. Also keep in mind that SAFETY requires careful use in

accordance with the operating instructions and common sense!

NOTE: Specifications are correct at time of printing and are subject to change without notice.

* Actual sustained equipment horsepower will likely be lower due to operating limitations and environmental factors.

SNAPPER – A DIVISION OF SIMPLICITY MFG., INC.

MANUAL No. 5-0405 (I.R. 7/27/04)

IMPORTANT SAFETY INSTRUCTIONS

PREPARATION

(Continued From Previous Page)

OPERATION

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.

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.

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.

1. Mount and dismount machine from left side.

Keep clear of discharge opening at all times.

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.

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.

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 and working. DO

NOT point discharge at people, passing cars,

windows or doors.

SAFE HANDLING OF GASOLINE

To avoid personal injury or property damage, use

extreme care in handling gasoline. Gasoline is

extremely flammable and the vapors are explosive

1. Extinguish all cigarettes, cigars, pipes and

other sources of ignition.

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.

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. On slopes, the weight of the towed equipment

may cause loss of traction and loss of control.

When towing, travel slowly and allow extra

distance to stop.

16. DO NOT operate engine in enclosed areas.

Engine exhaust gases contain carbon

monoxide, a deadly poison.

2. Use only an approved fuel container.

3. DO NOT remove fuel cap or add fuel with the

engine running. Allow the engine to cool before

refueling.

4. DO NOT refuel the machine indoors.

5. DO NOT store the machine or fuel container

inside where there is an open flame, spark or

pilot light such as on a water heater or other

appliances.

6. DO NOT fill fuel containers inside a vehicle or

on a truck or trailer bed with a plastic liner.

Always place the containers on the ground

away from the vehicle before filling.

7. Remove gas-powered equipment from the

vehicle or trailer and refuel it on the ground. If

this is not possible, then refuel equipment

using a portable container, rather than a

gasoline dispenser nozzle.

8. DO NOT start gas powered equipment in

enclosed vehicles or trailers.

9. Keep the nozzle in contact with the rim of the

fuel tank or container opening at all times until

fueling is complete. DO NOT use a nozzle lock-

open device

17. DO NOT discharge material against a wall or

obstruction. Material may ricochet back

towards the operator.

18. Only use accessories approved by the

manufacturer. See manufacturer’s instructions

for proper operation and installation of

accessories.

10. If fuel is spilled on clothing, change clothing

immediately.

11. Never overfill a fuel tank. Replace fuel cap and

tighten securely.

IMPORTANT SAFETY INSTRUCTIONS

TOWING

MAINTENANCE

1. Tow only with a machine that has a hitch

designed for towing. DO NOT attach towed

equipment except at the hitch point.

(Continued From Previous Column)

15. Maintain or replace safety and instruction labels

as necessary.

16. Use only genuine SNAPPER replacement parts

to assure that original standards are maintained.

2. Follow the manufacturer’s recommendation for

weight limits for towed equipment and towing on

slopes.

3. DO NOT allow children or others on towed

equipment.

4. On slopes, the weight of the towed equipment

may cause loss of traction and loss of control.

5. Travel slowly and allow extra distance to stop.

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.

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.

TABLE OF CONTENTS

IMPORTANT SAFETY INSTRUCTIONS........................................................................ 2-4

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

SECTION 1 - FAMILIARIZATION.......................................................................................6

SECTION 2 - OPERATING INSTRUCTIONS............................................................... 7-10

Pre-start Checklist ........................................................................................... 7-8

Rolling Machine w/o Engine Running................................................................7

Starting Engine.....................................................................................................8

Starting & Stopping Engine, Mower Blades......................................................9

Starting & Stopping Wheel Drive........................................................................9

Setting & Releasing Parking Brake ....................................................................9

Cutting Height Adjustment................................................................................10

Safety Interlock System Checks.......................................................................10

SECTION 3 - MAINTENANCE INSTRUCTIONS ...................................................... 11-15

Service - After First 5 Hours..............................................................................11

Change Engine Oil ..........................................................................................11

Check Mower Blade........................................................................................11

Check Mower Drive Belt.................................................................................12

Check Transaxle Drive Belts..........................................................................12

Service - Every 25 Operating Hours .................................................................12

Check Mower Components...................................................................... 13-14

Mower Blade Spindle - Lubrication...............................................................13

Mower Deck Linkage – Lubrication...............................................................14

Front Wheel Bearings - Lubrication..............................................................14

Front Caster Wheel Pivot Shaft - Lubrication ..............................................14

Parking Brake Pivot Bushings - Lubrication................................................14

Service – Annually..............................................................................................15

Engine ..............................................................................................................15

Air Filter............................................................................................................15

Oil Filter............................................................................................................15

Engine Oil.........................................................................................................15

Transaxle..........................................................................................................15

Fuel Filter .........................................................................................................15

Storage - Out of Season ....................................................................................15

SECTION 4 - ADJUSTMENTS AND REPAIR............................................................ 16-24

Joystick Adjustments ........................................................................................16

Engine Adjustments & Repair...........................................................................16

Mower Deck & Component Adjustments.........................................................16

Mower Drive Belt Adjustment ...........................................................................17

Mower Drive Belt Removal & Replacement............................................... 17-18

Blade Brake Adjustment....................................................................................18

Checking Mower Blade Straightness......................................................... 18-19

Mower Deck Adjustment (Levelness) Side to Side.........................................20

Mower Deck Adjustment (Levelness) Front to Rear.......................................21

Mower Deck Timing Rod....................................................................................21

Wheel Brake Adjustment...................................................................................22

Mower Blade Replacement.......................................................................... 22-23

Blade Wear Limits...........................................................................................22

Blade Sharpening............................................................................................22

Blade Replacement ............................................................................................23

Battery Removal .................................................................................................23

Battery Installation .............................................................................................23

Battery Service & Charging...............................................................................23

Battery Storage...................................................................................................23

Battery Testing ...................................................................................................24

New Battery Preparation....................................................................................24

TROUBLESHOOTING................................................................................................ 25-26

SERVICE SCHEDULE......................................................................................................27

Maintenance/Replacement Parts......................................................................27

WARRANTY......................................................................................................................28

PRIMARY MAINTENANCE ........................................................................................ 29-32

PRODUCT REGISTRATION FORM.................................................................................33

Section 1 - FAMILIARIZATION

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.

PARKING

BRAKE

JOYSTICK

CONTROL

HANDLE

BRAKE RELEASE

BUTTON

KEY

SWITCH

CONTROL PANEL:

ENGINE SPEED & CHOKE

BLADE SWITCH

DECK LIFT

HANDLE

FOOT

REST

OPERATOR’S SEAT

DECK

DISCHARGE

DEFLECTOR

FIGURE 1.1

1.1 INTRODUCTION

This manual has been prepared for the operator’s of the

SNAPPER SCRAMBLER. Its purpose, aside from

1.2 NOMENCLATURE

The nomenclature drawing above, Figure 1.1, shows the

essential parts of the SNAPPER SCRAMBLER. It is

recommended that all operators of this equipment

become thoroughly familiar with the controls,

components, and operation of this machine before

operating. Specific details involving the engine are

found in the separate engine owner’s manual. Study

these manuals before operating and keep both handy

for future reference. 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.

recommending standard operating procedures and routine

service requirements, is to promote SAFETY through the

use of accepted operating practices. Read, Understand

and Follow the IMPORTANT SAFETY INSTRUCTIONS

on Pages 2 - 4 of this manual and All SAFETY messages

on the SCRAMBLER and its attachments before operating.

SNAPPER recommends returning the SCRAMBLER to an

authorized SNAPPER dealer annually for inspection and

addition of any new devices, which might upgrade the

safety of the mower.

Section 2 - OPERATING INSTRUCTIONS

2.1 PRE-START CHECK LIST

2.1.5. Clean exterior surfaces of cutting deck and

Make the following checks and perform the service

required before each start-up.

2.1.1. Check tires and add or release air as needed

to bring pressure to 12 P.S.I. in front 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.

2.1.3. Check engine oil and add oil as needed to

bring level up to the FULL mark. Refer to engine

owner’s manual for oil specifications. See Figure 2.1.

engine of any accumulation of dirt, grass, oil, etc.

Keep engine air intake screen and cooling fins clear

at all times.

2.1.6. Add fuel to tank of the SCRAMBLER outside

where fumes can safely dissipate. Refer to engine

owner’s manual for fuel specifications. Make sure

fuel filler cap is tight and vent is open after

refueling. See Figure 2.3. Open fuel valve located

in fuel line.

ENGINE OIL DIPSTICK

FUEL FILLER CAP

WITH VENT.

SAFE LEVEL

AREA

TIGHTEN CAP AND

OPEN VENT AFTER

REFUELING.

FIGURE 2.1

2.1.4. Check Blade switch to insure it works freely.

Switch is pulled “OUT” into the “ON” position for

blade engagement or pushed back “IN” into the

“OFF” position for blade disengagement. See

Figure 2.2. IMPORTANT: Blade rotation must stop

in 5 seconds or less after moving blade switch to

“OFF”. Refer to Section “Blade Brake Adjustment”.

FIGURE 2.3

IMPORTANT: To roll the machine without the engine

running, pressure within the hydraulic pumps must be

released. Tilt seat up and move control lever down to

release pressure. NOTE: Control lever must be in the

“UP” position to drive machine. See Figure 2.4.

DO NOT USE CONTROL TO RELEASE PRESSURE AND

COAST DOWN SLOPES. RELEASE PRESSURE ONLY WHEN

MACHINE MOTION CAN BE CONTROLLED AND ENGINE OFF.

MOVE CONTROL

LEVER UP TO

DRIVE MACHINE

PULL “OUT”

TO ENGAGE

BLADE

SWITCH

CONTROL

LEVER

PUSH “IN” TO

DISENGAGE

BATTERY

MOVE CONTROL LEVER

DOWN TO ROLL

MACHINE

FIGURE 2.2

FIGURE 2.4

Section 2 - OPERATING INSTRUCTIONS

IMPORTANT: This SCRAMBLER is equipped with

hydrostatic drive. The forward, rearward and steering

movement of the machine is controlled by a joystick

lever. Joystick operations should be performed only

from the operator’s position in the seat. A small

movement of the joystick can cause the machine to

move instantly. Move joystick very carefully and slowly.

WARNING

DO NOT leave machine with engine running. STOP

engine. STOP blades. Engage park brake. Remove

key. DO NOT park machine on slopes.

1. Always move the joystick to the center position to

“STOP” machine. IMPORTANT: To stop machine

always return the joystick with hand assistance to the

neutral position. Always engage parking brake when

leaving operator’s seat.

2. Move the joystick forward to propel the machine

forward.

JOYSTICK IS IN

NEUTRAL POSITION

START

POSITION

3. Move the joystick rearward to propel the machine

backward.

RUN

4. Move the joystick to the right to rotate the front of

the machine in circular motion to the right, as in

turning around to go in a different direction.

5. Move the joystick to the left to rotate the front of the

machine in circular motion to the left, as in turning

around to go in a different direction.

TURN KEY

POSITION

TO START

POSITION

STOP

POSITION

WARNING

‘Zero-turning’ the machine at any speed can result in

operator disorientation, or in operator being thrown

from the machine. Exercise extreme caution when

executing a zero-turn.

FIGURE 2.5

2.2 STARTING & OPERATION

PARKING BRAKE

ENGAGED

MOVE ENGINE

2.2.1. ENGINE (ELECTRIC START)

SPEED CONTROL

PAST FAST (RABBIT)

DETENT TO CHOKE

IMPORTANT: When the ignition key is turned to

“START”, the engine will not turn over and will not

start unless the Parking Brake is engaged and the

Blade Switch is in the “Off” position. The operator

should be in the seat. Start engine as follows:

1. Move joystick lever to (N) Neutral position. See

Figure 2.5.

2. Make certain the blade switch is in the “Off”

position. See Figure 2.6.

3. Make certain the parking brake is engaged. See

Figure 2.5.

4. Open vent on fuel cap by turning

counterclockwise. Open fuel valve located in fuel

line. IMPORTANT: Failure to open vent and fuel

valve will cause engine to stall or not to start.

5. Move engine speed control forward past the “Fast”

(Rabbit) detent to the “Choke” position. See Figure

2.6.

FIGURE 2.6

6. Turn key to the “START” position until engine

starts. See Figure 2.5. NOTE: If after 5 seconds of

cranking the engine and it does not start, release the

key. Attempt starting again after waiting for

approximately 20 seconds.

7. After engine starts, move engine speed control

back from “choke” position to the desired speed

position. Allow a brief warm-up until engine runs

smooth.

Section 2 - OPERATING INSTRUCTIONS

WARNING

DO NOT operate blades in reverse. STOP BLADES.

LOOK and SEE behind and down for children, pets

and hazards before and while backing.

2.2.3. MOWER BLADE

1. With engine running, move engine speed control

to the Rabbit or “fast” detent. (NOTE: Moving control

past detent will engage choke and engine will stall.)

2. Pull the blade switch out into the “ON” position to

engage the mower blades. See Figure 2.7.

TURN KEY

TO STOP

POSITION

MOVE ENGINE

SPEED CONTROL

TO ‘FAST’ DETENT,

PULL BLADE

FIGURE 2.8

SWITCH OUT AND

RELEASE PARK

BRAKE

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 or

repaired and is functioning properly. Refer to

Section “Blade Brake Adjustment” or contact your

SNAPPER dealer for assistance.

2.3.4. PARKING BRAKE

1. Manually position joystick in the neutral position.

2. Engage parking brake by pushing button at the top

of lever and then pulling the parking brake lever

slowly back to the “ON” position.

3. Release parking brake by pushing button at the

top of lever and moving brake lever forward to the

“OFF” position. See Figure. 2.7.

FIGURE 2.7

3. Release the parking brake. See Figure 2.7.

4. Move joystick carefully in the desired direction to

propel the machine. A small movement of the joystick

can cause the machine to move instantly. Move

joystick carefully and slowly.

WARNING

2.3 STOPPING

DO NOT park machine on slopes.

2.3.1. ENGINE

1. Stop engine by turning key to the “STOP”

position. See Figure 2.8.

WARNING

DO NOT leave machine with engine running. STOP

engine. STOP blades. Engage park brake. Remove

key. DO NOT park machine on slopes.

2.3.2. WHEEL DRIVE

1. Stop motion of riding mower by moving joystick

to neutral (N) position. See Figure 2.8.

2.3.3. MOWER BLADE

1. Push the blade switch in to “OFF” position to

disengage or stop the mower blades. See Figure 2.7.

Section 2 - OPERATING INSTRUCTIONS

2.3.5. CUTTING HEIGHT ADJUSTMENT

This machine has seven different cutting height

positions. IMPORTANT: When positioning the cutting

deck into a higher cutting position, pull up on the deck

lift handle only, it is not necessary to pull up on the

release lever at the same time. Use the release lever

when moving deck cutting height to a lower cutting

position.

2.4 SAFETY INTERLOCK SYSTEM CHECKS

This machine is equipped with an electrical safety

interlock system that is provided for the safety of the

operator and others. All safety devices must be in place

and functioning properly before operating the machine.

Perform the following interlock system checks

periodically during the operating season. Contact your

authorized Snapper dealer if you have questions.

1. Grasp both handles together to disengage

latch.

2. Raise or lower handles to desired height.

3. Release lower handle to engage latch.

See Figure 2.9.

WARNING

DO NOT operate machine if any safety interlock or

safety device is not in place and functioning properly.

DO NOT attempt to defeat, modify or remove any safety

device.

DECK LIFT

HANDLE

ENGINE MUST NOT START IF:

1) Park Brake not in engaged position, OR,

2) Blade Switch in the “ON” blades engaged

position.

ENGINE SHOULD START IF:

1) Blade Switch in the “OFF” blades disengaged

position AND,

2) Park Brake in engaged position.

ENGINE MUST BEGIN TO STOP IF:

1) Operator rises off of seat with Blade Switch in

“ON” blades engaged position OR,

2) Operator rises off of seat with Park Brake not in

engaged position.

RELEASE

LEVER

IMPORTANT: Engine will continue to run if Operator

becomes seated prior to engine coming to a

complete stop. To restart the blades, first move the

Blade Switch to the “OFF” position and then back to

the “ON” position. After coming to a complete stop,

the blade switch must be moved to the “OFF”

position and the Park Brake engaged before engine

can be restarted. Engine and blades must come to a

complete stop within 5 seconds after the operator

rises off the seat or the blade switch is moved to the

“OFF” position.

CONNECTING BAR OMITTED

IN THIS VIEW FOR CLARITY

DETENT

PLATE

FIGURE 2.9

Section 3 - MAINTENANCE

3.2.2. CHECK MOWER BLADE

1. Close vent on fuel cap and make sure cap is

tight.

2. Apply parking brake.

3. Turn key to “STOP” position and remove key from

ignition switch.

3.1 INTRODUCTION

To retain the quality of the SCRAMBLER, use genuine

SNAPPER replacement parts only. Contact a local

SNAPPER dealer for parts and service assistance. For

the correct part or information for a particular mower,

always mention the model and serial number.

3.2 SERVICE - AFTER FIRST 5 HOURS

WARNING

Wear heavy leather gloves when handling or working

around cutting blades. Blades are extremely sharp and

can cause severe injury.

WARNING

DO NOT attempt any adjustments, maintenance,

service or repairs with the engine running. STOP

engine. STOP blade. Engage parking brake. Remove

key. Remove spark plug wire from spark plug and

secure away from plug. Engine and components are

HOT. Avoid serious burns, allow all parts to cool

before working on machine. Fuel Filler Cap and vent

must be closed securely to prevent fuel spillage.

4. Raise cutting deck to highest setting.

5. With a floor jack, carefully raise front of machine to

gain easier access to under deck. Block machine

securely.

6. Check torque of blade mounting bolts. Torque to:

33” Deck - 30 to 40 ft. lbs.

38” Deck - 80 to 90 ft. lbs. See Figure 3.2.

7. Check blade for sharpness, wear and damage.

Refer to Section “BLADE WEAR LIMITS”.

3.2.1. CHANGE ENGINE OIL

1. Place bricks or wooden blocks under the front

wheels to lower rear of engine.

2. Place a 4 quart minimum capacity container

under the end of the oil drain.

TORQUE BLADE MOUNTING

BOLTS TO 30 TO 40 FT. LBS.

3. Loosen or remove oil fill cap on engine.

4. Install the drain hose (Supplied in hardware bag)

onto drain plug nipple and place hose into drain

container.

5. Rotate drain plug counter clockwise and pull out

to open and allow oil to drain out. See Figure 3.1.

SINGLE BLADE DECK

TORQUE BLADE MOUNTING

BOLTS TO 80 TO 90 FT. LBS.

INSTALL HOSE

ONTO OIL DRAIN

NIPPLE

ROTATE 1/4 TURN

COUNTERCLOCKWISE

AND PULL OUT TO DRAIN

ENGINE OIL

TWIN BLADE DECK

FIGURE 3.2

OIL DRAIN

FIGURE 3.1

8. Check

blade

for

straightness.

See

ADJUSTMENTS AND REPAIR – CHECKING

MOWER BLADE STRAIGHTNESS

6. After all the oil has drained, close the drain by

pushing in and rotating clockwise to close. Wipe up

any oil that may have spilled. Dispose of drained oil

properly. See Figure 3.1.

7. Change oil filter at every oil change. Refer to your

engine owner’s manual for service instructions.

8. Fill engine crankcase with new oil. Refer to your

engine owner’s manual for oil specifications.

WARNING

DO NOT use a cutting blade that shows signs of

excessive wear or damage. Refer to Section

“MOWER BLADE REPLACEMENT” for proper blade

inspection and service procedures.

Section 3 - MAINTENANCE

3.2.4. CHECK TRANSAXLE DRIVE BELTS

1. Checking Transaxle Belt Tension

WARNING

DO NOT attempt any adjustments, maintenance,

service or repairs with the engine running. Stop

engine. Stop blade. Engage parking brake. Remove

key. Remove spark plug wire from spark plug and

secure away from plug. Engine and components are

HOT. Avoid serious burns, allow all parts to cool

before working on machine. Fuel Filler Cap and Vent

must be closed securely to prevent fuel spillage.

The transaxle drive belts require no adjustment.

If belts are frayed, slit, severed or belt strands

exposed, replace belt before operating mower.

3.3 SERVICE - EVERY 25 OPERATING HOURS

3.3.1. ENGINE

1. Engine Cooling System

The engine cooling system consists of an engine

shroud and engine fins. These should be kept

clean and free of debris as needed or cleaned.

2. Engine Oil

Change engine oil. Refer to Section “CHANGE

ENGINE OIL”. Refer to engine owner’s manual for

oil specifications.

3.2.3. CHECK MOWER DRIVE BELT

1. Footrest/Floor pan Removal

a. Pull deck lift handle to highest cutting position.

See Figure 3.3.

b. Remove the two knobs that secure the rear of the

floor pan.

3. Oil Filter

Change engine oil filter. Refer to engine owner’s

manual for filter specifications.

4. Air Filter

c. Remove two bolts at front bottom edge of foot

rest. Lift up on footrest and slide rear of floor pan out

from under deck lift mechanism.

Refer to engine owner’s manual for service

instructions.

5. Air Filter

1. Refer to engine owner’s manual for service

instructions. Change air filter. Pull up and rotate the

air cleaner latch to remove cleaner cover. See

Figure 3.4.

MOVE DECK LIFT HANDLE TO HIGH CUT

REMOVE TWO KNOBS AT REAR OF FLOOR PAN

REMOVE TWO BOLTS FROM BOTTOM OF FOOTREST

IMPORTANT: When cover is removed, you are

viewing the carburetor side of the air filter, which

will appear clean. Remove filter and pre-cleaner for

inspection.

AIR CLEANER

LATCH

FIGURE 3.3

2. Checking Mower Belt Tension

The idler and spring provide proper belt tension

and require no adjustment. If belt is frayed, slit,

severed or belt strands exposed, replace belt

before operating mower.

AIR CLEANER

COVER

FIGURE 3.4

(Continued On Next Page)

Section 3 - MAINTENANCE

4. Mower Deck Levelness

WARNING

Check mower deck for proper levelness. Adjust as

required. Refer to Section “MOWER DECK

ADJUSTMENT – LEVELNESS”.

DO NOT attempt any adjustments, maintenance,

service or repairs with the engine running. Stop

engine. Stop blade. Engage parking brake. Remove

key. Remove spark plug wire from spark plug and

secure away from plug. Engine and components are

HOT. Avoid serious burns, allow all parts to cool

before working on machine. Fuel Filler Cap and Vent

must be closed securely to prevent fuel spillage.

5. Cleaning Mower Deck

a. Close vent on fuel cap and make sure cap is

tight. See Figure 2.3.

b. Remove key from ignition switch. Engage

parking brake.

c. Remove spark plug wire(s) and secure away

from spark plug(s).

d. Raise cutting deck to highest setting.

e. With a floor jack, carefully raise up front of

machine to gain easier access to under deck.

Block machine securely.

3.3 SERVICE - EVERY 25 OPERATING HOURS

(Continued From Previous Page)

3.3.1. CHECK ENGINE

5. Air Filter

2. Refer to engine owner's manual for cleaning and

service instructions. Remove and clean engine air

pre-cleaner. Remove and replace engine air

cleaner. See Figure 3.5. Install pre-cleaner and air

cleaner per engine owner’s manual.

WARNING

Lifting or lowering the machine onto or down from

blocks manually can cause severe injury. Always

use floor jack when raising machine.

AIR PRE-

CLEANER

f. Clean underside of mower deck, removing all

accumulation of grass clippings and debris.

g. Clean top of deck, removing all grass

clippings and debris.

6. Mower Blade Spindle - Lubrication

a. Lubricate spindle bearings with three shots of

general purpose grease from grease gun. See

Figure 3.6.

UNDERSIDE VIEW OF 33” DECK

LUBRICATE

SPINDLE BEARINGS

AIR CLEANER

FIGURE 3.5

3. Reinstall air cleaner cover. Insert tabs located at

the bottom of the cover into corresponding slots in

engine cover. Position cover and engage latch over

cover and rotate and push down to lock.

3.3.2. MOWER COMPONENTS

1. Blade Brake

Check blade stop time. Blades must stop rotating in

5 seconds or less after blades have been turned

off. Refer to Section “Blade Brake Adjustment”.

2. Mower Drive Belt

Check belt for proper tension. No adjustment

required. Replace belt as needed.

3. Mower Blade

FIGURE 3.6

Check blade for sharpness, wear, damage, and

torque. Refer to Section “MOWER BLADE

REPLACEMENT”.

Section 3 - MAINTENANCE

WARNING

DO NOT attempt any adjustments, maintenance,

service or repairs with the engine running. Stop

engine. Stop blade. Engage parking brake. Remove

key. Remove spark plug wire from spark plug and

secure away from plug. Engine and components are

HOT. Avoid serious burns, allow all parts to cool

before working on machine. Fuel Filler Cap and Vent

must be closed securely to prevent fuel spillage.

FRONT STRUCTURE

ACCESS HOLE

LUBRICATE

PIVOT

SHAFTS

7. Mower Deck Linkage - Lubrication

Lubricate all mower deck linkage pivot points with a

light coat of motor oil.

FRONT COVER

REMOVED

3.3.3. SCRAMBLER - LUBRICATION

1. Front Wheel Bearings

Lubricate front wheel bearings with five shots of

general purpose grease from grease gun. See

Figure 3.7.

FIGURE 3.8

3. Parking Brake Pivot Bushings

a. Remove key from ignition switch. Engage

parking brake.

b. Remove spark plug wire(s) and secure away

from spark plug(s).

c. Drop cutting deck to lowest setting.

d. Lubricate both pivot bushings with three shots

general purpose grease from grease gun. See

Figure 3.9

SCRAMBLER SHOWN WITH

DECK REMOVED. DECK

REMOVAL NOT NECESSARY

FOR LUBRICATION.

LUBRICATE

FRONT WHEEL

BEARINGS

LUBRICATE BOTH PIVOT

BUSHINGS

FIGURE 3.7

2. Front Caster Wheel Pivot Shaft

The footrest/floor pan assembly will have to be

removed to lubricate the pivot shaft. The access hole

is at the rear of the front structure underneath the

footrest.

a. The pivot shaft grease fitting can be accessed

through a hole at the rear of the front structure.

Lubricate pivot shaft with three shots of general

purpose grease from grease gun. See Figure 3.8.

FIGURE 3.9

Section 3 - MAINTENANCE

WARNING

DO NOT attempt any adjustments, maintenance,

service or repairs with the engine running. Stop

engine. Stop blade. Engage parking brake. Remove

key. Remove spark plug wire from spark plug and

secure away from plug. Engine and components are

HOT. Avoid serious burns, allow all parts to cool

before working on machine. Fuel Filler Cap and Vent

must be closed securely to prevent fuel spillage.

NEW FUEL FILTER

PART NO. 1-4359

3.4 SERVICE - ANNUALLY

Perform all maintenance as described in the

maintenance schedule.

HOSE CLAMPS

3.4.1. Engine

Service engine according to engine owner’s manual.

FIGURE 3.10

3.4.2. Air Filter

Refer to engine owner’s manual for service

instructions.

3.5 STORAGE (OUT OF SEASON)

Perform the following procedures to insure the

SCRAMBLER will operate properly when taken out of

storage.

3.4.3. Oil Filter

Refer to engine owner’s manual for service

instructions.

1. Thoroughly clean the SCRAMBLER by removing

all grass clippings and debris.

2. Perform maintenance and lubrication as

described in the previous sections.

3. Drain fuel from fuel tank into an approved

container outdoors away from all sources of

ignition.

3.4.4. Engine Oil

Refer to engine owner’s manual for service

instructions.

4. Start engine and allow it to run until engine runs

out of fuel. This allows the carburetor and fuel

system to remain clean during storage.

5. Remove battery. Refer to Section “BATTERY

REMOVAL AND STORAGE”.

3.4.5. Transaxle

IMPORTANT: DO NOT try to open reservoir cap at

any time. The transaxle is maintenance free. The

transaxle does not require any fluid or any

service. If there is any problem: leakage,

malfunction or etc. return the SCRAMBLER

immediately to the nearest authorized Snapper

dealer for service.

6. Close vent on fuel filler cap and fuel valve in fuel

line. Remove key.

3.4.6. Fuel Filter

Service fuel filter as instructed below. Close fuel

valve in fuel line. Run engine until engine runs out

of fuel. Turn key to “OFF” position. Engine MUST

be stopped and MUST be cold before removing

filter. Perform filter change only when fuel line is

empty.

1. Remove hose clamps from fuel filter.

2. Remove fuel lines from filter. Discard filter.

3. Install new fuel filter. Reinstall hose clamps. See

Figure 3.10.

Section 4 - ADJUSTMENTS & REPAIR

WARNING

DO NOT attempt any adjustments, maintenance,

service or repairs with the engine running. Stop

engine. Stop blade. Engage parking brake. Remove

key. Remove spark plug wire from spark plug and

secure away from plug. Engine and components are

HOT. Avoid serious burns, allow all parts to cool

before working on machine. Fuel Filler Cap and Vent

must be closed securely to prevent fuel spillage.

LOWER VIEW

FRONT OF MOWER

4.1 JOYSTICK ADJUSTMENTS

4.1.1. Neutral Position Adjustments

IS SHOWN

FROM THIS

ANGLE

The joystick controls the movement and stopping of the

unit. Move the joystick to the center or neutral position to

stop mower. IMPORTANT: Always return the joystick

with hand assistance to the neutral position. If mower

does not come to a complete stop or has any movement

when joystick is moved to the neutral position,

adjustment must be made. It is recommended that these

adjustments be made by an authorized SNAPPER

dealer. But, adjust joystick cables as follows after

removing fenders:

IF MOWER IS

TRACKING LEFT -

PERFORM ADJUSTMENT

PROCEDURE ON THE

LEFT SIDE CABLE.

RIGHT SIDE

CABLE

ROTATE TOP NUT

1/8” INCREMENTS

CLOCKWISE

1. If mower tracks to the right, loosen bottom nut

first on the right cable. Turn top nut clockwise in a

1/8 increment then retighten lower nut to secure

cable. Check tracking of mower. Repeat this

adjustment if necessary. See Figure 4.1.

LOOSEN BOTTOM

NUT FIRST

IF MOWER IS TRACKING TO

THE RIGHT -

ADJUST RIGHT SIDE CABLE.

2. If mower tracks to the left, loosen bottom nut first

on the left cable. Turn top nut clockwise in a 1/8

increment then retighten lower nut to secure cable.

Check tracking of mower. Repeat this adjustment if

necessary. See Figure 4.1.

FIGURE 4.1

4.1.2. Forward Speed Adjustments

The joystick is equipped with a forward speed governor

plate (see Figure 4.1a). Moving the plate in or out

adjusts the maximum forward speed the unit can

achieve. To adjust the plate:

TORX SCREWS

UNDER BOOT

1. Loosen the two front torx screws on the joystick

control.

2. To increase maximum forward speed, slide the

plate further out from the joystick. To decrease

maximum forward speed, slide the plate further in

toward the joystick

3. Be sure to retighten torx screws after satisfactory

speed is achieved.

DECREASE MAX

FORWARD SPEED

4.2 ENGINE ADJUSTMENTS & REPAIR

Refer to the engine owner’s manual for those adjustments

and/or repairs that can be made by the owner.

INCREASE MAX

FORWARD SPEED

GOVERNOR PLATE

FIGURE 4.1a

4.3 MOWER DECK & COMPONENT ADJUSTMENTS

The following mower deck and component adjustments

nd 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.

Section 4 - ADJUSTMENTS & REPAIR

4.3.2. MOWER DRIVE BELT REPLACEMENT

Inspect mower drive belt. Replace belt if signs of

excessive wear and/or damage are present.

WARNING

DO NOT attempt any adjustments, maintenance,

service or repairs with the engine running. Stop

engine. Stop blade. Engage parking brake. Remove

key. Remove spark plug wire from spark plug and

secure away from plug. Engine and components are

HOT. Avoid serious burns, allow all parts to cool

before working on machine. Fuel Filler Cap and Vent

must be closed securely to prevent fuel spillage.

4.3.3. BELT REMOVAL

1. Remove footrest/floor pan assembly. Refer to

Section “FOOTREST REMOVAL”.

2. Remove old belt.

4.3.4. BELT REPLACEMENT

1. Route new belt around electric clutch pulley.

See Figure 4.3.

4.3.1. MOWER DRIVE BELT ADJUSTMENT

The 33” and 38” mower deck drive belts do not

require any adjustment. If the belt does not drive

blade properly, replace belt as needed. Refer to

Section “BELT REPLACEMENT”. Belt routing

shown on this page. See Figure 4.2.

MOWER

BELT

ROUTE MOWER BELT AROUND

ELECTRIC CLUTCH PULLEY

SPINDLE PULLEY

ELECTRIC

CLUTCH

VIEW SHOWN FROM UNDERNEATH WITH

DECK REMOVED, DECK REMOVAL NOT

NECESSARY FOR MOWER BELT

REPLACEMENT

IDLER PULLEY

33” DECK

FIGURE 4.3

SPINDLE PULLEY

(Continued On Next Page)

IDLER

PULLEY

STATIONARY

PULLEY

ELECTRIC

CLUTCH

PULLEY

38” DECK

FIGURE 4.2

Section 4 - ADJUSTMENTS & REPAIR

4.3.5. BLADE BRAKE ADJUSTMENT

WARNING

The SNAPPER SCRAMBLER is equipped with an

electric clutch/brake that should stop blade rotation

in 5 seconds or less after being turned off. If blades

DO NOT attempt any adjustments, maintenance,

service or repairs with the engine running. Stop

engine. Stop blade. Engage parking brake. Remove

key. Remove spark plug wire from spark plug and

secure away from plug. Engine and components are

HOT. Avoid serious burns, allow all parts to cool

before working on machine. Fuel Filler Cap and Vent

must be closed securely to prevent fuel spillage.

continue to rotate longer than

seconds,

adjustment or replacement is required. When

properly adjusted, a .010” to .012” feeler gauge will

fit thru the three inspection slots located on the side

of the clutch as shown. See Figure 4.5. Excessive

clearance can adversely affect the function of the

clutch and produce blade stop times over 5

seconds. To adjust, turn the three adjusting nuts

clockwise to reduce clearance. The clearance at

each of the three slots must be set the same.

4.3.4. BELT REPLACEMENT

(Continued From Previous)

2. Route belt around stationary idler.

3. Remove spring that is connected to idler pulley.

Loosen nut and bolt that secures idler pulley to idler

arm. Route belt between belt guide and idler pulley.

4. Route belt onto spindle pulley. Make sure belt is

inside spindle pulley belt guide.

5. Reinstall idler pulley spring. See Figure 4.4.

NOTE: The idler belt guide should be positioned so

the locator tab fits into the corresponding hole

found on the idler arm. See Figure 4.4. Tighten bolt

securely.

ADJUSTING

NUT (3)

INSPECTION

SLOT (3)

6. Reinstall footrest/floor pan assembly.

BELT REPLACEMENTS

Engine to Hydro Pumps (All Models)

Engine to Electric Clutch (All Models)

Electric Clutch to Mower (33” Decks)

Electric Clutch to Mower (38” Decks)

Part No. 4-2773

Part No. 2-9117

Part No. 3-5389

Part No. 2-9308

IDLER ARM AND BELT

GUIDE DETAIL

.010” TO .012”

FEELER GAUGE

FIGURE 4.5

TAB MUST GO

INTO HOLE

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 or

repaired and is functioning properly. Contact your

SNAPPER dealer for assistance.

LOCATOR

TAB

MOWER

BELT

GUIDE

4.3.6. CHECKING MOWER BLADE

STRAIGHTNESS

The straightness of the mower blade(s) is essential

for smooth, even mowing. Check blade

straightness as follows. NOTE: Follow Steps 1

thru 4 for all deck sizes.

IDLER

PULLEY

1. Close vent on fuel cap and make sure cap is

tight. See Figure 2.3.

2. Remove key from ignition switch.

3. Remove spark plug wire(s) and secure away

from spark plug(s).

4. Raise cutting deck to highest setting. With a floor

jack, raise up front of machine to gain easier access

to under deck. Block machine securely.

(Continued On Next Page)

IDLER

ARM

BELT

GUIDE

STATIONARY

PULLEY

FIGURE 4.4

Section 4 - ADJUSTMENTS & REPAIR

WARNING

(Checking The 38” Deck Blades)

NOTE: Follow Steps 1 thru 4 for all deck sizes.

11. Mark each blade’s tips as “A” and “B”. See

Figure 4.7.

12. Rotate both blades until blade cutting edges

“A” are at their closest point.

DO NOT attempt any adjustments, maintenance,

service or repairs with the engine running. Stop

engine. Stop blade. Engage parking brake. Remove

key. Remove spark plug wire from spark plug and

secure away from plug. Engine and components are

HOT. Avoid serious burns, allow all parts to cool

before working on machine. Fuel Filler Cap and Vent

must be closed securely to prevent fuel spillage.

13. Measure the distance between both “A” blade

cutting edges and deck. See Figure 4.7.

4.3.6. CHECKING MOWER BLADE

STRAIGHTNESS

(Continued From Previous Page)

(Checking the 33” Deck Blade)

5. Select a point on the deck and mark for

reference.

6. Mark blade tips as “A” and “B”.

7. Rotate blade until blade tip “A” is at deck

reference mark.

8. Measure the distance between deck lip and

blade tip. NOTE: On 33” decks, the measurement

between the blade tip and deck lip should be 3/8”.

See Figure 4.6.

9. Repeat step 8 with blade tip “B”.

10. If measurement between blade tips and deck

are different and there is more than 1/16” difference

between blade tip measurements, blade is bent and

must be replaced with new blade.

MARK BLADE

TIPS “A” & “B”

FIGURE 4.7

14. Rotate blade until blade cutting edges “B” are

together. See Figure 4.8.

15. If the measurements differ by more than 1/16”

between either set of blade tips, one or both blades

are bent and must be replaced with new blades.

BLADE TIP

MEASURE FROM BLADE

TIPS TO DECK

3/8”

DECK LIP

X + 1/16”

MARK

BLADE

ENDS

3/8” FROM BLADE

TIP TO OUTER DECK

LIP

FIGURE 4.8

FIGURE 4.6

Section 4 - ADJUSTMENTS & REPAIR

6. Loosen the shoulder bolt that retains the

eccentric.

WARNING

DO NOT attempt any adjustments, maintenance,

service or repairs with the engine running. Stop

engine. Stop blade. Engage parking brake. Remove

key. Remove spark plug wire from spark plug and

secure away from plug. Engine and components are

HOT. Avoid serious burns, allow all parts to cool

before working on machine. Fuel Filler Cap and Vent

must be closed securely to prevent fuel spillage.

7. Turn eccentric “UP” or “DOWN” as required

until blade tips are within 1/8” of the same

distance from the floor. See Figure 4.10.

8. Tighten shoulder bolt loosened in Step “f”.

9. Readjust rear hanger chain pivots to align

with holes in support brackets.

10. Reconnect hanger chains, remove angle

iron, pipe, etc. and recheck side to side level.

Adjust either chain as needed to result in blade

tips being within 1/8” of the same distance from

the floor.

4.3.7. MOWER DECK ADJUSTMENT (LEVELNESS)

Side-To-Side (33” & 38” Decks)

Before making deck leveling adjustments, check

the tire pressure. Check tires and add or release air

as needed to bring pressure to 12 P.S.I. in front and

12 P.S.I. in rear tires. If tires are properly inflated

and mowing is still uneven, adjust side-to-side deck

levelness as follows:

11. Proceed to check front to rear deck pitch.

1. Place SCRAMBLER on a smooth level

surface.

2. Turn engine off and remove key, remove

spark plug wire(s) from spark plug(s) and secure

wire(s) away from plug(s).

38” DECK SHOWN

3. Place a piece of angle iron, pipe, or similar

object under center of deck at the rear.

4. Remove rear hanger chains and allow center,

rear of deck to rest on angle iron.

5. Measure the distance from blade tips to floor. If

the measurement is within 1/8” from side-to-side,

the deck levelness is satisfactory. If the difference

from side-to-side is greater than 1/8”, continue to

the next page for adjustment. See Figure 4.9.

LOOSEN

SHOULDER

BOLT

DOWN

ECCENTRIC

FRONT OR REAR VIEW OF DECK

TWIN BLADE DECK

FIGURE 4.10

X-1/8”

SIDE

ANGLE

IRON

SINGLE BLADE DECK

SIDE

X-1/8”

ANGLE IRON

FIGURE 4.9

Section 4 - ADJUSTMENTS & REPAIR

If the rear blade tip is lower or is more than 1/4”

higher than the front, proceed with adjustment.

WARNING

DO NOT attempt any adjustments, maintenance,

service or repairs with the engine running. Stop

engine. Stop blade. Engage parking brake. Remove

key. Remove spark plug wire from spark plug and

secure away from plug. Engine and components are

HOT. Avoid serious burns, allow all parts to cool

before working on machine. Fuel Filler Cap and Vent

must be closed securely to prevent fuel spillage.

1. Remove rear hanger chains.

2. Turn each hanger pivot the same number of

rotations on the eye-bolt to raise or lower the

rear of the deck. See Figure 4.12.

3. Reinstall rear hanger chains and measure

blade tips again.

4. Repeat steps “a” through “c” until proper

levelness is obtained.

4.3.8. MOWER DECK ADJUSTMENT (LEVELNESS)

Front to Rear Deck Pitch (33” Deck)

With the SCRAMBLER on a smooth, level surface,

rotate blade until blade tips are at front and rear of

deck. Measure the distance from blade tips to

floor. The distance should be the same, or the rear

1/4” lower than the front. If the rear blade tip is

higher or is more than 1/4” lower than the front,

proceed with adjustment.

REAR

FRONT

ROTATE HANGER PIVOT:

1. Remove rear hanger chains.

UP TO RAISE DECK OR DOWN

TO LOWER DECK

2. Turn each hanger pivot the same number of

rotations on the eye-bolt to raise or lower the

rear of the deck. See Figure 4.11.

3. Reinstall rear hanger chains and measure

blade tips again.

4. Repeat steps “a” through “c” until proper

levelness is obtained.

REAR

FRONT

FIGURE 4.12

SIDE VIEW OF DECK

4.3.9. MOWER DECK TIMING ROD

ROTATE HANGER

PIVOT UP TO RAISE

DECK OR DOWN TO

LOWER DECK

The mower deck timing rod is pre-adjusted at the

factory. It is set to maintain the deck in the same

attitude through all heights of cut. If the timing rod

requires adjustment, contact an authorized

SNAPPER dealer for service. See Figure 4.13.

ADJUSTING

NUT

DO NOT ADJUST

REAR LIFT ARM

TIMING

ROD

FIGURE 4.11

Front to Rear Deck Pitch (38” Decks)

38” DECK SHOWN

FIGURE 4.13

With the SCRAMBLER on a smooth, level surface,

rotate blades until blade tips are at front and rear of

deck. Measure the distance from blade tips to floor.

The distance should be the same, or the rear 1/4”

higher than the front.

Section 4 - ADJUSTMENTS & REPAIR

4.4.2. BLADE SHARPENING

1. Close vent in fuel cap and make sure cap is

tight. See Figure 2.3.

2. Remove key from ignition switch. Engage parking

brake.

3. Remove spark plug wire(s) and secure away from

spark plug(s).

4. Raise cutting deck to highest setting. With a floor

jack, raise up front of machine to gain easier access

to under deck. Block machine securely.

5. Remove blade(s). See Figure 4.16.

6. Inspect condition of blade. See Figure 4.14.

7. If blade is in good condition, sharpen at 22 to 28

degrees. DO NOT sharpen beyond existing cutting

edge. See Figure 4.17.

WARNING

DO NOT attempt any adjustments, maintenance,

service or repairs with the engine running. Stop

engine. Stop blade. Engage parking brake. Remove

key. Remove spark plug wire from spark plug and

secure away from plug. Engine and components are

HOT. Avoid serious burns, allow all parts to cool

before working on machine. Fuel Filler Cap and Vent

must be closed securely to prevent fuel spillage.

Wear heavy leather gloves when handling or working

around cutting blades. Blades are extremely sharp and

can cause severe injury. DO NOT use a cutting blade

that shows signs of excessive wear or damage.

8. Check blade balance after sharpening. If

necessary, correct blade balance by grinding the

heavy end of blade.

9. Reinstall blade. See Figure 4.16. Torque blade

mounting bolts to recommended range of:

33” Deck - 30 to 40 ft. lbs.

4.3.10. WHEEL BRAKE ADJUSTMENT

Adjust the wheel brake if wheels turn when parking

brake is engaged. Adjust the wheel brake by turning

wheel brake adjusting nut clockwise to increase

braking action or counter clockwise to decrease

braking action. See Figure 4.14.

38” Deck - 80 to 90 ft. lbs.

UNDERSIDE VIEW OF MACHINE

ADJUST

COUNTER-

CLOCKWISE TO

DECREASE

BRAKE

33” DECK

ADJUST

CLOCKWISE

TO INCREASE

BRAKE

ELECTRIC

CLUTCH

WHEEL BRAKE

ROD

FIGURE 4.14

38” DECK

4.4 MOWER BLADE REPLACEMENT

4.4.1. BLADE WEAR LIMITS

1. Inspect blade frequently for signs of excessive

wear or damage. See Figure 4.15.

NEW BLADE

FIGURE 4.16

DO NOT SHARPEN

BEYOND ORIGINAL

CUTTING EDGE

22º TO 28º

WEAR LIMIT

(NOTCH STARTS)

BLADE TIP

DANGEROUS CONDITION!

DO NOT USE ON MOWER!

REPLACE WITH NEW BLADE.

ORIGINAL CUTTING EDGE

FIGURE 4.15

FIGURE 4.17

Section 4 - ADJUSTMENTS & REPAIR

5. Slow charge battery at 1 amp for 10 hours.

WARNING

6. If battery will not accept charge or is partially

charged after 10 hours of charging at 1 amp,

replace with new battery, Part Number 6-0753.

DO NOT attempt any adjustments, maintenance,

service or repairs with the engine running. Stop

engine. Stop blade. Engage parking brake. Remove

key. Remove spark plug wire from spark plug and

secure away from plug. Engine and components are

HOT. Avoid serious burns, allow all parts to cool

before working on machine. Fuel Filler Cap and Vent

must be closed securely to prevent fuel spillage. DO

NOT attempt to service or charge the battery while it is

installed on the SCRAMBLER. 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 as shown.

BLACK

NEGATIVE (-)

CABLE

RED

POSITIVE (+)

CABLE

4.4 MOWER BLADE REPLACEMENT

4.4.3. BLADE REPLACEMENT

1. Remove blade(s). See Figure 4.17. Replace

blade(s) if it shows signs of excessive wear or

damage. See chart below for replacement

BLADE REPLACEMENT CHART

FIGURE 4.18

33” Blade

1-9523

38” Blades

2-4466 (Requires Two)

WARNING

4.5 BATTERY

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. DO NOT

attempt to charge battery while installed on the

SCRAMBLER. 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 the battery cables can

result.

4.5.1. BATTERY REMOVAL

1. Tilt seat up to gain access to battery.

2. Observe and note cable positions on battery.

See Figure 4.18.

3. Disconnect cables from battery terminals,

disconnecting BLACK (Negative) cable first.

Disconnect RED (Positive) battery cable. Slide

battery from battery cradle.

4. Retain mounting bolts and nuts for future use.

4.5.2. BATTERY INSTALLATION

1. Slide battery into battery cradle.

2. Connect cables to battery terminals. Connect

RED (Positive) cable first. Connect BLACK

(Negative) cable. See Figure 4.18.

3. Place the positive (+) terminal insulator over

positive terminal and cable. See Figure 4.18.

4.5.3. BATTERY SERVICE

1. Remove battery. Refer to Section “BATTERY

REMOVAL”.

2. Place battery in a well-ventilated area on a level

surface.

3. Using distilled water, refill cells as required to

cover cell plates of which can also be visualized

through the plastic battery case.

4.5.4. BATTERY STORAGE

When SCRAMBLER is to be stored 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

SCRAMBLER on a wood surface. DO NOT STORE

BATTERY ON A CONCRETE SURFACE.

4. With cell caps removed, connect battery charger

to battery terminals. Red to positive (+) terminal

and black to negative (-) terminal.

Section 4 - ADJUSTMENTS & REPAIR

IMPORTANT: DO NOT place anything in new 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 to proper level.

7. Reinstall cell caps.

8. Install battery into power unit. Connect over flow

tube.

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

Battery Condition chart below shows the charge

level as measured by syringe float hydrometer,

digital voltmeter and five ball hydrometer.

WARNING

Shield the positive terminal with terminal cover

located on battery harness. This prevents metal from

touching the positive terminal, which could cause

sparks.

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. Filling battery with electrolyte will bring the

battery to 80% charged state.

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 charge

battery while installed on the SCRAMBLER. DO NOT

use “BOOST” chargers on the battery.

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

TROUBLESHOOTING

PROBABLE CAUSE

PROBLEM

CORRECTIVE ACTION

Starter Will Not Crank 1. Battery dead.

1. Service battery.

Engine

2. Blown fuse.

2. Replace fuse.

3. Electrical connections loose or corroded.

4. Defective ignition switch.

3. Clean and check connections for good contact.

4. Contact authorized SNAPPER dealer.

5. Move blade engagement switch to “OFF”.

6. Engage park brake.

5. Blade engagement switch in the “ON” position.

6. Park brake not engaged.

7. Faulty parking brake, blade or ignition switch.

8. Faulty engine starter.

7. Contact authorized SNAPPER dealer.

8. Replace engine starter.

9. Faulty starter solenoid.

9. Replace starter solenoid.

Engine Will Crank But 1. Fuel tank empty or fuel shut-off valve closed.

1. Fill fuel tank with fresh fuel & open fuel valve.

2. Move choke control to “CHOKE” position.

3. Place spark plug wire onto spark plug.

4. Service battery.

Not Start

2. Engine needs choking.

3. Spark plug wire disconnected.

4. Battery weak or dead.

5. Faulty parking brake, blade or ignition switch.

5. Contact authorized SNAPPER dealer.

1. Move blade engagement switch to “OFF”.

2. Engage park brake.

Engine Will Not Start 1. Blade engagement switch in the “ON” position.

Using Recoil Starter 2. Park brake not engaged.

3. Fuel tank empty or fuel shut-off valve closed.

4. Engine needs choking.

3. Fill fuel tank with fresh fuel & open fuel valve.

4. Move choke control to “CHOKE” position.

5. Replace with new 20 AMP fuse.

6. Contact authorized SNAPPER dealer.

7. Contact authorized SNAPPER dealer.

1. Sit in operator’s seat.

5. Blown Fuse.

6. Faulty relay switch.

7. Faulty parking brake or blade switch.

Engine Stalls After

Running

1. Operator not in seat.

2. Choke control in the “CHOKE” position.

3. Fuel tank empty.

2. Move choke control to “OFF” position.

3. Fill with fuel to proper level.

4. Engine air pre-cleaner and or air cleaner dirty.

5. Spark plug defective or gap set improperly.

6. Fuel filter stopped up.

4. Clean free of all debris.

5. Service spark plug.

6. Replace fuel filter.

7. Water, debris or stale fuel in fuel system.

7. Drain and clean fuel system.

1. Lessen load.

Engine Loses Power 1. Excessive load on engine.

2. Engine air pre-cleaner or air cleaner dirty

2. Clean or replace filters.

3. Spark plug faulty.

3. Service spark plug.

4. Water, debris or stale fuel in fuel system.

4. Drain and clean fuel system.

5. Debris build up on engine cooling screen.

5. Clean all debris from engine cooling screen.

Engine Backfires When 1. Throttle control set too “FAST”.

Turned To “STOP”

1. Set throttle control to “SLOW” and allow engine

to idle. Then, turn key to “OFF”.

(Trouble Shooting Continued on Next Page)

TROUBLESHOOTING

PROBLEM

PROBABLE CAUSE

CORRECTIVE ACTION

Excessive Vibration 1. Damaged, out of balance or bent mower blades.

2. Loose blade components.

1. Service mower blade(s).

2. Service and tighten loose parts.

3. Replace air lifts. Tighten to proper torque.

4. Replace belt.

3. Loose or missing air lift (if equipped).

4. Lumpy or frayed belt.

5. Bent Idler, stationary or spindle pulley.

5. Replace pulley.

1. Joystick in the neutral “N” position.

2. Roll release lever is in “ROLL” position.

3. Low transmission hydraulic oil level.

1. Place joystick in desired speed position.

2. Move roll release lever to the engaged position.

3. Contact authorized SNAPPER dealer.

4. Move parking brake to disengaged position.

Rider Will Not Move Or

Loss Of Traction

4. Parking Brake engaged.

5. Traction drive belt requires replacement.

1. Blade engagement switch in the “OFF” position.

2. Clutch belt slipping.

5. Replace traction drive belt.

1. Move blade switch to the “ON” position.

2. Replace clutch belt.

Blade(s) Not Cutting

3. Mower belt slipping.

3. Replace mower belt.

4. Electric clutch not functioning.

1. Uneven tire pressure.

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.

2. Adjust cutting height.

3. Move engine speed control to “FAST” position.

4. Move joystick to a slower speed.

5. Adjust side to side level.

4. Forward speed too fast.

5. Terraced cut, side to side.

6. Excessive deck pitch, front to rear.

7. Cutting blade(s) dull or damaged.

8. Blade belt slipping.

6. Adjust front to rear pitch.

7. Sharpen cutting edges or replace blade(s).

8. Replace blade belt.

9. Check electric clutch.

9. Adjust to proper specifications.

10. Replace clutch belt.

10. Check clutch belt.

1. Engine speed too slow.

1. Move engine speed control to “FAST” position.

2. Move joystick to a slower speed.

3. Mow when grass is dry.

Poor Grass Discharge

2. Forward speed too fast.

3. Grass is wet.

4. Excessively worn or damaged blade(s).

5. Build up of grass clippings and debris under deck.

6. Improper blade(s) installed on deck.

7. Blade(s) installed improperly on deck.

1. Poor cable connections.

4. Service mower blade(s).

5. Clean deck.

6. Install proper SNAPPER blades.

7. Install blades properly.

1. Clean cables and battery terminals.

2. Replace with new battery.

Battery Will Not Charge

Oil Leaking

2. Bad battery cell(s).

3. Faulty alternator.

3. Contact engine manufacturer’s dealer.

1. Verify fittings and hose clamps are tight.

1. Leaking hose fittings, clamps or reservoir.

SERVICE SCHEDULE

ITEM

SERVICE PERFORMED

REF.

EACH

USE

HRS

100

HRS

EACH

SEASON

Check Oil Level

Page 7

Engine Oil

Initial Oil Change

Periodic Oil Change

Page 11

Page 12

Initial Oil Change

Periodic Oil Change

Clean Sponge Element

Clean or Replace

Replace

Engine Manual

& Page 11

Engine Manual

& Page 12

Oil Filter

Engine Manual

Air Pre-Cleaner

Air Cleaner

Spark Plug

Fuel Filter

X**

Engine Manual

Replace

Clean Shroud & Fins

Engine Manual

& Page 12

Engine Cooling

System

X**

Check Electrolyte

Charge Battery

Pages 23

Battery

Page 23

Pages 24

Page 7

Testing Battery

Check Pressures

Tires

Check For Wear And

Tension

Check For Wear, Damage Pages 22-23

& Replacement

Clean Debris

Accumulation

Clean Outside and

Underside

Page 17-18

Drive Belts

Mower Blades

Mower Deck

Page 13

Grease or Oil

Pages 13-14

Lubrication

Points

* 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

4.6. MAINTENANCE/REPLACEMENT PARTS

MAINTENANCE/REPLACEMENT PARTS

Cutter Deck Blade (33” Cutting Deck)

3-4168

4-2998

3-5389

2-9308

4-2773

2-9117

06182

Cutter Deck Blade (38” Cutting Deck) (2 Blades Required)

33” Cutter Deck Belt (Electric Clutch to Cutting Deck)

38” Cutter Deck Belt (Electric Clutch to Cutting Deck)

Wheel Drive Belt (Engine to Hydro Transaxle)

Mower Drive Belt (Engine to Electric Clutch)

Parts Manual for SCRAMBLER YZ 33” & 38” Series 6

2 YEAR LIMITED WARRANTY

For two (2) years from purchase date for the original purchaser's residential, non-commercial use, SNAPPER, through

any authorized SNAPPER dealer will replace, free of charge (except for taxes where applicable), any part or parts

found upon examination by the factory at McDonough, Georgia, to be defective in material or workmanship or both.

For ninety (90) days from purchase date for the original purchaser's commercial, rental, or other non-residential use,

SNAPPER, through any authorized SNAPPER dealer will replace, free of charge, any part or parts found upon

examination by the factory at McDonough, Georgia, to be defective in material or workmanship or both.

All transportation costs incurred by the purchaser in submitting material to an authorized SNAPPER dealer for

replacement under this warranty must be paid by the purchaser.

This warranty does not apply to certain transmissions, to engines and their components, and batteries, as these items

are warranted separately. This warranty does not apply to parts that have been damaged by accident, alteration,

abuse, improper lubrication, normal wear, or other cause beyond the control of SNAPPER. This warranty does not

cover any machine or component part that has been altered or modified changing safety, performance, or durability.

Batteries have a one (1) year warranty period with free replacement if required for one (1) year from the original

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 two (2)

years from purchase date for the original purchaser's residential or other non-commercial use, and ninety (90)

days from purchase for the original purchaser's commercial, rental or other non-residential use, and to the

extent permitted by law, any and all implied warranties are excluded. This is the exclusive remedy. Liabilities

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

PRIMARY MAINTENANCE

SNAPPER PRODUCT REGISTRATION FORM

IMPORTANT: KEEP THIS INFORMATION FOR YOUR PERSONAL RECORDS

(Complete the following information on your Snapper purchase)

Model Number_____________________________________________________________

Serial Number _____________________________________________________________

Date of Purchase ___________________________________________________________

Retailer____________________________________________________________________

Retailer’s Phone Number____________________________________________________

It is very important that you register your purchase with Snapper to ensure

warranty coverage. Please mail your product registration card to:

Snapper at P.O. Box 777, McDonough, Georgia 30253.

Or you may register on line at www.snapper.com.

You can contact us at our web site or if you would like to speak with a Customer

Service Representative. Call us at the Snapper Customer Relations Center. For

faster service please have your Serial Number and Model Number available.

Call the Snapper Customer Relations Center at 1-800-935-2967.

NOTES

___________________________________________________________________

NOTES

___________________________________________________________________

Safety Instructions & Operator’s Manual for

SCRAMBLER

HYDRO DRIVE

SERIES 6

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.

SNAPPER – A DIVISION OF SIMPLICITY MFG., INC.

MANUAL No. 5-0405 (I.R. 7/27/04)

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