Safety Instructions & Operator’s Manual for
SCRAMBLER
HYDRO DRIVE
SERIES 6
MODELS
YZ18336BVE
YZ18386BVE
MODEL NUMBER EXPLANATION
Y
Z
18
33
6
B V
E
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.
COPYRIGHT © 2004
SNAPPER – A DIVISION OF SIMPLICITY MFG., INC.
ALL RIGHTS RESERVED
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.
3
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.
4
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
5
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.
6
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
7
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.
8
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.
9
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
10
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.
11
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)
12
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”.
13
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
14
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.
15
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
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.
16
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
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
SPINDLE PULLEY
(Continued On Next Page)
IDLER
PULLEY
STATIONARY
PULLEY
ELECTRIC
CLUTCH
PULLEY
38” DECK
FIGURE 4.2
17
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
5
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
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
18
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
X + 1/16”
MARK
BLADE
ENDS
3/8” FROM BLADE
TIP TO OUTER DECK
LIP
FIGURE 4.8
FIGURE 4.6
19
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.
UP
LOOSEN
SHOULDER
BOLT
DOWN
ECCENTRIC
FRONT OR REAR VIEW OF DECK
TWIN BLADE DECK
FIGURE 4.10
X
X-1/8”
SIDE
SIDE
ANGLE
IRON
SINGLE BLADE DECK
SIDE
SIDE
X-1/8”
X
ANGLE IRON
FIGURE 4.9
20
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.
21
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
22
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.
23
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
24
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)
25
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.
26
SERVICE SCHEDULE
ITEM
SERVICE PERFORMED
REF.
EACH
USE
5
HRS
25
HRS
50
HRS
100
HRS
EACH
SEASON
Check Oil Level
Page 7
Engine Oil
X
Initial Oil Change
Periodic Oil Change
Page 11
Page 12
X
X
X*
Initial Oil Change
Periodic Oil Change
Clean Sponge Element
Clean or Replace
Replace
Engine Manual
& Page 11
Engine Manual
& Page 12
Oil Filter
X*
Engine Manual
Air Pre-Cleaner
Air Cleaner
Spark Plug
Fuel Filter
X**
X**
Engine Manual
Engine Manual
Engine Manual
X
X
Replace
Clean Shroud & Fins
Engine Manual
& Page 12
Engine Cooling
System
X**
Check Electrolyte
Charge Battery
Pages 23
Battery
X
X
X
X
Page 23
Pages 24
Page 7
Testing Battery
X
X
X
Check Pressures
Tires
X
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
Mower Deck
X
X
X
X
Page 13
Page 13
Grease or Oil
Pages 13-14
Lubrication
Points
X
X
* Change oil every 25 hours when operating under heavy load or high temperatures.
**Clean more often under dusty conditions or when air debris is present
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
27
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
28
PRIMARY MAINTENANCE
29
PRIMARY MAINTENANCE
30
PRIMARY MAINTENANCE
31
PRIMARY MAINTENANCE
32
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.
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.
33
NOTES
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35
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.
COPYRIGHT © 2004
SNAPPER – A DIVISION OF SIMPLICITY MFG., INC.
ALL RIGHTS RESERVED
MANUAL No. 5-0405 (I.R. 7/27/04)
36
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