Safety Instructions & Operator's Manual for
MID-MOUNT
ZERO TURNING
HYDRO DRIVE
SERIES 1
MODELS
HZT21481BV
MODEL NUMBER EXPLANATION
H
ZT
21
48
1
BV
MODEL DESIGNATION
DRIVE SYSTEM TYPE
ENGINE HP *
ENGINE TYPE
SERIES DESIGNATION
MOWER DECK SIZE
H - Homeowner Mid Mount
ZT - Zero Turning Hydro Drive
21 - Engine Horsepower
48 - 48" Mower Width
1 - Series Designation
B - Briggs Engine
V - Over Head Valve
Thank you for buying a SNAPPER Product! Before operating your machine, read this manual carefully and pay
particular attention to the "IMPORTANT SAFETY INSTRUCTIONS" on Pages 2 - 4. Remember that all power equip-
ment 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 © 2005
SNAPPER - A DIVISION OF SIMPLICITY MFG., INC.
ALL RIGHTS RESERVED
MANUAL No. 7100079 (I.R. 5/27/2005)
IMPORTANT SAFETY INSTRUCTIONS
!
!
PREPARATION
OPERATION
(Continued From Previous Page)
1. Mount and dismount machine from left side. Keep clear of
discharge opening at all times.
7. Keep people and pets out of mowing area. Immediately
STOP blades, STOP engine, and STOP machine if anyone 2. Start engine from operator's seat, if possible. Make sure
enters the area.
blades are OFF and parking brake is set.
8. Check shields, deflectors, switches, blade controls and 3. DO NOT leave machine with engine running. STOP
other safety devices frequently for proper operation and
location.
engine, STOP blades, SET brake, and Remove key before
leaving operators position of any reason.
9. Make sure all safety decals are clearly legible. Replace if 4. DO NOT operate machine unless properly seated with feet
damaged.
on feet rests or pedal(s).
10. Protect yourself when mowing and wear safety glasses, 5. STOP BLADES and ENGINE and make sure blades have
long pants and substantial footwear.
11. Know how to STOP blades and engine quickly in prepara-
tion for emergencies.
stopped before removing grass catcher or unclogging
mower to prevent loss of fingers or hand.
6. Blades must be OFF except when cutting grass. Set
blades in highest position when mowing over rough
ground.
12. Use extra care when loading or unloading the machine
into a trailer or truck.
13. Check grass catcher components frequently for signs of 7. Keep hands and feet away from rotating blades under-
wear or deterioration and replace as needed to prevent
injury from thrown objects going through weak or worn
spots.
neath 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
9. Slow down before turning.
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.
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 instruc-
tions.
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 poi-
son.
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.
2. Use only an approved fuel container.
3. DO NOT remove fuel cap or add fuel with the engine run-
ning. 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 contain-
ers on the ground away from the vehicle before filling.
7. Remove gas-powered equipment from the vehicle or trail-
er 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 vehi-
cles 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
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 (Continued From Previous Column)
towing. DO NOT attach towed equipment except at the 5. Keep all bolts, nuts and screws properly tight. Check that
hitch point. all cotter pins are in proper position.
2. Follow the manufacturer's recommendation for weight 6. Always provide adequate ventilation when running
limits for towed equipment and towing on slopes.
engine. Exhaust gases contain carbon monoxide, an
odorless and deadly poison.
3. DO NOT allow children or others on towed equipment.
4. On slopes, the weight of the towed equipment may cause 7. Disconnect negative (black) cable from battery before
loss of traction and loss of control.
performing maintenance or service. Cranking engine
could cause injury.
5. Travel slowly and allow extra distance to stop.
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 over-
speed engine.
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 chil-
dren in a well ventilated, unoccupied building.
2. Keep engine free of grass, leaves or excess grease to
reduce fire hazard and engine overheating.
11. Lubricate machine at intervals specified in manual to pre-
vent controls from binding.
12. Mower blades are sharp and can cut. Wrap the blades or
wear heavy leather gloves and use CAUTION when han-
dling 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 deal-
er at least once a year and have the dealer install any new
safety devices.
15. Maintain or replace safety and instruction labels as nec-
essary.
16. Use only genuine SNAPPER replacement parts to assure
that original standards are maintained.
3. When draining fuel tank, drain fuel into an approved con-
tainer outdoors and away from open flame.
4. Check brakes frequently; adjust, repair or replace as
needed.
WARNING
!
!
Grass Catcher bags used on SNAPPER products are made of
woven fabric, and are subject to deterioration and wear during nor-
mal usage. Check condition of bags before each use. Immediately
replace worn or damaged catcher bags with only bags recom-
mended by SNAPPER. The Grass Catcher is optional equipment
on some models.
4
TABLE OF CONTENTS
IMPORTANT SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
TABLE OF CONTENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
SECTION 1 - FAMILIARIZATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
SECTION 2 -SAFETY MESSAGES AND SYMBOLS . . . . . . . . . . . . . . . . . . . . . . . . . . .7-8
SECTION 3 - OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-13
Pre-start Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-10
Starting & Stopping Engine, Blades & Parking Brake . . . . . . . . . . . . . . . . . .10-11
Starting & Stopping Mower Blades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Parking Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Cutting Height Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Driving & Stopping Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-13
Safety Interlock System Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
SECTION 4 - MAINTENANCE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . .14-18
Change Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Check Mower Blade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Check Mower Drive Belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Check Belt Tension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Service - After every 25 Hours (Engine Components) . . . . . . . . . . . . . . . . . . . . .15
Service - After every 25 Hours (Mower Components) . . . . . . . . . . . . . . . . . . . . .15
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15-16
Mower Blade Spindle Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Mower Deck Linkage Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Front Wheel Bearings Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Hydro Pump Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Other Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Before Operating Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Annually - End of Season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16-18
Engine Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Fuel Filter Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Deck Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17-18
Hydraulic Fluid Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
SECTION 5 - ADJUSTMENTS AND REPAIR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19-27
Neutral Position Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19-20
Mower Deck Adjustment (Levelness) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-21
Parking Brake Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Traction Belt Tension & Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Blade Brake/Electric Clutch Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Tracking Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22-23
Mower Drive Belt Removal, Replacement & Adjustment . . . . . . . . . . . . . . . . . . .23
Engine Adjustments & Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Mower Blade Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Mower Blade Sharpening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Battery Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Battery Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Battery Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Battery Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
New Battery Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Hydraulic System, Purging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28-29
SERVICE SCHEDULE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Maintenance/Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
PRIMARY MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32-35
PRODUCT REGISTRATION FORM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
IMPORTANT
NOTICE: Operator Protective Structures are available as optional kits for the Mid-Mount and Out-Front Z-Rider
machines. These structures, when installed and used properly can offer additional security to the operator
against serious injury in the event of a tip over accident. Operator Protective Structures may be required by local
ordinances. Discuss your mowing application and ordinances with your local Snapper Dealer.
5
Section 1 - FAMILIARIZATION
BLADE SWITCH
KEY SWITCH
CHOKE CONTROL
HOUR METER
ENGINE SPEED
CONTROL
MOTION CONTROL
LEVER
MOTION CONTROL
LEVER
RIGHT HAND FUEL
TANK
LEFT HAND FUEL
TANK
PARKING BRAKE
LEVER
DECK LIFT LEVER
CONTROL PANEL
(see inset)
DISCHARGE
DEFLECTOR
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.
DECK LIFT PEDAL
FIGURE 1.1
1.1 INTRODUCTION
1.2 NOMENCLATURE
This manual has been prepared for the operators of the
SNAPPER MID MOUNT ZERO TURNING HYDRO DRIVE.
Its purpose, aside from 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 thru 4 of this manual and All
SAFETY messages on the unit and its attachments before
operating. SNAPPER recommends returning the unit to an
authorized SNAPPER dealer annually for inspection and
addition of any new devices which might upgrade the safe-
ty of the mower.
The nomenclature information above, Figure 1.1, shows
the essential parts of the unit. 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 head-
ing, ENGINES - gasoline.
6
Section 2 - SAFETY MESSAGES AND SYMBOLS
DANGER ! ROTATING PARTS
KEEP AWAY FROM MOVING PARTS
MOTION CONTROL LEVER OPERATION
WARNING ! GUARD OR GRASS
CATCHER MUST BE INSTALLED
WEAR HEARING PROTECTION
WARNING ! AVOID SERIOUS INJURY OR DEATH
PARKING BRAKE LEVER OPERATION
7
Section 2 - SAFETY MESSAGES AND SYMBOLS
CONTROL PANEL IDENTIFICATION
DANGER! ROTATING BLADES
KEEP CHILDREN AND OTHERS OUT OF MOWING AREA
DANGER! ROTATING BLADES
RUN
START
STOP
FUEL GAUGE (2)
IGNITION SWITCH
FUEL TANK SELECT
8
Section 3 - OPERATING INSTRUCTIONS
3.1 PRE-START CHECK LIST
3.1.8. Place mower in desired cutting height setting.
Make the following checks and perform the service
required before each start-up.
Grasp deck lift lever and move lever to desired cutting
height setting. Insert stop pin to desired cutting height.
IMPORTANT: There is a foot assist pedal located to
the right front side of the footrest. Always use this
assist pedal to raise or lower the deck to the desired
cutting height. See Figure 3.3.
3.1.1. Check tires and add or release air as needed to
bring pressure to 12 psi in drive tires. Pressure in front
caster wheels should be 25 psi.
3.1.2. Check guards, deflectors and covers to make
sure all are in place and securely tightened.
3.1.3. 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 3.1.
DECK LIFT
LEVER
SAFE LEVEL
AREA
FOOT ASSIST
PEDAL
FIGURE 3.1
INSERT STOP PIN
INTO HOLES FOR
DESIRED CUTTING
HEIGHT
3.1.4. Check Blade Switch to insure it works freely.
See Figure 3.2.
1. Pull the Blade Switch up to the "ON" position to
engage or turn "ON" the mower blades.
2. Push Blade Switch down to the "OFF" position to
disengage (or turn "OFF") the blades.
BLADE SWITCH
FIGURE 3.3
FIGURE 3.2
IMPORTANT: This machine is equipped with hydrostat-
ic drive. The direction of motion and the speed of
motion are controlled by the left and right motion con-
trol levers. A small movement of these controls can
cause the machine to move instantly. DO NOT attempt
to operate the machine until you read this manual and
become familiar with its operation. Practice with the
blades "OFF" disengaged, engine speed at a slow set-
ting and in an open area away from obstacles.
3.1.5. Clean exterior surfaces of cutting deck, engine
and pumps of any accumulation of dirt, grass, oil, etc.
Keep engine and pump air intake screens and cooling
fins clear at all times.
3.1.6. Add fuel to both tanks of the machine outside
where fumes can safely dissipate. Make sure both fuel
filler caps are tight. Note the fuel tank selector valve
behind left side of operator's seat. Refer to engine
owner's manual for fuel specifications.
3.1.7. Adjust position of operator's seat. The seat is
mounted to its base with two knobs and two bolts.
Loosen knobs and bolts, slide seat forward or back-
ward for most comfortable position, and retighten
hardware.
WARNING
!
!
DO NOT allow operation of the machine by
untrained personnel.
9
Section 3 - OPERATING INSTRUCTIONS
ROLL RELEASE: To roll the machine without the
engine running, pressure within the hydraulic pumps
must be released. There is a hydraulic pressure relief
valve on the upper side of each pump that is used to
release the pressure. Use a wrench to rotate both relief
valves counter clockwise two full turns to open. After
rolling machine, both relief valves must be rotated
clockwise to close valves and tighten securely before
operating machine. Machine will not move if relief
valves are open. See Figure 3.4.
3.2 STARTING & STOPPING - ENGINE, BLADES,
PARKING BRAKE
3.2.1. STARTING ENGINE
When the ignition key is turned the engine will not start
or turn over unless the blade switch is pushed in to the
"OFF" position and the motion control levers are in the
neutral lock position. Always engage parking brake
before starting engine.
1. Complete pre-start checklist.
2. Sit in operator's seat.
3. Push blade switch in to "OFF", blades disengaged
position and engage parking brake. See Figure 3.2.
4. Move choke control forward to choke position to
start a cold engine. See Figure 3.5.
5. Move engine speed control to the Rabbit "FAST"
position. See Figure 3.5.
6. Turn key to the start position until engine starts.
See Figure 3.6.
NOTE: If after 5 seconds of cranking the engine does
not start, release the key. Attempt starting again after
waiting for approximately 20 seconds.
7. After engine starts, move the choke control to the
"OFF" or no choke position. Allow a brief warm-up
until engine runs smooth.
ROTATE RELIEF VALVE
COUNTERCLOCKWISE TO
RELIEVE PRESSURE
CHOKE
CONTROL
ENGINE SPEED
CONTROL
KEY SWITCH
MOTION CONTROL
LEVERS SHOWN IN
THE NEUTRAL
RELIEF VALVE
LOCK POSITION
SHOWN FROM OPERATOR'S VIEW POINT
FIGURE 3.5
FIGURE 3.4
WARNING
!
!
DO NOT disengage the hydro transmission and
coast down slopes. DO NOT use Roll Release
Control to disengage the hydro transmission
unless machine motion can be controlled and
engine is off.
10
Section 3 - OPERATING INSTRUCTIONS
3.2.2. STOPPING ENGINE
NOTE: Engaging parking brake prior to placing motion
1. Stop engine by turning key to "STOP" position.
Move engine speed to the Turtle "SLOW" position and
turn key to "STOP". See Figure 3.6.
control levers in the neutral lock position will cause
engine to die. See Figure. 3.8.
2. Release parking brake by pushing parking brake
lever forward to the released position. See Figure 3.9.
KEY SWITCH
SHOWN FROM OPERATOR'S VIEW POINT
PARKING BRAKE
LEVER IN ENGAGED
"ON" POSITION
FIGURE 3.6
FIGURE 3.7
WARNING
!
!
DO NOT operate blades in reverse. STOP blades.
LOOK and SEE behind and down for children,
pets, and hazards before and while backing.
MOTION
CONTROL
LEVER
3.2.3. STARTING MOWER BLADES
1. Start engine and set engine speed control to the
Rabbit "FAST" position. See Figure 3.5.
2. Pull the Blade Switch up to the "ON" position to
engage or turn "ON" the mower blades. See Figure
3.2.
LEVER SHOWN IN
THE NEUTRAL
LOCK POSITION
FIGURE 3.8
3.2.4. STOPPING MOWER BLADES
1. Push Blade Switch down to "OFF" position to dis-
engage or turn "OFF" the blades.
2. Move engine speed control to the Turtle "SLOW"
position. Turn key to "STOP" position.
PARKING BRAKE
LEVER IN RELEASED
"OFF" POSITION
WARNING
!
!
Once blades are disengaged, they should come
to a complete stop in 5 seconds. If the blades
continue to rotate after 5 seconds, the electric
clutch should be checked. Adjustment or replace-
ment of electric clutch may be necessary. Return
the machine to an authorized Snapper dealer for
replacement. DO NOT CONTINUE to operate
mower if blades fail to stop in 5 seconds.
FIGURE 3.9
!
WARNING
!
3.2.5. PARKING BRAKE
1. Engage parking brake by pulling the parking brake
lever back to the engaged position. See Figure 3.7.
DO NOT park the machine on slopes. DO NOT
leave machine with engine running. Stop engine.
Stop blades. Engage parking brake. Remove key.
11
Section 3 - OPERATING INSTRUCTIONS
3.3 CUTTING HEIGHT ADJUSTMENT
3.4 OPERATION- MOTION CONTROLS
1. Adjust cutting height, as desired, to any position,
using deck lift lever. IMPORTANT: There is a foot
assist pedal located to the right front side of the
footrest. Always use this assist pedal to raise or lower
the deck to the desired cutting height. See Figure 3.10.
2. Insert the stop pin to desired cutting height. See
Figure 3.11.
This machine is equipped with dual hydrostatic wheel drive
transmissions. Each hydro pump is controlled by a sepa-
rate motion control lever. The left lever controls the left
wheel drive hydro pump and the right lever controls the
right wheel drive hydro pump. These levers control the
direction of motion, Forward & Reverse, and the speed of
motion. Move both levers forward to propel the machine
forward. Move both levers rearward to propel the machine
in reverse. The speed of motion is continuously variable
from neutral (zero) to the maximum. Moving the levers far-
ther from the neutral position will cause the speed of
motion to increase. To turn, move the lever on the side to
which you want to turn slightly rearward of the other lever.
Move levers slowly and carefully. DO NOT make sudden
changes in speed or direction. Always slow machine
motion before turning. To stop the motion of the machine,
bring both motion control levers to the neutral position.
Engage parking brake.
NOTE: The engine does not have to be running to
adjust cutting height.
DECK LIFT LEVER
SHOWN IN HIGHEST
POSITION
3.4.1. DRIVING MACHINE
1. Start engine. Release parking brake.
2. Drop motion control levers down from neutral lock
positions. See Figure 3.12.
DECK LIFT
ASSIST PEDAL
3. Move motion control levers gently and with caution
in desired direction. See Figure 3.12.
FORWARD - Move both control levers forward.
REVERSE - Move both control levers rearward.
LEFT TURN - Move left control rearward or move right
control lever forward.
FIGURE 3.10
RIGHT TURN - Move left control forward or move right
control lever rearward.
ZERO RADIUS TURN - Move one control lever for-
ward and move the other control lever rearward simul-
taneously.
REARWARD
MOVEMENT
6 HOLE POSITIONS
FOR STOP PIN
FIGURE 3.11
FORWARD
MOVEMENT
!
WARNING
!
DO NOT make turns at high speed. Slow machine
motion. Move motion control lever gently and
with caution. DO NOT make sudden changes in
speed or direction.
FIGURE 3.12
!
WARNING
!
Zero-turning the machine at any speed can result
in operator disorientation, or in operator being
thrown from the machine. Exercise extreme cau-
tion when executing a zero-turn.
12
Section 3 - OPERATING INSTRUCTIONS
3.4.2. STOPPING MACHINE
3.5 SAFETY INTERLOCK SYSTEM CHECKS
1. Return motion control levers to the neutral position
& the neutral lock position.
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 follow-
ing interlock system checks periodically during the operat-
ing season. Contact your authorized Snapper dealer if you
have questions.
IMPORTANT: Operator must use hand assistance to
bring both motion control levers to the neutral position
& the neutral lock position.
!
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.
MOTION
ENGINE MUST NOT START IF:
CONTROL
LEVER
1. Motion Control Lever(s) are not in the neutral lock
position OR,
NEUTRAL
LOCK
POSITION
2. Parking Brake disengaged OR,
3. Blade Switch in the "ON" blades engaged position.
ENGINE SHOULD START IF:
FIGURE 3.13
1. Blade Switch in the "OFF" blades disengaged posi-
tion AND,
2. Engage parking brake.
3. Push Blade Switch down to the "OFF" position to
disengage or turn "OFF" the blades.
4. Stop engine. Move engine speed control to turtle
"SLOW" position. Turn key to stop position.
5. Remove key.
2. Motion Control Levers are both in the neutral lock
position AND,
3. Operator properly seated in the Operator's Seat
OR,
4. Parking Brake engaged.
NOTE: The engine can be started with the parking
brake disengaged only if conditions in 1, 2 and 3 have
been met.
!
WARNING
!
ENGINE MUST BEGIN TO STOP IF:
1. Motion Control Levers are moved from the neutral
lock position with Parking Brake engaged OR,
2. Operator rises off of seat with Blade Switch in "ON"
blades engaged position OR,
DO NOT park the machine on slopes. DO NOT
leave machine with engine running. Stop engine.
Stop blades. Engage parking brake. Remove key.
3. Operator rises off of seat with Parking Brake disen-
gaged.
IMPORTANT: Engine and blades will continue to run if
Operator becomes reseated prior to engine coming to
a complete stop. After coming to a complete stop, the
blade switch must be moved to the "OFF" position
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.
13
Section 4 - MAINTENANCE
4.1 INTRODUCTION
4. Fill engine crankcase with new oil. Refer to your
engine owner's manual for oil specifications.
To retain the quality of the SNAPPER mower, use gen-
uine SNAPPER replacement parts only. Contact a
local SNAPPER dealer for parts and service assis-
tance. For the correct part or information for a particu-
lar SNAPPER mower, always mention the model and
serial number. SNAPPER recommends returning the
mower to an authorized SNAPPER dealer annually for
inspection and addition of any new devices, which
might upgrade the safety of the mower. For the near-
est SNAPPER dealer in your area, check the yellow
pages under the heading LAWN MOWERS. For
engine parts and service, look for the engine manufac-
turer's dealers under the heading, ENGINES - gaso-
line.
5. Change engine oil filter at every oil change. Refer
to your engine owner's manual for service instructions.
4.2.2. CHECK MOWER BLADE
1. Stop Engine. Remove key. Disconnect spark plug
wire(s) and secure away from spark plug(s).
2. Engage parking brake.
3. Use a hydraulic floor jack or hoist to raise machine
high enough to gain access to the underside of deck.
Secure machine with safety blocks.
!
WARNING
!
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. Refer to Section
"MOWER BLADE REPLACEMENT" for proper
blade inspection and service procedures.
4.2 SERVICE - AFTER FIRST 5 HOURS
WARNING
!
!
DO NOT attempt any maintenance, adjustments or
service with engine running. STOP engine. STOP
blades. Set brake. Remove key. Remove spark plug
wires and secure away from spark plugs. Engine
and components are HOT. Avoid serious burns;
allow sufficient time for all parts to cool.
4. Check torque of blade mounting bolts. As neces-
sary, torque to 70 to 80 ft. lbs. See Figure 4.2.
5. Check blade for sharpness, wear and damage.
Refer to Section "BLADE WEAR LIMITS".
6. Check blade for straightness.
4.2.1. CHANGE ENGINE OIL
Change engine oil as follows:
1. Place a 4 quart minimum capacity container under
the end of the oil drain.
2. Rotate counter clockwise and pull out to open the
drain plug. See Figure 4.1.
CHECK BLADE MOUNTING
BOLTS - TORQUE SHOULD
BE 70 TO 80 FT. LBS.
ROTATE PLUG COUNTER CLOCKWISE
THEN PULL OUT TO DRAIN OIL
FIGURE 4.2
FIGURE 4.1
3. 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 4.1.
14
Section 4 - MAINTENANCE
4.2.3. CHECK MOWER DRIVE BELT
1. Lower deck to lowest setting.
4. Clean Mower Deck
a. Remove key from ignition switch.
b. Remove spark plug wire(s) and secure away from
spark plug(s).
2. Remove footrest. See Figure 4.3.
3. Removal of footrest will allow access to mower
drive belt.
4. Check the belt tension. If belt is frayed, slit, sev-
ered or belt strands exposed, replace belt before oper-
ating mower. Refer to Section "MOWER DRIVE BELT
REPLACEMENT AND ADJUSTMENT".
c. Raise mower deck to its highest setting. It may be
necessary to raise mower deck higher using a
hydraulic floor jack. Secure machine with safety
blocks.
d. Clean underside of mower deck, removing all accu-
mulation of grass clippings and debris.
e. Clean top of deck, removing all grass clippings and
debris.
5. Mower Blade Spindle - Lubrication
a. Raise mower deck to its highest setting. It may be
necessary to raise mower deck higher using a
hydraulic floor jack. Secure machine with safety
blocks.
b. Lubricate with Kendall NLGI No. 2 lithium grease or
equivalent, from a grease gun. Grease fittings are
located on spindle housings underneath deck. See
Figure 4.4.
LUBRICATE
SPINDLE
ASSEMBLIES
LIFT FOOT REST UP AND OFF POWER UNIT
FRAME TO GAIN ACCESS TO MOWER BELT
FIGURE 4.3
4.3 AFTER EVERY 25 OPERATING HOURS
4.3.1. ENGINE
1. Engine Oil
Change engine oil. Refer to Section "CHANGE
ENGINE OIL". Refer to engine owner's manual for oil
specifications.
FIGURE 4.4
(Deck shown with discharge raised)
2. Air Filter
Refer to engine owner's manual for service instruc-
tions.
6. Mower Deck Linkage - Lubrication
Lubricate all mower deck linkage pivot points with a
light coat of motor oil.
4.3.2. MOWER COMPONENTS
1. Mower Drive Belt
Check belt tension. Replace belt as needed. Refer to
Section "MOWER DRIVE BELT REPLACEMENT AND
ADJUSTMENT".
WARNING
!
!
2. Mower Blade
DO NOT attempt any maintenance, adjustments or
service with engine running. STOP engine. STOP
blades. Set brake. Remove key. Remove spark plug
wires and secure away from spark plugs. Engine
and components are HOT. Avoid serious burns;
allow sufficient time for all parts to cool.
Check blade for sharpness, wear, damage, and
torque. Refer to Section "MOWER BLADE REPLACE-
MENT".
3. Mower Deck Levelness
Check mower deck for proper levelness. Adjust as
required. Refer to Section "MOWER DECK ADJUST-
MENT - LEVELNESS".
15
Section 4 - MAINTENANCE
4.3.3. RIDING MOWER - LUBRICATION
1. Front Wheel Bearings
Lubricate with Kendall NLGI No. 2 lithium grease or
equivalent, from a grease gun. See Figure 4.5.
HYDRAULIC FLUID
RESERVOIR
FIGURE 4.6
LUBRICATE
CASTER
WHEEL
LUBRICATE
BEARINGS
FRONT
WHEEL
FIGURE 4.5
2. Hydro Pumps
Check the level of the fluid in the fluid reservoir. Wipe
away all dirt and debris from around reservoir cap
before removing. Oil must remain absolutely clean!
Check with machine on a level surface with engine
"OFF". Fill reservoir as needed to bring level up. The
reservoir is properly filled when the fluid level is 1½"
below the top of the filler neck. DO NOT OVER FILL.
Use clean, fresh premium automotive oil having a vis-
cosity equivalent to SAE 20W50 API SL. The fluid
should be chemically stable, incorporating rust and
oxidation inhibitors. Make sure funnels, pouring spouts
and oil can are completely clean. Reinstall reservoir
cap. See Figure 4.6.
3. Other Lubrication Points
Lubricate machine caster wheel shafts and traction
idler arm with Kendall NLGI No. 2 lithium grease or
equivalent, from a grease gun. See Figure 4.7.
LUBRICATE TRACTION
DRIVE IDLER ARM
(GREASE FITTING
LOCATED ON BOSS
ABOVE IDLER ARM)
4.4 BEFORE OPERATING MACHINE
1. Clean all dirt and debris from around the hydraulic
fluid reservoir, especially around the top and cap area.
2. Clean all dirt and debris from the cooling fins on the
engine and from both hydraulic pumps.
ELECTRIC
CLUTCH
FIGURE 4.7
4.5 ANNUALLY (END OF EACH SEASON)
Perform all maintenance as described in Section
"AFTER EVERY 25 OPERATING HOURS". Refer to
Section "Service Schedule".
(Continued on next Page)
4.5.1. ENGINE
Service engine according to engine owner's manual.
16
Section 4 - MAINTENANCE
4.6 DECK REMOVAL
!
WARNING
!
Move power unit/mower deck to an area where the
mower deck is to be disconnected. Turn engine "OFF"
and remove key from switch. Remove spark plug
wire(s) and secure away from spark plug(s). Move
motion control levers to the neutral lock position.
Engage parking brake.
Allow engine to cool for at least ten minutes before
performing service or maintenance. DO NOT smoke
near fuel components when performing service or
maintenance. DO NOT perform service and mainte-
nance near an open flame. Wipe off any spilled fuel
before starting engine. DO NOT run engine indoors.
1. Move deck lift lever and set the mower deck to the
highest cutting position. See Figure 4.9.
2. Place a wooden block under the front and rear
edge of the mower deck.
4.5 ANNUALLY (END OF EACH SEASON)
(Continued from previous Page)
4.5.2. FUEL FILTER
Service fuel filter as instructed below. Turn key to
"OFF" position. Engine MUST be stopped and MUST
be cold before removing filter. Clamp fuel line to pre-
vent fuel spillage or perform filter change when fuel
tank and fuel line are empty.
3. Move deck lift lever and set the mower deck to a
lower cutting position until deck rests on wooden
blocks. Position the deck to where there is no tension
on the deck hanger chains. See Figure 4.9.
1. Remove fuel line clamps from fuel filter.
2. Remove fuel lines from filter. Discard filter.
3. Install new fuel filter. IMPORTANT: Some fuel filters
are fuel flow directional. Check for arrow that shows
fuel flow direction. Reinstall fuel line clamps. See
Figure 4.8.
HIGHEST
CUTTING
POSITION
LOWEST
CUTTING
POSITION
LEFT SIDE OF
MACHINE
POSITION DECK LIFT LEVER IN HIGHEST CUTTING
POSITION. PLACE WOODEN BLOCKS UNDER FRONT
AND REAR OF DECK. LOWER DECK ONTO BLOCKS
FIGURE 4.9
(Continued On Next Page)
CLAMP FUEL LINE
TO PREVENT
SPILLAGE
REMOVE
FUEL FILTER
REMOVE LINE
CLAMPS
CLAMP FUEL LINE
TO PREVENT
SPILLAGE
FIGURE 4.8
17
Section 4 - MAINTENANCE
7. Remove bolts and nuts to disconnect both stabiliz-
ers from mower deck and power unit. See Figure 4.12
and 4.13.
!
WARNING
!
DO NOT attempt any maintenance, adjustments or
service with engine running. STOP engine. STOP
blades. Set brake. Remove key. Remove spark plug
wires and secure away from spark plugs. Engine and
components are HOT. Avoid serious burns; allow suf-
ficient time for all parts to cool.
4.6 DECK REMOVAL (Continued from previous page)
4. Remove inside nuts that secure chain to front lift
arm. See Figure 4.10.
STABILIZER
FRONT
LIFT ARM
REMOVE NUTS AND BOLTS
THAT SECURE STABILIZERS
TO MOWER DECK
DECK
FIGURE 4.12
CHAIN
REMOVE INSIDE
NUT THAT
SECURES CHAIN TO
FRONT LIFT ARM
DECK HANGER
BRACKET
STABILIZER
DECK
FIGURE 4.10
5. Remove inside nuts that secure chain to rear lift
arm. See Figure 4.11.
REMOVE NUTS AND BOLTS
THAT SECURE STABILIZERS
TO POWER UNIT
REMOVE INSIDE NUT
THAT SECURES CHAIN
TO REAR LIFT ARM
FIGURE 4.13
8. Remove wooden blocks from underneath deck and
roll/slide deck from underneath power unit.
9. Reinstall deck in reverse order, in which it was
removed. Torque hardware to 20 to 30 ft lbs.
REAR LIFT ARM
CHAIN
4.7 HYDRAULIC FLUID FILTER
IMPORTANT: REFER TO SECTION "HYDRAULIC SYS-
TEM PURGING" BEFORE PERFORMING FILTER MAIN-
TENANCE.
The first filter change is recommended at 200 hours.
After the first change, the recommended interval is
every 500 hours. Replace with approved filter only
(Snapper P/N 1719168). Install following instructions
provided with the filter. Add SAE 20W50 oil to bring the
level in the reservoir to 1-½" below top of filler neck.
Run machine for several minutes and re-check fluid
level. Add oil as needed.
FIGURE 4.11
6. Remove mower drive belt from around blade clutch
pulley. Refer to Section “MOWER DRIVE BELT
REPLACEMENT AND ADJUSTMENT”.
18
Section 5 - ADJUSTMENTS & REPAIR
!
WARNING
!
Exercise EXTREME CAUTION when making this
adjustment, due to close proximity of moving parts.
REMOVE MOTION CONTROL
LEVER CONNECTING ROD
5.1 NEUTRAL POSITION ADJUSTMENTS
The motion control levers control the movement and
stopping of the machine. Move the control levers to the
center or neutral position to stop machine.
IMPORTANT: Always return both motion control
levers with hand assistance to the neutral posi-
tion. If machine does not come to a complete stop
or machine has movement when control levers are
moved to the neutral lock position, adjustment
must be made.
HYDRO PUMP
ACTIVATION
ASSEMBLY
1. Turn key to "OFF" position.
FIGURE 5.2
2. Move motion control levers to the neutral lock posi-
tion. Refer to Figure 3.7.
3. Raise both rear wheels off the ground. Secure
machine with safety blocks.
MOVE ACTIVATION
ASSEMBLY REARWARD
OR FORWARD TO
4. Remove cover screen to expose top of hydro
pumps and linkages. See Figure 5.1.
5. Remove both fans from top of hydro pumps.
6. Disconnect motion lever connecting rods from
hydro pump activation assembly. See Figure 5.2.
ACHIEVE NEUTRAL
REMOVE SCREEN
LOOSEN ACTIVATION
ASSEMBLY RETAINING
SCREW
FIGURE 5.3
(Continued On Next Page)
SCREEN RETAINING HARDWARE
FIGURE 5.1
7. Turn key to start position and start machine. Move
engine speed control to the Rabbit "FAST" position.
8. Disengage parking brake.
9. Both wheels should not have any movement, not
rotating.
10. If wheel(s) are rotating, loosen the hydro pump
activation assembly retaining screw. Move activation
assembly forward or rearward to stop rotation of
wheel. Retighten retaining screw. Repeat this step for
other hydro pump. See Figure 5.3.
11. Stop engine.
19
Section 5 - ADJUSTMENTS & REPAIR
5.1 NEUTRAL POSITION ADJUSTMENTS
5.2 MOWER DECK & COMPONENT ADJUSTMENTS
(Continued From Previous Page)
5.2.1. MOWER DECK ADJUSTMENT (LEVELNESS)
SIDE to SIDE and FRONT to REAR
12. With motion control levers remaining in the neutral
lock position, See Figure 3.7, hold connecting rod up
to the activation assembly and check length of rod. Tie
rod end bolt must align with the activation assembly. If
bolt is not aligned with the activation assembly, adjust
tie rod. Loosen jam nut that secures tie rod. Rotate tie
rod in or out to align with hole in activation assembly.
Repeat step for other hydro pump. See Figure 5.4.
Before making deck leveling adjustments, inflate rear
tires to 12 PSI and front tires to 25 PSI. When adjust-
ed correctly, the deck will be level side to side within
1/8", have a low cut setting of approximately 1", and
the blades pitched approximately 3/16" higher at the
rear.
1. Place machine on a smooth level surface.
2. Check side to side level by rotating blades until tips
are pointing to the sides of the deck. Check the meas-
urement of outside blade tips to the ground on both
blades. The measurement of each of the outside blade
tips should be within 1/8" of each other. If measure-
ment of the blade tips is not within 1/8", adjustment
should be made.
HYDRO PUMP
ACTIVATION
ASSEMBLY
HYDRO
PUMP
3. Move deck lift lever and set the mower deck to the
highest cutting position.
TIE ROD END
BOLT IS SHOWN
MISALIGNED
4. Place 1" blocks under the front and rear edge of the
mower deck.
WITH ACTIVATION
ASSEMBLY
5. Move deck lift lever and set the mower deck to the
lowest cutting position.
6. Loosen the nuts and bolts that secure both front
deck support chains. Adjust chains until tight and
retighten bolts and nuts. Torque to 20 to 30 ft. lbs. See
Figure 5.5.
LOOSEN NUT AND
ROTATE TIE ROD END IN
OR OUT TO ALIGN WITH
ACTIVATION ASSEMBLY
TIE ROD END
FRONT
LIFT ARM
CHAIN
DECK HANGER
BRACKET
BOLT IS SHOWN
ALIGNED WITH
HOLE
LOOSEN BOLT AND NUT,
TIGHTEN CHAIN, SECURE
BOLT AND NUT
FIGURE 5.5
FIGURE 5.4
13. Once tie rod end bolt is aligned with activation
assembly insert into hole and reinstall washers and
nut that secure bolt to assembly. Tighten securely.
Tighten tie rod jam nut securely.
7. Loosen the nuts that secure both rear deck support
eyebolts. Adjust to remove slack from both rear
chains. Tighten nuts securely. See Figure 5.6.
14. Start engine, disengage parking brake, and check
rotation of the rear wheels.
15. Reinstall both hydro pump fans. Reinstall washer
and bolt. Tighten bolt securely.
16. Reinstall screen and tighten retaining hardware
securely.
20
Section 5 - ADJUSTMENTS & REPAIR
!
!
WARNING
WARNING
!
!
DO NOT operate this machine if the brakes are not
functioning properly!
DO NOT attempt any maintenance, adjustments or
service with engine running. STOP engine. STOP
blades. Set brake. Remove key. Remove spark plug
wires and secure away from spark plugs. Engine and
components are HOT. Avoid serious burns; allow suf-
ficient time for all parts to cool.
5.3 PARKING BRAKE ADJUSTMENT
The parking brake can be adjusted to increase brake
tension. (NOTE: If adjustment does not result in prop-
er braking action, contact your authorized SNAPPER
dealer for corrective action.)
5.2.1. MOWER DECK ADJUSTMENT (LEVELNESS)
SIDE to SIDE and FRONT to REAR
1. Engage parking brake and measure height of left
and right brake springs. See Figure 5.8. Compressed
height of each spring should be 1-1/4". If not:
a. Disengage parking brake.
b. Tighten nyloc nut on each brake rod in one turn
increments. See Figure 5.8.
c. Engage parking brake, recheck brake spring
compression measurement, and repeat 'a' and 'b'
as needed.
IMPORTANT - Do not adjust primary brake rod.
Adjustment has been preset at the factory. See Figure 5.9.
LOOSEN NUTS
AND POSITION
CHAIN UNTIL
TIGHT
BRAKE SPRING HEIGHT
SHOULD BE 1-1/4”
WHEN PARKING BRAKE
IS ENGAGED
1-1/4”
FIGURE 5.6
8. Move deck lift lever and set the mower deck to the
highest cutting position and recheck side to side blade
tip dimensions. The difference between the two should
be 1/8" or less.
NOTE: The deck timing rod is preset at the factory and
requires no adjustments. See Figure 5.7.
9. The leveling blocks used in Step 4 should result in
a proper deck pitch. If a pitch adjustment is required,
use the two rear deck support eyebolts. Adjust up or
down as required.
FIGURE 5.8
PRIMARY
BRAKE ROD
LOCKNUT PRESET AT FACTORY -
DO NOT ADJUST
DECK TIMING ROD
NO ADJUSTMENT REQUIRED
FIGURE 5.9
FIGURE 5.7
21
Section 5 - ADJUSTMENTS & REPAIR
5.5 BLADE BRAKE/ELECTRIC CLUTCH ADJUSTMENT
!
WARNING
!
The blade switch engages the electric clutch when
pulled out to the "ON" position. When the blade switch
is in the "ON" position the cutting blade(s) are
engaged. The blade switch disengages the electric
clutch when the blade switch is pushed in to the "OFF"
position. When the blade switch is in the "OFF" posi-
tion the cutting blade(s) are disengaged. The electric
clutch is adjustable. The blades should stop rotation in
5 seconds or less. If the electric clutch fails to stop the
blades rotation in 5 seconds, adjustment is necessary.
1. Insert a feeler gauge into the three slots on the
electric clutch.
DO NOT attempt any maintenance, adjustments or
service with engine running. STOP engine. STOP
blades. Set brake. Remove key. Remove spark plug
wires and secure away from spark plugs. Engine and
components are HOT. Avoid serious burns; allow suf-
ficient time for all parts to cool.
5.3 TRACTION BELT TENSION
The traction drive belt tension does not require adjustment.
If the belt is slipping, it will have to be replaced.
5.4 TRACTION BELT REPLACEMENT
1. Remove mower drive belt from around clutch pul-
ley. See Figure 5.10. Refer to Section "MOWER
DRIVE BELT REPLACEMENT AND ADJUSTMENT".
2. Turn lock nut out to the end of eyebolt, reducing
spring tension. Unhook traction idler spring from bolt in
frame. See Figure 5.10.
2. Check gap through all three slots in the side of the
clutch. The gap should be set at .015.
3. If gap is incorrect rotate nuts in or out to achieve the
correct gap. See Figure 5.11.
NOTE: Electric Clutch is shown removed from the
machine. Removal is not necessary for adjustment.
3. Remove anti-rotation bracket. See Figure 5.10.
4. Disconnect the electric clutch from main wire har-
ness.
INSERT FEELER GAUGE.
GAP SHOULD BE .015
5. Remove traction belt from around engine pulley
and hydro pumps.
6. Install new belt and route around engine pulley and
hydro pump pulleys.
7. Reconnect electric clutch to main wire harness.
8. Reinstall anti-rotation bracket and tighten nuts
securely.
9. Reattach traction idler spring. Run lock nut all the
way to the end of the threads on the eyebolt. See
Figure 5.10.
10. Reinstall mower drive belt onto clutch pulley.
Refer to Section "MOWER DRIVE BELT REPLACE-
MENT AND ADJUSTMENT".
ROTATE NUTS IN OR
OUT TO ACHIEVE
CORRECT GAP
FIGURE 5.11
5.6 TRACKING ADJUSTMENT
UNHOOK TRACTION
DRIVE IDLER SPRING
REMOVE ANTI-ROTATION
BRACKET
If the machine does not track straight when the Motion
Control Levers are in the maximum forward speed
position, perform the following adjustment. Rear tire
pressure must be set to 12 PSI before making this
adjustment.
1. Loosen bolts that secure adjustment plates and
slide plates all the way forward. Retighten bolts. See
Figure 5.12.
2. Start machine and drive in smooth flat open area at
maximum forward speed.
EYEBOLT
3. If machine tracks to the right, loosen bolts that
secure the left adjustment plate. Move plate rearward
to slow the left wheel. Retighten bolts.
LOOSEN
LOCK NUT
4. If machine tracks to the left, loosen bolts that
secure the right adjustment plate. Move plate rearward
to slow the right wheel down. Retighten bolts. See
Figure 5.12.
5. Drive machine again. Repeat adjustment as neces-
sary until machine tracks straight.
REMOVE MOWER DRIVE BELT
FROM AROUND CLUTCH PULLEY
FIGURE 5.10
22
Section 5 - ADJUSTMENTS & REPAIR
3. Remove old mower drive belt. Note the belt routing.
LOOSEN BOLTS,
SLIDE PLATE TO
MAKE MACHINE
TRACK STRAIGHT
See Figure 5.13.
5.7.2. BELT REPLACEMENT
1. Route new belt around blade pulleys, idler pulley,
and clutch pulley in the same position as old belt was
removed. See Figure 5.13.
2. Reconnect deck idler tensioning rod as previously
removed. Refer to Section 'Belt Adjustment' below for
proper belt tension adjustment.
TRACKING
ADJUSTMENT
PLATE
3. Reinstall power unit footrest.
RIGHT SIDE
MOTION CONTROL
LEVER BLOCK
LOOSEN BOLTS, ALIGN
HANDLEBARS AS IN
FIGURE 5.12a
5.7.3. BELT ADJUSTMENT
To adjust belt tension, loosen jam nut on deck idler
tensioning rod, then adjust inner nut in or out until idler
spring measures 2-5/16". See Figure 5.13a. Tighten
jam nut against inner nut after adjustment is achieved.
FIGURE 5.12
5.6aMOTION LEVER HANDLEBAR ALIGNMENT
Handlebars of both left and right Motion Control
Levers should be aligned when levers are dropped
from their neutral lock positions. See Figure 5.12a. If
bars are not aligned:
RIGHT
PULLEY
1. Loosen bolts that secure handlebar adjustment
brackets to lever blocks, and adjust handlebars until
aligned. See Figure 5.12. Retighten bolts after align-
ment is achieved.
CENTER
PULLEY
ELECTRIC
CLUTCH
2. Note that handlebars are adjustable, and can be
raised or lowered to provide optimum operator com-
fort. Simply remove hardware securing handlebars to
handlebar adjustment brackets, raise or lower bars,
and replace hardware.
MOWER
DRIVE
BELT
ALIGN HANDLEBARS
RAISE OR
LOWER BARS
LEFT
PULLEY
BELT ROUTING
DROP LEVERS FROM
NEUTRAL POSITION
REMOVE
HARDWARE
FIGURE 5.13
FIGURE 5.12a
TO REMOVE BELT, REMOVE
JAM NUT AND INNER NUT,
WASHERS AND SPRING
5.7 MOWER DRIVE BELT REPLACEMENT AND
ADJUSTMENT
AFTER REPLACING
BELT, REPLACE SPRING,
WASHERS AND INNER
NUT, AND TIGHTEN
UNTIL SPRING LENGTH
IS 2-5/16”. THEN
INSTALL JAM NUT AND
TIGHTEN AGAINST
INNER NUT.
Inspect mower drive belt. Replace belt if it shows signs
of excessive wear, damage and/or is broken.
5.7.1. BELT REMOVAL
1. Remove power unit footrest.
2-5/16”
2. Remove jam nut, inner nut, washers and spring
from front threads of deck idler tensioning rod. See
Figure 5.13a. Slip rod out of deck bracket, and swivel
deck idler pulley back.
FIGURE 5.13a
23
Section 5 - ADJUSTMENTS & REPAIR
5.8 ENGINE ADJUSTMENTS & REPAIR
Refer to the engine owner's manual for engine adjust-
ments and/or repairs.
5.9 MOWER BLADE REPLACEMENT
5.9.1. BLADE WEAR LIMITS
SPINDLE
ASSEMBLY
1. Inspect blade frequently for signs of excessive
wear or damage. Replace blade when it reaches the
wear limit. See Figure 5.14.
5.9.2. BLADE SHARPENING
1. Remove blade. See Figure 5.15.
2. Inspect condition of blade. See Figure 5.14.
3. If blade is in good condition, sharpen at 22 to 28
degrees. DO NOT sharpen beyond original cutting
edge. See Figure 5.16.
4. Check blade balance after sharpening. If neces-
sary, correct blade balance by grinding the heavy end
of blade.
BLADE
CONE WASHER
BLADE
MOUNTING
NUT
IMPORTANT: Blade balancing should be performed by a
qualified dealer.
FIGURE 5.15
5. Reinstall blade. See Figure 5.15. Torque blade
mounting nuts to recommended range of 70 to 80 ft.
lbs.
BLADE
NEW BLADE
o
o
22 TO 28
ORIGINAL CUTTING EDGE
WEAR LIMIT
(NOTCH STARTS)
FIGURE 5.16
DANGEROUS CONDITION!
DO NOT USE ON MOWER!
REPLACE WITH NEW BLADE.
FIGURE 5.14
24
Section 5 - ADJUSTMENTS & REPAIR
!
WARNING
!
DO NOT attempt any maintenance, adjustments or
service with engine running. STOP engine. STOP
blades. Set brake. Remove key. Remove spark plug
wires and secure away from spark plugs. Engine and
components are HOT. Avoid serious burns; allow suf-
ficient time for all parts to cool.
BLACK (NEGATIVE)
CABLE
RED (POSITIVE)
CABLE
5.10BATTERY
5.10.1. BATTERY REMOVAL
1. Remove battery retainer. See Figure 5.17.
2. Slide terminal cover away from positive terminal.
3. Observe and note cable positions on battery.
Disconnect cables from battery terminals, disconnect-
ing BLACK (Negative) cable first and RED (Positive)
last. Retain mounting bolts and nuts. See Figure 5.17.
TERMINAL COVER MUST
SHIELD POSITIVE TERMINAL
AFTER INSTALLATION
WHEN DISCONNECTING
CABLES, DISCONNECT
NEGATIVE FIRST
FIGURE 5.18
5.10.3. BATTERY CHARGING
NOTE: The battery in this machine is maintenance-
free. It has been filled to the proper level with acid
and is sealed. Do not attempt to open battery.
1. Remove battery.
2. Place battery in a well-ventilated area on a level,
non-concrete surface.
REMOVE
BATTERY
RETAINER
3. Connect battery charger to battery terminals. RED
to positive (+) terminal and BLACK to negative (-) ter-
minal.
4. Slow charge battery at 6-10 amps for 1 hour.
5. If battery will not accept charge or is partially
charged after 1 hour of charging, replace with new bat-
tery.
DATE
FIGURE 5.17
5.10.2. BATTERY INSTALLATION
!
WARNING
!
1. Position battery into battery compartment.
2. Connect cables to battery terminals. Connect RED
(Positive) cable first. Connect BLACK (Negative) cable
last. See Figure 5.18.
Keep all sparks, flame and fire away from area when
charging battery.
3. Reinstall battery retainer and positive terminal
cover. See Figure 5.17.
25
Section 5 - ADJUSTMENTS & REPAIR
5.10.4. BATTERY TESTING
!
WARNING
!
1. Remove battery. Refer to Section "BATTERY
REMOVAL".
DO NOT attempt to service or charge the battery while
it is installed in the machine. DO NOT use "BOOST"
chargers on the battery.
2. Using a voltmeter, check the battery's state of
charge by comparing the voltmeter reading with the
chart below. (Remember to hook the positive (red)
lead of the voltmeter to the battery's positive terminal,
and the negative lead to the negative terminal.)
!
WARNING
!
Shield the positive terminal with terminal cover locat-
ed on battery harness. This prevents metal from
touching the positive terminal, which could cause
sparks. Cables must be connected to battery terminals
in the proper position. RED (Positive) cable must go to
the ( + ) terminal. BLACK (Negative) cable must go to
the ( - ) terminal.
Battery Condition Chart
State of Charge
100% Charged w/Sulfate Stop
100% Charged
Digital Voltmeter
12.80v
12.60v
75% Charged
12.40v
50% Charged
12.10v
25% Charged
11.90v
0% Charged
Less than 11.80v
5.10.5. NEW BATTERY PREPARATION
1. Remove battery from carton.
2. Place battery in a well ventilated area on a level
non-concrete surface.
3. Check date on battery label. See Figure 5.17. If
battery is placed into service after the date shown,
charge battery. Refer to section "BATTERY CHARG-
ING".
4. After charging (if required), slide battery partially
into battery housing.
5. Connect positive (+) cable (red) first, from wiring
harness to the positive terminal (+) on battery using
bolt and nut provided in hardware bag. Connect nega-
tive (-) cable (black) last, to negative terminal (-) on
battery using bolt and nut. Apply a small amount of
grease over terminals to prevent corrosion.
6. Install battery retainer and positive terminal cover.
26
Section 5 - ADJUSTMENTS & REPAIR
5.11HYDRAULIC SYSTEM, PURGING
After replacing or repairing hydraulic system compo-
nents, one or both of the wheel drives may not pull
properly. This is likely to be caused by air entrapped in
the system. If you experience a pulling issue after
completing repairs, perform the following procedure to
purge the air from one or both of the hydraulic drive
systems.
IMPORTANT: WHEN REPLACING THE HYDRAULIC
FLUID FILTER, PRE-FILL WITH OIL (SAE 20W50 API
SL) BEFORE INSTALLING. PRE-FILLING THE FILTER
WITH OIL WILL REDUCE OR POSSIBLY ELIMINATE
THE NEED TO PURGE THE SYSTEM OF ENTRAPPED
AIR
1. Locate hydraulic reservoir underneath operator's
seat. After thoroughly cleaning the area around the top
of the reservoir, remove filler cap. Bring fluid to proper
level (1 ½" below the top of the filler neck). With
engine off, add SAE 20W50 automotive oil. See Figure
4.6.
2. Open pressure relief valve on hydraulic pump, turn-
ing counter clockwise 2 full turns. See Figure 3.3.
3. Carefully raise the rear of the machine so the
wheels are off of the ground. Securely block the
machine to prevent it from falling.
4. While seated in the operator's position, start the
engine. Place engine speed control in FAST position.
5. Release parking brake and move motion control
levers out of the neutral lock position.
6. Slowly move motion control levers to the full for-
ward and then to the full reward positions. Repeat this
process 6 times.
7. Stop engine and wait for all rotation to stop before
leaving the operator's position.
8. Close pressure relief valve on hydraulic pump, turn-
ing clockwise. Tighten snuggly.
9. With pressure relief valve closed, repeat Steps 4
thru 7.
10. Remove blocks and lower rear of machine.
11. Check fluid level in reservoir. Add SAE 20W50
automotive oil as required to bring fluid level to 1-½"
from top of filler neck. Do Not over fill.
12. Install and tighten filler cap.
27
TROUBLESHOOTING
PROBLEM
Starter Will Not
Crank Engine
PROBABLE CAUSE
1. Battery dead.
CORRECTIVE ACTION
1. Service battery.
2. Replace fuse.
3. Clean and check connections for good contact.
4. Contact authorized SNAPPER dealer.
2. Blown fuse.
3. Electrical connections loose or corroded.
4. Defective ignition switch.
Engine Will
Not Start
1. Blade engagement switch in the "ON" position. 1. Move blade engagement switch to "OFF".
2. Park brake not set or Operator not seated.
3. Motion Controls not in Neutral Lock Position.
4. Fuel tank empty.
2. Set park brake and Operator in Operator Seat.
3. Place Motion Controls in Neutral Lock Position.
4. Fill fuel tank with fresh fuel or switch tanks.
5. Move choke control to "CHOKE" position.
6. Place spark plug wire onto spark plug.
7. Service battery.
5. Engine needs choking.
6. Spark plug wire disconnected.
7. Battery weak or dead.
8. Faulty parking brake, blade or ignition switch.
8. Contact authorized SNAPPER dealer.
Engine Stalls
After Running
1. Operator not in seat.
2. Choke control in the "CHOKE" position.
3. Fuel tank empty.
4. Engine air pre-cleaner and or air cleaner dirty.
5. Spark plug defective or gap set improperly.
6. Fuel filter stopped up.
1. Sit in operator's seat.
2. Move choke control to "OFF" position.
3. Fill with fuel to proper level or switch tanks.
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.
Engine Loses Power 1. Excessive load on engine.
2. Engine air pre-cleaner or air cleaner dirty.
1. Lessen load.
2. Clean or replace filters.
3. Engine oil level low.
4. Engine cooling fins & air intake screen exces-
3. Fill with engine oil to proper level.
4. Clean cooling fins, air intake screen of all debris.
sively dirty.
5. Spark plug faulty.
5. Service spark plug.
6. Water, debris or stale fuel in fuel system.
6. Drain and clean fuel system.
Engine Backfires 1. Throttle control set too "FAST".
When Turned To
"STOP"
1. Set throttle control to "SLOW" and allow engine to idle.
Then, turn key to "OFF".
Excessive Vibration 1. Damaged or bent mower blades.
2. Loose blade components.
1. Service mower blade(s).
2. Service and tighten loose parts.
3. Inspect all belts and pulleys.
3. Worn or damaged components.
4. Loose or missing air lift (if equipped).
4. Replace air lifts. Tighten to proper torque.
(Trouble Shooting Continued on Next Page)
28
TROUBLESHOOTING
PROBLEM
PROBABLE CAUSE
CORRECTIVE ACTION
Machine Will Not Move 1. Motion Control Levers in the neutral "N" position. 1. Move Motion Controls to desired speed position.
2. Hydro. Pumps in roll release setting.
3. Low transmission hydraulic oil level.
4. Parking Brake engaged.
2. Tighten relief valves.
Loss Of Traction
3. Bring hydraulic oil to proper level.
4. Move parking brake to disengaged position.
5. Replace traction drive belt.
5. Traction drive belt requires replacement.
Blade(s) Not Cutting 1. Blade engagement switch in the "OFF" position. 1. Move blade switch to the "ON" position.
2. Mower belt slipping.
2. Adjust or replace mower belt.
3. Electric clutch not functioning.
3. Contact authorized SNAPPER dealer.
Cutting Grass
Improperly
1. Uneven tire pressure.
2. Cutting height too low or high.
3. Engine speed too slow.
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.
1. Bring to proper pressure.
2. Adjust cutting height.
3. Move throttle control to "FAST" position.
4. Move joystick to a slower speed.
5. Adjust side to side level.
6. Adjust front to rear level.
7. Sharpen cutting edges or replace blade(s).
8. Adjust or replace blade belt.
9. Adjust to proper specifications.
10. Contact authorized SNAPPER dealer.
9. Check electric clutch.
10. Check gearbox for damage.
Poor Grass Discharge 1. Engine speed too slow.
2. Forward speed too fast.
1. Move throttle control to "FAST" position.
2. Move joystick to a slower speed.
3. Mow when grass is dry.
3. Grass is wet.
4. Excessively worn or damaged blade(s).
4. Service mower blade(s).
5. Build up of grass clippings and debris under deck. 5. Clean deck.
6. Improper blade(s) installed on deck.
7. Blade(s) installed improperly on deck.
6. Install proper SNAPPER blades.
7. Install blades properly.
Battery Will Not Charge 1. Poor cable connections.
1. Clean cables and battery terminals.
2. Replace with new battery.
2. Bad battery cell(s).
3. Faulty alternator.
3. Contact engine manufacturer's dealer.
29
SERVICE SCHEDULE
ITEM
SERVICE
PERFORMED
REF. NUMBER EACH
USE
5
HRS
25
HRS
50
HRS
100
EACH
HRS SEASON
Engine Oil
Check Oil Level
Page 9
X
Initial Oil Change
Periodic Oil Change
Clean or Replace
Replace
Page 14
X
Page 15
X*
Air Cleaner
Spark Plug
Fuel Filter
Engine Manual
Engine Manual
Page 17
X**
X
X
Replace
Engine Cooling
System
Battery
Clean Shroud & Fins
Charge Battery
Testing Battery
Check Pressures
Check for Wear and
Tension
Check for wear,
Damage & Replacement
Clean Debris
Accumulation
Engine Manual &
Page 16
Page 25
X**
X
Page 26
Page 9
X
Tires
X
X
X
X
Drive Belts
Mower Blades
Mower Deck
Page 15
Page 24
Page 15
Pages 15-16
Page 16
Page 18
Page 13
X
X
X
X
X
Lubrication Points Grease or Oil
X
X
Hydrostatic Trans. Check Oil Level
Oil
Hydrostatic Trans. Replace Filter
Filter
Safety Interlock
System
X
First Change at 200 Hours.
Thereafter every 500 Hours.
Check Periodically during Operating Season
Check System for
Proper Function
* Change oil every 25 hours when operating under heavy load or high temperatures.
** Clean more often under dusty conditions or when air debris is present.
MAINTENANCE/REPLACEMENT PARTS
Mower Blades
Hydraulic Filter
Mower Drive Belt
Traction Drive Belt
Battery
7075771 (3)
1719168
7011219
7075109
7075911
30
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 (except for taxes where applicable),
any part or parts found upon examination by the factory at McDonough, Georgia, to be defective in material or workman-
ship or both.
All transportation costs incurred by the purchaser in submitting material to an authorized SNAPPER dealer for replace-
ment 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 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 pur-
chase date. SNAPPER will not be responsible for any installation cost incurred. The battery warranty only covers origi-
nal 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 the purchase date for the original purchaser's commercial, rental, or other non-residential use, and
up to the extent permitted by law 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 lim-
itation 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 ASSOCIAT-
ED 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
31
PRIMARY MAINTENANCE
32
PRIMARY MAINTENANCE
33
PRIMARY MAINTENANCE
34
PRIMARY MAINTENANCE
35
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 war-
ranty coverage. Please mail your product registration card to:
Snapper at P.O. Box 1379, 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.
36
NOTES
37
NOTES
38
NOTES
39
MID-MOUNT
ZERO TURNING
HYDRO DRIVE
SERIES 1
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, CHEM-
ICALS KNOWN TO THE STATE OF CALIFORNIA TO CAUSE CANCER AND BIRTH DEFECTS OR OTHER REPRO-
DUCTIVE 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 © 2005
SNAPPER - A DIVISION OF SIMPLICITY MFG., INC.
ALL RIGHTS RESERVED
MANUAL No. 700079 (I.R. 5/27/2005)
40
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