Safety Instructions & Operator’s Manual for
MID MOUNT Z-RIDER
ZERO TURNING
HYDRO DRIVE
SERIES 2
MODELS
NZMJ23522KH
NZMJ25612KH
MODEL NUMBER EXPLANATION
N
Z
MJ 23 52
2
KH
MODEL DESIGNATION
DRIVE SYSTEM TYPE
MOWER ORIENTATION
ENGINE HP *
ENGINE TYPE
SERIES DESIGNATION
MOWER DECK SIZE
POWER UNIT
N – Model Designation
Z – Zero Turning – Hydro Drive
M – Mid Mount Mower
J – Joystick Control
23 – Engine Horse Power
25 – Engine Horse Power
52 – 52” Mower Width
61 – 61” Mower Width
2 – Series Designation
KH – Kohler Engine
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
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. 7-4417 (Rev. 1 - 9/3/04)
IMPORTANT SAFETY INSTRUCTIONS
PREPARATION
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.
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
(Continued From Previous Page)
2. Only mature, responsible persons shall operate or
service the machine and only after proper
instruction and training. The owner is responsible
for training the operators. Further, the
owner/operator can prevent and/or is responsible
for accidents or injuries occurring to themselves,
other people or property.
3. Data indicates that operators age 60 and above, are
involved in a large percentage of mower-related
injuries. These operators should evaluate their
ability to operate the mower safely enough to
protect themselves and others from serious injury.
4. Handle fuel with extra care. Fuels are flammable
and vapors are explosive. Use only an approved
fuel container. DO NOT remove fuel cap or add
fuel with engine running. Add or drain fuel
outdoors only with engine stopped and cool.
Clean spilled fuel from machine. DO NOT
smoke.
5. Practice operation of machine with BLADES
OFF to learn controls and develop skills.
6. Check the area to be mowed and remove all
objects such as toys, wire, rocks, limbs and
other objects that could cause injury if thrown
by blades or interfere with mowing.
7. Evaluate the terrain to determine what
accessories and attachments are needed to
properly and safely perform the job. Only use
accessories and attachments approved by
SNAPPER.
10. If fuel is spilled on clothing, change clothing
immediately.
8. Keep people and pets out of mowing area.
Immediately, STOP blades, STOP engine, and
STOP machine if anyone enters the area.
9. DO NOT operate machine unless all shields,
deflectors, switches, blade controls and other
safety devices are in place and functioning
properly.
11. DO NOT overfill a fuel tank. Replace fuel cap
and tighten securely.
OPERATION
1. Mount and dismount machine from left side.
2. Start engine from operator's seat. Make sure
blades are OFF and parking brake is set. Use
seat belts if provided.
10. Make sure all safety decals are clearly legible.
Replace if damaged.
3. DO NOT leave machine with engine running.
Stop engine. Stop blades. Set brake. Remove
key.
4. DO NOT operate machine unless properly
seated with feet on foot rests or pedal(s).
5. DO NOT operate machine while under the
influence of alcohol or drugs.
6. STOP MACHINE on level ground, lower deck,
engage parking brake and make sure engine
and blades have stopped before removing
grass catcher or unclogging mower to prevent
injury to hands or feet.
7. Blades must be OFF except when cutting grass.
Set blades in highest position when mowing
over rough ground.
11. Protect yourself when mowing and wear
appropriate clothing including safety glasses,
long pants, ear protection, hardhat and
substantial footwear with good traction. Long
hair, loose clothing or jewelry may get tangled
in moving parts.
12. Know how to STOP blades and engine quickly
in preparation for emergencies.
13. Use extra care when loading or unloading the
machine into a trailer or truck.
14. 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.
3
IMPORTANT SAFETY INSTRUCTIONS
OPERATION
(Continued From Previous Page)
MAINTENANCE
(Continued From Previous Column)
8. 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.
9. DO NOT operate machine without entire grass
catcher or guards in place. DO NOT point
discharge at people, passing cars, windows or
doors.
10. Slow down before turning.
11. Watch out for traffic when near or crossing
roadways.
12. STOP engine immediately after striking an
object or if an abnormal vibration occurs.
Remove key. Remove and disconnect the
sparkplug wire. Make necessary repairs before
resuming operation.
13. Mow only in daylight or with good artificial light.
14. Move motion control levers SLOWLY to
maintain control during speed and directional
changes.
6. Always provide adequate ventilation when
running engine. Engine exhaust gases contain
carbon monoxide, an odorless and deadly
poison.
7. Disconnect
battery
before
performing
maintenance or service. Cranking engine could
cause injury. Disconnect negative (black) cable
from battery first and positive (red) cable last.
Reconnect positive first and negative last. Charge
battery in an open, well ventilated area away from
spark and flames. Unplug charger before
connecting or disconnecting from battery. Wear
protective clothing and insulated gloves.
8. Park machine on level ground. DO NOT work
under machine without safety blocks.
9. Service engine and clean, adjust or repair only
when engine and blades are 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. DO NOT make adjustments
with the engine running.
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. Never straighten
or weld blades, only replace them.
13. DO NOT test for spark by grounding spark plug
next to spark plug hole; spark plug could ignite
gas exiting engine.
15. Exercise CAUTION when pulling loads. DO NOT
pull loads greater than 300 pounds. Avoid jack
knifing. DO NOT turn sharply. Attach loads to
approved
hitch
point
only
following
manufacturer’s instructions.
16. On slopes, the weight of towed equipment may
cause loss of traction and loss of control. When
towing travel slowly and allow extra distance to
stop.
17. DO NOT operate engine in enclosed areas.
Engine
exhaust
gases
contain
carbon
14. Carefully release pressure from components with
stored energy.
monoxide, an odorless and deadly poison.
15. Have machine serviced by an authorized
SNAPPER dealer at least once a year and have
the dealer install any new safety devices. Never
allow untrained personnel to service machine.
16. Use only genuine SNAPPER replacement parts to
assure that original standards are maintained.
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.
Shut off fuel (when equipped with valve) while
storing or transporting machine.
2. Clean grass and debris from engine, mufflers,
drives and cutting units to help prevent
overheating and fires. Clean up fuel, oil and
excess grease.
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.
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
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 ...................................................................................16-17
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................................................................................................ 23
Mower Drive Belt Removal & Replacement........................................................... 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
Mower Spindle Bearing Replacement.................................................................... 27
Hydraulic System, Purging...................................................................................... 28
TROUBLESHOOTING ................................................................................................29-30
SERVICE SCHEDULE ..................................................................................................... 31
Maintenance/Replacement Parts ....................................................................... 31
WARRANTY ..................................................................................................................... 32
PRIMARY MAINTENANCE.........................................................................................33-36
PRODUCT REGISTRATION FORM ................................................................................ 37
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
CHOKE
BLADE
KEY
CONTROL
SWITCH
SWITCH
HOUR
METER
ENGINE SPEED
TROL
ENGINE
CHOKE
CONTROL
SPEED
MOTION CONTROL
LEVER
OPERATOR’S
SEAT
LEFT HAND
FUEL TANK
RIGHT HAND
FUEL TANK
PARKING
BRAKE LEVER
DECK LIFT
LEVER
CONTROL PANEL
(SEE INSET)
DECK LIFT PEDAL
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
1.1 INTRODUCTION
1.2 NOMENCLATURE
The nomenclature information above shows the
essential parts of the SNAPPER MID MOUNT Z-
RIDER. 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.
This manual has been prepared for the operator’s of
the SNAPPER MID MOUNT Z-RIDER. 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
MID MOUNT Z-RIDER and its attachments before
operating. SNAPPER recommends returning the MID
MOUNT Z-RIDER 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 – SAFETY MESSAGES AND SYMBOLS
FORWARD
REVERSE
DANGER ! ROTATING PARTS
KEEP AWAY FROM MOVING PARTS
MOTION CONTROL LEVER (JOYSTICK)
MULTI-DIRECTIONAL
PARKING BRAKE LEVER OPERATION
WEAR HEARING PROTECTION
WARNING ! AVOID SERIOUS INJURY OR DEATH
STARTING, OPERATION & STOPPING OF MACHINE
7
Section 2 – SAFETY MESSAGES AND SYMBOLS
RUN
OFF/STOP
START
PULL SWITCH “UP” TO
ENGAGE BLADES
PUSH SWITCH “DOWN” TO
DISENGAGE BLADES
KEYSWITCH
HOUR METER
FAST
SLOW
CONTROL PANEL IDENTIFICATION
CHOKE
CONTROL
ENGINE
SPEED
CONTROL
DANGER! ROTATING BLADES
KEEP CHILDREN AND OTHERS OUT OF MOWING AREA
STOP
RUN
START
DANGER! ROTATING BLADES
IGNITION SWITCH
8
Section 3 - OPERATING INSTRUCTIONS
3.1 PRE-START CHECK LIST
3.1.8. Place mower in desired cutting height
Make the following checks and perform the service
required before each start-up.
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.
setting. Grasp deck lift lever and depress release
latch located underneath the lever. Move lever to
desired cutting height setting and release latch.
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.
DECK LIFT
LEVER
SAFE LEVEL
AREA
RELEASE
LATCH
FIGURE 3.1
3.1.4. Check Blade Switch to insure it works freely.
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.
FOOT
ASSIST PEDAL
INSERT STOP PIN
INTO HOLES FOR
DESIRED CUTTING
HEIGHT
BLADE SWITCH
FIGURE 3.2
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. Refer to engine owner’s manual for
fuel specifications.
3.1.7. Adjust position of operator’s seat. The seat
is mounted on slides. Locate latch lever beneath
the seat. Move lever towards the left and slide seat
to the desired position. Release latch.
FIGURE 3.3
IMPORTANT: This machine is equipped with
hydrostatic drive. The direction of motion and the
speed of motion are controlled by the motion control
lever (joystick). A small movement of this control 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
setting and in an open area away from obstacles.
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 3.3.
3.2 STARTING & STOPPING – ENGINE, BLADES,
PARKING BRAKE
This machine is equipped with dual hydraulic pumps and
wheel drive motors. Each pump is controlled by a single
motion control lever or joystick. This single control lever
(joystick) controls the direction of motion, Forward and
Reverse, and the speed of motion. Move the joystick
forward to propel the machine forward. Move the control
rearward to propel the machine in reverse. The speed of
motion is continuously variable from neutral (zero) to
maximum. Moving the joystick farther from the neutral
position will cause the speed of motion to increase. To
turn, move the joystick towards the side you want to turn
to. DO NOT make sudden changes in speed or
direction. Always slow machine motion before turning.
To stop the motion of the machine, bring the joystick
back to the neutral position. Engage 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, the motion control lever is
in the neutral position with the parking brake
engaged.
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 Figures 3.2 and 3.7.
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.
ROTATE RELIEF VALVE
COUNTERCLOCKWISE
TO RELIEVE PRESSURE
ENGINE
SPEED
CHOKE
KEY
CONTROL
SWITCH
CONTROL
RELIEF VALVE
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.
SHOWN FROM OPERATOR’S VIEW POINT
FIGURE 3.5
10
Section 3 - OPERATING INSTRUCTIONS
3.2.1. STARTING ENGINE
3.2.5. PARKING BRAKE
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.
1. Engage parking brake by pulling the parking brake
lever back to the engaged position. See Figure 3.7.
NOTE: To engage the parking brake, the joystick
control must first be placed in the center neutral
position.
2 Release parking brake by pushing parking brake
lever forward to the released position. See Figure 3.8.
3.2.2. STOPPING ENGINE
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.
KEYSWITCH
PARKING BRAKE
LEVER IN ENGAGED
“ON” POSITION
SHOWN FROM OPERATOR’S VIEW POINT
FIGURE 3.6
WARNING
FIGURE 3.7
DO NOT operate blades in reverse. STOP blades.
LOOK and SEE behind and down for children, pets,
and hazards before and while backing.
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.
PARKING BRAKE
LEVER IN RELEASED
“OFF” POSITION
3.2.4. STOPPING MOWER BLADES
1. Push Blade Switch down to “OFF” position to
disengage or turn “OFF” the blades.
2. Move engine speed control to the Turtle
“SLOW” position. Turn key to “STOP” position.
WARNING
FIGURE 3.8
Once blades are disengaged, they should come to a
complete stop in 7 seconds. If the blades continue
to rotate after 7 seconds, the electric clutch should
be checked. Adjustment or replacement 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 7 seconds.
WARNING
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
1. Adjust cutting height, as desired, to any position,
using deck lift lever. The release latch should be
pulled up when lowering the deck. When raising the
deck, the release latch does not have to be pulled
up. 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 3.9 & 3.10.
2. If a specific deck height is desired each time the
machine is used, insert the stop pin to desired
cutting height. See Figure 3.11.
6 HOLE POSITIONS
FOR STOP PIN
NOTE: The engine does not have to be running to adjust
cutting height.
DECK LIFT
LEVER SHOWN IN
HIGH CUTTING
HEIGHT
FIGURE 3.11
3.4 OPERATION- MOTION CONTROLS
3.4.1. DRIVING MACHINE
1. Start engine. Release parking brake.
2. Move motion control lever gently and with
caution in desired direction.
FORWARD - Move control lever forward.
REVERSE - Move control lever rearward.
LEFT TURN - Move control towards left.
RIGHT TURN – Move control towards right.
ZERO RADIUS TURN - Move control diagonally
from neutral in desired direction.
PULL RELEASE
LATCH UP WHEN
CHANGING THE
DECK HEIGHT
FIGURE 3.9
DECK LIFT LEVER
SHOWN IN LOW
CUTTING HEIGHT
POSITION
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.
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.
DECK LIFT
ASSIST PEDAL
FIGURE 3.10
12
Section 3 - OPERATING INSTRUCTIONS
3.4.2. STOPPING MACHINE
3.5 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
1. Return motion control lever to the center
neutral position.
IMPORTANT: Operator must use hand assistance
to bring the motion control lever to the neutral
position
periodically during the operating season. Contact your
authorized Snapper dealer if you have questions.
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.
ENGINE MUST NOT START IF:
1. Parking Brake disengaged OR,
2. Blade Switch in the “ON” blades engaged
position.
ENGINE SHOULD START IF:
ENGAGE
PARKING
BRAKE
1. Blade Switch in the “OFF” blades disengaged
position AND,
2. Motion Control Lever in neutral position AND,
3. Parking Brake engaged.
FIGURE 3.12
2. Engage parking brake.
NOTE: The operator should be properly seated
before attempting to start engine.
ENGINE MUST BEGIN TO STOP IF:
1. Operator rises off of seat with Blade Switch in
“ON” blades engaged position OR,
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. Operator rises off of seat with Parking Brake
disengaged.
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 and the parking brake engaged
before engine can be restarted. Engine and blades
must come to a complete stop within 7 seconds after
the operator rises off the seat or the blade switch is
moved to the “OFF” position.
WARNING
DO NOT park the machine on slopes. DO NOT leave
machine with engine running. Stop engine. Stop
blades. Engage parking brake. Remove key.
13
Section 4 - MAINTENANCE
4.1 INTRODUCTION
5. Fill engine crankcase with new oil. Refer to your
engine owner’s manual for oil specifications.
6. Change engine oil filter at every oil change.
Refer to your engine owner’s manual for service
instructions.
To retain the quality of the SNAPPER mower, 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 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 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.
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
4.2 SERVICE - AFTER FIRST 5 HOURS
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
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.
damage. Refer to Section
“MOWER BLADE
REPLACEMENT” for proper blade inspection and
service procedures.
4. Check torque of blade mounting bolts. As
necessary, 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”.
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.
6. Check blade for straightness.
CHECK BLADE
MOUNTING BOLTS -
TORQUE SHOULD BE
70 TO 80 FT. LBS.
ROTATE PLUG COUNTER CLOCKWISE
THEN PULL OUT TO DRAIN OIL
FIGURE 4.1
FIGURE 4.2
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.
4.
14
Section 4 - MAINTENANCE
4.2.3. CHECK MOWER DRIVE BELT
1. Lower deck to lowest setting.
2. Remove footrest. See Figure 4.3.
3. Removal of footrest will allow access to deck
belt.
4. Check the belt tension. The idler pulleys and
springs provide proper belt tension and require no
adjustments. If belt is frayed, slit, severed or belt
strands exposed, replace belt before operating
mower.
4. Clean Mower Deck
a. Remove key from ignition switch.
b. Remove spark plug wire(s) and secure away
from spark plug(s).
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
accumulation of grass clippings and debris.
e. Clean top of deck, removing all grass clippings
and debris.
5. Mower Blade Spindle - Lubrication
a. Remove footrest.
b. Lubricate with Kendall NLGI No. 2 lithium
grease or equivalent, from a grease gun until
grease purges from vent located on spindle
housing 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
6. Mower Deck Linkage - Lubrication
Lubricate all mower deck linkage pivot points with a
light coat of motor oil.
2. Air Filter
Refer to engine owner’s manual for service
instructions.
WARNING
4.3.2. MOWER COMPONENTS
1. Mower Drive Belt
No adjustment required. Replace belt as needed.
2. Mower Blade
Check blade for sharpness, wear, damage, and
torque. Refer to Section “MOWER BLADE
REPLACEMENT”.
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.
3. Mower Deck Levelness
Check mower deck for proper levelness. Adjust as
required. Refer to Section “MOWER DECK
ADJUSTMENT – 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.
4.5 ANNUALLY (END OF EACH SEASON)
Perform all maintenance as described in Section “AFTER
EVERY 25 OPERATING HOURS”. Refer to Section
“Service Schedule”.
4.5.1. ENGINE
Service engine according to engine owner’s manual.
FRONT
WHEEL
HYDRAULIC FLUID
RESERVOIRS
LUBRICATE
BEARINGS
FIGURE 4.5
FIGURE 4.6
2. Hydro Pumps
Check the level of the fluid in both of the fluid reservoirs.
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
viscosity 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 MOWER
DECK IDLER ARMS
Lubricate machine caster wheel shafts, deck lift pivot,
and mower deck idler arms with Kendall NLGI No. 2
lithium grease or equivalent, from a grease gun. See
Figure 4.7.
FIGURE 4.7
4.4 BEFORE OPERATING MACHINE
(Continued on next Page)
1. Clean all dirt and debris from around the two hydraulic
fluid reservoirs. 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.
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 lever to the neutral 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
maintenance 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. IMPORTANT – STORED ENERGY. Relieve
tension on deck lift assist spring by backing off nut
on eyebolt. Failure to relive tension could result in
personal injury. See Figure 4.9.
3. Place a wooden block under the front and rear
edge of the mower deck.
4. 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.
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 prevent fuel spillage or perform filter change when
fuel tank and fuel line are empty.
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.
LOWEST CUTTING
POSITION (ALL THE
WAY FORWARD)
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
CLAMP FUEL LINE
TO PREVENT
SPILLAGE
LOOSEN DECK
LIFT ASSIST
REMOVE
FUEL FILTER
CLAMP FUEL
LINE TO
PREVENT
SPILLAGE
REMOVE LINE
CLAMPS
FIGURE 4.9
FIGURE 4.8
(Continued On Next Page)
17
Section 4 - MAINTENANCE
6. Remove deck drive belt from around deck pulley.
7. Remove bolts and nuts to disconnect both stabilizers
WARNING
DO NOT attempt any maintenance, adjustments or
service with engine running. STOP engine. STOP
blades. Set parking 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.
from mower deck and power unit.
Figure 4.13.
See Figure 4.12 &
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 & BOLTS
DECK
THAT SECURE STABILIZERS
TO THE MOWER DECK.
CHAIN
FIGURE 4.12
DECK HANGER
BRACKET
REMOVE INSIDE NUTS
THAT SECURES CHAIN
TO THE FRONT LIFT ARM
FIGURE 4.10
5. Remove inside nuts that secure chain to rear lift
DECK
arm. See Figure 4.11.
REMOVE NUTS & BOLTS
THAT SECURE STABILIZERS
TO THE POWER UNIT.
STABILIZER
REMOVE INSIDE NUTS THAT
SECURES CHAIN TO THE
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, of which it was
removed. Tighten all nuts and bolts securely.
4.7 HYDRAULIC FLUID FILTERS
IMPORTANT: REFER TO SECTION “HYDRAULIC
SYSTEM PURGING” BEFORE PERFORMING FILTER
MAINTENANCE.
REAR LIFT ARM
CHAIN
The first filter change is recommended at 200 hours.
After the first change, the recommended interval is
every 500 hours. Replace both with approved filters
only (Snapper P/N 27164). Install following
instructions provided with the filter. Add SAE 20W50
oil to bring the level in the reservoirs 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
18
Section 5 - ADJUSTMENTS & REPAIR
DANGER
Exercise EXTREME CAUTION when making this
adjustment, due to close proximity of moving parts.
5.1 NEUTRAL POSITION ADJUSTMENTS
The motion control lever controls the movement
and stopping of the machine. Move the control
lever to the center or neutral position to stop
machine. Engage the parking brake to lock the
control in the neutral position. The machine should
have no movement.
IMPORTANT: The machine must not creep
when the motion control is in the neutral
position and the parking brake is engaged.
REMOVE MOTION
CONTROL LEVER
CONNECTING ROD
1. Turn key to “OFF” position.
HYDRO PUMP
ACTIVATION
ASSEMBLY
2. Move motion control lever to the neutral position
and engage parking brake. Refer to Figure 3.7.
3. Raise both rear wheels off the ground. Secure
machine with safety blocks.
4. Remove cover screen to expose top of hydro
pumps and linkages. See Figure 5.1.
FIGURE 5.2
5. Remove both fans from top of hydro pumps.
6. Disconnect motion lever connecting rods from
hydro pump activation assembly. See Figure 5.2.
REMOVE SCREEN
MOVE ACTIVATION
ASSEMBLY REARWARD
OR FORWARD TO
ACHIEVE NEUTRAL
FIGURE 5.3
FIGURE 5.1
(Continued On Next Page)
7. Turn key to start position and start machine.
Move engine speed control to the Rabbit “FAST”
position
8. With operator properly seated, disengage
parking brake.
9. Both wheels should not have any movement, not
rotating.
10. If wheel(s) are rotating, move activation assembly
forward or rearward to stop rotation of wheel. Repeat
this step for other hydro pump. See Figure 5.3.
11. Stop engine.
19
Section 5 - ADJUSTMENTS & REPAIR
5.1 NEUTRAL POSITION ADJUSTMENTS
(Continued From Previous Page)
5.2 MOWER DECK & COMPONENT ADJUSTMENTS
The leveling procedures for the 61 deck differ from
the 48 and 52 decks. The 61 deck replaces the two
rear eyebolts with slotted brackets, and uses 1 1/4”
leveling blocks in place of the 1” blocks. Follow and
complete each step carefully.
12. Move motion control lever to the neutral position
and engage the parking brake, 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.
5.2.1. MOWER DECK ADJUSTMENT (LEVELNESS)
SIDE to SIDE and FRONT to REAR
Before making deck leveling adjustments, inflate rear
tires to 12 PSI and front tires to 25 PSI. When
adjusted correctly, the deck will be level side to side
within 1/8”, have a low cut setting of approximately 1”
(1 1/4" for 61 deck) and the blades pitched
approximately 3/16” higher at the rear.
HYDRO PUMP
HYDRO
ACTIVATION
PUMP
ASSEMBLY
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
measurement 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
measurement of the blade tips is not within 1/8”,
adjustment should be made.
TIE ROD END
BOLT IS
SHOWN
MISALIGN WITH
ACTIVATION
ASSEMBLY
3. Move deck lift lever and set the mower deck to the
highest cutting position.
4. Relive tension on deck lift assist spring by
loosening nut on eyebolt.
“Removing Deck”.
5. Place 1” blocks (1 1/4" for 61 deck) under the front
and rear edge of the mower deck.
6. Move deck lift lever and set the mower deck to the
lowest cutting position.
Refer to Section
LOOSEN NUT AND
ROTATE TIE ROD END
IN OR OUT TO ALIGN
TIE ROD END
WITH ACTIVATION
6. Loosen the nuts and bolts that secure both front
deck support chains. Adjust chains until tight and
retighten bolts and nuts. Torque to 70 ft. lbs. See
Figure 5.5.
FRONT
LIFT ARM
BOLT IS SHOWN
ALIGNED WITH
HOLE
CHAIN
FIGURE 5.4
DECK HANGER
BRACKET
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.
LOOSEN BOLT AND NUT,
TIGHTEN CHAIN. SECURE
BOLTS AND NUTS
14. Start engine, disengage parking brake, and
check rotation of the rear wheels.
FIGURE 5.5
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
DECK TIMING ROD
NO ADJUSTMENT REQUIRED
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.
5.2.1. MOWER DECK ADJUSTMENT (LEVELNESS)
SIDE to SIDE and FRONT to REAR
7. Loosen the nuts that secure both rear deck
support eyebolts (slotted brackets on 61, See Figure
5.5). Adjust to remove slack from both rear chains.
Tighten nuts securely. See Figure 5.6.
FIGURE 5.7
WARNING
Do not operate this machine if the brakes are not
functioning properly!
5.3 PARKING BRAKE ADJUSTMENT
The parking brake can be adjusted by rotating hex
nut clockwise to increase brake tension. If this
adjustment does not result in proper braking action
contact your authorized SNAPPER dealer for
corrective action. See Figure 5.8.
1. Disengage parking brake. Measure the relaxed
length of the brake spring.
2. Engage parking brake. Length of spring should
decrease 3/8”. Adjustment is required if less than
3/8”.
LOOSEN NUTS
AND POSITION
CHAIN UNTIL
3. Loosen jam nut.
4. Tighten hex nut to compress brake spring 3/8”.
Tighten jam nut to secure the hex nut in place.
Disengage and engage parking brake and recheck
brake spring compression measurement. Repeat
previous steps for other wheel. See Figure 5.8.
FIGURE 5.6
3/8”
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.
COMPRESS
PARKING BRAKE
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
(slotted brackets on 61). Adjust up or down as
required.
10. Reinstall deck lift assist spring. Place deck in
highest cutting position. Tighten nut on eyebolt until
1 1/4” of threads (2 1/4” for 61” decks) protrude
past end of nut. See Figure 4.9.
FIGURE 5.8
11.
21
Section 5 - ADJUSTMENTS & REPAIR
UNHOOK TRACTION
DRIVE IDLER SPRING
REMOVE ANTI-
ROTATION BRACKET
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.
5.3 TRACTION BELT TENSION
The traction drive belt tension does not require
adjustment. If the belts are slipping, they will have to be
replaced.
REMOVE CLUTCH
TO DECK BELT
LOCK NUT
FIGURE 5.10
5.5 BLADE BRAKE/ELECTRIC CLUTCH ADJUSTMENT
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” position the cutting blade(s) are
disengaged. The electric clutch is adjustable. The
blades should stop rotation in 7 seconds or less. If
the electric clutch fails to stop the blades rotation in
7 seconds, adjustment is necessary.
J-BOLT
1. Insert a feeler gauge into the three slots on the
electric clutch.
2. Check gap through all three slots in the side of
the clutch. The gap should be set at .015.
FIGURE 5.9
5.4 TRACTION BELT REPLACEMENT
1. Remove clutch to deck belt. See Figure 5.10
2. Turn lock nut out to the end of J-Bolt, reducing
spring tension. Unhook traction idler spring from bolt
in frame. See Figure 5.9
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
harness.
INSERT FEELER GAUGE.
GAP SHOULD BE .015
5. Remove traction belts from around engine pulley
and hydro pumps.
6. Install new belts 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 J-Bolt.
Tighten jam nut securely. See Figure 5.10.
10. Reinstall electric clutch to deck belt.
ROTATE NUTS
IN OR OUT
TO ACHIEVE
CORRECT GAP
FIGURE 5.11
22
Section 5 - ADJUSTMENTS & REPAIR
5.6 MOWER DRIVE BELT REPLACEMENT
Inspect mower drive belt. Replace belt if it shows
signs of excessive wear, damage and/or is broken.
5.6.1. BELT REMOVAL
1. Remove power unit footrest.
2. The engine to deck belt must be removed before
the deck belt can be removed. Remove engine to
deck belt.
RIGHT
PULLEY
3. Disconnect deck belt tension spring.
4. Remove old deck belt. Note the belt routing. See
Figure 5.12.
DECK
BELT
5.6.2. BELT REPLACEMENT
1. The deck belt must be installed first and the
engine to deck belt installed last.
ELECTRIC
CLUTCH
CENTER
PULLEY
2. Route deck belt around blade pulleys and idler
pulley in the same position as old belt was
removed. See Figure 5.12.
3. Reconnect idler pulley spring.
4. Reinstall engine to deck belt.
5. Reinstall power unit footrest.
ENGINE TO
DECK BELT
LEFT
PULLEY
BELT ROUTING
FIGURE 5.12
23
Section 5 - ADJUSTMENTS & REPAIR
5.7 ENGINE ADJUSTMENTS & REPAIR
Refer to the engine owner’s manual for engine
adjustments and/or repairs.
BLADE
MOUNTING
NUT
5.8 MOWER BLADE REPLACEMENT
5.8.1. 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 5.13.
BLADE
SPACERS
5.8.2. BLADE SHARPENING
1. Remove blade. See Figure 5.14.
2. Inspect condition of blade. See Figure 5.13.
3. If blade is in good condition, sharpen at 22 to 28
degrees. DO NOT sharpen beyond original cutting
edge. See Figure 5.15.
BLADE
4. Check blade balance after sharpening. If
necessary, correct blade balance by grinding the
heavy end of blade.
CONE
WASHER
IMPORTANT: Blade balancing should be performed by
a qualified dealer.
BLADE
MOUNTING
BOLT
5. Reinstall blade. See Figure 5.14. Torque blade
mounting bolts to recommended range of 70 to 80
ft. lbs.
FIGURE 5.14
NEW BLADE
BLADE
22º TO 28º
ORIGINAL CUTTING EDGE
WEAR LIMIT
(NOTCH STARTS)
FIGURE 5.15
DANGEROUS CONDITION!
DO NOT USE ON MOWER!
REPLACE WITH NEW BLADE.
FIGURE 5.13
24
Section 5 - ADJUSTMENTS & REPAIR
WARNING
Shield the positive terminal with terminal cover
located on battery harness. This prevents metal from
touching the positive terminal, which could cause
sparks. Cables must be connected to battery
terminals in the proper position. RED (Positive)
cable must go to the ( + ) terminal. BLACK (Negative)
cable must go to the ( - ) terminal. 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.
BLACK (NEGATIVE)
CABLE
RED (POSITIVE) CABLE
5.9 BATTERY
5.9.1. 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,
disconnecting BLACK (Negative) cable first and
RED (Positive) last. Retain mounting bolts and
nuts. See Figure 5.17.
WHEN DISCONNECTING
CABLES, DISCONNECT
NEGATIVE FIRST
TERMINAL COVER MUST
SHIELD POSITIVE
TERMINAL AFTER
INSTALLATION
REMOVE BATTERY RETAINER
FIGURE 5.18
5.9.3. 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.
DATE
2. Place battery in a well-ventilated area on a level,
non-concrete surface.
3. Connect battery charger to battery terminals.
RED to positive (+) terminal and BLACK to
negative (-) terminal.
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
battery.
FIGURE 5.17
5.9.2. BATTERY INSTALLATION
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.
3. Reinstall battery retainer and positive terminal
cover. See Figure 5.17.
WARNING
Keep all sparks, flame and fire away from area when
charging battery.
25
Section 5 - ADJUSTMENTS & REPAIR
5.9.4. BATTERY TESTING
1. Remove battery. Refer to Section “BATTERY
REMOVAL”.
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
DO NOT attempt to service or charge the battery
while it is installed in the machine. DO NOT use
“BOOST” chargers on the battery.
WARNING
Shield the positive terminal with terminal cover
located on battery harness. This prevents metal from
touching the positive terminal, which could cause
sparks. Cables must be connected to battery
terminals in the proper position. RED (Positive)
cable must go to the ( + ) terminal. BLACK (Negative)
cable must go to the ( - ) terminal.
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
5.9.5. 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.
CHARGING”.
Refer to section “BATTERY
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
negative (-) 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
5.10 MOWER SPINDLES (Field Serviceable Spindles)
BEARING REPLACEMENT
IMPORTANT: Spindle housing must be filled with
grease before operating mower. Failure to fill
housing will cause premature bearing failure.
In the event that a spindle bearing requires
replacement, the SNAPPER Field Serviceable
Spindles have been designed so that no special
tools or presses are required.
1. Remove belt. Loosen blade nut and remove.
Allow blade bolt, washer, blade and four spacers
to drop down out of the spindle housing. See
Figure 5.18.
PULLEY
REMOVE NUT
REMOVE BELT
FROM SPINDLE
SPACER
NYLOS SEAL
RETAINING RING
BEARING
SEAL UP
BEARING
REMOVE BLADE
BOLT
SPINDLE
HOUSING
FIGURE 5.18
2. Remove spindle pulley from spindle shaft.
3. Locate circular retaining ring on spindle shaft at
top bearing. Remove retaining ring. Allow spindle
shaft to drop out of housing.
SPACER
4. Top and bottom bearings are now removable.
Pull out on inner race to slide bearing from
housing. See Figure 5.19.
BEARING SEAL
DOWN
BEARING
5. Thoroughly clean all parts removing all old
contaminated grease.
6. Install new bottom bearing first.
SPINDLE
SHAFT
7. NOTE: The bearing is sealed/shielded on one
side only. The bottom bearing must be installed
with the sealed/shielded side DOWN.
8. Insert spindle shaft up through the bottom
bearing. Slide spacer down over spindle shaft.
9. Install new top bearing. Install the top bearing
with the seal/shield UP.
FIGURE 5.19
10. Slide circular retaining ring down spindle shaft
until it fully locks into groove on shaft.
11. Apply a generous amount of general-purpose
grease to the concave side of the nylos seal.
Install the nylos seal with concave greased side
down.
12. Place spindle pulley and spacer on top of
spindle shaft.
13. Reinstall blade bolt, washer, blade and four
spacers. See Figure 5.14
14. Torque blade bolt and nut to 70 to 80 ft. lbs.
15. Pump grease into spindle housing until grease
purges from vent on housing.
16. After the first 5 hours of operation, grease
spindle housing to insure it is full, then every 25
hours.
27
Section 5 - ADJUSTMENTS & REPAIR
5.11 HYDRAULIC SYSTEM, PURGING
After replacing or repairing hydraulic system
components, 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 FILTERS, PRE-FILL BOTH WITH OIL
(SAE 20W50 API SL) BEFORE INSTALLING.
PRE-FILLING THE FILTERS 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,
turning 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.
6. Slowly move motion control lever to the full
forward and then to the full reaward 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,
turning 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.
28
TROUBLESHOOTING
PROBLEM
PROBABLE CAUSE
CORRECTIVE ACTION
1. Battery dead.
1. Service battery.
Starter Will Not Crank
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.
1. Move blade engagement switch to “OFF”.
2. Engage park brake.
1. Blade engagement switch in the “ON” position.
2. Park brake not engaged.
Engine Will Not Start
3. Stale or contaminated fuel.
4. Fuel tank empty.
3. Clean system and fill with fresh clean fuel.
4. Fill fuel tank with fresh fuel.
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.
1. Operator not in seat.
8. Contact authorized SNAPPER dealer.
1. Sit in operator’s seat.
Engine Stalls After
Running
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. Clean free of all debris.
4. Engine air pre-cleaner and or air cleaner dirty.
5. Spark plug defective or gap set improperly.
6. Fuel filter stopped up.
5. Service spark plug.
6. Replace fuel filter.
7. Water, debris or stale fuel in fuel system.
1. Excessive load on engine.
7. Drain and clean fuel system.
1. Lessen load.
Engine Loses Power
2. Engine air pre-cleaner or air cleaner dirty.
3. Engine oil level low.
2. Clean or replace filters.
3. Fill with engine oil to proper level.
4. Engine cooling fins & air intake screen excessively dirty. 4. Clean cooling fins, air intake screen of all debris.
5. Spark plug faulty.
5. Service spark plug.
6. Water, debris or stale fuel in fuel system.
6. Drain and clean fuel system.
1. Throttle control set too “FAST”.
1. Set throttle control to “SLOW” and allow engine
to idle. Then, turn key to “OFF”.
Engine Backfires When
Turned To “STOP”
1. Damaged or bent mower blades.
2. Loose blade components.
1. Service mower blade(s).
Excessive Vibration
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)
29
TROUBLESHOOTING
PROBLEM
PROBABLE CAUSE
CORRECTIVE ACTION
1. Motion Control Lever in the neutral “N” position.
2. Hydro. Pumps in roll release setting.
3. Low transmission hydraulic oil level.
1. Move Motion Control to desired speed position.
2. Tighten relief valves.
3. Bring hydraulic oil to proper level.
Machine Will Not Move
Loss Of Traction
4. Parking Brake engaged.
5. Traction drive belts require replacement.
1. Blade engagement switch in the “OFF” position.
2. Clutch belt slipping.
4. Move parking brake to disengaged position.
5. Replace traction drive belts.
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 throttle 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 level.
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.
11. Check gearbox for damage.
1. Engine speed too slow.
11. Contact authorized SNAPPER dealer.
1. Move throttle 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).
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.
1. Poor cable connections.
2. Bad battery cell(s).
6. Install proper SNAPPER blades.
7. Install blades properly.
1. Clean cables and battery terminals.
2. Replace with new battery.
Battery Will Not Charge
3. Faulty alternator.
3. Contact engine manufacturer’s dealer.
30
SERVICE SCHEDULE
ITEM
SERVICE PERFORMED
REF.
NUMBER
EACH
USE
5
HRS
25
HRS
50
HRS
100
HRS
EACH
SEASON
Check Oil Level
Page 9
Engine Oil
X
Initial Oil Change
Periodic Oil Change
Page 14
Page 15
X
X*
Clean or Replace
Replace
Engine Manual
Engine Manual
Page 17
Air Cleaner
Spark Plug
Fuel Filter
X**
X
X
Replace
Clean Shroud & Fins
Engine Manual
& Page 16
Page 25
Engine Cooling
System
Battery
X**
Charge Battery
Testing Battery
Check Pressures
X
X
X
X
Pages 26
Page 9
Tires
X
X
X
Check For Wear And
Tension
Check For Wear, Damage Pages 24
& Replacement
Clean Debris
Accumulation
Grease or Oil
Page 15
Drive Belts
Mower Blades
Mower Deck
X
X
X
X
Page 15
Pages 15-16
Page 16
Lubrication
Points
Hydrostatic
Trans. Oil
Hydrostatic
Trans. Filter
Safety Interlock
System
X
X
Check Oil Level
Replace Filter
X
Page 18
First Change at 200 Hours.
Thereafter every 500 Hours.
Check Periodically during Operating Season
Check System For
Proper Function
Page 13
* Change oil every 25 hours when operating under heavy load or high temperatures.
**Clean more often under dusty conditions or when air debris is present
MAINTENANCE PARTS
5.9. MAINTENANCE/REPLACEMENT PARTS
MAINTENANCE/REPLACEMENT PARTS
Mower Blades – High Lift
Mower Blades – Medium Lift
Mower Blades – Low Lift
Mower Deck Belt
48” DECK
2-9247 (3)
1-7043 (3)
N.A.
52” DECK
2-9246 (3)
1-7037 (3)
7-3395 (3)
2-9266
61” DECK
2-9251
1-0781
7-3396
2-9268
2-9261
Electric Clutch to Mower Deck Belt
Hydro Pumps, Drive Belts
Battery
7-5083
7-5083
7-5626 (2)
7-5911
7-5623
31
2 YEAR LIMITED WARRANTY
For two (2) years from purchase date for the original purchaser's 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 rental 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
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 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
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 non-rental use, and ninety (90) days
from the purchase date for the original purchaser’s rental 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 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
32
PRIMARY MAINTENANCE
33
PRIMARY MAINTENANCE
34
PRIMARY MAINTENANCE
35
PRIMARY MAINTENANCE
36
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 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.
37
NOTES
38
NOTES
39
Safety Instructions & Operator’s Manual for
MID MOUNT Z-RIDER
ZERO TURNING
HYDRO DRIVE
SERIES 2
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. 7-4417(Rev. 1 - 9/3/04)
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