Safety Instructions & Operator’s Manual for
MID MOUNT Z-RIDER
ZERO TURNING
HYDRO DRIVE
SERIES 1
MODELS
NZM19481KWV
NZM21521KWV
NZM25611KWV
NZM27611KH
MODEL NUMBER EXPLANATION
N
Z
M
19 48
1 KWV
MODEL DESIGNATION
DRIVE SYSTEM TYPE
MOWER ORIENTATION
ENGINE HP
ENGINE TYPE
SERIES DESIGNATION
MOWER DECK SIZE
POWER UNIT
N – Model Designation
19.0 – Engine Horse Power
21.0 -- Engine Horse Power
25.0 – Engine Horse Power
27.0 – Engine Horse Power
48 – 48” Mower Width
1 – Series Designation
KW – Kawasaki Engine
KH – Kohler Engine
V – Over Head Valve
Z – Zero Turning – Hydro Drive
M – Mid Mount Mower
52 – 52” Mower Width
61 – 61” Mower Width
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!
COPYRIGHT © 2003
SNAPPER PRODUCTS INC.
ALL RIGHTS RESERVED
MANUAL No. 7-1762 (I.R. 11/25/03)
IMPORTANT SAFETY INSTRUCTIONS
PREPARATION
(Continued From Previous Page)
SAFE HANDLING OF GASOLINE
To avoid personal injury or property damage, use
2. Only mature, responsible persons shall operate or extreme care in handling gasoline. Gasoline is
service the machine and only after proper instruction extremely flammable and the vapors are explosive
and training. The owner is responsible for training the 1. Extinguish all cigarettes, cigars, pipes and other
operators. Further, the owner/operator can prevent
sources of ignition.
and/or is responsible for accidents or injuries 2. Use only an approved fuel container.
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
3. DO NOT remove fuel cap or add fuel with the
engine running. Allow the engine to cool before
refueling.
injuries. These operators should evaluate their ability 4. DO NOT refuel the machine indoors.
to operate the mower safely enough to protect 5. DO NOT store the machine or fuel container inside
themselves and others from serious injury.
4. Handle fuel with extra care. Fuels are flammable
where there is an open flame, spark or pilot light
such as on a water heater or other appliances.
and vapors are explosive. Use only an approved 6. DO NOT fill fuel containers inside a vehicle or on a
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.
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.
6. Check the area to be mowed and remove all
objects such as toys, wire, rocks, limbs and other 8. DO NOT start gas powered equipment in enclosed
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
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
accessories and attachments approved by 10. If fuel is spilled on clothing, change clothing
SNAPPER. immediately.
8. Keep people and pets out of mowing area. 11. DO NOT overfill a fuel tank. Replace fuel cap and
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.
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.
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.
7. Blades must be OFF except when cutting grass.
Set blades in highest position when mowing over
rough ground.
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 Service & Charging................................................................................25-26
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
HOUR
METER
KEY
SWITCH
BLADE
SWITCH
CHOKE
CONTROL
ENGINE SPEED
CONTROL
MOTION CONTROL
LEVER
OPERATOR’S
SEAT
LEFT HAND
FUEL TANK
RIGHT HAND
FUEL TANK
MOTION CONTROL
LEVER
DECK LIFT
LEVER
PARKING
BRAKE LEVER
CONTROL PANEL
(SEE INSET)
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
DISCHARGE
DEFLECTOR
DECK LIFT PEDAL
FIGURE 1.1
1.1 INTRODUCTION
1.2 NOMENCLATURE
The nomenclature information above, Figure 1.1,
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
DANGER ! ROTATING PARTS
KEEP AWAY FROM MOVING PARTS
MOTION CONTROL LEVER OPERATION
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
FIGURE 3.3
BLADE SWITCH
FIGURE 3.2
IMPORTANT: This machine is equipped with
hydrostatic drive. The direction of motion and the
speed of motion are controlled by the left and right
motion control 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 setting 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. 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. If equipped,
adjust seat suspension for operator weight.
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
This machine is equipped with dual hydrostatic wheel
drive transmissions. Each hydro pump is controlled by a
separate 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 farther 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.
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.
ROTATE RELIEF VALVE
COUNTERCLOCKWISE
TO RELIEVE PRESSURE
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.
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.
MOTION CONTROL LEVERS
SHOWN IN THE NEUTRAL
LOCK POSITION
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: Engaging parking brake prior to placing
motion control levers in the neutral lock position
will cause engine to die. See Figure. 3.7.
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.
PARKING BRAKE
LEVER IN ENGAGED
“ON” POSITION
KEYSWITCH
SHOWN FROM OPERATOR’S VIEW POINT
MOTION
CONTROL
LEVER
FIGURE 3.6
WARNING
DO NOT operate blades in reverse. STOP blades.
LOOK and SEE behind and down for children, pets,
and hazards before and while backing.
LEVER SHOWN IN
THE NEUTRAL
LOCK POSITION
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.
FIGURE 3.7
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.
PARKING BRAKE
LEVER IN RELEASED
“OFF” POSITION
WARNING
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.
FIGURE 3.8
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 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.
RIGHT TURN - Move left control forward or move
right control lever rearward.
ZERO RADIUS TURN - Move one control lever
forward and move the other control lever rearward
simultaneously.
PULL RELEASE
LATCH UP WHEN
CHANGING THE
DECK HEIGHT
FIGURE 3.9
DECK LIFT LEVER
SHOWN IN LOW
CUTTING HEIGHT
POSITION
REARWARD
MOVEMENT
FORWARD
MOVEMENT
DECK LIFT
ASSIST PEDAL
FIGURE 3.10
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
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 neutral
position & the neutral lock position.
IMPORTANT: Operator must use hand assistance
to bring both motion control levers to the neutral
position & the neutral lock 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.
MOTION
CONTROL
LEVER
ENGINE MUST NOT START IF:
1. Motion Control Lever(s) are not in the neutral
lock position OR,
2. Parking Brake disengaged and Operator not
seated in the Operator’s Seat OR,
3. Blade Switch in the “ON” blades engaged
position.
NEUTRAL
LOCK
POSITION
FIGURE 3.13
2. Engage parking brake.
ENGINE SHOULD START IF:
1. Blade Switch in the “OFF” blades disengaged
position AND,
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
DO NOT park the machine on slopes. DO NOT leave
machine with engine running. Stop engine. Stop
blades. Engage parking brake. Remove key.
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,
3. 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 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.
13
Section 4 - MAINTENANCE
4.1 INTRODUCTION
4. Fill engine crankcase with new oil. Refer to your
engine owner’s manual for oil specifications.
5. 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.
6. Check blade for straightness.
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.
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
HYDRAULIC FLUID RESERVOIRS
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.
FRONT
WHEEL
FIGURE 4.6
LUBRICATE
BEARINGS
FIGURE 4.5
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.
LUBRICATE MOWER
DECK IDLER ARMS
LUBRICATE TRACTION
DRIVE IDLER ARM
3. Other Lubrication Points
Lubricate machine caster wheel shafts, traction idler
arm and mower deck idler arms with Kendall NLGI No.
2 lithium grease or equivalent, from a grease gun. See
Figure 4.7.
4.4 BEFORE OPERATING MACHINE
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.
ELECTRIC
CLUTCH
4.5 ANNUALLY (END OF EACH SEASON)
Perform all maintenance as described in Section
“AFTER EVERY 25 OPERATING HOURS”. Refer to
Section “Service Schedule”.
FIGURE 4.7
(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 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.
LEFT SIDE OF
MACHINE
LOWEST CUTTING
POSITION (ALL THE
WAY FORWARD)
POSITION DECK LIFT LEVER IN HIGHEST CUTTING
POSITION. PLACE WOODEN BLOCKS UNDER FRONT
AND REAR OF DECK. LOWER DECK ONTO BLOCKS
LOOSEN DECK
LIFT ASSIST
CLAMP FUEL LINE
TO PREVENT
SPILLAGE
REMOVE
FUEL FILTER
CLAMP FUEL
LINE TO
PREVENT
SPILLAGE
FIGURE 4.9
REMOVE LINE
CLAMPS
(Continued On Next Page)
FIGURE 4.8
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
DECK
5. Remove inside nuts that secure chain to rear lift
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
REMOVE MOTION CONTROL
LEVER CONNECTING ROD
Exercise EXTREME CAUTION when making this
adjustment, due to close proximity of moving parts.
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
position. 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.
1. Turn key to “OFF” position.
2. Move motion control levers to the neutral lock
position. Refer to Figure 3.7.
HYDRO PUMP
ACTIVATION
ASSEMBLY
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
MOVE ACTIVATION
ASSEMBLY REARWARD
OR FORWARD TO
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
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. 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
(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. 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.
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 20 to 30 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 TIGHT
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
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.
3/8”
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
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 belt is slipping, it will have to be
replaced.
JAM NUT
REMOVE CLUTCH
TO DECK BELT
J-BOLT
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.
FIGURE 5.9
1. Insert a feeler gauge into the three slots on the
electric clutch.
5.4 TRACTION BELT REPLACEMENT
1. Remove clutch to deck belt. See Figure 5.10
2. Loosen jam nut on J-Bolt and turn both nuts out to
the end of J-Bolt, reducing spring tension. Unhook
traction idler spring from bolt in frame. See Figure 5.9
3. Remove anti-rotation bracket. See Figure 5.10
4. Disconnect the electric clutch from main wire
harness.
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.
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 both nuts 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 onto
electric clutch.
ROTATE NUTS
IN OR OUT
TO ACHIEVE
CORRECT GAP
FIGURE 5.11
22
Section 5 - ADJUSTMENTS & REPAIR
5.6 TRACKING ADJUSTMENT
5.7 MOWER DRIVE BELT REPLACEMENT
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.
2. Start machine and drive in smooth flat open area
at maximum forward speed.
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.
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.
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. The engine to deck belt must be removed before
the deck belt can be removed. Remove engine to
deck belt.
3. Disconnect deck belt tension spring.
4. Remove old deck belt. Note the belt routing. See
Figure 5.12.
5.7.2. BELT REPLACEMENT
1. The deck belt must be installed first and the
engine to deck belt installed last.
2. Route deck belt around blade pulleys and idler
pulley in the same position as old belt was
removed. See Figure 5.13.
5. Drive machine again. Repeat adjustment as
necessary until machine tracks straight.
3. Reconnect idler pulley spring.
4. Reinstall engine to deck belt.
5. Reinstall power unit footrest.
LEFT SIDE MOTION
CONTROL LEVER
ADJUSTMENT
PLATE
RIGHT
PULLEY
DECK
BELT
ELECTRIC
CLUTCH
CENTER
PULLEY
LOOSEN BOLTS.
SLIDE PLATE TO
MAKE MACHINE
TRACK STRAIGHT
ENGINE TO
DECK BELT
FIGURE 5.12
LEFT
PULLEY
BELT ROUTING
FIGURE 5.13
23
Section 5 - ADJUSTMENTS & REPAIR
5.8 ENGINE ADJUSTMENTS & REPAIR
Refer to the engine owner’s manual for engine
adjustments and/or repairs.
BLADE
MOUNTING
NUT
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.
BLADE
SPACERS
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.
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 5.15. Torque blade
mounting bolts to recommended range of 70 to 80
ft. lbs.
FIGURE 5.15
NEW BLADE
BLADE
22º TO 28º
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
RED (POSITIVE) CABLE
BLACK (NEGATIVE) CABLE
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.
5.10 BATTERY
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,
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
FIGURE 5.18
5.10.3.BATTERY SERVICE
1. Remove battery.
REMOVE BATTERY RETAINER
2. Place battery in a well-ventilated area on a level
surface.
3. Using distilled water, refill cells as required to
bring the fluid to the proper level. Note: if your
machine is equipped with a maintenance free
battery, water will not be required.
4. With cell caps removed, connect battery charger
to battery terminals. RED to positive (+) terminal
and BLACK to negative (-) terminal.
5. Slow charge battery at 1 amp for 10 hours. An
alternative fast charge should be no more than 2.5
amps for four hours.
6. If battery will not accept charge or is partially
charged after 10 hours of charging at 1 amp,
replace with new battery.
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.
3. Reinstall battery retainer and positive terminal
cover. See Figure 5.17.
The electrolyte (acid) produces a highly explosive
gas. Keep all sparks, flame and fire away from area
when charging battery or when handling electrolyte
or battery. Electrolyte (acid) is a highly corrosive
liquid. Wear eye protection. Wash affected areas
immediately after having eye or skin contact with
electrolyte (acid). Battery acid is corrosive. Rinse
empty acid containers with water and mutilate
before discarding. If acid is spilled on battery,
bench, or clothing, etc., Flush with clear water and
neutralize with baking soda.
25
Section 5 - ADJUSTMENTS & REPAIR
Battery Condition Chart
State of Charge
100% Charged w/ Sulfate Stop
100% Charged
75% Charged
50% Charged
Syringe Hydrometer
1.280
Digital Voltmeter
12.80v
Five Ball Hydrometer
Five Balls Floating
Four Balls Floating
Three Balls Floating
Two Balls Floating
One Ball Floating
1.265
1.210
1.160
1.120
12.60v
12.40v
12.10v
11.90v
25% Charged
0% Charged
Less than 1.100
Less than 11.80v
Zero Balls Floating
5.10.4.BATTERY TESTING
WARNING
There are two types of battery tests: Unloaded and
Loaded. The unloaded test is the procedure that
will be discussed. It’s the simplest and most
commonly used. An unloaded test is made on a
battery without discharging current. To perform
unloaded testing, check charge condition using
either a hydrometer or voltmeter.
DO NOT attempt to service or charge the battery
while it is installed in the machine. DO NOT use
“BOOST” chargers on the battery.
5. Slow charge the battery at 1 amp for 10 hours
to bring the battery to full charge.
1. Using a voltmeter, voltage readings appear
instantly to show the state of charge. Remember
to hook the positive lead to the battery’s positive
terminal, and the negative lead to the negative
terminal.
2. A hydrometer measures the specific gravity of
each cell. The specific gravity tells the degree of
charge; generally, a specific gravity of about 1.265
to 1.280 indicates full charge. A reading of 1.230
to 1.260 indicates the battery should be charged
before testing. The Battery Condition Chart shows
the charge level as measured by syringe float
hydrometer, digital voltmeter and five-ball
hydrometer.
6. After charging, check level of electrolyte and
add as needed to bring to proper level
7. Reinstall cell caps.
8. Install battery into power unit.
9. Connect positive (+) cable (red) first, from
wiring harness to the positive terminal (+) on
battery using bolt and nut provided in hardware
bag. Connect negative (-) cable (black) last, to
negative terminal (-) on battery using bolt and nut.
Apply a small amount of grease over terminals to
prevent corrosion.
10. Install battery retainer and positive terminal
cover.
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. Remove battery cell caps. Fill cells as required
with electrolyte (purchased separately) to proper
level. Filling battery with electrolyte will bring the
battery to 80% charged state.
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.
4. With cell caps removed, connect battery
charger to battery terminals; RED to positive (+)
and BLACK to negative (-) terminal.
IMPORTANT: DO NOT place anything in battery other
than specified electrolyte.
WARNING
DO NOT OVERFILL!
26
Section 5 - ADJUSTMENTS & REPAIR
5.11 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 5.19.
PULLEY
REMOVE NUT
REMOVE BELT
FROM SPINDLE
SPACER
NYLOS SEAL
RETAINING RING
BEARING
SEAL UP
BEARING
REMOVE BLADE
BOLT
SPINDLE
HOUSING
FIGURE 5.19
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 5.20.
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 5.20
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 5.15
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
5.12 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 and move motion
control levers out of the neutral lock position.
6. Slowly move motion control levers to the full
forward 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,
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. Set park brake and Operator in Operator Seat.
3. Place Motion Controls in Neutral Lock Position.
4. Fill fuel tank with fresh fuel.
1. Blade engagement switch in the “ON” position.
2. Park brake not set or Operator not seated.
3. Motion Controls not in Neutral Lock Position.
4. Fuel tank empty.
Engine Will Not Start
5. Engine needs choking.
5. Move choke control to “CHOKE” position.
6. Place spark plug wire onto spark plug.
7. Service battery.
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. Engine air pre-cleaner and or air cleaner dirty.
5. Spark plug defective or gap set improperly.
6. Fuel filter stopped up.
4. Clean free of all debris.
5. Service spark plug.
6. Replace fuel filter.
7. Water, debris or stale fuel in fuel system.
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 Levers in the neutral “N” position.
2. Hydro. Pumps in roll release setting.
1. Move Motion Controls to desired speed
2. Tighten relief valves.
Machine Will Not Move
Loss Of Traction
3. Low transmission hydraulic oil level.
3. Bring hydraulic oil to proper level.
4. Parking Brake engaged.
5. Traction drive belt requires replacement.
1. Blade engagement switch in the “OFF” position.
2. Clutch belt slipping.
4. Move parking brake to disengaged position.
5. Replace traction drive belt.
1. Move blade switch to the “ON” position.
2. Replace clutch belt.
Blade(s) Not Cutting
3. Mower belt slipping.
3. Replace mower belt.
4. Electric clutch not functioning.
1. Uneven tire pressure.
4. Contact authorized SNAPPER dealer.
1. Bring to proper pressure.
Cutting Grass
Improperly
2. Cutting height too low or high.
3. Engine speed too slow.
2. Adjust cutting height.
3. Move 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**
Check Electrolyte
Charge Battery
X
X
X
Page 25
Pages 26
Page 9
Testing Battery
X
X
X
Check Pressures
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 Belt
Battery
7-5083
7-5083
7-5626
3-5610
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
NOTES
40
Safety Instructions & Operator’s Manual for
MID MOUNT Z-RIDER
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,
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 © 2003
SNAPPER PRODUCTS INC.
ALL RIGHTS RESERVED
MANUAL No. 7-1762 (I.R. 11/25/03)
41
|