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
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