Snapper 381451HBVE User Manual REAR ENGINE RIDING MOWER Manuals And Guides L0807731

SNAPPER Lawn, Riding Mower Rear Engine Manual L0807731 SNAPPER Lawn, Riding Mower Rear Engine Owner's Manual, SNAPPER Lawn, Riding Mower Rear Engine installation guides

User Manual: Snapper 381451HBVE 381451HBVE SNAPPER REAR ENGINE RIDING MOWER - Manuals and Guides View the owners manual for your SNAPPER REAR ENGINE RIDING MOWER #381451HBVE. Home:Lawn & Garden Parts:Snapper Parts:Snapper REAR ENGINE RIDING MOWER Manual

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Safety Instructions

& Operator's Manual for

REAR ENGINE RIDING MOWER
HYDRO DRIVE
SERIES 1
MODEL
381451HBVE

MODEL

NUMBER

13811,
CUTTING WIDTH
ENGINE HP
SERIES DESIGNATION
DRIVE SYSTEM

38 - 38" Cutting Deck
145- 14.5 HP Engine
1 - Series Designation

EXPLANATION

i |
ENGINE OPTIONS
ENGINE TYPE
ENGINE MODEL
H B VE-

Hydrostatic Drive System
Briggs Engine
Over Head Valve
Electric Start

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 & 3. 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!

SNAPPER, McDonough,
GA.. 30253

U.S.A.

SNAPPER INC.
ALL RIGHTS RESERVED

MANUAL No. 7-2214 (REV. 3, 8/29/01)

IMPORTANT

SAFETY INSTRUCTIONS

WARNING: This powerful cutting machine is capable of amputating hands and feet and can throw objects that
can cause injury and damage! Failure to comply with the following SAFETY instructions could result in serious
injury or death to the operator or other persons. The owner of the machine must understand these instructions
and must allow only persons who understand these instructions to operate machine. Each person operating the
machine must be of sound mind and body and must not be under the influence of any substance, which might
impair vision, dexterity or judgment. If you have any questions pertaining to your machine which your dealer
cannot answer to your satisfaction, call or write the Customer Service Department at SNAPPER, McDonough,
Georgia 30253. Phone: (1-800-935-2967).

PROTECTION

FOR CHILDREN

Tragic accidents can occur if the operator is not alert
to the presence of children. Children are often
attracted to the machine and the mowing activity.
Never assume that children will remain where you last
saw them.
1. KEEP children out of the mowing area and under
the watchful care of a responsible adult.
2. DO NOT allow children in yard when machine is
operated (even with the blade OFF).
3. DO NOT allow children or others to ride on
machine or on attachments (even with the blades
OFF). They may fall and be seriously injured.
4. DO NOT allow pre-teenage children to operate
machine.
5. ALLOW only responsible adults & teenagers with
mature judgment under close adult supervision to
operate machine.
6. DO NOT operate blades in reverse. STOP BLADES.
LOOK and SEE behind and down for children, pets
and hazards before and while backing.
7. USE EXTRA CARE when approaching
blind
corners, shrubs, trees, or other objects that may
obscure vision.

PROTECTION

AGAINST

DO NOT put your foot
stabilize the machine.

on the ground

to try to

10. DO NOT operate machine on wet grass. Reduced
traction could cause sliding.
11. DO NOT operate machine under any condition
where traction, steering or stability is doubtful.

PREPARATION

TIPOVERS

Slopes are a major factor related to loss-of-control
and tip-over accidents, which can result in severe
injury or death. All slopes require extra CAUTION. If
you cannot back up the slope or if you feel uneasy on
the slope, DO NOT mow it. Use extra care with grass
catchers or other attachments;
these affect the
handling and the stability of the machine.
1. DO NOT operate machine on slopes exceeding 15
degrees (27% grade).
2. Exercise EXTREME CAUTION on slopes above 10
degrees (18% grade). Turn blades OFF when
traveling uphill. Use a slow speed and avoid
sudden or sharp turns.
3. DO NOT operate machine back and forth across
face of slopes. Operate up and down. Practice on
slopes with blades off.
4. AVOID uphill starts. If machine stops going uphill
or tires lose traction, turn blades OFF and back
slowly down the slope.

TIPOVERS

(Continued From Previous Column)
5. STAY ALERT for holes and other hidden hazards.
Tall grass can hide obstacles. Keep away from
ditches,
washouts,
culverts,
fences
and
protruding objects.
6. KEEP A SAFE DISTANCE (at least 3 feet) away
from edge of ditches and other drop offs. The
machine could turn over if an edge caves in.
7. Always begin forward
motion slowly and with
caution.
8. Use weights or a weighted load carrier in accordance
with instructions supplied with a grass catcher. DO
NOT operate machine on slopes exceeding 10
degrees (18% grade) when equipped with grass
catcher.

PROTECTION

AGAINST

2.
3.

5.
6.

Read, understand, and follow
instructions and
warnings in this manual and on the machine,
engine and attachments. Know the controls and
the proper use of the machine before starting.
Only mature, responsible persons shall operate
the machine and only after proper instruction.
Data indicates that operators age 60 and above,
are involved in a large percentage of mowerrelated injuries. These operators should evaluate
their ability to operate the mower safely enough to
protect themselves and others from serious injury.
Handle fuel with extra care. Fuels are flammable
and vapors are explosive. Use only an approved
fuel container. DO NOT remove fuel cap or add
fuel with engine running. Add fuel outdoors only
with engine stopped and cool. Clean spilled fuel
from machine. DO NOT smoke.
Practice operation of machine with BLADES OFF
to learn controls and develop skills.
Check the area to be mowed and remove all
objects such as toys, wire, rocks, limbs and other
objects that could cause injury if thrown by blade
or interfere with mowing.

IMPORTANT

SAFETY INSTRUCTIONS

PREPARATION

OPERATION

(Continued From Previous Page)
7. Keep people and pets out of mowing area.
Immediately STOP blades, STOP engine, and
STOP machine if anyone enters the area.
8. Check shields,
deflectors,
switches,
blade
controls and other safety devices frequently for
proper operation and location.
9. Make sure all safety decals are clearly legible.
Replace if damaged.
10. Protect yourself when mowing and wear safety
glasses, long pants and substantial footwear.
11. Know how to STOP blades and engine quickly
in preparation for emergencies.
12. Use extra care when loading or unloading the
machine into a trailer or truck.
13. Check grass catcher components frequently for
signs of wear or deterioration and replace as
needed to prevent injury from thrown objects
going through weak or worn spots.

(Continued From Previous Column)
14. Exercise CAUTION when pulling loads. Limit loads
to those you can safely control and attach loads to
hitch plate as specified with SNAPPER attachment
instructions.

OPERATION

Mount and dismount machine from left side.

Start engine from operator's seat, if possible.
Make sure blades are OFF and parking brake is
set.
DO NOT leave machine with engine running.
STOP engine, STOP blades, SET brake, and
Remove key before leaving operators position
of any reason.
DO NOT operate machine unless properly
seated with feet on feet rests or pedal(s).
STOP BLADES and ENGINE and make sure
blades have stopped before removing grass
catcher or unclogging mower to prevent loss of
fingers or hand.
Blades must be OFF except when cutting grass.
Set blades in highest position when mowing
over rough ground.
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.
DO NOT operate machine without entire grass
catcher or guards in place. DO NOT point
discharge at people, passing cars, windows or
doors.
Slow down before turning.
Watch out for traffic when near or crossing
roadways.
STOP engine immediately after striking an
obstruction.
Inspect
machine
and
repair
damage before resuming operation.
Operate machine only in daylight or with good
artificial light.
Move joystick
(if equipped)
SLOWLY
to
maintain control during speed and directional
changes.

4.
5.

9.
10.
11.

12.
13.

15. DO NOT operate engine in enclosed areas. Engine
exhaust gases contain carbon monoxide, a deadly
poison.

MAINTENANCE
1.

4.
5.
6.

8.
9.

10.
11.
12.

13.

14.

15.
16.

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.
Keep engine free of grass, leaves or excess grease
to reduce fire hazard and engine overheating.
When draining fuel tank, drain fuel into an approved
container outdoors and away from open flame.
Check brakes frequently; adjust, repair or replace as
needed.
Keep all bolts, nuts and screws properly tight.
Check that all cotter pins are in proper position.
Always provide adequate ventilation when running
engine. Exhaust gases contain carbon monoxide,
an odorless and deadly poison.
Disconnect negative (black) cable from battery
before
performing
maintenance
or
service.
Cranking engine could cause injury.
DO NOT work under machine without safety blocks.
Service engine and make adjustments only when
engine is stopped. Remove spark plug wire(s) from
spark plug(s) and secure wire(s) away from spark
plug(s).
DO NOT change engine governor speed settings or
overspeed engine.
Lubricate machine at intervals specified in manual
to prevent controls from binding.
Mower blades are sharp and can cut. Wrap the
blades or wear heavy leather gloves and use
CAUTION when handling them.
DO NOT test for spark by grounding spark plug
next to spark plug hole; spark plug could ignite gas
exiting engine.
Have machine serviced by an authorized SNAPPER
dealer at least once a year and have the dealer
install any new safety devices.
Use only genuine SNAPPER replacement parts to
assure that original standards are maintained.
If battery is removed, DO NOT operate engine
without insulating Positive + battery cable terminal
with electrical tape, or sparking from battery cables
can result.

TABLE

OF CONTENTS

IMPORTANT SAFETY INSTRUCTIONS
................................................
TABLE OF CONTENTS ............................................................................
SECTION 1 - FAMILIARIZATION
..............................................................
SECTION 2 - OPERATING
INSTRUCTIONS
.......................................
Pre-start Checklist .........................................................................................................
Operators Seat Adjustment ..........................................................................................
Starting & Stopping Engine, Blade & Wheel Drive ................................................
Starting & Stopping Mower Blades .........................................................................
Starting & Stopping Wheel Drive ............................................................................
Parking Brake ...............................................................................................................
Cutting Height Adjustment .........................................................................................

SECTION

3 - MAINTENANCE

INSTRUCTIONS

2-3
4
5
6-11
6
6
7-11
9-10
9-10
11
11

...............................

12-16

Service -After First 5 Hours ..................................................................................

12-15

Change Engine Oil ....................................................................................................
Service Engine Air Cleaner ......................................................................................
Check Mower Blade .................................................................................................
Check Blade Drive Belt ............................................................................................
Check Engine To Deck Belt .....................................................................................
Check Deck Belt .......................................................................................................
Check Blade Brake ...................................................................................................
Check Transmission ................................................................................................
Check Service Brake / Park Brake ..........................................................................

12
12
13
13
13
13
14
14
14

Check Interlock System ...........................................................................................
14
Lubrication - Grease Fittings .............................................................................
14-15
Service - Every 25 Operating Hours ..........................................................................
16
Service - Annually ........................................................................................................
16
Storage - Out Of Season .............................................................................................
16

SECTION

4- ADJUSTMENTS

AND REPAIR .....................................

Engine Adjustments & Repair ....................................................................................
Mower Blade Replacement .........................................................................................
Blade Sharpening ........................................................................................................
Mower Blade Drive Belt Adjustment & Replacement ..........................................
Engine To Deck Belt Adjustment ................................................................
Engine To Deck Belt Replacement ...................................................................
Deck Belt Replacement ................................................................................
Mower Blade Brake Adjustment .................................................................................
Transmission Drive Belt Replacement ......................................................................
Mower Deck Level Adjustment ...................................................................................
Service Brake / Park Brake Adjustment .....................................................................
Battery Removal, Replacement, Service ..............................................................
Battery Storage ............................................................................................................
Battery Testing ........................................................................................................

17-24
17
17
17
17-18
17-19
19
19-20
20
20
21
21
22-23
23
23-24

TROUBLESHOOTING
.......................................................................
25-26
MAINTENANCE
SCHEDULE ..................................................................
27
MAINTENANCE/REPLACEMENT
PARTS .............................................
27
WARRANTY ............................................................................................
28
PRIMARY MAINTENANCE
................................................................
29-32

Section 1 - FAMILIARIZATION
SEAT
ADJ USTM ENT
KNOBS

BLADE
CONTROL
LEVER

| .......................................................................

NOTE: BLADE CONTROL LEVER ON LEFT
SIDE OF MACHINE, HIDDEN IN THIS VIEW

FUEL TANK

I
!
!
!
I
I
!
I
I

I
!
I

ENGINE
SPEED
CONTROL

' IGNITION
SWITCH

CLUTCH BRAKE
PEDAL& PARK

RAKE LATCH

GROUND
SPEED
PEDAL

CUTTING
DECK HANGER

CUTTING
HEIGHTLEVER

DECK
DISCHARGE
DEFLECTOR

FIGURE 1.1

1.1 INTRODUCTION
This manual has been prepared for the operator's of the
SNAPPER Hydro Rear Engine 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 & 3 of this manual and All
SAFETY messages on the Rear Engine Rider and its
attachments before operating.

1.2 NOMENCLATURE
The nomenclature
information
above shows the
essential parts of the SNAPPER Hydro Rear Engine
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.

Section 2 - OPERATING
2.1

INSTRUCTIONS

PRE-START CHECK LIST
Make the following checks and perform the service
required before each start-up. The hydro transmission
on this machine is equipped with a roll release lever.
The control can be used to disengage the
transmission. Moving the lever to the "Release" roll
position disengages the transmission allowing the
machine to be moved without starting the engine. The
roll release lever is located at the rear of the machine.
The transmission wilt not propel the machine when the
lever is in the "Release" roll position.

WARNING

ROLL

ROLL RELEASE

="'-

2.1.7. Add fuel to tank after pushing the machine
outside where fumes can dissipate. Make sure fuel
filler cap is tight after refueling.
Refer to engine
owner's manual for fuel specifications. See Figure 2.2.
OPERATOR'S SEAT ADJUSTMENT
2.2.1. FRONT TO REAR ADJUSTMENT
1. With the engine stopped, loosen the two adjusting
knobs located beneath the seat and move seat to
desired position. After adjustment, tighten knobs
securely. See Figure 2.3.
MAKE SURE FUEL CAP
IS TIGHT.

DRIVE

2.1.1. Check tires and add or release air
needed to bring pressure to 12 PSI in front and
PSI in rear tires.

lever to insure it

2.1.6. Clean exterior surfaces of cutting deck and
engine of any accumulation of dirt, grass, oil, etc.
Keep engine air intake screen and cooling fins clear at
all times.

2.2

DO NOT disengage the hydro transmission and coast
down slopes. DO NOT use the Roll Release Control to
disengage the hydro transmission unless machine
motion can be controlled and engine is off.

2.1.5. Check blade engagement
works freely.

as
12

2.1.2. Check guards, deflectors and covers to make
sure all are in place and securely tightened.
2.1.3. Check engine oil and add oil as needed to
bring level up to the FULL mark. Refer to engine
owner's manual for oil specifications. See Figure 2.1.
FILLER CAP

2.1.4. Adjust seat as needed to most comfortable
position.
Refer to Section "Operators
Seat
Adjustment" for instructions.
FIGURE 2.2

REMOVE OIL DIPSTICK TO

SEAT ADJUSTMENT

KNOBS

FIGURE 2.1
FIGURE 2.3

Section 2 - OPERATING

INSTRUCTIONS

IMPORTANT:
This
machine
is equipped
with
hydrostatic drive. The forward and rearward movement
and the speed of movement of the machine is
controlled by the ground speed control pedal. A small
movement of the ground speed pedal can cause the
machine to move instantly. Depress the ground speed
pedal very carefully and slowly. Avoid fast starts and
sudden changes in direction.

2.3

BLADE
CONTROL
LEVER

STARTING & OPERATION
2.3.1. ENGINE (ELECTRIC START)
IMPORTANT: When the ignition key is turned to
"START", the engine will turn over, but will not start
unless the clutch/brake control pedal is pressed all the
way down and the blade control lever is in the "Off"
position. Start engine as follows:
1. Complete pre-start checklist.
2. Sit in operator's seat.
3. Engage parking brake. Depress clutch/brake
control pedal fully and pivot foot forward to lock
brake. Park brake is now engaged. See Figure 2.4.

FIGURE 2.5

START

FIGURE 2.6A
MOVE ENGINE
SPEED CONTROL TO
CHOKE POSITION

DEPRESS PEDAL
FULLY & PIVOT
FORWARD TO LOCK
POSITION. PARK
BRAKE IS NOW
ENGAGED.

FIGURE 2.4
4. Move blade control lever back to the "OFF"
blade disengaged position. See Figure 2.5.
5. Move engine speed control to the choke position to
start a cold engine. See Figure 2.6B.
6. Turn key to the "START" position until engine
starts. See Figure 2.6A. NOTE: If after 5 seconds
of cranking, the engine does not start, release the
key. Make sure the clutch/brake pedal is fully
depressed and pivoted in the locked position. Try
starting engine again after waiting for approximately
20 seconds.
7. After engine starts, move engine speed control to
the "FAST" position and allow a brief warm-up until
engine runs smooth.

SLOW POSITION

FIGURE 2.6B

, L.

WARNING

DO NOT leave machine with engine running. STOPI
engine. STOP blades. Engage park brake. Remove I
key. DO NOT park machine on slopes.
I

(Continued on Next Page)

Section 2 - OPERATING
2.3

INSTRUCTIONS

STARTING & OPERATION
2.3.1. ENGINE (ELECTRIC START) (Continued)
8. Should the battery be too weak to start the engine,
Refer to Section "ENGINE (MANUAL START)" to
manually start the electric start engine.
2.3.2. ENGINE (MANUAL START)
IMPORTANT: When the ignition key is turned to
"RUN", and the recoil handle is pulled, the engine
will turn over but will not start unless the clutch/brake
pedal is pressed all the way down and pivoted
forward to the locked position and the blade lever is in
the "OFF" position. Start engine as follows:
1. Complete pre-start checklist.
2. Engage parking brake. See Figure 2.4.
3. Move blade control lever back to the "OFF"
blade disengaged position. See Figure 2.5.
4. Move engine speed control to the choke position
to start a cold engine. See Figure 2.7.

START

FIGURE 2.8
5. Turn key to "RUN" position. See Figure 2.8.
6. Pull starter rope with a smooth, even motion until
engine starts. Always guide the starter rope back
into the recoil housing. Never allow rope to snap
back. After Engine starts, move engine speed
control to the "FAST" position.
7. Allow a brief warm-up until engine runs smooth.

MOVE ENGINE
SPEED CONTROL TO
CHOKE POSITION

SLOW POSITION

FIGURE 2.7

Section 2 - OPERATING
2.3

INSTRUCTIONS

STARTING & OPERATION
2.3.3. MOWER BLADE
1. With engine running, move engine speed control
to the "FAST" position.
2. Move blade control lever forward to the "ON"
blade engaged position. See Figure 2.9.
3. Stop blades by moving blade control lever back
to the "OFF" disengaged position.

NOTE: For best cutting results, drive machine at a slow
forward ground speed with the engine speed control set to
"FAST" position. This combination will allow the mower
blades to lift the grass while cutting smoothly and evenly.
DEPRESS CLUTCH/BRAKE PEDAL. PIVOT
PEDAL REARWARD TO UNLOCK.

GROUND
SPEED

CLUTCH/BRAKE

PEDAL
,?'

PUSH GROUND SPEED PEDAL FORWARD
TO PROPEL MACHINE FORWARD.

"OFF"
POSITION IS
ALL THE
WAY BACK.
SHOWN IN THE "ON" POSITION.
IMPORTANT: "ON" POSITION IS
ALL THE WAY FORWARD.

FIGURE 2.10A
SPEED
CONTROL

RIGHT
VIEW

FIGURE 2.9
2.3.4. WHEEL DRIVE

FORWARD

1. With engine running, adjust engine speed control to
"FAST" position.
2. Depress clutch/brake pedal, pivot pedal rearward to
unlock brake and release pedal. Releasing pedal
releases brake and engages clutch. See Figure 2.10A &
C.

WARNING
DO NOT operate blades in reverse. STOP BLADES.
LOOK and SEE behind and down for children, pets
and hazards before and while backing.
3. Depress the ground speed pedal slowly to propel
machine in the desired forward or reverse direction. See
Figure 2.10B. Pressing the ground speed pedal forward
will cause the machine to move forward. Pressing down
on the rear of the pedal will cause the machine to move
rearward. Removing foot from ground speed pedal
allows the control to return to neutral, stopping
movement of the machine. Neutral is not a parking
brake setting. The machines brake is controlled with the
clutch/brake pedal. Refer to Section "STOPPING
WHEEL DRIVE". Forward and reverse ground speed is
controlled by the amount the ground speed control pedal
is depressed. See Figure 2.10B. Move pedal slowly. DO
NOT make sudden speed or direction changes.

FIGURE 2.10B

LEFT
VIEW

CLUTCH/BRAKE

FIGURE 2.100

CONTROL

Section 2 - OPERATING
_IL

INSTRUCTIONS

WARNING

DO NOT leave the machine with the engine running
Stop Blade. Stop engine. Engage parking brake.
Remove key.
2.4

STOPPING - ENGINE, WHEEL DRIVE, BLADE
2.4.1. ENGINE
1. Stop engine by turning key off to the "STOP"
position. Move engine speed control to slow. Turn
key to "STOP". See Figure 2.11.
PIVOT FORWARD TO LOCK

FIGURE 2.12

BLADE LEVER
.... SHOWN IN THE
"OFF" POSITION.

FIGURE 2.11

I_IL

DO NOT WARNING
park machine on slopes.

2.4.2. WHEEL DRIVE
1. Stop motion of machine by allowing ground
speed control pedal to return to neutral. Depress
clutch/brake control pedal fully to apply brake.
Engage parking brake. See Figure 2.12.

FIGURE 2.13

_
_IL

WARNING

DO NOT operate blades in reverse. STOP BLADES.I
LOOK and SEE behind and down for children, pets I
and hazards before and while backing.
I

WARNING

Once blade is disengaged, it should come to a
complete stop in 3 seconds or less. If the blade
continues to rotate after 3 seconds, the blade brake
must be adjusted. Refer to Section "BLADE BRAKE
ADJUSTMENT" for adjustment procedures or return
the machine to an authorized Snapper dealer for
adjustment. DO NOT continue to operate mower
until blade brake is adjusted
and functioning
properly.

(Continued on Next Page)

2.4.3. MOWER BLADE
Stop mower blade by moving blade lever back to
the "OFF" position. See Figure 2.13.

Section 2 - OPERATING
2.4

INSTRUCTIONS
2.5. CUTTING HEIGHT ADJUSTMENT
1. Adjust
cutting height using cutting height
adjustment lever. Depress latch release button located
at the tip of the cutting height lever and move lever to
desired cutting height. Release latch button. Try to
move cutting height lever to ensure latch is fully
engaged. See Figure 2.16.

STOPPING - ENGINE, WHEEL DRIVE, BLADE
2.4.4. PARK BRAKE
1. Engage park brake by depressing clutch/brake
control pedal fully and pivot pedal forward to the locked
position. Do not park machine on slopes. See Figure
2.14.

DO NOT WARNING
park machine on slopes.

LATCH RELEASE
BUTTON

DEPRESS PEDAL FULLY &
PIVOT FORWARD TO LOCK
POSITION. PARK BRAKE IS

FIGURE 2.16

FIGURE 2.14
2. Release park brake by pushing down on the
clutch/brake pedal and rotate pedal rearward to the
unlock position and release the pedal. See Figure
2.15.

FIGURE 2.15

Section 3- MAINTENANCE
WARNING
DO NOT attempt any adjustments, maintenance,
service or repairs with the engine running. STOP
engine. STOP blade. Engage parking brake. Remove
key. Remove spark plug wire from spark plug and
secure away from plug. Engine and components are
HOT. Avoid serious burns, allow all parts to cool
before working on machine.
3.1

3.2

INTRODUCTION
To retain the quality of the Hydro Rear Engine Rider,
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 Hydro Rear Engine Riding Mower, always
mention the model and serial number. SNAPPER
recommends returning the Hydro Rear Engine Rider to
an authorized SNAPPER dealer annually for inspection
and addition of any new devices, which might upgrade
the safety of the Hydro Rear Engine Rider. 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.

ATTACH HOSE TO OIL
DRAIN FITTING

FIGURE 3.1
3.2.2. Service Engine Air Cleaner
The engine is equipped with a dual element air
cleaner. Both the foam pre-cleaner and cartridge
require service.
1. Locate engine air cleaner. Loosen cover knob
and remove cover. See Fi( ure 3.2.
REMOVE
COVER KNOB
& LIFT COVER
OFF STUD.

SERVICE - AFTER FIRST 5 HOURS
Routine
maintenance
is
important
to the
performance and life of your Hydro Rear Engine
Rider. Service performed properly and at the
recommended interval is essential. Refer to Section
"MAINTENENACE SCHEDULE" in this manual and
in the Engine Owner's Manual. Carefully complete
all of the recommended service procedures.
3.2.1. Change Engine Oil
The Hydro Rear Engine Rider is equipped with a
drain valve that allows the engine oil to be drained
without the need for tools.
1. Locate oil drain on engine. Attach hose (supplied
with machine) to fitting. See Figure 3.1.
2. Place a 2 quart minimum capacity container
under the drain valve and route hose into container.
3. Loosen or remove oil fill cap on engine.
4. Turn drain valve counter-clockwise and pull out.
Allow sufficient time for oil to drain completely.
5. Close the oil drain valve. Push valve in and turn
clockwise. Remove hose from fitting.
6. Fill engine crankcase to proper level with new oil.
Refer to the Engine Owner's Manual for crankcase
capacity and oil specifications.

ENGINE mR
CLEANER COVER

CARTRIDGE WITH
PRE-CLEANER

FIGURE 3.2
2. Remove cartridge knob.
3. Carefully lift the pre-cleaner and cartridge up off
of base and stud.
4. Clean base very carefully - DO NOT allow debris
to enter carburetor.
5. Service pre-cleaner. Wash in soap and water.
Dry thoroughly in a clean rag. Apply oil,
saturating
foam.
Remove
excess
oil by
squeezing foam in a clean absorbent rag.
6. Service cartridge. Clean by tapping gently on
firm surface. Tapping wilt remove loose debris
only. If cartridge is damaged or dirty, REPLACE
IT. DO NOT oil cartridge or use pressurized air.
7. After removing excess oil from foam pre-cleaner,
install onto cartridge and place assembly down
stud onto base.
8. Secure
cartridge.
Tighten
cartridge
knob
securely.
9. Install cover and tighten cover knob securely.

IMPORTANT: Any oil spilled during draining or
filling must be cleaned off of the machine before
operating. Dispose of drain oil properly.

Section 3 - MAINTENANCE
2. Remove cover to gain access
removing four screws. See Figure 3.4.

TWO SCREWS

belt

ON EACH SIDE OF COVER

WARNING
Blades are extremely sharp and can cause severe
injuries. Wear heavy gloves when working on or
handling blades. DO NOT use blades that show
signs of wear or damage.
3.2.3. Check Mower Blade
1. Stop engine, stop blades. Engage parking brake.
Remove key.
2. Carefully stand machine on rear bumper.
IMPORTANT: If the machine will be on its rear
bumper for longer than two hours, remove the
battery. Refer to Section "BATTERY REMOVAL".
3. Check torque of blade mounting nut. Torque nut
to 60 to 90 ft. Ibs. See Figure 3.3.

FIGURE 3.4
3. Visually inspect condition of belt. If worn or
damaged, replace. Refer to Section "ENGINE TO
DECK BELT REPLACEMENT".
4. Check belt tension. Place cutting height control
lever in mid setting. With engine "OFF", engage
blade control lever. See Figure 3.5. The length of
the control cable spring should extend a minimum
of 1/4". If extension is less than 1/4", belt tension
should be adjusted. Refer to Section "ENGINE TO
DECK BELT ADJUSTMENT".
5. Install cover. Tighten screws securely. DO NOT
operate with cover removed.

FIGURE 3.3
4. Inspect blades carefully for wear or damage.
Refer to Section "BLADE WEAR LIMITS". Replace
worn or damaged blades.
3.2.4. BLADE DRIVE & ENGINE TO DECK BELTS
A) Check Blade Drive Belt
The blade drive consists of two belts. The engine to
deck belt wilt require inspection and periodic
adjustment. The deck belt requires inspection only.
B) Engine To Deck Belt
1. Stop engine. Stop blades.
brake. Remove key.

Engage

FIGURE 3.5
C) Deck Belt
1. No tension adjustment is required.
2. Visually inspect belt for signs of deterioration.
Replace belt if worn or damaged. Refer to Section
"DECK BELT REPLACEMENT". See Figure 3.6.

parking

Section 3- MAINTENANCE

DECK

BELT
CHECK ENGINE TO TRANSMISSION BELT.
KEEP COOLING FAN & FINS CLEAN.

FIGURE 3.6

FIGURE 3.7
3.2.7. Service Brake / Park Brake
1. Check machine brake for proper function.
Engage park brake. Push machine. Rear tires
should skid. Drive machine forward and apply
brake. Machine should come to a complete stop in
less than 5 ft.

2. If brakes are not functioning properly brake
adjustment must be completed before operating
machine. Refer to Section "SERVICE BRAKE PARK BRAKE ADJUSTMENT".

3.2.5.
Blade Brake
1. Check blade brake for proper function. Blades
should stop rotating in 3 seconds or less after
moving the blade control lever back to the "OFF"
position.

3.2.8. Interlock System
Check interlock controls for proper function:
The engine MUST NOT start if:
1. Blade Control is "ON" and/or clutch / brake
pedal is released.
The engine and blades MUST STOP if:
2. The operator leaves the operator position with
Blade Control "ON" and/or clutch / brake pedal is
released.

WARNING
Blades must stop rotating in 3 seconds or less after
blades have been turned off. DO NOT operate
machine until blade brake has been adjusted and
functioning
properly.
2. If blades continue to rotate longer than 3
seconds do not operate machine. Refer to Section
"BLADE BRAKE ADJUSTMENT" or contact your
SNAPPER dealer for assistance.

WARNING

DO NOT operate machine if interlock system is not I
functioning
properly. Contact your SNAPPER Dealer I
immediately for assistance.
I

3.2.6. Transmission
1. Transmission
belt does not require tension
adjustment.
Visually
check
for
signs
of
deterioration. Replace if worn or damaged.
Refer
to
Section
"TRANSMISSION
BELT
REPLACEMENT". See Figure 3.7.
2. Transmission
belt idler pivot grease fitting
requires lube. Apply 1-3 shots of general purpose
grease from a grease gun. Refer to Section
"LUBRICATION - GREASE FITTINGS".
3. Transmission requires no fluid level check or
fluid change. Check transmission cooling fan and
cooling fins. Keep these items clean and free of
debris build up. See Figure 3.7.

3.2.9. Lubrication - Grease Fittings
The following components on the Hydro Rider are
equipped with grease fittings and require periodic
lubrication. Apply General Purpose grease with a
grease gun. To locate fittings, See Figures 3.8, 3.9,
3.10,3.11 and 3.12.
1. Front axle pivot, 2-3 shots. See Figure 3.8.

(Continued on next page)

Section 3- MAINTENANCE
3.2.9. Lubrication - Grease Fittings
(Continued from previous page)

4. Transmission belt idler arm pivot,
See Figure 3.11.

1-3 shots.

FIGURE 3.8
FIGURE 3.11
2. Front axle kingpins, 2-3 shots. See Figure 3.9.
5. Deck spindle housings,
3.12.

1-3 shots. See Figure

FIGURE 3.9
3. Front wheel
3.10.

FIGURE 3.12

bearings, 3-5 shots. See Figure

BEARINGS

FIGURE 3.10
15

Section 3- MAINTENANCE
3.3

SERVICE - EVERY 25 OPERATING HOURS

5. Elevate end of hose to prevent fuel from
draining from tank.
6. Slip hose over fittings on new filter.
7. Move hose clamps back to original position.
8. Place hose back into support clamp and
secure.
9. Check for leaks.

3.3.1. Perform all service required after the first 5
hours of operation - Refer to Section "SERVICE AFTER FIRST 5 HOURS".
3.3.2. Check battery electrolyte level. Battery is
located under seat.
1. Remove seat knobs and carefully tilt forward to
expose battery.
2. Using large blade screwdriver (or allen wrench)
remove battery caps. Check fluid level.
3. Add water only to bring liquid to proper level approximately 3/16" above plates. DO NOT OVER
FILL.
3.3.3. Check Maintenance Schedule Section of
the "Engine Owner's Manual" for additional engine
service.
3.4

3.5

1. Thoroughly clean the machine by removing all
grass clippings and debris.
2. Perform
maintenance
and lubrication
as
required.
3. Drain fuel from fuel tank.
4. Start engine and allow it to run until engine
runs out of fuel. This allows the carburetor and
fuel system to remain clean during storage.
5. Remove battery. Refer to Section "BATTERY
STORAGE".
6. Carefully stand machine on rear bumper in
desired location for storage.

SERVICE - ANNUALLY
3.4.1. Perform all maintenance as specified in
"Maintenance Schedule" section of this manual
and the Engine Owner's Manual.
3.4.2. Fuel Filter - Service fuel filter as instructed
below on Cold Engine Only.

WARNING
Gasoline is an extremely flammable liquid and its
vapors are highly explosive. Handle only outdoors
in an open, well ventilated area where vapor can
dissipate safely and away from all sources of
ignition.
1. Remove hose clamps from fuel filter.
2. Pull hose out of hose support clamp.
Figure 3.13.

STORAGE (OUT OF SEASON)
If desired, the machine can be stored on the rear
bumper.
Perform the following procedures to
insure the machine will operate properly when
taken out of storage.

See

FIGURE 3.13
3. Squeeze tabs on hose clamps using pliers and
slip clamps away from filter body.
4. Pull hose off of filter. Discard old filter.

Section 4 - ADJUSTMENTS

& REPAIR
2. Carefully stand machine on rear bumper.
3. Remove blades. See Figure 4.2.

ENGINE ADJUSTMENTS & REPAIR
Refer to the Engine owner's Manual for the
adjustments/repairs that can be made by the owner.

4.2

MOWER BLADE REPLACEMENT
4.2.1. Blade Wear Limits
Blades are subject to wear during normal usage
and require frequent inspections. Blades that have
reached the wear limit (see Figure 4.1) or have
been damaged must be replaced.

REMOVE

FIGURE 4.2

WARNING

4. Inspect condition of blades. See Figure 4.1.
5. If a blade is in good condition, sharpen cutting
edge at an angle of 22 to 28 degrees. DO NOT
sharpen beyond existing cutting edge. Replace
blades not in good condition.
6. Check blade balance after sharpening. Correct
blade balance by grinding on the tip of the heavy
end of the blade.
7. Reinstall blades. Carefully align center hole in
blade onto blade retainer and slide on spindle shaft.
Install cone washer and nut. Torque nut to 60 to 90
ft. Ibs. See Figure 4.2.
8. Carefully lower machine off of bumper.

DO NOT operate machine with a blade that shows
signs of excessive wear or damage.

NEW
BLADE

_._,>.___

4.2.3. Blade Replacement
1. Stop engine. Stop blades. Engage parking
brake. Remove key.
2. Carefully stand machine on rear bumper
3. Loosen blade nut and remove.
4. Install new blade with airlift side up. Carefully
align center hole in blade onto blade retainer. Install
cone washer and nut. Torque nut to 60 to 90 ft. Ibs.
5. Carefully lower machine off of bumper.

WEAR LIMIT
(NOTCH STARTS)

_"'--_..__

_ilj "0-''-'-

DANGEROUS CONDITION!
DO NOT USE ON MOWER!
REPLACE WITH NEW

FIGURE 4.1
4.2.2. Blade Sharpening
Inspect blades carefully. Blades that
reached the wear limit and have not been
may have the cutting edge resharpened.
attempt to sharpen a blade that shows
excessive wear or damage. DO NOT
beyond existing cutting edge.

BLADE

4.3
have not
damaged
DO NOT
signs of
sharpen

WARNING

MOWER BLADE DRIVE BELTS - ADJUSTMENT /
REPLACEMENT
4,3,1, Engine to Deck Belt Adjustment
The engine to deck belt will require periodic tension
adjustment
to
maintain
peak
blade
drive
performance.
1. Stop engine. Stop blades. Engage parking
brake. Remove key.
(Continued on next page)

Blades are extremely sharp and can cause severe I
injury. Wear heavy gloves when handling or workingl
around blades.
I
1. Stop engine. Stop blades. Engage parking
brake. Remove key.
17

Section 4 - ADJUSTMENTS

& REPAIR

WARNING
DO NOT attempt any adjustments, maintenance,
service or repairs with the engine running. STOP
engine. STOP blades. Engage parking brake. Remove
key. Remove spark plug wire from spark plug and
secure away from plug. Engine and components are
hot. Avoid serious burns by allowing all parts to cool
before working on machine.
4.3

INCREASE
TENSION

MOWER BLADE DRIVE BELTS- ADJUSTMENT/
REPLACEMENT (continued from previous page)
2. Remove cover to gain access to the belt, idler and
control cable area. The cover is retained to the seat
pedestal with four screws. See Figure 3.4.
3. Visually inspect condition of belt. If worn or
damaged, replace. Refer to Section "ENGINE TO
DECK BELT REPLACEMENT" for instructions.
4. With engine stopped, move blade control lever to
the ON position. The control cable spring should
extend between 3/8" & 1/2". See Figure 3.5. If spring
extension is less than 1/4", adjustment is required.
CONTROL
1/2"

CABLE SPRING EXTENSION

FIGURE 4.4
6. If step 5 did not produce the correct spring
extension, the idler pulley will require repositioning.
The idler arm has a series of 4 holes. See Figure 4.5.
The #1 position produces the highest belt tension, #-4
the lowest. Remove the idler pulleynoting the
mounting hole location prior to removing bolt.

RANGE 3/8" &

FIGURE 4.5
7. Reposition the idler pulley one hole at a time in the
desired direction (higher tension or lower tension).
Install bolt and nut. Tighten securely.
IMPORTANT: DO NOT over tension belt. Excessive
tension will adversely affect belt drive function and
can cause damage.
8. Check belt tension. Repeat step 4. Use threaded
fitting on cable for fine adjustment (refer to step 5).
DO NOT exceed 1/2" spring extension.

NOTE: POSITION BELT GUIDES 1/8" FROM BELT WITH
BLADE CONTROL ON (ENGINE OFF).

FIGURE 4.3
5. The threaded fitting on the end of the control cable
provides fine tension adjustments. See Figure 4.4.
Loosen jam nuts and turn nuts until spring extension
falls in the range of 3/8" to 1/2". Tighten nuts securely.
Move blade control lever to the OFF position. Install
cover (refer to note below) and tighten screws
securely.

NOTE: The rear deck brackets are slotted where they
attach to the deck. This provides adjustment to
accommodate variations in belt length. Loosen nuts
(4) and slide deck forward to increase engine to deck
belt tension.

NOTE: If the threaded fitting adjustment did not
produce proper spring extension, leave cover off and
proceed to next step.

Section 4 - ADJUSTMENTS
4.3

& REPAIR

MOWER BLADE DRIVE BELTS - ADJUSTMENT /
REPLACEMENT (continued from previous page)

4.3.3. Deck Belt Replacement
The deck belt requires no adjustments. Replace
belt if it becomes worn or damaged.
1. Stop engine. Stop blades. Engine parking
brake. Remove key.
2. Remove cover to gain access to belt area. The
cover is retained to the seat pedestal with four
screws.
3. Remove engine to deck belt from jackshaft
pulley. Refer to Section "ENGINE TO DECK BELT
REPLACEMENT".
4. Remove blade control cable from cable anchor
bracket and unhook control cable spring from the
idler arm. See Figure 4.7.

WARNING
The following
procedure requires the engine and
blades to be operated. Exercise extreme caution. Clear
area of loose parts & tools first. Only operate blades
when seated in the operator's seat.
9. Check blade drive for proper function. Start
engine. Engage blades. Blades should engage
smoothly. Disengage blades. Blades should stop
rotating in 3 seconds or less. If blade drive does not
function properly recheck adjustments or contact your
SNAPPER dealer for assistance.
10. Install cover to seat pedestal. Tighten screws
securely.
4.3.2. Engine To Deck Belt Replacement
Replace belt if worn, damaged or if belt adjustment
does not restore proper function.
1. Stop engine. Stop blades. Engage parking brake.
Remove key.
2. Remove cover to gain access to belt area. The
cover is retained to the seat pedestal with four
screws. See Figure 3.4.
3. Remove belt guide at deck jackshaft pulley.
See Figure 4.6.

UNHOOK SPRING AND
REMOVE CABLE FROM
ANCHOR

FIGURE 4.7

Deck belt is under spring tension. Use caution
removing.
5. Wrap heavy rag around belt behind left spindle
pulley as shown in Figure 4.8.

BELT GUIDE

FIGURE 4.6
4. Make sure blade control lever is "OFF". Route
belt off of jackshaft pulley and idler pulley.
5. Place deck in low cut.
6. Route belt down off of engine pulley and
between belt guides. See Figure 4.3.
7. Reverse procedure to install new belt.
8. Check belt tension and adjust as required.
Refer to Section "ENGINE TO DECK BELT
ADJUSTMENT".
9. Install cover to seat pedestal. Tighten screws
securely.

FIGURE 4.8

(Continued on next page)

Section 4 - ADJUSTMENTS

& REPAIR

4.3.3.

Deck Belt Replacement (continued from
previous page)
6. Grip rag firmly while pulling up on belt and
rotating pulley. Belt will roll off of spindle pulley.
7. Very carefully relax tension on belt.
8. Route belt off of jackshaft pulley, idler pulley
and right spindle pulley. Remove deck belt spring.
Remove belt. See Figure 4.8.
9. Reverse procedure to install new belt.
10. Attach blade control cable spring to idler arm
and blade control cable to anchor bracket. Tighten
nut securely.
11. Install engine to deck belt and belt guide at
jackshaft pulley.
12. Install cover to seat pedestal. Tighten screws
securely.
FIGURE 4.9

WARNING
Blades must stop rotating in 3 seconds or less after
blades have been turned off. DO NOT operate machine
until blade brake has been adjusted and functioning
properly.
Contact
your
SNAPPER
dealer for
assistance.
4.4

WARNING
DO NOT operate machine until blade brake is adjusted
and functioning properly. If blade stop time can not be
achieved with the adjustment procedure described
above, take machine immediately to an authorized
SNAPPER dealer.

MOWER BLADE BRAKE ADJUSTMENT

4.5 TRANSMISSION DRIVE BELT REPLACEMENT
The transmission and the transmission drive belt
require no adjustments. If the transmission belt
becomes worn or damaged, replace it.
1. Stop engine. Stop blades. Engage parking
brake. Remove key.
NOTE: Park brake must be engaged to release
tension from the transmission belt allowing it to be
removed.
2. Remove engine to deck belt. Refer to Section
"ENGINE TO DECK BELT REPLACEMENT".

WARNING
The following
procedure requires the engine and
blades to be operated. Exercise extreme caution. Clear
area of loose parts & tools first. Only operate blades
when seated in the operator's seat.
The blade brake when properly adjusted will stop
blade rotation in 3 seconds or less when the blade
control lever is moved to the "OFF" position.
Blade brake adjustment is made by turning the
adjustment nut on the threaded brake rod. The
brake is initially set with 7/16" of thread exposed
beyond the nut. See Figure 4.9. Verify this setting
before attempting any adjustments.
To tighten the brake (stop blade rotation quicker)
turn the adjustment nut clockwise - ONE TURN
ONLY.

3. Roll transmission belt off of transmission pulley.
See Figure 4.10.
4. Route belt down off of engine pulley and
between belt guide.
5. Install new belt reversing above procedure.

IMPORTANT: DO NOT over-tighten blade brake.
Tighten one turn and check function of brake. If
blade stop time remains over 3 seconds, turn
adjustment nut one more turn clockwise. If blade
stop time remains over 3 seconds DO NOT
OPERATE machine. Contact your local SNAPPER
Dealer for assistance.

FIGURE 4.10

Section 4 - ADJUSTMENTS

& REPAIR
4.7 SERVICE BRAKE / PARK BRAKE ADJUSTMENT
1. Park machine on flat surface. Stop engine. Stop
blades. Remove key.
NOTE: DO NOT engage parking brake.
2. Locate disc brake on left side of transmission.
Move brake arm fully forward in slot. See Figure 4.11.
3. Use a .020" thick feeler gage to adjust the
clearance between the brake pad and disc.
4. Insert the .020" feeler gage vertically up at the
bottom of the disc and between the disc and pad.
5. Tighten the brake adjustment nut until a light
drag is felt on feeler gage. Remove feeler gage.
6. Check disc. With brake released the disc
should be free to move.
7. Engage parking brake. Pedal effort should not
be excessive. Check brake rod spring. With brake
engaged there should be clearance between the
coils. See Figure 4.12.
8. Check brake function.
Refer to Section
"CHECKING SERVICE BRAKE/PARK BRAKE".

WARNING
DO NOT attempt any adjustments, maintenance,
service or repairs with the engine running. STOP
engine. STOP blade. Engage parking brake. Remove
key. Remove spark plug wire from spark plug and
secure away from plug. Engine and components are
HOT. Avoid serious burns, allow all parts to cool
before working on machine.
4.6 MOWER DECK LEVEL ADJUSTMENT
If you are experiencing an uneven cut refer to
"TROUBLESHOOTING"
section in this manual.
Before attempting any deck adjustments ADJUST
TIRE PRESSURE - 12 PSI FRONT & 12 PSI REAR
The mower blades should be level side to side
within 1/8" or less. Check level and adjust as
follows:
1. Park machine on flat surface. Stop engine. Stop
blades. Engage parking brake. Remove key.
2. Wearing heavy gloves, carefully grasp blades
and rotate until both are perpendicular to the
machine frame.
3. Check side to side level. Measure distance from
the blade tip to the ground. Record this for both
blades.
4. The two distances should not differ more than
118". If difference is greater than 1/8", adjustment
will be required.
5. Locate the threaded deck hanger rod on the
side of the deck that was measured to be low.
6. Remove hairpin from hanger rod. Rotate
CLOCKWISE one to two turns.
7. Recheck side to side level. If 1/8" or less
adjustment is complete. If still greater than 118"
adjust hanger rod as needed.
8. Reinstall hairpin into hanger rod.

BRAKE SPRING - CLEARANCE BETWEEN
COILS WITH PARK BRAKE ENGAGED.

BRAKE
ARM

FIGURE 4.12

:..... INSERT FEELER
GAGE BETWEEN
DISC & PAD

ADJUSTMENT
NUT

FIGURE 4.11

Section 4 - ADJUSTMENTS

& REPAIR

BATTERY
4.8.1. Battery Removal
1. The battery is located under seat. Remove seat
knobs and carefully tilt forward to expose battery.
See Figure 4.13.
SEAT KNOBS

FIGURE 4.14

.........

WARNING
Cables must be connected to battery terminals in the
proper position as show in Figure 4.14. DO NOT
attempt to charge battery while installed on the
Machine.
DO NOT use "BOOST" chargers on the
battery.
4.8.2. Battery Installation
IMPORTANT: Your Hydro Rear Engine Rider is
equipped with a specially designed battery that
allows the machine to be placed on the rear bumper
for up to 2 hours with no acid leakage. Failure to
use a genuine Snapper battery or installing the
Snapper battery incorrectly will result in damage to
your machine. The Snapper battery must be
installed with the battery caps towards the front of
the machine and the terminals towards the rear.
See Figure 4.14.
1. Carefully place battery into battery tray.
2. Connect positive (+) cable (red) first, from wiring
harness to the positive terminal (+) on battery using
bolt and nut. See Figures 4.15

FIGURE 4.13
2. Observe and note cable positions on battery.
See Figure 4.14.
3. Disconnect
cables from
battery terminals,
disconnecting BLACK (Negative) cable first. Retain
mounting bolts and nuts.
4. Carefully lift battery out of battery tray.

WARNING
If battery is removed, DO NOT operate engine
without insulating the Positive + battery cable
terminal with electrical tape, or sparking from the
battery cables can result.

FIGURE 4.15

Section 4 - ADJUSTMENTS

& REPAIR

4.8.2. Battery Installation (Continued)
3. 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.
See Figure 4.16.

4.8.3. Battery Service
1. Remove battery. Refer to Section "BATTERY
REMOVAL".
2. Place battery in a well ventilated area on a level
surface.
3. Using distilled water, refill cells as required to
cover cell plates.
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.
6. If battery will not accept charge or is partially
charged after 10 hours of charging at 1 amp,
replace with new battery.
4.8.4. Battery Storage
If machine is to be stored out of season, it is
recommended the battery be removed, charged
and stored. If the machine is stored out of season
on its rear bumper, the battery must be removed,
charged and stored.
1. Remove battery. Refer to Section "BATTERY
REMOVAL".
2. Perform battery service.
3. Bring battery to full charge, if required.
4. Store battery in an area away from the RIDER on a
wood surface. DO NOT STORE BATTERY ON A
CONCRETE SURFACE.

FIGURE 4.16
4. Reinstall positive terminal insulator.
5. Install seat/pedestal. Tighten seat knobs securely.

WARNING
Shield the positive terminal with terminal cover
located on battery harness. This prevents metal from
touching the positive terminal, which could cause
sparks.

WARNING
The electrolyte
(acid)produces a highlyexplosivegas.
Keep allsparks,flame and fireaway from area when
charging battery or when handling electrolyteor
battery.Electrolyte
(acid)is a highlycorrosiveliquid.
Wear eye protection.
Wash affectedareas immediately
afterhaving eye or skin contactwith electrolyte
(acid).
Batteryacid iscorrosive.Rinse empty acid containers
with water and mutilate before discarding. If acid is
spilled on battery, bench, or clothing, etc., flush with
clear water and neutralize with baking soda.

DO NOT attempt to charge battery while installed
Riding Mower. DO WARNING
NOT use "BOOST" chargers
battery. DO NOT OVERFILL!

4.8.5. Battery Testing
There are two types of battery tests: Unloaded and
Loaded. The unloaded test is the procedure that will
be discussed. It's the simplest and most commonly
used. An unloaded test is made on a battery without
discharging current. To perform unloaded testing,
check charge condition using either a hydrometer or
voltmeter.
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. Measure the battery voltage and compare
to the voltages listed in the "BATTERY CONDITION
CHART" in this manual to determine condition of
battery.
2. A hydrometer measures the specific gravity of
the electrolytes in each cell. The specific gravity
tells the degree of charge; generally, a specific
gravity of about 1.265 to 1.280 indicates full charge.
A reading of 1.230 to 1.260 indicates the battery
should be charged. The "Battery Condition Chart"
included in this manual shows the charge level as
measured
by syringe float hydrometer,
digital
voltmeter and five ball hydrometer.

Section 4 - ADJUSTMENTS
4.8.6.

& REPAIR

Battery Testing

Batten/Condition
State of Charge
100% Charged w/Sulfate
100% Charged
75% Charged
50% Charged
25% Charged
0% Charged

Stop

Syringe Hydrometer
1.280
1.265
1.210
1.160
1.120
Less than 1.100

Chart
Digital Voltmeter
12.80v
12.60v
12.40v
12.10v
11.90v
Less than 11.80v

Five Ball Hydrometer
Five Balls Floating
Four Balls Floating
Three Balls Floating
Two Balls Floating
One Ball Floating
Zero Balls Floating

TROUBLESHOOTING
PROBLEM
EngineWill Not
Start Using
Recoil Starter

Engine Will Not
Start Using
Electric Starter

PROBABLE CAUSE

CORRECTIVE ACTION

1. Fuel tank empty.
2. Engine needs choking.
3. Spark plug wire disconnected.
4. Faulty parking brake, blade or ignition switch.
5. Park brake not engaged.
6. Ignition is in the OFF position.
1. Fuel tank empty.
2. Engine needs choking.
3. Spark plug wire disconnected.
4. Faulty parking brake, blade or ignition switch.
5. Park brake not engaged.
6. Blown Fuse.
7. Faulty interlock module.
8. Ignition is in the OFF position.
9. Battery is weak or dead.
10. Battery cables loose, broken disconnected or
corroded.
11. Faulty electric starter or starter solenoid.
12. Starter cable loose, broken or disconnected.
13. Electrical wiring harness disconnected or broken.

Engine Stalls After
Running

Engine Loses
Power

Engine Backfires
When Turned To
"STOP"
Excessive Vibration

1. Fill fuel tank with fresh fuel to proper level.
2. Move engine speed control to "CHOKE"
position.
3. Place spark plug wire onto spark plug.
4. Contact authorized SNAPPER dealer.
5. Engage park brake.
6. Turn ignition switch to the RUN position.
1. Fill fuel tank with fresh fuel to proper level.
2. Move engine speed control to "CHOKE"
position.
3. Place spark plug wire onto spark plug.
4. Contact authorized SNAPPER dealer.
5. Engage park brake.
6. Replace with new 20 AMP fuse.
7. Contact authorized SNAPPER dealer.
8. Turn ignition switch to the START position.
9. Charge or replace with new battery.
10. Clean and connect battery cables. If
broken, replace with new battery cables.
11. Contact authorized SNAPPER dealer.
12. Connect starter cable. If broken, replace
with new starter cable.
13. Connect or replace with new wiring harness.

1. Operator not in seat.
2. Choke control in the "CHOKE" position.
3. Fuel tank empty.
4. Engine air pre-cleaner and or air cleaner dirty.
5. Spark plug defective or gap set improperly.
6. Fuel filter restricted.
7. Water, debris or stale fuel in fuel system.

1. Sit in operator's seat.
2. Move choke control to "OFF" position.
3. Fill fuel tank with fresh fuel to proper level.
4. Clean free of all debris.

1. Excessive load on engine.
2. Engine air pre-cleaner or air cleaner dirty.
3. Spark plug faulty.
4. Water, debris or stale fuel in fuel system.
5. Debris build up on engine cooling screen.

1. Lessen load.
2. Clean or replace filters.
3. Service spark plug.
4. Drain and clean fuel system. Replace filter.
5. Clean all debris from engine cooling screen.

1. Engine speed control set too "FAST".

1. Set engine speed control to "SLOW" and
allow engine to idle. Then, turn key to
"OFF".

1.
2.
3.
4.
5.

1. Service mower blade(s).
2. Service and tighten loose parts.
3. Replace air lifts. Tighten to proper torque.
4. Replace belt.
5. Replace pulley.

Damaged, out of balance or bent mower blades.
Loose blade components.
Loose or missing air lift (if equipped).
Lumpy or frayed belt.
Bent Idler, stationary or spindle pulley.

(Trouble

Shooting

Continued

5. Service spark plug.
6. Replace fuel filter.
7. Drain and clean fuel system.

on Next Page)

TROUBLESHOOTING
(Continued

PROBLEM

on Previous

PROBABLE CAUSE

CORRECTIVE ACTION

Rider Will Not Move
Loss Of Traction

1. Transmission dama,qed.
2. Engine to transmission belt damaged.
3. Roll release engaged.
4. Parking brake engaged.

Blade(s) Not Cutting

1. Blade engagement lever in the "OFF" position.
2. Mower belt slipping.
3. Cutting blade is dull, worn or damaged.
1. Uneven tire pressure.

Cutting Grass
Improperly

2. Cutting height too low or high.
3. Engine speed too slow.
4. Forward speed too fast.

Poor Grass
Discharge

5. Terraced cut, side to side.
6. Excessive deck pitch, front to rear.
7. Cutting blade(s) dull or damaged.
8. Mower belt slipping.
1. Engine speed too slow.
2. Forward speed too fast.
3. Grass is wet.
4. Excessively dull, worn or damaged blade(s).
5. Build up of grass clippings and debris under
deck.

Oil Leaking

Page

6. Improper blade installed on deck.
1. Leaking transmission.
2. Leaking engine block.

, Contact authorized
SNAPPER dealer.
2. Install new engine to transmission belt.
3. Move control to DRIVE position.
4. Release parking brake.
1. Move lever to the "ON" position.

2. Adjust or replace mower belt.
3. Sharpen or replace cutting blade.
1. Bring to proper pressure. 12 PSI front tire
& 12 PSI rear tire.
2. Adjust cutting height.
3. Move throttle control to "FAST" position.
4. Move ground speed pedal to a slower
speed.
5. Adjust side to side level.
6. Adjust front to rear pitch.
7. Sharpen cutting edges or replace blade(s).
8. Adjust tension or replace mower belt.
1. Move throttle control to "FAST" position.
2. Move ground speed pedal to a slower
speed.
3. Mow when grass is dry.
4. Service mower blade.
5. Clean the underside of deck.
6. Install proper SNAPPER blades.
1. Contact authorized SNAPPER dealer.
2. Contact authorized SNAPPER dealer.

MAINTENANCE
SUBJECT

SCHEDULE
6
HOURS

26
HOURS

60
HOURS

100
HOURS

EACH
SEASON

Engine

Page 6

Engine

Initial Oil Change

Page 12

Engine

Periodic Oil Change

Page 16

Air Pre-Cleaner

Service Sponge PreCleaner Element

Engine Manual

Air Cleaner

Replace Element

Engine Manual.

Spark Plug

Replace Plugs

Engine Manual.

Fuel Filter

Replace Filter

Page 16

Engine Cooling
System
Transmission
Cooling System
Battery

Clean Shrouds & Fins

Engine Manual

X**

Clean fan & fins.

Page14

Check Electrolyte

Page 23

Battery

Charge Battery

Page 23

Tires

Check Pressures

Page 6

Drive Belts

Check For Wear,
Tension, Replacement
Check For Wear And

Pages 13,19,20

Mower Blades
Mower Deck
Lubrication Points
Blade Brake
Stopping Time
Clutch/Brake System

Damage
Clean Debris
Accumulation
Grease or Oil

REFERENCE
PAGES

EACH
USE

SERVICE
TO BE PERFORMED
Check Oil Level

X
X

Pages 13,17

Page16

Pages 14 & 15

Check blade stopping
for proper operation
Check Clutch/Brake for
proper operation

Pages 10 & 19

Page 7-11 & 21

*Change oil every 25 hours when operating under heavy load or high temperatures.
**Clean more often under dusty conditions or when airborne debris is present.

MAINTENANCE/REPLACEMENT
MAINTENANCE

PARTS

Engine Speed Control (Briggs Engine)
Blade Engagement Cable
38" Cutter Blade (Requires 2 Blades I
Parts Manual for Rear Engine Rider Hydro Drive Series 0 & 1
Engine to Hydro Pump Belt
Engine to Deck Belt
Deck Spindle to Spindle Belt

4-6956
5-8196
4-2998
06123
4-7117
5-8231
7-1991

3 YEAR LIMITED

WARRANTY

For three (3) years from purchase date for the original purchaser's residential, non-commercial use, SNAPPER, through
any authorized SNAPPER dealer will replace, free of charge (except for taxes where applicable), any part or parts found
upon examination by the factory at McDonough, Georgia, to be defective in material or workmanship or both.
For ninety (90) days from purchase date for the original purchaser's commercial, rental, or other non-residential use,
SNAPPER, through any authorized SNAPPER dealer will replace, free of charge, any part or parts found upon
examination by the factory at McDonough, Georgia, to be defective in material or workmanship or both.
All transportation costs incurred by the purchaser in submitting
replacement under this warranty must be paid by the purchaser.

material to an authorized

SNAPPER

dealer for

This warranty does not apply to engines and their components, and batteries, as these items are warranted separately.
This warranty does not apply to parts that have been damaged by accident, alteration, abuse, improper lubrication,
normal wear, or other cause beyond the control of SNAPPER. This warranty does not cover any machine or component
part that has been altered or modified changing safety, performance, or durability.
Batteries have a one (1) year prorated warranty period with free replacement if required during the first ninety (90) days
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 three
(3) years from purchase date for the original purchaser's residential or other non-commercial use, and ninety
(90) days from purchase for the original purchaser's commercial, rental or other non-residential use, and to the
extent permitted by law, any and all implied warranties are excluded. This is the exclusive remedy. Liabilities for
consequential damages, under any and all warranties are excluded.
Some states do not allow limitations on how long an implied warranty lasts, or do not allow the exclusion or
limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you.
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
WARNING: THE USE OF REPLACEMENT PARTS OTHER THAN GENUINE SNAPPER PARTS MAY IMPAIR THE
SAFETY OF SNAPPER PRODUCTS AND WILL VOID ANY LIABILITY AND WARRANTY
BY SNAPPER
ASSOCIATED WITH THE USE OF SUCH PARTS.
IMPORTANT: Please fill out the attached SNAPPER Product Registration Card immediately and mail to:
Snapper's Product Registration Center, P.O. Box 1379, McDonough, Georgia 30253

PRIMARY

MAINTENANCE

illustration of
how dirt can

_r
& how

maintenance
can protect it!

Snapper uses the best available engines and components
In their products in order to
provide long, satisfactory
service. However, proper
care is essential In
prolonging engine life. Dirt
Is your engine's enemy
t
number 11

The engine on your Snapper
product spends Its entire life
operating close to the ground at
high speed creating a virtual
storm of dust and dlrtl

PRIMARY

MAINTENANCE

I(nowing that dirt will
quickly ruin an engine,
manufacturers equip their
engines with extremely
efficient air cleaners to
filter out the harmful dirt.

gulp about 12,000
gallons of =dr for
used. Because of
its working environment, the air available
to your Snapper engine Is "
heavily saturated with airborne dirt particles.

As the dirt particles are stopped,
they build up and begin to clog
the outside of the filter. This
reduces the amount of air
available to the engine and causes
an over-rich fuel mixture which results In the following adverse
effects:

Damage caused by a poorly serviced air
cleaner Is not covered under the engine
warranties. So, save yourself unnecessary
expenses and undue aggravation by keeping
the =dr cleaner properly serviced at the Intervals
specified In the engine owner's manual.

An Improperly serviced, dirt
clogged air cleaner will:

1.
2.
3.
4.

Increase fuel consumption
cause power lose
result in hard starting
create smoke from unburned
fuel
5. produce carbon build-up ;
Internally
8. foul spark plug electrodes
7. score cylinder walls
8. burn valves
9. wear out the engine prematurely
10. COST YOU MONEY!

It doesn't take long to service an air cleaner.
Follow the specific instructions In the engine
owner's manual for the type filter used. Prevent dirt from f=dllng Into the carburetor Intake
when servicing your =dr cleaner• Make sure
components are Installed In correct sequence
after servicing to prevent unfiltered air from
entering the engine. Some servicing hints on
several common types are:

PRIMARY

MAINTENANCE
Air Is also needed to keep
your engine cool. Dirt, dust
& debris build up to restrict
and clog cooling air Intake
screens and fins. Clean
screens and fins at frequent
Intervals. The engine blower
housing and shrouds should
be removed at least once
each season or more often
under dry, dusty conditions
for a thorough cleaning of
fins.

Generally, wash foam-type filters
In a dlshwashlng detergent and
water solution. Rinse and wring
dry, then saturate with oil and
squeeze out excess. Failure to
re-oil this type filter will ruin the
engine.

Failure to keep external
surfaces clean not only
presents fire hazards, but
causes overheating and
resulting engine damages
such as:
1.
2.
t ° o. 3.
,,_.
4.
5.
6.

Clean paper elements by tapping
lightly. Blowing with air will
rupture paper elements.
Use a flashlight to detect clogged
or torn paper elements - replace If
damaged In any way.

distorted valve guides
sticking valves
scuffed, scored
walls
overspeedlng
loss of power
complete failure of
engine.

Dirt can also be introduced
into an engine In dirty fuel
from a contaminated
container. Always use clean
fresh fuel from a clean
container to guard against
dirt, sludge and water
contamination.

Be aware that fuel breaks
down in storage and forms
gummy compounds which
will block carburetor passages. Never use fuel more
than 3 months old. Drain
tank then run the engine out
of fuel before storing during
the off-season.

An engine must also have proper lubrication.
All engines use some oil. On 4-cycle engines,
CHECK OIL LEVEL BEFORE EACH START-UP.
Wipe area clean around the oll check plug or
dipstick opening to keep dirt from falling into
the engine when checking the oil. Always
check with the machine on a level surface.
On engines with dipstick, keep the level up to,
but not over, the FULL mark. When adding o11,
allow time for all of the oll to flow down the fill
tube to prevent a false full reading when the
level could actually be low and result In engine
damage.

PRIMARY

MAINTENANCE
On 2-cycle engines, lubrication must be
provided by an exact mixture of gasoline
and 2-cycle air-cooled engine oil A 2-cycle
engine that Is mistakenly run on straight
gasoline will be ruined in less than 5
minutasl If you keep straight gasoline In
addition to pre-mixed 2-cycle engine fuel,
be sure the containers are clearly marked
to avoid mix-up.
Snapper 2-cycle engines require a 32 to 1
mixture of gasoline and BIA certified TC-W
oil such as Snapper's 2-cycle engine oil
Many of the 2-cycle engine oils on the
market today make fantastic claims, but for
the best performance and long engine life,
always use Snapper 2-cycle oil Pre-mix
the fuel and always shake the container
before _llng the tank.

On 4-cyle engines with an oil level plug,
do n't be fooled into thinking the engine has
sufficient lubricating oii if you can see "some"
oil in the opening - the level should always be
brought up to the point of
at the
top of the fill hole,

Change oil at regular Intervals using a a high
quality oil such as Snapper's small engine
formulated 4-cycle engine oil Refer to the
engine owner's manual for oil details.
STARTING

CHECK

Engine 011

•
•

Air Cleaner

Fuel Tank

4.
5.

Choke
Primer (on
some engines)
Safety Interlock Switches
Switch &
Blade Control

•
•
•
•
•
•
•

Read and follow all safety
Instructions in safety booklets and manuals.

To full level (4-cycle)
Properly mixed with gas
(2 cycle)
Clean and properly serviced
Full fresh clean gasoline
Fuel valve open
Cap vent open
lnline filter clean
Operating
properly
Used properly

Spark plug

•
•

In proper position
All wires properly connected
Switch On
Blade control properly
positioned on walk mower
Wlra connected
Good connection

•

Start position

10.

Throttle
control
Blade

11.

Muffler

•
•
•
•

LIST

Keep in mind that dirt Is your engine's enemy
#1 both Internally and externallyl Internally,
dirt will quickly ruin an engine and externally
It will cause overheating and resulting Internal
Damage caused by Improper lubrlpoor air cleaner service or overhseting
due to dirt cannot be covered under warranty.
It only takes a few moments to service the
engine (and equipment) on a routine baals
but the rewards will be a quick starting, responsive engine that will provide long
satisfactory service with minimum maintanance
cost. The prestart checklist In the next column
and Instructions In your Snapper Operator's
Manual are designated to help you keep your
Snapper In top operating condition with
minimum effortl

Properly Installedand
torqued
•
•
•
•

Sharpened
Good condition
Not clogged
Grass & leaves cleaned away

SERVICE

NOTES

Safety Instructions & Operator's Manual for

REAR ENGINE RIDING MOWER
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.

SNAPPER, McDonough,
GA., 30253

U.S.A.

MANUAL No. 7-2214 (REV. 3, 8/29/01)
34

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Snapper 381451HBVE User Manual REAR ENGINE RIDING MOWER Manuals And Guides L0807731

SNAPPER Lawn, Riding Mower Rear Engine Manual L0807731 SNAPPER Lawn, Riding Mower Rear Engine Owner's Manual, SNAPPER Lawn, Riding Mower Rear Engine installation guides

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