Safety Instructions & Operator’s Manual for
YARD CRUISER
HYDRO DRIVE
SERIES 4
MODELS
YZ16424BVE
YZ20484BVE
MODEL NUMBER EXPLANATION
Y
Z 16 42 4
B
V
E
MODEL DESIGNATION
DRIVE SYSTEM TYPE
ENGINE HORSE POWER
CUTTING WIDTH
ENGINE OPTIONS
ENGINE TYPE
ENGINE MODEL
SERIES DESIGNATION
Y – Yard Cruiser
Z – Zero Turning Radius
16 – 16 HP Engine
20 – 20 HP Engine
42 - 42” Cutting Deck
48 - 48” Cutting Deck
4 - Series Designation B - Briggs Engine
V – Over Head Valve
E - Electric Start
Thank you for buying a SNAPPER Product! Before operating your YARD CRUISER, 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!
COPYRIGHT © 2002
SNAPPER INC.
ALL RIGHTS RESERVED
MANUAL No. 6-3260 (REV. 1, 6/28/02)
IMPORTANT SAFETY INSTRUCTIONS
PREPARATION
(Continued From Previous Page)
OPERATION
(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.
15. DO NOT operate engine in enclosed areas. Engine
exhaust gases contain carbon monoxide, a deadly
poison.
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.
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.
2. Keep engine free of grass, leaves or excess grease
to reduce fire hazard and engine overheating.
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.
6. Always provide adequate ventilation when running
engine. Exhaust gases contain carbon monoxide,
an odorless and deadly poison.
7. Disconnect negative (black) cable from battery
before performing maintenance or service.
Cranking engine could cause injury.
8. DO NOT work under machine without safety blocks.
9. Service engine and make adjustments only when
engine is stopped. Remove spark plug wire(s) from
spark plug(s) and secure wire(s) away from spark
plug(s).
OPERATION
1. Mount and dismount machine from left side.
2. Start engine from operator's seat, if possible.
Make sure blades are OFF and parking brake is
set.
3. DO NOT leave machine with engine running.
STOP engine, STOP blades, SET brake, and
Remove key before leaving operators position
of any reason.
4. DO NOT operate machine unless properly
seated with feet on feet rests or pedal(s).
5. STOP BLADES and ENGINE and make sure
blades have stopped before removing grass
catcher or unclogging mower to prevent loss of
fingers or hand.
6. Blades must be OFF except when cutting grass.
Set blades in highest position when mowing
over rough ground.
7. 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.
8. DO NOT operate machine without entire grass
catcher or guards in place. DO NOT point
discharge at people, passing cars, windows or
doors.
10. DO NOT change engine governor speed settings or
overspeed engine.
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.
13. DO NOT test for spark by grounding spark plug
next to spark plug hole; spark plug could ignite gas
exiting engine.
14. Have machine serviced by an authorized SNAPPER
dealer at least once a year and have the dealer
install any new safety devices.
15. Use only genuine SNAPPER replacement parts to
assure that original standards are maintained.
16. If battery is removed, DO NOT operate engine
without insulating Positive + battery cable terminal
with electrical tape, or sparking from battery cables
can result.
9. Slow down before turning.
10. Watch out for traffic when near or crossing
roadways.
11. STOP engine immediately after striking an
obstruction. Inspect machine and repair
damage before resuming operation.
12. Operate machine only in daylight or with good
artificial light.
13. Move joystick (if equipped) SLOWLY to
maintain control during speed and directional
changes.
3
TABLE OF CONTENTS
IMPORTANT SAFETY INSTRUCTIONS.........................................................................2-3
TABLE OF CONTENTS......................................................................................................4
SECTION 1 - FAMILIARIZATION.......................................................................................5
SECTION 2 - OPERATING INSTRUCTIONS..................................................................6-9
Pre-start Checklist ............................................................................................6-7
Rolling Machine w/o Engine Running................................................................6
Starting & Stopping Engine, Propelling Mower .............................................7-8
Starting & Stopping Mower Blades ....................................................................8
Starting & Stopping Wheel Drive........................................................................8
Setting & Releasing Parking Brake.....................................................................8
Cutting Height Adjustment..................................................................................9
SECTION 3 - MAINTENANCE INSTRUCTIONS ........................................................10-13
Service – After First Five Hours........................................................................10
Change Engine Oil ..........................................................................................10
Check Mower Blade ........................................................................................10
Check Mower Drive Belt .................................................................................11
Check Transaxle Drive Belts..........................................................................11
Service - Every 25 Operating Hours .................................................................11
Check Engine..............................................................................................11-12
Check Mower Components............................................................................12
Mower Blade Spindle – Lubrication .........................................................12-13
Mower Deck Linkage – Lubrication...............................................................13
Front Wheel Bearings - Lubrication ..............................................................13
Front Caster Wheel Pivot Shaft .....................................................................13
Parking Brake Pivot Bushings.......................................................................13
Service - Annually...............................................................................................14
Engine ..............................................................................................................14
Air Filter............................................................................................................14
Oil Filter............................................................................................................14
Engine Oil.........................................................................................................14
Transaxle..........................................................................................................14
Fuel Filter .........................................................................................................14
Storage – Out of Season....................................................................................14
SECTION 4 - ADJUSTMENTS AND REPAIR .............................................................15-22
Engine Adjustments & Repair...........................................................................15
Mower Deck & Components Adjustments.......................................................15
Mower Drive Belt Adjustment ...........................................................................15
Mower Drive Belt Replacement.........................................................................15
Belt Removal & Replacement.......................................................................15-16
Blade Brake.........................................................................................................16
Mower Deck Adjustment (Levelness - Side to Side 48” Deck)..................16-17
Mower Deck Adjustment (Front to Rear Pitch 48” Deck) ...............................17
Mower Deck Adjustment (Side to Side, 42” & 48” Decks)..............................18
Mower Deck Adjustment (Front to Rear Pitch, 42” Decks) ............................19
Mower Deck Timing Rod – (42” Decks)............................................................19
Wheel Brake Adjustment ...................................................................................19
Mower Blade Wear Limits..................................................................................20
Blade Sharpening...............................................................................................20
Blade Replacement ............................................................................................20
Battery Removal .................................................................................................21
Battery Installation .............................................................................................21
Battery Service & Charging...............................................................................21
New Battery Preparation...............................................................................21-22
Battery Testing ...................................................................................................22
TROUBLESHOOTING.................................................................................................23-24
Maintenance/Replacement Parts ......................................................................24
SERVICE SCHEDULE......................................................................................................25
WARRANTY......................................................................................................................26
PRIMARY MAINTENANCE..........................................................................................27-30
PRODUCT REGISTRATION FORM.................................................................................31
5
Section 1 - FAMILIARIZATION
PARKING
BRAKE
BRAKE
RELEASE
BUTTON
OPERATOR’S
SEAT
CHOKE
CONTROL
FUEL
TANK
ENGINE
SPEED
CONTROL
JOYSTICK
CONTROL
HANDLE
BLADE
SWITCH
KEY
SWITCH
DECK LIFT
HANDLE
DISCHARGE
DEFLECTOR
IMPORTANT! The figures and illustrations in
this manual are provided for reference only
and may differ from your specific model.
Contact your Snapper dealer if you have
questions.
FIGURE 1.1
1.1 INTRODUCTION
1.2 NOMENCLATURE
The nomenclature drawing above, Figure 1.1, shows the
essential parts of the SNAPPER YARD CRUISER. 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 YARD CRUISER. 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 and 3 of this manual and All SAFETY messages
on the YARD CRUISER and its attachments before
operating. SNAPPER recommends returning the YARD
CRUISER 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 - OPERATING INSTRUCTIONS
2.1.5. Clean exterior surfaces of cutting deck and
2.1 PRE-START CHECK LIST
engine of any accumulation of dirt, grass, oil, etc.
Keep engine air intake screen and cooling fins clear
at all times.
2.1.6. Add fuel to tank of the YARD CRUISER
outside where fumes can safely dissipate. Make
sure fuel filler cap is tight and vent is open after
refueling. See Figure 2.3. Refer to engine owner’s
manual for fuel specifications.
Make the following checks and perform the service
required before each start-up.
2.1.1. Check tires and add or release air as needed
to bring pressure to 12 P.S.I. in front and 12 P.S.I. in
rear tires.
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.
FUEL
FILLER
CAP
OPEN
VENT
ENGINE OIL DIPSTICK
SAFE LEVEL
AREA
FUEL
TANK
FIGURE 2.1
FIGURE 2.3
2.1.4. Check Blade switch to insure it works freely.
Switch is pulled “OUT” into the “ON” position for
blade engagement or pushed back “IN” into the
“OFF” position for blade disengagement. See
Figure 2.2. IMPORTANT: Disengagement stops the
blades rotation.
IMPORTANT: To roll the machine without the engine
running, pressure within the hydraulic pumps must be
released. Tilt seat up and move control lever down to
release pressure. NOTE: Control lever must be in the
“UP” position to drive machine. See Figure 2.4.
DO NOT USE CONTROL TO RELEASE PRESSURE AND
COAST DOWN SLOPES. RELEASE PRESSURE ONLY WHEN
MACHINE MOTION CAN BE CONTROLLED AND ENGINE OFF.
PUSH “IN” TO
DISENGAGE
PULL “OUT”
TO ENGAGE
MOVE CONTROL
LEVER UP TO
DRIVE MACHINE
BLADE
SWITCH
CONTROL
LEVER
BATTERY
MOVE CONTROL LEVER
DOWN TO ROLL MACHINE
FIGURE 2.4
FIGURE 2.2
7
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