Snapper HZT21481BV Owner’s Manual
Safety Instructions & Operator's Manual for
MID-MOUNT
ZERO TURNING
HYDRO DRIVE
SERIES 1
MODELS
HZT21481BV
MODEL NUMBER EXPLANATION
I H I ZT I 21 I 481
MODEL DESIGNATION _
DRIVE SYSTEM TYPE
ENGINE HP *
- Homeowner Mid Mount 21 - Engine Horsepower
ZT - Zero Turn ng Hydro Drve
Thank you for buying a SNAPPER Productt 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 equip-
ment can be dangerous if used improperly. Also keep in mind that SAFETY requires careful use in accordance
with the operating instructions and common senset
NOTE: Specifications are correct at time of printing and are subject to change without notice.
* Actual sustained equipment horsepower will likely be lower due to operating limitations and environmental factors.
48 - 48" Mower Width
1 - Series Designation B- Briggs Engine
1 IBVI
ENGINE TYPE
SERIES DESIGNATION
MOWER DECK SIZE
Over Head Valve
SNAPPER.ooooo°o.GA.,3o2s3U,A
COPYRIGHT © 2005
SNAPPER A DIVISION OF SIMPUCITY MFG, INC
ALLRIGHTSRESERVED MANUAL No. 7"100079 (LR. 5/27"/2005)
IMPORTANT SAFETY INSTRUCTIONS A
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 can-
not answer to your satisfaction, call or write the Customer Service Department at SNAPPER Products Inc.,
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 attract-
ed to the machine and the mowing activity. Children
who have been given rides in the past may suddenly
appear in the mowing area for another ride and be run
over or backed over by the machine. 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 other thanthe opera-
tor.
2. DO NOT allow children inyard when machine is operated
(even with the blade OFF).
3. DO NOT allow children or others to ride on machine,
attachments or towed equipment (even with the blades
OFF). They may fall and be seriously injured.
4. DO NOT allow pre-teenage childrento operate machine.
5. ALLOW only responsible adults & teenagers with mature
judgment under close adult supervision to operate
machine.
6. DO NOToperate 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 comers,
shrubs, trees, or other objects that may obscure vision.
PROTECTION AGAINST 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 3feet) 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 aweighted load carrier inaccordance with
instructions supplied with a grass catcher. DO NOT oper-
ate machine on slopes exceeding 10 degrees (18% grade)
when equippedwith grass catcher.
9. DO NOT put your foot on the ground to try tostabilize the
machine.
10. DO NOT operate machine onwet grass. Reduced traction
could cause sliding.
11. Chose a low enough speed setting so that you will not
have to stop or shift on a slope. Tires may losetraction on
slopes even though the brakes are functioning properly.
12. DO NOT operate machine under anycondition wheretrac-
tion, steeringor stability is doubtful.
13. Always keep the machine in gear when going down
slopes. DO NOT shift to neutral (or actuate hydro roll
release) andcoast downhill.
PROTECTION AGAINST 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 suddenor 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 starting, stopping or turning on slopes. If machine
stops going uphill ortires lose traction, turn blades OFF
and back slowly straight down the slope.
PREPARATION
1. Read, understand, and follow instructions and warnings
in this manual and on the machine, engine and attach-
ments. Know the controls and the proper use of the
machine before starting.
2. Only mature, responsible persons shall operate the
machine and only after proper instruction.
3. Data indicates that operators age 60 and above, are
involved in a large percentage of mower-related injuries.
These operators should evaluate their ability to operate
the mower safely enough to protect themselves and oth-
ers from serious injury.
4. Handle fuel with extra care. Fuels are flammable and
vapors are explosive. Use only an approved fuel contain-
er. DO NOT removefuel cap or add fuel with engine run-
ning. Add fuel outdoors only with engine stopped and
cool. Clean spilled fuel from machine. DO NOT smoke.
5. Practice operation of machinewith BLADES OFF to learn
controls and develop skills.
6. Check the area to be mowed and remove all objects such
as toys, wire, rocks, limbs and other objects that could
cause injury if thrown by blade or interfere with mowing.
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 ................................................ 9-16
Starting & Stopping Engine, Blades & Parking Brake .................. 10-11
Starting & Stopping Mower Blades .................................... 11
Parking Brake ...................................................... 11
Cutting Height Adjustment ........................................... 12
Driving & Stopping Machine ....................................... 12-t3
Safety Interlock System Check ........................................ 13
SECTION 4- MAINTENANCE INSTRUCTIONS ............................ 14-t8
Change Engine Oil .................................................. t4
Check Mower Blade ................................................. t4
Check Mower Drive Belt ............................................. t5
Check Belt Tension ................................................. 15
Service - After every 25 Hours (Engine Components) ..................... 15
Service - After every 25 Hours (Mower Components) ..................... 15
Lubrication ..................................................... 15-t6
Mower Blade Spindle Lubrication ..................................... t5
Mower Deck Linkage Lubrication ...................................... t5
Front Wheel Bearings Lubrication ..................................... t6
Hydro Pump Lubrication ............................................. 16
Other Lubrication ................................................... 16
Before Operating Machine ........................................... 16
Annually - End of Season ......................................... 16-18
Engine Service ..................................................... 16
Fuel Filter Replacement ............................................. 17
Deck Removal ................................................... 17-18
Hydraulic Fluid Filters ............................................... 18
SECTION 5 - ADJUSTMENTS AND REPAIR ............................... t9-27
Neutral Position Adjustments ...................................... t9-20
Mower Deck Adjustment (Levelness) ................................ 20-21
Parking Brake Adjustment ........................................... 21
Traction Belt Tension & Replacement .................................. 22
Blade Brake/Electric Clutch Adjustment ................................ 22
Tracking Adjustment .............................................. 22-23
Mower Drive Belt Removal, Replacement & Adjustment ................... 23
Engine Adjustments & Repair ......................................... 24
Mower Blade Replacement ........................................... 24
Mower Blade Sharpening ............................................ 24
Battery Removal .................................................... 25
Battery Installation .................................................. 25
Battery Charging ................................................... 25
Battery Testing ..................................................... 26
New Battery Preparation ............................................. 26
Hydraulic System, Purging ........................................... 27
TROUBLESHOOTING ................................................. 28-29
SERVICE SCHEDULE ................................................... 30
Maintenance/Replacement Parts ...................................... 30
WARRANTY ........................................................... 31
PRIMARY MAINTENANCE ............................................. 32-35
PRODUCT REGISTRATION FORM ......................................... 36
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.
Section 1 - FAMILIARIZATION
BLADE SWITCH
CHOKE CONTROL
MOTION CONTROL
LEVER
RIGHT HAND FUEL
TANK .....
DECK LIFT LEVER
HOUR METER _
KEY SWITCH
ENGINE SPEED
CONTROL
_ MOTION CONTROL
LEVER
LEFT HAND FUEL
TANK
PARKING BRAKE
LEVER
CONTROL PANEL
(see inset)
DISCHARGE
DEFLECTOR
9
DECK LIFT PEDAL /
FIGURE 1.1
1.1 INTRODUCTION
This manual has been prepared for the operators of the
SNAPPER MID MOUNT ZERO TURNING HYDRO DRIVE.
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 unit and its attachments before
operating, SNAPPER recommends returning the unit to an
authorized SNAPPER dealer annually for inspection and
addition of any new devices which might upgrade the safe-
ty of the mower.
IMPORTANT
The figures and illustrations in this manual
are provided for reference only and may I
differ from your specific model. Contact
your Snapper dea er f you have quest ons.
1.2 NOMENCLATURE
The nomenclature information above, Figure 1,1, shows
the essential parts of the unit, 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 head-
ing, ENGINES - gasoline.
Section 2 - SAFETY MESSAGES AND SYMBOLS
KEDp_N_R"oO_'N_N_P_sTs
I MOTION CONTROL LEVER OPERATION I
GWBORENTIREGRASSCATCfl_
MUSTBEIHSTAL_DB_ORE
I_1tllI r l
WARNING ! GUARD OR GRASS
CATCHER MUST BE INSTALLED
I WEAR HEARING PROTECTION I
I PARKING BRAKE LEVER OPERATION I
WARNING ! AVOID SERIOUS INJURY OR DEATH ]
.I
Section 2 - SAFETY MESSAGES AND SYMBOLS
I CONTROL PANEL IDENTIFICATION I
I DANGER! ROTATING BLADES I
I FUEL GAUGE (2) I
I DANGER! ROTATING BLADES I
I FUEL TANK SELECT I
KEEP CHILDREN AND OTHERS OUT OF MOWING AREA
I IGNITION SWITCH I
Section 3 - OPERATING INSTRUCTIONS
3.1 PRE-START CHECK LIST
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.
FIGURE 3.1
3.1.8. Place mower in desired cutting height setting,
Grasp deck lift lever and move lever to desired cutting
height setting. 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
3.1.4. Check Blade Switch to insure it works freely.
See Figure 3.2.
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.
FIGURE 3.2
3.1.5. Clean exterior surfaces of cutting deck, engine
and pumps of any accumulation of dirt, grass, oil, etc.
Keep engine and pump air intake screens and cooling
fins clear at all times.
3.1.6. Add fuel to both tanks of the machine outside
where fumes can safely dissipate. Make sure both fuel
filler caps are tight, Note the fuel tank selector valve
behind left side of operator's seat, Refer to engine
owner's manual for fuel specifications.
3.1.7. Adjust position of operator's seat. The seat is
mounted to its base with two knobs and two bolts.
Loosen knobs and bolts, slide seat forward or back-
ward for most comfortable position, and retighten
hardware.
INSERT STOP PIN
INTO HOLES FOR
DESIRED CUTTING
FIGURE 3.3
IMPORTANT: This machine is equipped with hydrostat-
ic drive. The direction of motion and the speed of
motion are controlled by the left and right motion con-
trol 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 set-
ting and in an open area away from obstacles.
WARNING A
DO NOT allow operation of the machine by
untrained personnel.
Loading...