•The engine exhaust, some of its constituents, and certain vehicle components contain or emit chemicals
known to the State of California to cause cancer, birth defects or other reproductive harm.
•This unit is equipped with an internal combustion engine and should not be used on or near any unimproved
forest-covered, brush-covered, or grass-covered land unless the engine’s exhaust system is equipped with a
spark arrester meeting applicable local or state laws (if any). If a spark arrester is used, it should be maintained in effective working order by the operator.
•In the State of California, the above is required by law (Section 4442 of the California Public Resources
Code). Other States may have similar laws. Federal laws apply to federal lands. A spark arrester muffler
may be available.
The Tank Hydrostatic Zero-Turn Synchro-Steer Commercial Riding Mower provides superb maneuverability, mid-mount cutting capability for professional landscapers, commercial lawn service companies,
professional turf managers and golf course superintendents. The machine incorporates many safety features that should be studied by all operators and maintenance personnel before use. The list of safety
precautions should receive particular attention.
This manual presents all of the operating and maintenance instructions necessary to keep your mower at
peak efficiency. If operated and maintained properly, your mower will give dependable service.
CAUTION:
Only thoroughly trained persons should operate and maintain this mower. This machine can
cause serious injury to anyone who misuses it and does not understand its operation. For their
personal safety, all operators and maintenance personnel are required to read this entire manual
before operating the mower.
Hazard control and accident prevention are partially dependent upon the design and configuration of the equipment. Notwithstanding, these factors are also dependent upon the awareness,
concern, prudence and proper training of the personnel involved in the operation, transport,
maintenance and storage of the equipment.
WARNING-For the State of California
•A person shall not sell, offer for sale, lease, or rent to a person any equipment that is powered by an internal
combustion engine subject to Section 4442 or 4443, and not subject to Section 13005 of Health and Safety
Code, unless that equipment has a permanent writing label attached that is in plain view to the operator that
states, ‘WARNING-Operation of This Equipment May Create Sparks That Can Start Fires Around Dry
Vegetation. A Spark Arrestor May be Required. The Operator Should Contact Local Fire Agencies For
Laws or Regulations Relating to Fire Prevention Requirements.’
NOTE: The engine manufacturer is responsible for all engine-related issues with
regards to performance, power-rating, specifications, warranty and service.
Please refer to the engine manufacturer’s owner’s/operator’s manual,
packed separately with your unit, for more information.
MODELS LISTED IN THIS MANUAL
S6031 S7237
53AI8DU6050 53AI8DU8050
3
GENERAL SAFETY
OPERATIONS
A. DANGER
1.Do not operate machine in confined areas where
exhaust gases can accumulate.
2.Do not operate machine without mower chute deflector in place and operational.
3.Do not carry passengers.
4.Do not operate nor store machine in areas where open
flames, electrical switches and circuit breakers are
present.
B. WARNING
1.Do not operate machines under the influence of alcohol or drugs.
2.Do not operate machines without all guards and
safety devices in place and functional.
3.Do not start machines if there are fuel or oil leaks or
spillage — clean it up.
4.Do not operate machines near spilled or leaking
fuels.
5.Do not stop or park machine over dry leaves, grass,
debris, etc. that could be combustible.
6.Use extreme care when backing up.
7.Do not operate machine on slopes greater than 20
degrees (36%).
8.Do not operate machines on slopes when traction is
reduced (wet grass, ice, soft ground, loose ground,
leaves, pine needles, debris, etc.).
9.Avoid turning downhill if possible, go slowly and use
extra care when turning downhill.
10. Do not operate machines during reduce visibility
(low light, fog, rain, etc.).
11. Do not operate machines with non-approved attachments.
12. Do not operate machines that are damaged.....have
machine repaired.
13. Do not operate machines that have not been properly
maintained.
14. Use only replacement parts that are the same or
equivalent to the original equipment.
15. Do not modify machines or any of their components,
especially the engine governor!
16. Do not operate machine for more than 2 hours without hearing protection.
C. CAUTION
1.Use proper protective equipment when operating
machine (gloves, boots, and hearing protection are
recommended).
2.Read entire machine Operator’s Manual.
3.Make sure operators are fully trained in the safe use
of the machine.
4.Follow all safety instructions when using the
machine.
5.Keep all safety signs legible and properly installed.
6.Do not check for hydraulic leaks with any part of the
body.
7.Do not add fuel to a machine when the engine is running and/or the exhaust system is hot.
8.Keep machine clean and free of debris, grass, leaves,
oil, grease, etc.
9.Place speed control pedals in the neutral position, set
park brake, disengage P.T.O., turn engine off, and
remove ignition key before you dismount from
machine.
10. Use machines laterally or diagonally across slopes,
avoid going downhill when possible.
11. Go slowly and use extra care when descending
slopes.
12. Disengage P.T.O. when crossing surfaces such as
asphalt, concrete, loose ground, sand, gravel, etc.
13. Use extra care when loading and unloading machines
from trucks or trailers.
14. Equipment driven on public roads must comply with
state & local ordinances, SAE J137, and ANSI/
ASABE S279.
SAFETY PRECAUTIONS
A. General
1.Read this Operator’s Manual before starting the
mower. Study the controls and learn the proper
sequence of operation.
2.Do not allow anyone to operate or maintain this
machine who has not read this manual. Never permit
children to operate this machine.
3.Never carry passengers.
4.Do not remove any shields, guards or safety devices.
If a shield, guard or safety device is damaged or does
not function, repair or replace it before operating the
mower.
5.Always wear safety glasses and safety shoes when
operating or maintaining this mower. Do not wear
loose-fitting clothing.
6.Disconnect the spark plug wires and remove the key
from the ignition to prevent the engine from acciden
tally starting before performing any maintenance on
this mower.
7.Never run the engine indoors without adequate ventilation. Exhaust fumes are deadly.
8.To avoid serious burns, do not touch the engine,
exhaust pipe or muffler while the engine is running or
until it has cooled after it has been shut off.
9.The liquid in the battery is dilute sulfuric acid.
Always wear safety glasses and rubber gloves when
working on the battery. Do not overfill the battery.
10. Lead-acid batteries generate hydrogen and oxygen
gases which form an explosive mixture. Keep sparks
and flames away at all times.
11. When looking for oil leaks, never run your hand over
hydraulic hoses, lines or fittings. Never tighten or
adjust hydraulic hoses, lines or fittings while the sys
tem is under pressure. If high-pressure oil penetrates
the skin, the oil must be removed within a few hours
by a doctor familiar with this form of injury or seri
ous complications may result.
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-
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4
B. Related to Fuel
1.Fuel is highly flammable and its vapors can explode
if ignited. Please respect it.
2.Do not smoke or permit others to smoke while handling fuel.
3.Always use approved containers for fuel and fill
slowly to decrease the chance of static electricity
buildup and spillage.
4.Store fuel in well ventilated and unoccupied buildings away from sparks and flames.
5.When dispensing gasoline into approved containers,
place the container on the ground when refueling to
avoid a possible static electricity ignition of fuel
vapors.
6.Do not fill containers while it is inside a vehicle,
trunk, the bed of a pickup or floor of a trailer.
7.Always shut off the engine and permit it to cool
before removing the fuel tank cap.
8.Always fill the fuel tank outdoors away from sparks
and flames.
9.If the fuel container spout will not fit inside the fuel
tank opening, use a funnel.
10. When filling the fuel tank, stop when the fuel reaches
one inch from the top. This space is necessary for fuel
expansion.
11. Wipe up any spilled fuel.
12. Do not use gasoline fuel classified above E-10
(I.E., E-15 through E-85) as it could cause severe
damage to the engine and fuel system.
Do not overfill
.
C. Related to Batteries
Batteries are stored electrical energy devices that may be serviceable with removable caps (the electrolyte levels can be
checked), or may be non-serviceable (no attempt should be
made to open the vents).
Batteries may contain lead (Pb) and sulfuric acid, and they
must be re-cycled and not disposed of nor abandoned. Sulfu
ric acid can cause severe burns, and in the event of contact,
the areas should be flushed with water and a physician con
tacted. Battery cases should not be punctured. Lead is poisonous and is contained within the positive and negative
terminals as well as within the battery’s internal grid-work of
plates and active materials.
Explosive gases are generated when batteries are re-charged,
so sparks, flames and heat sources should be avoided. Loose
connections at the battery terminals can produce sprks and
heat...connections to the terminals must be kept tight, and the
terminals and battery surfaces kept clean of acids and corro
sion. If batteries are re-charged or “jumped” from external
sources, make sure that the connections are made properly
and in the correct sequence...connect to the positive terminal
of the good battery first, then connect that to the positive ter
minal of the weak battery. The third connection should be to
the negative terminal of the good battery, followed by the
negative terminal of the weak battery. If sparks are observed
or heating of the wiring or connectors is detected, disconnect
-
in reverse order (I.E., the negative terminal of the weak bat
tery first). Batteries should be re-charged at a constant voltage...generally 14.5 +/- 0.5 volts DC for a nominal 12 volt
DC battery.
D. When Mowing
1.Keep adults, children and pets away from the area to
be mowed.
2.When operating this mower in the forward direction,
do not allow the speed control pedals to rapidly
return to Neutral. Always operate the pedals
smoothly and avoid any sudden movements when
starting or stopping.
3.If the mower is equipped for side discharge, never use
the mower without the discharge chute installed and
placed in the down position.
4.Always remove debris and other objects from the
area to be mowed.(
reduce traction.)
5.Mow only in daylight.
6.Watch for holes, sprinkler heads and other hidden
hazards.
7.Avoid driving too close to trees, creeks, ditches, sand
traps and other obstacles.
8.Before backing up, check behind you and watch
where you’re going.
9.Always reduce speed when making a turn, and when
grass is wet.
10. Always mow laterally or diagonally across slopes,
never up and down the slope. Do not operate on steep
(greater than 20 degrees, 36%) slopes and slow down
before turning.
11. Be careful when crossing gravel paths or roadways.
Always turn off the blade clutch switch and wait until
the blades stop rotating and raise the cutting deck to
the transport position. Always allow other vehicles to
have the right-of-way.
-
-
-
12. If you hit a solid object while mowing, turn off the
blade clutch switch, place the speed control pedal in
the neutral position, move the throttle to slow, set the
parking brake, shut off the engine and take the key
from the ignition switch. Inspect for damage. Repair
any damage. Make sure the blades are in good condi
tion and that the blade bolts are tight before restarting
the engine.
13. Never leave the mower unattended without: turning
off the blade clutch switch; placing the speed control
pedals in the neutral position; moving the throttle to
slow; setting the parking brake; shutting off the
engine and taking the key from the ignition switch.
14. Never walk or stand on the discharge side of a mower
with the engine running. Turn off the blade clutch
Note
: debris and loose grass will
-
-
5
switch if another person approaches while you are
operating the mower.
15. Never attempt to operate the traction unit without
the mowing deck attached.
16. Keep the mower and especially the engine and
hydraulic components clean and free of grease,
grass and leaves to reduce the chance of fire and to
permit proper cooling.
4.Seat belts are attached to the movable portion of
the seat, and therefore the seat-mounting the pivot
means must be latched to the frame of the machine.
DANGER:
If ROPS and OPDs are folded down or missing, seat belts
shall not be fastened. Worn or damaged seat belt assem
blies must be replaced prior to operator use.
-
E. Towing
1.Tow only with a machine that has an approved hitch
designed for towing. Do not attach towed equip
ment except at the hitch point.
2.Follow the manufacturers recommendation for
weight limits for towed equipment and towing on
slopes.
3.Never allow children or others in or on towed equipment.
4.On slopes, the weight of the towed equipment may
cause loss of traction and loss of control.
Note: 5 degrees (9%) maximum slope.
5.Travel slowly and allow extra distance to stop.
F. Operator Protection System -Foldable
1.This machine is equipped with an Operator Protective System (OPS), which includes:
a. A Roll Over Protective Structure (ROPS) or
Operator Protective Device (OPD) which may
be of the fixed or folding configuration
b. Seat belt assembly with retractable function
2.ROPS and OPDs are structures designed to provide
a crush-resistant space for the operator when prop
erly seat-belted within the designated seating area
of the machine in the event of a machine tip-over
or roll-over. Folding ROPS and OPDs shall be
used in their fully upright and locked configura
tions except in those circumstances whereby they
need to be momentarily folded-down to avoid con
tact with items such as tree limbs, clothes lines,
guy wires, buildings, etc. At other times and condi
tions, ROPS and OPDs shall be in their fully
upright and locked configurations.
DANGER:
Damaged ROPS and OPDs must be replaced prior to
operator use!
3.Seat belts shall be used and shall be properly fastened about the operator’s waist at all times, except
when the ROPS or OPDs are:
- not properly installed and/or not properly secured
onto the machine
- damaged in such manner that their structural
integrity has been compromised
- not in their fully upright and locked position
5.Brush Guards and canopies can afford additional
protection for the operator. The Brush Guard can
-
-
-
-
-
deflect tree limbs, clothes lines, and other obstacles
that otherwise could come in contact with the
ROPS and OPDs. Contact of ROPS and OPDs by
items such as tree limbs, clothes lines, guy wires,
and buildings, could create hazardous conditions
whereby the machine could experience a tip-over
or roll-over. The canopy can provide protection for
the operator from some environmental exposure
(sunlight, rain, etc.). Work lights may be available.
6.The ROPS and seat belt are integral parts of this
machine and should not be tampered with, modified
in any manner, or removed.
7.The ROPS extends above and behind the operator
position, and therefore the operator must be aware
of potential contact of the ROPS with items such as
trees, buildings, doorways, clothes lines, utility
wires, etc., that could cause the machine to upset or
rollover....use caution in (or avoid) areas where the
ROPS could come in contact with any structures,
trees, etc.
8.The ROPS and seat belt add additional mass that
elevates the machine’s Center of Gravity (C.G.)
which negatively affects the machine’s stability and
traction....use extra caution when operating on
slopes.
9.Inspect the ROPS and seat belt assemblies on a regular basis for damage and improper opera-
tion....replace all components that are damaged or
are not functioning properly with authorized
replacement parts.
10. Failure to use the seatbelt properly could result in
serious injury or death if an accidental overturn
occurs. In order for the ROPS to be effective, the
seat belt must be securely fastened around the oper
ator at all times when the operator is on the
machine. Contact with the ROPS during an overturn
could cause serious injury or death.
11. The ROPS will not prevent the machine from upsets
or roll overs.
12. Only approved attachments should be used on this
machine.
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G. Suspension Seat
1.This unit is equipped with an adjustable suspension
seat system, which includes a seat with retractable
seat belt assembly, a low profile mechanical sus
pension, and an Operator Presence Sensor (OPS).
-
6
2.The seat bottom is covered with a heavy-duty vinyl
Steering column
Figure. 1
adjustable handle
Figure. 2
adjustable handle
Figure. 3
fabric. An OPS in the form of a switch, is integrated
into the seat bottom and is connected to the
machine electrical system. The seat back is also
covered with a heavy-duty vinyl fabric, it adjusts to
recline up to 16 degrees, (lever actuated on opera
tor’s left side). The armrests are adjustable for operator comfort (knob inside armrests actuated from
the bottom). Roller bearing single-locking tracks
provide easy repositioning fore/aft over 8” (lever
actuated on lower right).
3.A mechanical suspension mechanism incorporates
weight/ride adjustment controls for operators in the
125 to 275 lb. weight range, pull upward on the
fold-out lever and “pump up” to increase seat load
capacity and firmness. Push the lever downward to
reduce the firmness and load capacity. Just center
the orange-colored indicator to achieve your exact
weight setting.
4.A retractable seat belt assembly with inertia-lock is
attached to the “ride” portion of the seat frame.
When the seat latch is released, the complete seat
assembly and seat base can be pivoted forward this provides access to the battery, hydraulic reser
voir and filter, as well as some of the electrical system and control linkages. The seat base must be
latched prior to machine operation.
-
incorporates a “ratchet” feature to allow the handle
to be positioned as desired. See Figure 2 below.
3.The Steering column also has a swing-away function to enhance entry and egress. A ratchet-type
adjustable handle is used to release or tighten the
steering column which will allow it to swing away
-
or swing back. See Figure 3 below.
H. Steering Control
Note:The seat base must be secured by latching,
otherwise, the seat assembly could tilt forward. The
Operator Presence Sensor must be connected to the
electrical wiring harness.
1.This machine has an adjustable Steering column. It
can be adjusted rearward/upward or forward/down
ward by repositioning the column. See Figure 1
below.
-
2.The Steering wheel has an adjustable tilt feature so
that the steering wheel can be infinitely adjusted to
individual needs. An adjustable handle is used to
release or apply clamping action that secures the tilt
steering wheel in the desired position. The handle
7
SAFETY DECALS AND LABELS
WARNING
SHIELD MISSING
DO NOT OPERATE
Part Number: 00030635
Part Number: 777S30503
Part Number: 01002166
Part Number: 777S33087
Part Number: 02005110
Part Number: 777S33086
Part Number: 02002693
! WARNIN
Maximum weight on hitch is 50 lbs.
Maximum towed load is 500 lbs.
Never allow passengers on towed equipment.
Loss of traction can occur on slopes, 5 (9%) maxi
Travel slowly and allow extra distance to stop.
Use caution during turns to avoid jack-knifing.
Use extra caution when operating in reverse.
Do not modify hitch or repair hitch. Replace hitch
Part Number: 777S32598
Part Number: 777D12837
8
SPECIFICATIONS
GENERAL INFO.
Controls:Engine ignition and start switch; throttle; choke; speed control pedals;
electric blade clutch switch; parking brake; mower deck lift
Steering:14” diameter steering wheel coupled to hydraulic steering valve and
cylinder
Parking Brake:Mechanical linkage brake to internal drum brakes
Seat:Adjustable seat and armrests. 7" Adjustment (fore-aft)
Frame:2" Steel structural tube and plate, all welded construction
InstrumentationHour meter, Tachometer, Maintenance-minder
Front Wheels:60”, & 72” deck, 15 x 7.50 - 8
Drive Wheels:60", & 72” deck, 24 x 12 - 12
Tire Pressure:10-12 psi Rear, 20-25 psi Front
Fuel Tank:Two 6.5 gallon w/individual shutoff valves
Ground Speed:0-12 + MPH forward. 0-5 MPH reverse
Net Weight:1470 lbs. w/60" deck, 1540 lbs w/72” deck
ENGINE INFO.
Engine:31HP Kawasaki w/ 60” deck, 31 & 37 HP Kawasaki w/ 72” deck
Type:Vertical crankshaft air cooled V-Twin
Air Cleaner:Dual Paper Element with rain cap
Lube System:Pressurized with oil filter
Hydraulic System:In tank filter, 4 quart capacity, aluminum oil cooler w/ 12VDC fan
Starter:12-volt electric
Blade Brake Clutch:Electric
TRACTION DRIVE
INFO.
Traction Drive:Engine to two variable-output hydraulic pumps each connected to indi-
vidual wheel motors
CUTTER DECK INFO.
Cutter Deck;Drive:60", & 72” Belt Driven with Reconfigurable features
Deck Lift:Hydraulic w/pin lock for height adjustment
Cutting Height:1" to 5" in 1/4” increments
No. of Blades3, belt-driven, power take-off from engine
9
OPERATING INSTRUCTIONS
Figure. 4Figure. 5
Ignition Switch
Electric Blade
Clutch Switch
Tach and
Hour Meter
Engine throttle
Choke Lever
Power Implement Lift
A.General
1.When Mowing:
a.Keep adults, children, and pets away from the
area to be mowed.
b.When operating this mower, in the forward direc-
tion, do not allow the speed control pedals to rapidly return to Neutral. Always operate the pedal
smoothly and avoid any sudden movements
when starting and stopping.
c.If the mower is equipped for side discharge,
never use the mower without the discharge chute
installed and placed in the down position.
d.Always remove debris and other objects from the
area to be mowed (Note: debris and loose grass
will reduce traction).
e.Mow only in daylight.
f.Watch for holes, sprinkler heads, and other hid-
den hazards.
g.Avoid driving too close to trees, creeks, ditches,
sand traps, and other obstacles.
h.Before backing up, check behind and watch
where you are going.
i.Always reduce speed when making a turn, and
when grass is wet.
j.Always mow laterally or diagonally across
slopes, never up and down the slope. Do not
operate on steep (greater than 20 degrees 36%)
slopes and slow down before turning. Avoid turn
ing downhill if possible, start at the bottom and
work up to the top. Use extra care and go slowly
when turning downhill.
k.Be careful when crossing gravel paths or road-
ways. Always turn off the blade clutch switch
and wait until the blades stop rotating and raise
the cutting deck to the transport position. Always
allow other vehicles to have the right of way.
l.If you hit a solid object while mowing, turn off
the blade clutch switch, place the speed control
-
pedals in the neutral position, move the throttle to
slow, set the parking brake, shut off the engine,
and take the key from the ignition switch. Inspect
for damage. Repair the damage. Make sure the
blades are in good condition and that the blade
bolts are tight before restarting the engine.
m. Never leave the mower unattended without
observing the following: turn off the blade clutch
switch, placing the speed control pedals in the
neutral position, moving the throttle to slow, set
ting the parking brake, shutting off the engine
and taking the key from the ignition switch.
n.Never walk or stand on the discharge side of the
mower when the engine is running. Turn off the
blade clutch switch if another person approaches
while you are operating the mower.
o.Never attempt to operate the traction unit without
having the mowing deck attached.
p.Keep the mower and especially the engine and
hydraulic components clean and free of grease,
grass, and leaves to reduce the chance of fire and
permit proper cooling.
2.Safety Awareness when Mowing
a.Do not operate on steep slopes, those above 20
degrees (36% slope).
b.Avoid turning downhill if possible, if not use
extra care and go slowly.
c.Avoid turning when going downhill, traction is at
a minimum going downhill.
d.Do not operate with discharge side of the mower
toward streets, buildings, playgrounds, parking
lots, other machines, animals, and other people.
e.Avoid operation or use extreme care if the trac-
tion surface is wet, unstable, or slippery.
f.Use extra care when grass clippings, leaves, pine
needles, or debris are present as traction can be
reduced.
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10
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