35
2 Hydraulic/Hydrostatic
2.1 Hydraulic Oil Filter:
Change the hydraulic filter now and every 150 hours
after the initial change. Lubricate the filter cartridge
seal with system fluid.
2. 2 Hydraulic Oil Level:
If oil is visible in the oil level sight glass the level
satisfactory.
If additional oil is required use only 10W30 API
classification SJ oil. Fill to the top or maximum
check point.
2.3 Hoses and Pipes:
Make a visual inspection of all hydraulic lines and
fittings for leaks. Check that steel lines do not touch
one another.
2.4 Cylinders:
Inspect cylinders for leaks. Extend cylinders and
check for rod damage.
2.5 Hydraulic Functions:
Check that the following operate properly: control
valve float position, auxiliary hydraulics, pedals and
hydraulic cylinders.
2.6 Pumps & Motors, Leakage:
Inspect pumps and motors for leaks.
2.7 Oil Cooler:
Inspect the oil cooler for leaks, fin damage or clogged
with dirt. If necessary flush fins with compressed air.
2.8 Fan Drive:
Inspect fan, bolts, v-belt and guard to ensure there is
no buildup of dirt, trash, or wear. Use compressed air
to clean the area.
3 Final Drive
3.1 Oil Level:
Check lubricating oil level. If necessary add 10W30
API classification SJ oil.
3.2 Drive Chain Condition:
Check drive chains for any sign of wear or damage.
Check lubrication oil in housing for signs of
contamination.
3.3 Hydrostatic Motor Mounting Bolts:
Check torque 85 - 90 ft. lbs. (115 - 122 Nm)
3.4 Bearing End Play:
Check both the idler sprocket and axle bearings for
loss of bearing pre-load. If necessary, adjust the
bearings for zero end play.
3.5 Axle Seal:
Inspect axle seal area. Clean area of debris build up
and visually check for seal damage, replace as
required.
4 Controls and Safety Equipment
4.1 Control Levers, Operation and Linkage:
Check that the steering levers operate freely without
binding, they return to neutral when released and the
machine travels in a straight line with both levers in
forward position. Ensure control levers lock in neutral
with seat bar up. Lubricate linkage with a silicone
based lubricant.
4.2 Hydraulic Controls, Operation and Linkage:
Check that the hydraulic controls, foot pedals or hand
controls operate freely without binding. Before leaving
the operator seat, ensure the controls are locked.
Seat Bar Switch Check: Raise the seat bar and check that the
hydraulic controls are locked in neutral.
Seat Belt Switch Check:
Unbuckle the seat belt and check
that the hydraulic controls are locked in neutral.
Seat Switch Check: With the seat bar down and the seat belt
connected loosely around you, raise your weight off
the seat and check that the controls are locked in
neutral.
4.3 Engine Throttle Control:
Check that the throttle control operates freely without
binding or slackening off due to vibration.
4. 4 Parking Brake:
Check that the parking brake engages and completely
disengages. The park brake automatically engages with
seat bar up.
4. 5 Lift Arm Supports:
Check that the lift arm supports operate without
binding.
NOTE: Ensure the lift arm supports are fully retracted
before raising or lowering the lift arms.
4. MAINTENANCE
WARNING
To avoid personal injury:
never repair or tighten
hydraulic hoses or
fittings with the engine
running or the system
under pressure.
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