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Hydraulic System
Maintenance
Maintaining the Auxiliary
Hydraulic System
Hydraulic fluid type: AW-32 hydro fluid
Changing the Auxiliary Hydraulic
Reservoir Fluid and Filter
Service Interval: After the first 100 hours
Every 250 hours thereafter
1.
Run the machine for approximately 15 minutes
to purge any extra air out of the hydraulic
system.
2.
Completely raise and lower the tines 3 times to
purge the air.
3.
Shut off the engine, engage the parking brake,
wait for all moving parts to stop, and remove
the key.
4.
Allow the engine to cool.
5.
Carefully clean the area around the front of the
auxiliary pump and fill cap; also clean around the
filter. It is important that no dirt or contamination
enter hydraulic system.
6.
Unscrew the suction hose from the pump fitting,
clean around the pump fitting, and allow oil to
drain.
7.
Unscrew the filter to remove and allow oil to
drain.
Important:
Apply a thin coat of oil on the
surface of the rubber seal.
Turn the filter clockwise until rubber seal
contacts the filter adapter, then tighten the filter
an additional 2/3 to 3/4 turn.
8.
Install the hose and torque to 37 ft-lb (50 N-m).
9.
Remove the cap and check the hydraulic-fluid
level in the reservoir.
10.
If necessary, add AW-32 hydraulic fluid until the
level reaches the FULL COLD line located on
the reservoir tank.
Note:
If the fluid is at ambient-air temperature,
about 24°C (75° F), fill only to the FULL COLD
level.
11.
Install the hydraulic reservoir cap and tighten it
until snug.
Note:
Do not overtighten the reservoir cap.
12.
Start the engine and raise and lower the tines.
Lower the tines to the ground and refill the
reservoir to the FULL COLD line.
13.
Check the fluid level again; repeat steps
through
10
until the level does not decrease.
40
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