25. Procedures for Maintenance
3-59
25-7-4. Replacing the hydraulic oil return filter element
1) Open the engine hood rear cover.
2) Loosen three bolts to remove the side cover.
3) Clean around the cover.
4) Slowly loosen the bolts to release the internal pressure
and remove the cover.
5) Remove the filter and install the valve to a new filter,
then install the filter into the tank.
IMPORTANT
Do not allow any dirt to enter the tank when installing
the return filter.
6) Clean around the cover using waste cloth and check the
O-ring. If the O-ring is damaged, replace it with a new
one and then reinstall the cover.
7) Reinstall the side cover and tighten its bolts securely.
8) Close the engine hood rear cover.
•
The hydraulic oil and the tank are hot and under
pressure at operating temperature. Never replace
the oil immediately after operation is stopped.
Wait until the tank has cooled enough to permit
you to touch its surface with your bare hand.
• When removing the oil supply port cap, slowly
loosen it to relieve the internal pressure, then re-
move the cap carefully.
• If the cover of the tank is removed too quickly,
the cover may pop out due to the spring force ap-
plied to the filter. Also, the hydraulic oil may
spout out if the pressure inside the tank has not
been gradually relieved.
Slowly loosen the bolts to remove the cap.
Cover
015629-00E
ValveReturn filter Cover
015630-00E
Engine hood
rear cover
Bolts
Side cover
015628-00E
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