1.
Park the machine in the hydraulic oil
inspection position on the level and firm
ground, and then stop the engine.
2.
Use the starter key to release the lock,
open the right side cover and support it
with the stay.
3.
Clean around the filter mounting area to
prevent foreign materials such as dust
from entering into.
4.
Press the valve head on top of breather
cap (6) several (5 to 7) times to release
pressure from the hydraulic oil tank.
5.
Remove bolt (1) of the tank upper cover
and then remove cover (2).
6.
Remove spring (3), valve (4) and element
filter (A) from the tank.
7.
Replace O-ring (5) on the mounting
surface of cover (2).
8.
Clean the removed parts with light oil.
9.
Attach the element by the reverse
procedures of the above steps 5 and 6.
10. Attach cover (2).
Tightening Torque:
20.7 to 25.3 N
･
m (15.3 to 18.7 lbf
･
ft)
11. Start the engine, set the machine in the
hydraulic oil inspection position by moving
each control lever, and check the hydraulic
oil level.
12. Release the support stay, close the right
side cover, and lock it with the starter key.
４
［
4. INSPECTION AND MAINTENANCE
］
4-59
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