6-63
Cover
O-ring
Spring
By-pass valve
Return filter
Lower the bucket to the ground, stop the
engine, move the control lever back and
forth several times, and clean all over the
upper surface of the hydraulic oil tank.
Remove the bolts and take out the filter
case cover and O-ring.
Remove the spring and bypass valve.
Remove the filter element from the tank.
Check the element and the filter case
bottom for debris. Excessive amounts of
brass and steel particles can indicate a
failed hydraulic pump or a pump failure in
process. A rubber type of material can
indicated cylinder packing or other packing
failure.
The hydraulic oil filter in the filter case of
the hydraulic oil tank should be replaced
every 1000 operating hours or more often.
When the filter element is replaced,
please keep as follows.
Clean the inside of the filter case.
Place new element in the proper positions
inside the filter case.
Install the bypass valve and spring.
Make sure the element stand upright, and
check for complete contact of the element
bottom with the filter case bottom.
Install the O-ring and filter case covers.
Tighten them with bolt. Replace the
O-ring with new one if damaged.
11. HYDRAULIC OIL FILTER INSPECTION
PROCEDURE
1)
2)
3)
4)
5)
※
(1)
(2)
(3)
(4)
760F6WE24
Summary of Contents for HL955
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