Komatsu WA800-3E0, Руководство по эксплуатации и техническому обслуживанию

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SERVICE PROCEDURE
MAINTENANCE
4-70
CAUTION
When removing the filter cover, keep the filter pressed
down by hand. The filter cover is being pushed by a
spring, so if the filter cover mounting bolts are removed
carelessly, there is danger that the filter cover will spring
out and cause injury.
9. Remove mounting bolts (5) of the 3 filter covers (4) at the
top of the tank, then remove the covers.
When doing this, the cover may fly off because of the force
of spring (6), so keep the cover pushed down while remov-
ing the bolts.
10. Remove spring (6) and bypass valve (7), then take out ele-
ment (8).
11. Check that there is no foreign material inside the tank, then
clean it.
12. Fit a new O-ring to filter cover (4).
13. Install the new element, then set bypass valve (7), spring
(6), and cover (4) in the tank.
14. When installing the cover bolts, push down the cover and
tighten the bolts evenly.
15. Add engine oil through oil filler port (F) to the specified
level, then install air bleed plug (1) on filter case. The cap
of the hydraulic tank remains removing, until the air bleed-
ing of the piston pump finishes.
16. Check the oil level, then add oil to the specified level. For
details, see “CHECK OIL LEVEL IN HYDRAULIC TANK,
ADD OIL (4-47)“.
17. Check that there is no leakage of oil from the filter cover
mount.