Komatsu WA480-8, Руководство по эксплуатации и техническому обслуживанию

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3.
Loosen the bolts and remove cover (2).
4.
Remove the cap of oil filler port (F).
5.
Place a container under drain plug (3) to catch the drained
oil.
6.
Remove drain plug (3).
7.
Open drain valve (4) gradually to drain the oil.
8.
After draining the oil, close drain valve (4) and tighten
drain plug (3).
Tightening torque
Drain plug (3): 68.6 ± 9.8 Nm {7.0 ± 1.0 kgm}
Drain valve (4): 63.7 ± 14.7 Nm {6.5 ± 1.5 kgm}
9.
Remove bolts (5) (6 pieces) and remove cover (6).
When doing this, if the O-ring of the cover is damaged or
deteriorated, replace it.
10. Hold the top of rod (7) and pull it up to remove strainer (8).
11. Remove any dirt stuck to strainer (8), then wash it in flush-
ing oil.
If strainer (8) is damaged, replace it with a new one.
12. Refill with the specified quantity of hydraulic oil through oil
filler port (F), then install the cap.
13. Check the hydraulic oil level.
Check that it is at the specified level. For details, see
“METHOD FOR CHECKING OIL LEVEL IN HYDRAULIC
TANK, ADDING OIL (4-42)”.
MAINTENANCE MAINTENANCE PROCEDURE
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