Komatsu D65EX-12 Operation & Maintenance Manual page 231

MAINTENANCE
6. Remove seal (6) installed to the frame.
7. Remove mounting bolts (8) of filter (7), then remove
cover (9).
8. Take out element (10).
9. Clean the inside of the case and the removed parts, then
install a new element.
Always use a genuine Komatsu element.
10. Install drain plug (3).
11. After installing, loosen air bleed plug (11), start the
engine, and when oil oozes out, tighten plug (11).
12. CLose filter cover (4), then tighten bolt (5).
NOTICE
When installing seal (6), always close filter cover (4)
first.
If the filter cover is closed after installing the seal, the
seal will be damaged.
13. Install frame seal (6).
14. Add the replacement amount of engine oil through oil
filler port (F).
15. After filling with oil, check that the oil is at the correct
level. For details, see "CHECK OIL LEVEL IN HYDRAU-
LIC TANK, ADD OIL (PAGE 4-45)".
SERVICE PROCEDURE
4-63