Komatsu D475A-5E0 Operation & Maintenance Manual page 325

SERVICE PROCEDURE SERVICE PROCEDURE
5. Remove bolts (6), then remove cover (7) and take out the
strainer.
6. Wash the strainer in clean diesel oil or flushing oil.
7. Install the strainer to its original position.
8. Add oil through oil filler port (F) to the specified level.
9. After adding oil, check that the oil is at the specified level. For
details, see "CHECK OIL LEVEL IN HYDRAULIC TANK, ADD
OIL (PAGE 3-96)".
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MAINTENANCE MAINTENANCE