Komatsu D155A-6 Operation & Maintenance Manual page 309

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SERVICE PROCEDURE
SERVICE PROCEDURE
2. Remove inspection cover (3) of the undercover on the bottom
rear of the machine as follows.
1) Remove 2 bolts (4) on the machine front end.
2) Hold down cover (3) and remove 2 bolts (5) on the machine
rear end gradually. (Rainwater or other accumulated water
may flow out, so be careful.)
3) Lower cover (3) gradually and open it. (The front side of the
cover is hinged.)
The strainer can be seen at top portion P.
3. Remove drain plug (P2) in the strainer cover, and drain the oil
(approx. 4 liters (1.06 US gal)) collected inside the piping.
4. Loosen mounting bolt (6) of the power train strainer, and
remove cover (7).
5. Remove spring (8), then remove strainer (9).
6. Remove any dirt stuck to strainer (9), then wash it in clean
diesel oil or flushing oil. Wash the removed parts and the inside
of the case at the same time.
7. Loosen mounting bolt (10) of the scavenging pump strainer,
then remove cover (11).
8. Remove strainer (12).
9. Remove any dirt stuck to strainer (12), then wash it in clean
diesel oil or flushing oil. Wash the removed parts and the inside
of the case at the same time.
10. Install the strainers in their original position.
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MAINTENANCE
MAINTENANCE
(F)Front of the machine

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