Komatsu D65EX-12 Operation & Maintenance Manual page 192

SERVICE PROCEDURE
9. Install a new outer element (6) and secure it with the wing nut (4) and seal washer (5).
10. Remove the evacuator valve (11), clean with dry compressed air and then reinstall it.
11. Install the cover (3).
12. Press the button of dust indicator (1) to return the red pis-
ton to its original position.
13. Close the left engine side cover.
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MAINTENANCE