Komatsu H75051 Operation & Maintenance Manual page 328

MAINTENANCE PROCEDURE
10. Install the cover (3) and fix it with clip (2).
11. Push the button of dust indicator.
The yellow piston returns.
12. Close the engine side cover (1) on the right side of the ma-
chine.
Even though the outer element has not been cleaned up to 6 times, if the yellow piston of dust indicator laps
over the red zone (7.5 kPa, {0.076 kg/cm
METHOD FOR REPLACING AIR CLEANER ELEMENT
1.
Open the engine side cover (1) on the right side of the ma-
chine.
2.
Remove the clips (2) (4 places) and remove the cover (3).
3.
Pull out the outer element (4).
Do not remove the inner element (5) at this time.
4.
Clean the interior of the air cleaner body, cover (3) and va-
cuator valve (6) with a clean cloth, a whisk or others.
5.
Remove the inner element (5), then install the new inner
element immediately.
4-18
2
}) soon after the cleaning, replace both the inner and outer elements.
MAINTENANCE