Komatsu WA480-8 Operation & Maintenance Manual page 342

MAINTENANCE PROCEDURE
7.
After cleaning, illuminate the inside of the element with an
electric bulb to check.
If the element has a small hole or thin part, replace it.
When installing the cover (2), check O-ring (7) for scratches or damages and replace O-ring with a new
one if any.
8.
Set cleaned outer element (4).
9.
Install cover (2) and fix it with clip (1).
10. Press the button of the dust indicator and return the yellow
piston.
If the air cleaner clogging caution lamp lights up or the yel-
low piston reaches the red line (7.5 kPa) immediately after
the cleaning of the air cleaner, you must replace the inner
and outer elements with new ones.
METHOD FOR REPLACING AIR CLEANER ELEMENT
1.
Remove clips (1) (3 pieces) and remove cover (2).
4-18
k k
CAUTION
MAINTENANCE