Komatsu PW98MR-10 Operation & Maintenance Manual page 318

MAINTENANCE PROCEDURE
Check
1.
Open engine hood (1). For detail, see "METHOD FOR
OPENING ENGINE HOOD (3-192)".
2.
Fix the cover with cover support lever (2).
NOTICE
Do not clean the element before the red piston is projected
into the transparent part of dust indicator (3).
If the element is cleaned frequently before the red piston
protrudes, the air cleaner cannot display its normal per-
formance and the cleaning effect decreases.
3.
Check if the red piston is projected into the transparent
part of dust indicator (3).
If the red piston is projected, clean the air cleaner element.
Clean outer element
1.
Open battery inspection cover (4) on the left side of the
machine.
2.
Remove clips (5) (3 pieces) and remove cover (6).
NOTICE
Never remove inner element (8). Dusts may enter, causing
the engine failure.
3.
Remove outer element (7).
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WENAM00061
MAINTENANCE
RKA47580