Komatsu PC220LC -8 Operation & Maintenance Manual page 287

MAINTENANCE PROCEDURE MAINTENANCE PROCEDURE
NOTICE
Be sure to install the air cleaner element facing in the correct direction.
Install so that the bottom of the air cleaner element cylinder (face where no
hole is drilled) (B), (C) is at cover (3) end. If the direction of installation is
mistaken, there is danger that it will cause breakage of the air cleaner
element or serious damage to the engine.
8. Replace O-ring (8) of cover (3) with a new part.
NOTICE
When inserting the element, if the rubber at the tip is swollen or the outer
element is not pushed in straight, and cover (3) is assembled by force to
hook (2), there is danger that the hook and air cleaner body may be
damaged, so be careful when assembling.
9. Install cover (3) as follows.
1) Align cover (3) with the element.
2) Hook the tip of hook (2) to the protruding part of the air
cleaner body and lock it in position.
3) When locking hooks (2) in position, apply the hooks in turn
on opposite sides (top, bottom, left, right) in the same way
as when tightening bolts.
4) Always install cover (3) so that the evacuator (4) is facing
the ground (A).
5) When cover (3) is installed, check that the clearance
between the air cleaner body and cover (3) is not too large.
If it is too large, install again.
10. Replace seal (9) on the cover (3) with a new seal.
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MAINTENANCE MAINTENANCE