Komatsu PC1250-11, Original Instructions Manual, Page: 334 / 452

8.
Replace the O-ring (8) of cover (3) with a new one.
NOTICE
When inserting the element into the body, if the rubber at
the tip is swollen or the outer element is not pushed in
straight, and cover (3) is installed by force with hook (2),
there is a danger that the hook and air cleaner body will be
damaged, so be careful when installing.
9.
Install the cover (3) according to the following procedure.
1) Align the cover (3) with the element.
2) Lock the tip of hook (2) on the protrusion of the air
cleaner body.
3) Lock the hooks (2) diagonally, (top and bottom, right
and left) in the same way as when tightening the bolts.
4) Always install the cover (3) so that the vacuator valve
(4) faces to the bottom (A).
5) When the cover (3) is installed, check that the clear-
ance between the air cleaner body and cover (3) is not
too large. If the clearance is too large, install it again
correctly.
10. After replacing the element, press the reset button (9) of
dust indicator to return the yellow indicator plate to its origi-
nal position.
CHECK AND REPLACE VACUATOR VALVE
Check vacuator valve (4) for damage and deformation of its rubber portion.
If the vacuator is damaged or its rubber part is deformed, replace it with a new one.
MAINTENANCE PROCEDURE MAINTENANCE
4-18