Komatsu PC138US-11 Operation & Maintenance Manual page 333

Hydraulic excavator
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MAINTENANCE
Do not remove inner element (6) at this time.
3.
When outer element (5) is removed, check that the inner
element does not come out of position and is not at an an-
gle.
If the inner element is inclined, push it in straight by hand
to the end.
4.
Clean dust sticking inside air cleaner body (7) and on cov-
er (3) by using a clean cloth or brush.
5.
If any dust is attached to vacuator valve (4) installed to
cover (3), remove it.
6.
Remove the inner element (6), then quickly install the new
inner element.
Install the inner element securely so that it does not move.
7.
Push new outer element (5) in straight with your hand into
the air cleaner body.
Hold the element, and rock it lightly up and down and to
the right and left while pushing it in, the element can be inserted easily.
8.
Install the cover (3) according to the following procedure.
1)
Check that O-ring (8) is fitted to cover (3).
2)
Align the cover (3) with the element.
3)
Lock the tip of hook (2) on the protrusion of the air
cleaner body.
4)
Always install the cover (3) so that vacuator (4) faces
right below (A).
5)
When cover (3) is installed, check that the clearance
between the air cleaner body and cover (3) is not too
large.
If the clearance is too large, remove cover (3), and
then install it again.
WENAM00111
MAINTENANCE PROCEDURE
4-17

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