Komatsu PC138US-11 Operation & Maintenance Manual page 332

MAINTENANCE PROCEDURE
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.
16. Check the air cleaner clogging caution lamp (1) on the ma-
chine monitor.
If it light up just after cleaning of the elements has been
finished, replace the inner and outer elements.
METHOD FOR CHANGING AIR CLEANER ELEMENT
NOTICE
• Do not clean and reuse the inner element. When replacing the outer element, replace the inner ele-
ment with a new one at the same time.
• If the outer element and cover are installed while the inner element is not installed properly, the out-
er element may be damaged.
• The sealing portion of the improper part lacks precision, and allows the entry of dust, which leads
to damage of the engine. Do not use such improper part.
Replace the outer element in the following procedure.
1.
Open the battery inspection cover on the left side of the
machine, remove the hooks (2) (3 places), and remove the
cover (3).
2.
Hold the outer element (5), rock it lightly up and down and to the right and left, and pull it out while turning it
to the right or left.
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MAINTENANCE