Komatsu PC138US-11 Operation & Maintenance Manual page 330

MAINTENANCE PROCEDURE
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.
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 it is at an angle, push it straight to the bottom with your
hand.
4.
After removing outer element (5), cover the inner element
(6) with a clean cloth or tape to prevent dirt or dust from
entering.
5.
Clean dust sticking inside air cleaner body (7) and on cover (3) by using a clean cloth or brush.
6.
If any dust is attached to vacuator valve (4) installed to
cover (3), remove it.
7.
When the outer element has been cleaned 6 times or used
for 1 year, replace it.
• When the element needs to be replaced
Replace the inner and outer elements with new ones.
For details, see METHOD FOR REPLACING ELE-
MENT.
• When the element does not need to be replaced
Clean the outer element. Continue the cleaning proce-
dure.
8.
Blow dry compressed air (Max. 0.2 MPa) from the inside of
the outer element along the pleats.
9.
Blow along the pleats from the outside, then blow again
from the inside.
10. Peel off a seal (9) every time after the cleaning of the ele-
ment.
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MAINTENANCE