Komatsu PC800-8 Operation & Maintenance Manual page 240

Hydraulic excavator
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MAINTENANCE PROCEDURE
Checking
If air cleaner clogging monitor (1) of the monitor panel flashes,
clean the air cleaner element.
Replacing
q Replacing element, O-ring
If one year has passed since installing the element or if air
cleaner clogging monitor (1) on the monitor panel flashes
immediately after the element is cleaned, replace the outer
element, inner element, and O-ring.
q Replacing evacuator valve
Replace it if it is damaged or the rubber is markedly
deformed.
Cleaning Outer Element
NOTICE
Before and after cleaning the element, do not leave or keep it in direct sunlight.
1. Open the engine hood at the front side of the machine,
remove 6 hooks (2), then remove cover (3).
NOTICE
q Never remove the inner element (6). It will allow dirt to
enter and cause failure of the engine.
q Do not use a screwdriver or other tool.
2. Hold the outer element (5), rock it lightly up and down and
to the left and right, and rotate the element to the left and
right to pull it out.
3. When the outer element (5) has been removed, check that
the inner element has not come out of position and is not at
an angle. If is is at an angle, insert your hand and push it in
straight.
4. After removing the outer element (5), cover the inner ele-
ment (6) with a clean cloth or tape to prevent dirt or dust
from entering.
5. Wipe off or brush off the dirt stuck to cover (3) and the
inside of the air cleaner body (7).
4-20
MAINTENANCE
4
4

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