Komatsu PC700LC-11, Operation & Maintenance Manual

Page: 368 / 442

METHOD FOR CLEANING RECIRCULATION AIR FILTER
1.
Remove wing bolts (1) from the inspection window at the
bottom rear left inside the operator's cab.
2.
Take out the recirculation air filter.
3.
Clean the filter with compressed air.
If there is oil on the filter, or if the filter is extremely dirty,
wash it in a neutral detergent. After rinsing it in water, dry it
thoroughly before using it again.
Replace the filter with a new one every year. If the clog-
ging of the filter cannot be removed by blowing with air or
washing in water, replace the filter immediately.
REMARK
• The recirculation air filter must be installed in the correct direction.
• Install the filter so that protrusion (A) of filter (2) matches the groove of holder (3).
4.
Install the recirculation air filter.
METHOD FOR CLEANING FRESH AIR FILTER
1.
Unlock cover (4) at the rear left of the operator's cab with the starting switch key.
2.
While holding cover (4) open, remove filter (5) inside it.
REMARK
• When removing, insert your finger into dent (D) of duct
and pull it toward you.
If you grasp the filter with excessive force, it may be
deformed or damaged.
• If the filter is damaged or deformed, replace it with
new one.
3.
Clean the filter with compressed air.
Set the compressed air pressure below 0.49 MPa
{5 kg/cm
2
} and blow it in the arrow direction.
If there is oil on the filter, or if the filter is extremely dirty,
wash it in a neutral detergent. After rinsing it in water, dry it
thoroughly before using it again.
Replace the filter with a new one every year. If the clog-
ging of the filter cannot be removed by blowing with air or
washing in water, replace the filter immediately.
If the filter is damaged or deformed, replace it with new
one.
4.
After cleaning, return filter (5).
MAINTENANCE PROCEDURE MAINTENANCE
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