Komatsu PC490-11, Installation And Instruction Manual

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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).
REMARK
• The fresh air filter must be installed facing it in the cor-
rect direction.
• When installing, insert long end (L) of filter (5) into
duct (6) first. If short end (S) is inserted first, filter (5)
will get stuck with protrusion (B) of the sheet metal
• Keep the filter away from protrusion (B) of the sheet
metal and insert it from the top first.
If the insertion is not enough or the filter is forcibly in-
serted from bottom, it may be deformed or broken.
After inserting it, pull it to the inside of protrusion (C) of
duct (6).
5.
Close the cover and lock with the starting switch key.
Do not forget to remove the starting switch key after lock-
ing.
MAINTENANCE PROCEDURE MAINTENANCE
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