Komatsu PC290LC-6K Operation & Maintenance Manual page 200

Hydraulic excavator
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24. SERVICE PROCEDURE
Rinse filter with clean water from the fine filter side.
6.
Dry filter, compressed air may be used, but apply air from fine filter
side.
7.
Refit filter element ensuring coarse filter side is facing outwards.
Notice.
The normal cleaning interval is 100 hours, however if the ma-
chine is used at a dusty side, shorten this interval.
Clean recirculation air filter (air conditioner option only.)
1.
Remove 4 bolts on the upper side of the luggage tray and remove
bracket
.
2.
Remove 4 bolts on the lower side and lift away luggage tray
radio is fitted, disconnect radio connector first by removing radio (us-
ing special tools provided).
3.
Pull filter elements
4.
Clean as fresh air intake filter (note recirculation air filter is homog-
enous and can be fitted in either direction).
5.
Re-install.
3-54
out of air conditioner housing.
. If

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