Komatsu PC22MR-3, Operation & Maintenance Manual

Page: 233 / 312

MAINTENANCE
MAINTENANCE PROCEDURES
4-25
5. Slightly strike the filtering element (4) on the palm of your
hand, in such a way as to remove the dust, and blow
compressed air on the inner surface, keeping the air jet at
a distance of approximately 15 cm and the pressure below
4-5 bars.
6. After the cleaning operations, inspect the filtering surface
for damage by introducing a lamp into it and carefully
check the front gaskets. If the cartridge is damaged,
change it.
7. Remove the cloth or adhesive tape used to cover the air
connector inside the filter body.
8. Install the cleaned cartridge (4) or a new cartridge.
9. Position the cap (3) with the drain valve (5) facing
downwards and secure it with the couplings (2).
10. Press the button on the filter clogging indicator (1) so that
the red piston returns to its original position.
NOTICE
q
If shortly after installing the cleaned cartridge the red
piston of the clogging indicator is visible again, it is
necessary to change the cartridge.
q
Change the filtering element if it has been cleaned for
5 times or used for one year.
WEAM014500