Komatsu WA70-7, Operation And Maintenance Manual

Page: 236 / 302

5.8 Maintenance procedure
When required Maintenance
5-34
WA70-7 – VENAM02003
Cleaning the filter insert
Depending on the degree of clogging, the filter insert of the air
cleaner may be cleaned with pressurised air or with water to
which a mild detergent has been added.
NOTICE

If the air cleaner pilot lamp lights up again a short time after
cleaning, replace the filter insert.

Do not clean the safety filter.

For details see
“Changing the filter insert of the air cleaner,
changing the safety filter” (5-36)
.

Cleaning with pressurised air
ATTENTION

Flying dust particles may cause injury to the eyes. Wear
safety goggles when cleaning the filter inserts with pressur-
ised air.

Hazardous dusts may cause lung irritation.

Wear a dust mask when cleaning filter inserts with pressur-
ised air.
Blow out the air cleaner insert with dry pressurised air (max.
6 bar) from the inside to the outside. Move the air jet up and
down at minimum distance of 3 cm to the paper. The clean-
ing process ends when no more dust is ejected.
Do not knock the insert for cleaning, and do not knock the
insert against other objects.

Cleaning with water and detergent
To clean off oil, grease, soot, etc., the filter insert may be
washed in warm water (max. 50 °C) with a mild detergent
after blowing out. Move the insert back and forth in the solu-
tion.
Then flush the filter insert from the inside to the outside with
clean water (max. 3 bar) and dry at a maximum temperature
of 50 °C.
GK032241