Clean Internal And External Air Filters Of Air Conditioner System (Only For Machines Equipped With Air Conditioner) - Komatsu PC128UU-2 Operation & Maintenance Manual

Hydraulic excavator
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MAINTENANCE
CLEAN INTERNAL AND EXTERNAL AIR FILTERS OF AIR CONDITIONER
SYSTEM (ONLY FOR MACHINES EQUIPPED WITH AIR CONDITIONER)
If compressed air, high-pressure water, or steamhit your body directly, or they cause dirt or dust to be
blown up, there is a hazard of serious injury. Always use safety glasses, dust mask, or other protective
equipment.
NOTICE
The guide for cleaning the filter is 500 hours, but if the machine is used on an extremely dusty jobsite,
reduce the maintenance interval and clean the filter more frequently.
When washing the floor, be careful not to get water on the air conditioner system.
1.
Remove cover (1).
2.
Loosen wingnut (2), remove cover (3), then pull filter (4)
out to the front to remove it.
3.
Clean filter (4) with compressed air. If there is oil stuck to
the filter or it is extremely dirty, wash it in a neutral agent.
After washing, dry it thoroughly before using it again.
4.
Clean sponge filter (5) (1 each installed at the front and
rear) in the same way.
REMARK
If the clogging of the filter cannot be removed by blowing with
compressed air or washing in water, replace the filter with a
new part.
5.
Install cleaned filter (4) and sponge filter (5).
6.
Install cover (3) with wing nut (2).
7.
Install cover (1).
WARNING
MAINTENANCE PROCEDURE
4-55

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