Komatsu PC80MR-5E0, Operation & Maintenance Manual

Page: 322 / 412

METHOD FOR CHECKING AND CLEANING RADIATOR FINS, OIL COOLER FINS,
FUEL COOLER FINS, AND AIR CONDITIONER CONDENSER FINS
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WARNING
If the compressed air, high-pressure water, or steam hits your body directly or dirt is scattered by use of
it, there is a danger of personal injury.
Wear the protective equipment such as the protective eyeglasses and dust mask.
NOTICE
• When using compressed air for cleaning, blow it from some distance as perpendicular to the core
as possible to avoid damaging the fins. Damage on the fins can cause water leakage and overheat-
ing.
• In a dusty job site, check the fins every day, regardless of the maintenance interval.
1.
Open engine hood (1).
2.
Securely lock the hood with hood support lever (2).
3.
Check the front and rear sides of radiator fins (3), oil cooler
fins (4), fuel cooler fins (5), and condenser fins (6). If there
is any mud, dirt, leaves, etc. stuck to the fins, blow it off
with compressed air.
NOTICE
Steam or water may be used instead of the com-
pressed air. However, when performing powerful
steam cleaning (high-pressure machine wash) of the
heat exchange equipment (radiator, oil cooler and fuel
cooler), maintain sufficient distance from the machine
when performing the work.
If steam cleaning (high-pressure machine wash) is per-
formed at close distance, there is a danger that the in-
ternal fins of the heat exchange equipment will be de-
formed, and this will cause early clogging and break-
age of the equipment.
4.
Visually check the rubber hose connected to the heat ex-
change equipment.
If the rubber hose is cracked or become fragile, ask your
Komatsu distributor for replacement.
5.
Check the hose clamps for looseness.
If the hose clamps are loosened, tighten them.
6.
Remove hood support lever (2) and fix it to the lever lock securely.
7.
Close engine hood (1).
RKA68180
RKA68970
MAINTENANCE PROCEDURE MAINTENANCE
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