Method For Checking And Maintenance Air Conditioner - Komatsu PC45MR-5 Operation And Maintenance Manual

MAINTENANCE PROCEDURE

METHOD FOR CHECKING AND MAINTENANCE AIR CONDITIONER

(Machine with cab specification)
CHECK AND MAINTENANCE ITEMS
Some check and maintenance items of the air conditioner are to be performed periodically and the others are to
be performed when required. Perform the check and maintenance according to the following list, and use the air
conditioner effectively.
Check and maintenance
items
Refrigerant (gas)
Air conditioner condens-
er
Air conditioner compres-
sor
V-belt
Blower motor, fan
Control mechanism
Piping mounts
Even during the off-season, operate the air conditioner for 3 to 5 minutes once a month to maintain the oil film at
all parts of the air conditioner compressor.
4-52
Content of check, maintenance
Charge amount
Clogged fins
Operating condition
Damage, tension
Operating condition (Check for un-
usual noise)
Operating condition (Check that
function is normal)
Mounting condition, looseness at
tightening or connecting portions,
leakage of gas, damage
Guideline for maintenance interval
Twice a year (spring, autumn)
Every 500 hours
"METHOD FOR CHECKING AND CLEAN-
ING RADIATOR FINS, OIL COOLER FINS,
FUEL COOLER FINS, AND AIR CONDI-
TIONER CONDENSER FINS"
Every 4000 hours
Every 250 hours
"METHOD FOR CHECKING AND ADJUST-
ING AIR CONDITIONER COMPRESSOR
BELT TENSION"
When required
When required
When required
MAINTENANCE