MAINTENANCE
MAINTENANCE SCHEDULE TABLE
4–31
CHECK AND MAINTENANCE AIR CONDITIONER
CHECK AND MAINTENANCE AIR CONDITIONER:ALL-K500-001K01A
CHECK LEVEL OF REFRIGERANT (GAS)
CHECK LEVEL OF REFRIGERANT (GAS):PC220-K512-21DK00A
k
WARNING
If the refrigerant used in the air conditioner gets into your eyes or on your hands, it may cause loss of
sight or frostbite. Do not touch the refrigerant. Never loosen any part of the refrigerant circuit.
Do not bring any flame close to any point where the refrigerant gas is leaking.
If there is a lack of refrigerant (Freon 134a), the cooling perfor-
mance will be poor. When the engine is running at full throttle
and the cooler is running at high speed, look at the sight glass
(1) (inspection window) in the refrigerant hose fitting to check
the condition of the refrigerant gas (Freon 134a) flowing in the
refrigerant circuit.?
(A) No bubbles in refrigerant flow: Suitable
(B) Some bubbles in flow (bubbles pass continuously):
Lack of refrigerant
(C) Colourless, transparent: No refrigerant
REMARK
When there are bubbles, the refrigerant gas level is low, so
contact your Komatsu distributor to have refrigerant added. If
the air conditioner is run with the refrigerant gas level low, it will
cause damage to the compressor.
INSPECTION DURING OFF SEASON
Inspection During Off Season:ALL-K500-20DK00A
Even during the off-season, operate the air conditioner for three to five minutes once a month to maintain the oil
film at all parts of the compressor.
INSPECTION AND MAINTENANCE ITEMS
Inspection and Maintenance Items:ALL-K500-208K00A
Check, maintenance items
Content of check, maintenance
Guideline for maintenance
interval
Refrigerant (gas)
Charge amount
Twice a year (spring, autumn)
Air conditioner condenser
Clogged fins
Every 500 hours
Compressor
Operating condition
Every 4000 hours
V-belt
Damage, tension
Every 250 hours
Blower motor, fan
Operating condition(does it make abnormal
noise?)
When required
Control mechanism
Operating condition (does it function normally?) When required
Piping mounts
Mounting condition, looseness at tightening or
connecting portions, leakage of gas, damage
When required
Summary of Contents for PC210-10 DEMOLITION BASE SPEC.
Page 2: ......
Page 14: ...PRODUCT INFORMATION FOREWORD 1 12...
Page 75: ...OPERATION GENERAL VIEW 3 5...
Page 159: ...OPERATION EXPLANATION OF COMPONENTS 3 89...
Page 251: ...OPERATION MACHINE OPERATIONS AND CONTROLS 3 181...
Page 332: ...MAINTENANCE SCHEDULE TABLE MAINTENANCE 4 22 26 Close engine hood 1...
Page 392: ...END OF SERVICE LIFE MAINTENANCE 4 82...
Page 393: ...SPECIFICATIONS 5 1 SPECIFICATIONS SPECIFICATIONS ALL 0000 001K04A SPECIFICATIONS...
Page 397: ...SPECIFICATIONS SPECIFICATIONS 5 5 PC210 10...
Page 398: ...SPECIFICATIONS SPECIFICATIONS 5 6 PC210LC 10...
Page 444: ...RECOMMENDED ATTACHMENT OPERATIONS ATTACHMENTS AND OPTIONS 6 46...
Page 445: ...REPLACEMENT PARTS 7 1 REPLACEMENT PARTS Replacement parts ALL 0000 001K16A REPLACEMENT PARTS...
Page 453: ...8 1 INDEX...
Page 457: ...COLOPHON 18...