Air Conditioner Maintenance - Komatsu GALEO PC40MR-2 Operation & Maintenance Manual

ATTACHMENTS AND OPTIONS

AIR CONDITIONER MAINTENANCE

When Required
Check Refrigerant (Gas) Level
If the refrigerant used in the cooler 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 (gas), the cooling performance will be
poor. When operating the cooler at high speed with the engine at
full throttle, use the receiver sight glass (inspection window) to
check the condition of the refrigerant gas (Freon R134a) flowing in
the refrigerant circuit.
No bubbles in refrigerant flow: Suitable
Some bubbles in flow (bubbles pass continuously):
Lack of refrigerant
Colorless, transparent: No refrigerant
REMARK
When there are bubbles, the refrigerant gas level is low, so contact your refrigerant dealer to have refrigerant added.
If the air conditioner is run with the refrigerant gas level low, it will cause damage to the compressor.
Off Season Checks
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 compressor.
Inspection and Maintenance Items
Check,maintenance items
Refrigerant (gas)
Condenser
Compressor
V-belt
Blower motor, fan
Control mechanism
Piping mounts
Content of check,maintenance
Charge amount
Clogged fins
Operating condition
Damage,tension
Operating condition (does it when required make
abnormal noise?)
Operating condition (does it function normally?)
Mounting condition,looseness at tightening or
connecting portions,leakage of gas,damage
WARNING
AIR CONDITIONER
Guideline for maintenance
interval
Twise a year
(spring,autumn)
Every 500 hours
Every 4000 hours
Every 250 hours
When required
When required
When required
6 - 7