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OPERATION
EXPLANATION OF COMPONENTS
PRECAUTIONS WHEN USING
To prevent any excessive load on the engine or compressor, use the air conditioner when the engine is running.
If the machine is used in places where there is dust or bad smell, recirculate the air inside the cab when using the
air conditioner.
To prevent leakage of refrigerant from the air conditioner cooling circuit, run the air conditioner for several minutes
2 or 3 times a month, even during the off-season. If the machine is left for a long time when the refrigerant is
leaking, rust will form on the inside and this will cause failure.
To protect your health, do not make the inside of the cab too cool and do not let the cold air flow contact your skin
directly for long periods.
Ventilate the cab from time to time.
If the temperature inside the cab is high, open the door or window to let the hot air escape and let fresh air in before
starting operation of the air conditioner.
PRECAUTIONS FOR INSPECTION AND MAINTENANCE
When carrying out inspection and maintenance of the air conditioner, follow the table given in "CHECK AIR
CONDITIONER (PAGE 4-33)".
To allow the air conditioner to show its full performance and provide a comfortable environment, have inspection
and maintenance carried out periodically.
When adding refrigerant or carrying out other maintenance, special tools and instruments are needed, so ask
your Komatsu distributor to carry out inspection and repair.
COOL BOX
When the cooling is being used, this can be used for keeping drinks
and other things cool.
When the heating is being used, it can be used to keep things
warm.
Do not use the cool box for things which smell or leak water or
break easily.
Do not use it as a holder for tools or other small objects.
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