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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 in the air conditioner cooling circuit, operate the air conditioner for several
minutes 2 or 3 times a month during the off-season. If the machine is left for a long period with the refrigerant
leaking, rust will form inside the system 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
Clean the air conditioner air filter and check the refrigerant. For details, see "CLEAN AIR CONDITIONER AIR
FILTER (PAGE 4-28)" and "CHECK QUANTITY OF REFRIGERANT (PAGE 4-29)".
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.
OPERATION MANUAL STORAGE
A pocket is provided at the rear of the operator's seat backrest for
keeping the Operation and Maintenance Manual.
Keep the Operation and Maintenance Manual in this pocket so that
it can be read whenever necessary.
TOOL BOX
The tool box is provided above the tandem on the left side of the
machine.
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