Komatsu Utility 69001, Operation & Maintenance Manual

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EXPLANATION OF COMPONENTS
OPERATION
3-50
The settings for each mode are retained in memory even when the starting switch is turned OFF.
However, in the following cases, the settings must be reset.
q
When the machine has been out of use for more than 7 days
q
When the battery voltage is extremely low
q
When there has been abnormal interference from outside
q
When the fan switch is turned OFF (the setting is not kept in memory with only the air conditioner switch)
If the air conditioner is used in the FRESH position, the inside of the cab will be pressurized and this will prevent
the entry of dust.
The higher the position of the fan switch, the more effective the pressurizing becomes.
METHOD OF OPERATION 3
When defrosting, set the temperature control switch so that all
lamps are red. This will improve defrosting and demisting.
WHEN NOT USING THE AIR CONDITIONER REGULARLY
Run the air conditioner in cooling or dehumidifi heating mode for several minutes from time to time to pre-
vent the loss of the oil film in various parts of the compressor.
REMARK
If the temperature inside the cab is low, the air conditioner may not work. In such cases, use the recirculated air to
warm up the inside of the cab, then turn the air conditioner switch on. The air conditioner will be run.
Switch
Condition of use
Fan switch
Air conditioner
switch
Temperature
control switch
FRESH/RECIRC
selector switch
Cooling
Rapid HI ON All blue RECIRC
Normal HI - LO ON
More than half
are blue
FRESH
Dehumidifying, heating HI - LO ON
More than half
are red
FRESH
Heating
Rapid HI OFF All red RECIRC
Normal HI - LO OFF
More than half
are red
FRESH
Defroster HI ON
More than half
are red
FRESH
Vetilation or pressurizing HI - LO OFF All blue FRESH