Komatsu PW98MR-10, Operation & Maintenance Manual

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HANDLE AIR CONDITIONER
NOTICE
• When running in the air conditioner, always start with the engine running at low speed. Never start
the air conditioner when the engine is running at high speed. It will cause failure of the air condi-
tioner.
• If water gets into the control panel or sunlight sensor, it may lead to unexpected failure. Take care
not to let water get on these parts. In addition, never bring any open flame near these parts.
• For the auto function of the air conditioner to work properly, always keep the sunlight sensor clean
and do not leave anything around the sunlight sensor that may interfere with its sensor function.
• When the air conditioner is not being used every day, to
prevent loss of the film of oil at various parts, run the air
conditioner with the engine at low speed from time to time
and perform cooling or dry heating for several minutes.
• When the temperature inside the cab is low, the air condi-
tioner may not work. In this case, circulate recirculation air
to warm the inside of the cab. After that, turn the air condi-
tioner switch ON, the air conditioner will work.
• If any abnormality is detected in any equipment or sensor
used on the air conditioner, the air conditioner system cau-
tion lamp lights up on the monitor screen. If the air condi-
tioner system caution lamp lights up, ask your Komatsu distributor for inspection and repair.
VENTILATION
• When running the air conditioner for a long time, turn the lever to FRESH position once an hour to perform
ventilation and cooling.
• If you smoke when the air conditioner is on, the smoke may hurt your eyes. In such case, open the window
and turn the lever to FRESH for a while for ventilation and cooling to drive smoke out.
TEMPERATURE CONTROL
For reasons of health, the optimum setting for cooling is considered to be when it feels slightly cool (5 – 6 °C)
lower than the ambient temperature) when you enter the cab.
Be extremely careful to select the appropriate temperature.
RKA48880
HANDLE AIR CONDITIONER OPERATION
3-198
WENAM00061