Komatsu D51EX-24, Operation & Maintenance Manual

Page: 244 / 382

HANDLE AIR CONDITIONER
Ventilation while cooling
• 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 driving smoke out.
Temperature control
• For reasons of health, the optimum setting for cooling is considered to be that you feel slightly cool when
you enter the cab (5 to 6 °C lower than the ambient temperature).
Be careful to select the appropriate temperature.
• When outside air temperature and humidity are high, if machine is used for a long time with the grille at vent
of the front window defroster open, water drops stick to the outside surface of the glass and visibility gets
worse. In this case, close the grille or change its direction.
• If the cold air form the air conditioner blows directly against the machine monitor, water may condense on
the machine monitor screen. In that case, change the angle of the vent.
EXPLANATION OF AIR CONDITIONER EQUIPMENT
(1) Air-conditioning mode selector switch
(2) Blower selector switch (3) Temperature control switch
AIR CONDITIONER MODE SELECTOR SWITCH
Air conditioner mode selector switch is used for switching the
mode of the air conditioner.
(A) Cooler
It can provide cooling. (It cannot provide heating.)
(B) Heater
It can provide heating. (It cannot provide cooling.)
(C) Dehumidification/Defrost (Air conditioner)
It can provide cooling and heating.
HANDLE AIR CONDITIONER OPERATION
3-188