Komatsu D65EX-12 Operation & Maintenance Manual page 83

EXPLANATION OF COMPONENTS
HEATING OPERATION
When the heating operation is carried out, the inside of the cab is heated, and at the same time the drinks inside
the hot and cool box can be heated.
HEATING (RECIRC)
When the control switch and lever are operated as shown in
the diagram, warm air is sent out. Use this position when
strong cooling is needed.
Place levers (1) and (4) in the position shown in the dia-
gram.
Set switch (3) to the desired position.
HEATING (FRESH)
If the air inside the cab is no longer fresh, set FRESH/RECIRC
selector lever (1) to FRESH to bring in fresh air. Keep the other
switches at the same positions as for heating (RECIRC). In this
position, the inside of the cab is pressurized to prevent the
entry of dust.
REMARK
If the cab is not heated up sufficiently, turn FRESH/RECIRC
selector lever (1) back to RECIRC. This increases the heating
effect.
DEHUMIDIFYING AND HEATING
Push switch (2). When temperature control lever (4) is placed
at the central position, dry warm air blows out.
Keep the other switches at the same positions as for heating
(FRESH).
REMARK
If this is used in spring and fall on rainy days when the air
inside the cab is damp, there is no problem of the windows
misting up, and the cab be warmed up to a comfortable tem-
perature.
3-36
OPERATION