Komatsu PW160-7K Series, Operation And Maintenance Manual

Page: 134 / 358

CONTROL LEVERS, PEDALS OPERATION
134
AUTO SWITCH
With this switch (5), the air flow, vents, and air source (RECIRC/
FRESH) are automatically selected according to the set tempera-
ture.
This switch also acts as the air conditioner main switch.
●
When auto switch (5) is pressed, the lamp at the top of the
auto switch lights up.
●
Normally, press this switch, then use temperature control
switch (3) to set the temperature, and run the air conditioner
under automatic control.
●
When the control is switched from automatic operation to
manual operation, it is then possible to operate the switch to
change the air flow, vents, and air source (RECIRC/FRESH).
When the manual control is used, the lamp at the top of the
auto switch goes out.
RECIRC/FRESH SELECTOR SWITCH
This switch (6) is used to switch the air source between recircula-
tion of the air inside the cab and intake of air from the outside.
● When switch (6) is pressed, the lamp at the top of the selector
switch lights up to show that air is being blown out.
● During automatic operation, the selection of inside air
(RECIRC) and outside air (FRESH) is carried out automati-
cally.
DISPLAY MONITOR
● This display monitor displays the status of temperature set-
ting (a), air flow (b), and vents (c).
●
When OFF switch (1) is pressed, the display of temperature
setting (a) and air flow (b) goes out, and operation stops.
RECIRC
The outside air is shut off and only the air inside the cab is circulated.
Use this position to carry out rapid cooling of the cab or when the outside air is dirty.
FRESH
Outside air is taken into the cab.
Use this position to take in fresh air or when carrying out demisting.