Komatsu PC138US-11 Operation & Maintenance Manual page 279

OPERATION
METHOD FOR OPERATING DEFROSTER
1.
Press fan switch (2) and adjust the air flow rate.
At this time, check that set temperature (a) and air flow
rate (b) are displayed on "A/C Setting" screen of the moni-
tor.
2.
Press vent selector switch (4) and set the vent display to
(f) or (g) shown in the figure.
3.
Press FRESH/RECIRC selector switch (6) and set it to
FRESH mode.
WENAM00111
HANDLE AIR CONDITIONER
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