Komatsu PC138USLC Operation & Maintenance Manual page 153

DETAILED CONTROLS AND GAUGES
Stopping Manual Operation
Press OFF switch (1). Operation stops.
Operation with Cold Air to Face and Warm Air to Feet
To operate with cold air blowing to the face and warm air blowing
to the feet, set as follows.
1. Press fan switch (2) and adjust the air flow. When doing this,
check that temperature setting (a) and air flow (b) are displayed
on monitor (7).
2. Press vent selector switch (4) and set the vent display on the
display monitor to the display shown in the diagram on the
right.
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OPERATION