Komatsu PC118MR-8 Operation And Maintenance Manual page 178

AIR CONDITIONER
Manual operation
1. Press the fan speed buttons (2) and adjust the fan speed.
Check that the monitor (7) displays the temperature (a) and
fan speed settings (b).
2. Press the air conditioner button (8) to turn the air
conditioner on.
3. Press the temperature setting buttons (3) and set the
desired internal cab temperature.
3-94
WEAM014802
FUNCTIONING
3