Komatsu 06253 Operation & Maintenance Manual page 129

Hydraulic mining shovel
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OPERATION
Key T3: Recirculating Air/Fresh Air
Switches from recirculated air to fresh air and vice versa.
Key T4: Blower Control
Switches on the manual blower control. Press plus/minus key to
select the following speeds: 1*) -2-3-4-5.
1*) to 5: adjusts the blowers to speeds 20%, 40%, 60%, 80%,
100%.
Off*): Switches off the blowers or switches to automatic.
Automatic: The blowers are controlled automatically based on the
interior temperature.
Key T5: Automatic climate control
Switches on the automatic temperature control.
Key T2+T3: Temperature indication.
Shows the inside temperature for 10 seconds. If pressed a sec-
ond time, it shows the outside temperature for 10 seconds
(optional)
Key T3+T5: Reheat (optional)
Starts reheat mode fro 3 minutes. (Duration adjustable)
Key T3+T4: Controller OffSwitches of all controll functions
and the display.
*) The following blower steps are disabled when the automatic cli-
mate control is on.
2-,3-Step: off
continuously adjustable blower: Off, 1
Air Flow Control
For defrosting the windshield close the slide in the seat base.
The whole air flow is now directed to the windshield.
To direct the air flow to your feet, open the slide in the seat
base.
3.5 OPERATING THE HEATER, VENTILATION AND AIR CONDITIONING
129

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