Komatsu PC138US-11 Operation & Maintenance Manual page 104

EXPLANATION OF COMPONENTS OPERATION
PREHEATING PILOT LAMP
The preheating pilot lamp is displayed while the engine is pre-
heated before started.
When the temperature is low (in cold weather) and the auto-
matic preheating function operates, the preheating pilot lamp
lights up. When the preheating is completed, it goes out.
Automatic preheating is for a maximum of approximately 30
seconds.
WIPER PILOT LAMP
The wiper pilot lamp shows the operating state of the wind-
shield wiper.
The operation of the wiper switch is indicated by the pilot lamp
as follows.
When ON lights up: Windshield wiper operates continuously
When INT lights up: Windshield wiper operates intermittently
OFF: Windshield wiper stops
For the position of the wiper switch, see "MACHINE MONITOR
EQUIPMENT NAME (3-6)".
SWING LOCK PILOT LAMP
Swing lock pilot lamp informs that the swing lock is being actu-
ated.
Pilot lamp lights up: The swing lock is being actuated.
When the swing lock switch is turned on (LOCK), this lamp
lights up.
When the swing parking brake cancel switch is turned to "Can-
cel" position, this lamp flashes.
REMARK
The swing motor is equipped with a disc brake that mechani-
cally stops the rotation. When the swing lock pilot lamp is lit,
the brake remains applied.
AUTO-DECELERATION PILOT LAMP
The auto-deceleration pilot lamp shows the setting of the auto-
deceleration either ON or OFF.
The pilot lamp display when the auto-deceleration switch is op-
erated is as follows.
Pilot lamp lights up: Auto-deceleration ON
Pilot lamp goes out: Auto-deceleration OFF
For the location of the auto-deceleration switch, see "MA-
CHINE MONITOR EQUIPMENT NAME (3-6)".
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