Komatsu PC30MR-5 Operation & Maintenance Manual page 92

EXPLANATION OF COMPONENTS OPERATION
It goes out when the lock lever is set in FREE position.
LOCK LEVER AUTOMATIC LOCK CANCEL PILOT LAMP
The lock lever automatic lock cancel pilot lamp lights up when
the lock lever automatic lock cancel switch is set to CANCEL
position.
GAUGE DISPLAY
ENGINE COOLANT TEMPERATURE GAUGE
Engine coolant temperature gauge displays the engine coolant
temperature in 19 graduations.
When the graduation of gauge is in green range (B) during op-
erations, it is normal.
When the graduation of gauge is in red range (A) during opera-
tions, the overheat prevention system is actuated, and engine
coolant temperature caution lamp (D) lights up in red.
Red range: Abnormal
The overheat prevention system is actuated.
Graduation of gauge lights up in red.
Engine coolant temperature caution lamp (D) lights up in red.
Green range: Normal
Graduation of gauge lights up in green.
Engine coolant temperature caution lamp (D) lights up in blue.
White range: Low temperature
Graduation of gauge lights up in white.
When the graduation of gauge goes beyond white range (C), color changes to green.
Engine coolant temperature caution lamp (D) lights up in white.
OFF: Abnormal
If communication error occurs or data is not received, the graduation of gauge goes out.
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WENAM00150