Komatsu H70051 Series Operation & Maintenance Manual page 101

OPERATION EXPLANATION OF COMPONENTS
SECONDARY STEERING PILOT LAMP
When the secondary steering pilot lamp is lit in green while the
engine is running or the machine is operating, it is normal.
If it does not light up, there is a trouble in the secondary steer-
ing circuit.
Move the machine to a safe place, stop the engine, and per-
form the inspection and maintenance.
EMERGENCY HST PUMP DRIVE PILOT LAMP
The emergency HST pump drive pilot lamp lights up when the
emergency HST pump drive switch is turned on. At the same
time, the alarm buzzer sounds intermittently.
STEERING LOW OIL PRESSURE CAUTION LAMP
(if equipped)
Steering low oil pressure pilot pump lights up in red when the
steering pressure is low.
REMARK
While the engine is stopped, the steering pressure is low and
the steering low pressure pilot lamp lights up, but this does not
indicate any abnormality.
TRACTION LEVEL DISPLAY
The traction control operating state is displayed at the traction
level display.
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