Komatsu 830E-AC Shop Manual page 995

Status / Warning Indicator Light Symbols
Amber indicator lights alert the operator that the indi-
cated truck function requires some precaution when
lighted.
Red indicator lights alert the operator that the indi-
cated truck function requires immediate action by
the operator. Safely stop the truck and turn the
engine off.
DO NOT OPERATE THE TRUCK WITH A RED
WARNING LIGHT ILLUMINATED!
Refer to Figure 5-8 and the descriptions below it for
explanations of the symbols. Location of the symbols
are described by rows (A - E) and columns (1 - 6).
A1. High Hydraulic Oil Temperature
This red warning light indicates
high oil temperature in the
hydraulic tank. Continued opera-
tion could damage components
in the hydraulic system.
The light illuminates at 107°C
(225°F)
If this condition occurs, the operator should safely
stop the truck, move the directional control lever to
PARK, and operate engine at 1200 - 1500 rpm to
reduce system temperature.
If temperature gauge does not move into the
green range after a few minutes, and the red
overhead indicator light does not go out, stop the
engine and notify maintenance personnel imme-
diately.
N05070 10/06
B1. Low Steering Pressure
When the key switch is turned
ON, the low steering pressure
warning light will illuminate until
the steering system hydraulic
pressure reaches 15 858 kPa
(2300 psi). The warning alarm
will also turn on, and both will remain on, until the
accumulator has been filled with hydraulic oil.
During truck operation, the low steering pressure
warning light and warning horn will turn on if the
steering system hydraulic pressure drops below
15 858 kPa (2300 psi).
• If the light illuminates momentarily (flickers) while
turning the steering wheel while at low truck
speed and low engine rpm, truck operation may
continue. This may be considered normal.
• If the indicator light illuminates at higher truck
speed and high engine rpm, DO NOT OPERATE
THE TRUCK.
If the low steering warning light continues to illu-
minate and the alarm continues to sound, low
steering pressure is indicated. The remaining
pressure in the accumulators allows the operator
to control the truck to a stop. Do not attempt fur-
ther operation until the malfunction is located
and corrected.
Operator Controls N5-23