Komatsu 530M Operation & Maintenance Manual page 70

Dump truck
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OM3006.3 04/98
Instrument Panel and Indicators
Air Pressure Monitor (NOT USED)
The Air Pressure Monitor (1, Figure 3-8) is
NOT USED on this truck.
Air Pressure Gauge (NOT USED)
The Air Pressure Gauge (2, Figure 3-8) is NOT USED
on this truck.
Coolant Temperature Monitor
The Coolant Temperature Monitor (3, Fig-
ure 3-8) indicates a rise in the cooling
water temperature.
When the monitor lamp flashes, run the engine with no
load at 1200-1500 RPM until the green range of the
engine water temperature gauge lights.
Engine Cooling Water Temperature Gauge
The Engine Cooling Water Temperature Gauge (4,
Figure 3-8) indicates the temperature of the cooling
water. If the temperature is normal during operation,
the green range will light. If the red range lights during
operation, the alarm buzzer will sound, the central
warning lamp will flash and the coolant temperature
monitor lamp will flash at the same time. If this occurs,
stop the machine and run the engine with no load at
1200-1500 RPM until the green range lights.
Torque Converter Oil Temperature Monitor
The Torque Converter Oil Temperature
Monitor (5, Figure 3-8) indicates a rise in
the torque converter oil temperature.
When the monitor lamp flashes, stop the machine and
run the engine with no load at 1200-1500 RPM until the
green range of the temperature gauge lights.
Torque Converter Oil Temperature Gauge
The Torque Converter Oil Temperature Gauge (6, Fig-
ure 3-8) indicates the temperature of the torque con-
verter oil. If the temperature is normal during operation,
the green range will light. If the red range lights during
operation, the alarm buzzer will sound, the central
warning lamp will light up and the torque converter oil
temperature monitor lamp will flash at the same time.
If this occurs, stop the machine and run the engine with
no load at 1200-1500 RPM until the green range lights.
Retarder Oil Temperature Monitor
The Retarder Oil Temperature Monitor
lamp (7, Figure 3-8) warns that the retarder
oil temperature has risen.
If it flashes, stop the machine, return the Transmission
Range Selector lever to Neutral, and run the engine
under no load at 1200-1500 RPM until the warning lamp
goes out.
Retarder Oil Temperature Gauge
The Retarder Oil Temperature Gauge (8, Figure 3-8)
indicates the temperature of the retarder cooling oil.
During normal operation, a lamp in the green range
should light up.
If the lamp in the red range lights up during operation,
the alarm buzzer will sound, the central warning lamp
will flash, and the retarder oil temperature monitor lamp
will flash at the same time. If this happens, stop the
machine, return the Transmission Range Selector lever
to Neutral, and run the engine at 1200-1500 RPM under
no load, and wait until the lamps in the green range light
up.
Left Turn Signal Pilot Lamp
When the turn signal lever is moved down-
wards, the left turn signal pilot lamp (9,
Figure 3-8) flashes.
High Beam Pilot Lamp
The High Beam Pilot Lamp (10, Figure 3-8)
lights up when the head lamps are on high
beam.
Right Turn Signal Pilot Lamp
When the turn signal lever is moved up-
wards, the right turn signal pilot lamp (11,
Figure 3-8) flashes.
Speedometer
The digital Speedometer (12,
Figure 3-8) indicates the travel
speed of the truck in miles per
hour, or kilometers per hour.
This figure will appear momentarily when the keyswitch
is first turned ''On'' to demonstate that all segments are
working.
Operation - Section 3
Page 3-27

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