Komatsu D475A-5E0 Operation & Maintenance Manual page 60

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OPERATION
EXPLANATION OF COMPONENTS
ENGINE OIL PRESSURE CAUTION LAMP
This lamp (1) indicates low engine oil pressure.
If the monitor lamp flashes, stop the engine and check it
immediately.
REMARK
The alarm buzzer sounds, when the starting switch is turned to ON
position immediately after the engine oil has been changed. It does
not indicate a problem.
ENGINE COOLANT TEMPERATURE CAUTION LAMP
This lamp (2) indicates a rise in the coolant temperature.
When the monitor lamp flashes, run the engine at low idle speed
until green range of the engine coolant temperature gauge lights
up.
POWER TRAIN OIL TEMPERATURE CAUTION LAMP
Lamp (3) warns operator that the torque converter outlet port oil
temperature has risen.
If it flashes, run the engine at low idle until the power train oil
temperature gauge goes down to the green range.
HYDRAULIC OIL TEMPERATURE CAUTION LAMP
Lamp (4) indicates a rise in the hydraulic oil temperature.
When the monitor lamp flashes, stop the machine and run the
engine at the low idle speed until oil temperature falls.
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