Komatsu ecot3 GALEO HM300-2 Operation And Maintenance Manual page 67

OPERATION
EXPLANATION OF COMPONENTS
TORQUE CONVERTER OIL TEMPERATURE CAUTION LAMP
This monitor (2) warns the operator that the torque converter oil
temperature has risen.
When it lights up, "E02 TC OVERHEAT" is displayed on the
character display at the same time, so stop the machine in a safe
place, set the shift lever to the N position, and run the engine under
no load at a mid-range speed until the lamp goes out.
RETARDER OIL TEMPERATURE CAUTION LAMP
This monitor (3) warns the operator that the brake oil temperature
has risen.
When it lights up, "E02 BRAKE OVERHEAT" is displayed on the
character display at the same time , so stop the machine in a safe
place, set the shift lever to the N position, and run the engine under
no load at a mid-range speed until the lamp goes out.
BATTERY CHARGE CIRCUIT CAUTION LAMP
This monitor (4) lights up when the engine is running to warn the
operator of a problem in the charging system.
When it lights up, "E03 CHECK RIGHT NOW" is displayed on the
character display at the same time, so stop the machine
immediately at a safe place, then stop the engine and check the
charging circuit.
STEERING OIL TEMPERATURE CAUTION LAMP
This monitor (5) lights up to warn the operator that the steering oil
temperature has risen.
When it lights up, "E02 STRG OVERHEAT" is displayed on the
character display at the same time, so stop the machine in a safe
place, set the shift lever to the N position, and run the engine under
no load at a mid-range speed until the lamp goes out.
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