Komatsu — 11.1.1 WARNING DISPLAYS

OPERATION 2. CENTRAL CAUTION LAMP WARNING If these monitor lamps flash, stop the engine immediately or run it low idle. If there is abnormality in any CAUTION item when the engine is running (engine water temperature, torque converter oil temperature, engine water level, brake oil pressure, engine oil pressure), the alarm buzzer will sound intermittently and the monitor lamp for the location of the abnormality will flash and the central CAUTION lamp will also flash. If the fuel gauges enters the red range when the engine is running, the fuel gauge will flash and the central CAUTION lamp will also flash. If they flash, check the fuel level and add fuel. 3.

ENGINE WATER LEVEL CAUTION LAMP This lamp warns the operator that the coolant level in the radiator has dropped. When performing the checks before starting (main switch ON, engine stopped): If the coolant level in the radiator is low, the caution pilot lamp and central CHECK lamp will flash. If the monitor lamps flash, check the coolant level in the radiator sub-tank. Add water, if needed. When operating (engine running): If the condition is normal, the caution pilot lamp should be off. If the coolant level in the radiator is too low, the warning pilot lamp and the central CAUTION lamp will flash, and the alarm buzzer will sound intermittently.

If the monitor lamps flash, stop the engine and check the coolant level in the radiator and sub-tank. Add water, if needed. Stop the machine on level ground before performing this check. WA450-3MC 2-7