Komatsu — 11.1 MACHINE MONITOR

11. EXPLANATION OF COMPONENTS METERS 8. FUEL GAUGE This gauge indicates the amount of fuel in the fuel tank. E: Tank is EMPTY F: Tank is FULL The lamp should light up in the green range during operation. If it enters the red range during operation, the fuel gauge lamp and central CAUTION lamp will flash. If only the red range lights up during operation, it means that there is less than 200 liters (52.8 US gal) of fuel left, so check and add fuel. 9. ENGINE COOLING WATER TEMPERATURE GAUGE This gauge 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, stop the machine and run the engine with no load at midrange speed until the green range lights. If the lamps light up to the 1st red level, the engine water temperature gauge lamp and central CAUTION lamp will flash; when the lamps light up to the 2nd red level, the alarm buzzer will also sound intermittently. 10. TORQUE CONVERTER OIL TEMPERATURE GAUGE This gauge indicates the temperature of the torque converter oil. If the temperature is normal during operation, the green range will light. If the red range lights during operation, stop the machine and run the engine with no load at midrange speed until the green range lights.

If the lamps light up to the 1st red level, the torque converter oil temperature gauge lamp and central CAUTION lamp will flash; when the lamp lights up to the 2nd red level, the alarm buzzer will also sound intermittently. 2-12