Komatsu PW118MR-11 Operation & Maintenance Manual page 112

EXPLANATION OF COMPONENTS
• The temperature is normal if the indicator is in the green
zone (B) during the operations.
• If the indicator enters the red zone (A), the overheating
prevention system is activated, the engine speed is re-
duced to idle, the engine coolant temperature indicator (K)
lights red and the buzzer sounds.
The overheat prevention system continues to operate until
the indicator enters the green zone (B).
• The temperature is low if the indicator is in the zone (C) on
engine startup In this case, perform the warm-up opera-
tion. For details, see "METHOD FOR ENGINE WARM-UP
OPERATION (3-177)".
(G): Low temperature. Caution lamp background (K) is white.
(H): Correct temperature Caution lamp background (K) is blue.
(J): High temperature. Caution lamp background (K) is red.
HYDRAULIC OIL TEMPERATURE GAUGE
Hydraulic oil temperature gauge shows the hydraulic oil tem-
perature.
(A): Red range
(B): Green range
(C): White range
• The temperature is normal if the indicator is in the green
zone (B) during the operations.
• If the indicator enters the red area (A), the oil temperature
exceeds 102 °C. Run the engine at low idle or stop it and
wait for the oil temperature to drop.
• The temperature is lower than 20 °C if the indicator is in
area (C) on engine startup In this case, perform the warm-
up operation. For details, see "METHOD FOR HYDRAUL-
IC SYSTEM WARM-UP OPERATION (3-180)".
(G): Low temperature. Caution lamp background (K) is white.
(H): Correct temperature Caution lamp background (K) is blue.
(J): High temperature. Caution lamp background (K) is red.
FUEL GAUGE
Fuel gauge shows the amount of fuel in the fuel tank.
The gauge should be in the green zone (B) during the opera-
tion.
If the gauge reaches the red zone (A) during the operation, the
remaining fuel is equal to 12 ℓ or less; check and add fuel.
(A): Red range
(B): Green range
3-40
WENAM00130
OPERATION
RKA61160
RKA61151