Komatsu PW98MR-10 Operation & Maintenance Manual page 223

OPERATION
2.
Turn fuel control dial (2) to the middle between Low idle
(MIN) and High idle (MAX) to run the engine at a medium
speed.
Run the engine with no load until engine coolant temperature caution lamp (1) displays proper temperature.
• Display (A) when temperature is proper: Caution lamp background (C) is blue.
• Display (B) when temperature is low: Caution lamp background (C) is white.
If the engine coolant temperature caution lamp displays the proper temperature, the engine warm-up operation
is completed.
Then, perform the warm-up operation for the hydraulic components.
METHOD FOR CANCELING AUTOMATIC WARM-UP OPERATION
If it becomes necessary in an emergency to cancel the automatic warm-up operation or to lower the engine
speed to low idle, do as follows.
1.
Turn fuel control dial (2) to High idle (MAX) position and
hold it for 3 seconds or more.
MACHINE OPERATIONS AND CONTROLS
WENAM00061
RKA48652
RKA48652
3-155