Komatsu PC500LC-10R Shop Manual page 165

10 STRUCTURE AND FUNCTION COMPONENT PARTS OF CONTROL SYSTEM
FUNCTION OF FUEL CONTROL DIAL
When knob (3) is turned, the shaft of potentiometer (1) rotates. The resistance of variable resistor in potentiome-
ter (1) varies according to this rotation, and throttle signals are sent to the controller.
REMARK
The hatched area in the following graph is the abnormality de-
tection area. When the throttle voltage is in this area, the en-
gine speed is set to low idle.
PC500LC-10R 10-71