Komatsu PC200-8M0 Shop Manual page 270

SEN06123-00
Function
The fuel control dial is installed under the
q
machine monitor.
q Turning knob (1) rotates the shaft of potentiom-
eter (5).
q The rotation of the shaft changes the resis-
tance of the variable resistor in potentiometer
(5), sending any throttle signal to the engine
controller.
q The hatched area in the graph is the abnormal-
ity detection area. When the throttle voltage is
within this area, the engine is running at low
idle.
4
10-600
600 Electrical system
Engine control
PC200, 200LC, 220, 220LC-8M0