Komatsu Galeo PC138US-8 Shop Manual page 282

SEN02553-01
Oil flow adjuster function for attachment
(Machine ready for attachment)
1. Pump controller
2. Engine controller
3. Machine monitor
4. Fuel control dial
5. Fuel supply pump
6. Sensors
7. Emergency pump drive switch
8. Oil pressure switch
9. Hydraulic pump
9a. Servo
9b. LS valve
9c. PC valve
10. Control valve
10a. Pump merge-divider valve
10b. Self pressure reducing valve
11. PPC lock solenoid valve
12. Oil flow adjuster EPC valve for attachment
13. PC-EPC valve
14. Attachment circuit selector valve
15. Attachment
24
10 Structure, function and maintenance standard
Input and output signals
a. Oil flow adjuster EPC valve drive signal for
attachment
b. Oil pressure switch signal
c. CAN signal
d. PC-EPC valve drive signal
e. Solenoid valve GND
f . Throttle signal
g. Fuel supply pump control signal
h. Sensor signals
Function
Setting of the working mode and oil flow rate
q
on the machine monitor controls the oil flow to
the attachment when the attachment control
pedal is depressed all the way.
PC138US, USLC-8