Komatsu Galeo PC138US-8 Shop Manual page 281

10 Structure, function and maintenance standard
PPC lock function
1. Battery
2. Battery relay
3. Fusible link
4. Fuse box
5. Starting switch
6. Lock lever
7. PPC lock switch
8. Hydraulic pump
9. Control valve
9a. Pump merge-divider valve
9b. Self pressure reducing valve
10. PPC lock solenoid valve
PC138US, USLC-8
Function
Interlocked with the lock lever, the PPC lock
q
switch is turned "OFF" when operating the lock
lever to "LOCK" position.
When the PPC lock switch is turned "OFF", the
q
current to the PPC lock solenoid valve is cut-
off, causing neither the work equipment nor
machine moves even if levers or pedal is oper-
ated.
SEN02553-01
23