Komatsu PC500LC-10R Shop Manual page 203

10 STRUCTURE AND FUNCTION
IMF: Front pump PC mode selector current
IMR: Rear pump PC mode selector current
ISIG: LS set pressure selector current
PAF: Front pump discharge port
PAR: Rear pump discharge port
PBR: Rear pump pressure input port
PBF: Front pump pressure input port
PD1F: Air bleeder
PD1R: Case drain port
PD2F: Drain plug
PD2R: Drain plug
PENF: Front pump control pressure pickup port
PENR: Rear pump control pressure pickup port
PEPC: EPC source pressure input port
PEPB: EPC source pressure pickup port
1: Front pump
2: LS-EPC valve
3: Front pump PC-EPC valve
4: Rear pump PC-EPC valve
5: Rear pump
PC500LC-10R
COMPONENT PARTS OF HYDRAULIC SYSTEM
PFC: Front pump discharged pressure pickup port
PLSF: Front pump load pressure input port
PLSFC: Front pump load pressure pickup port
PLSR: Rear pump load pressure input port
PLSRC: Rear pump load pressure pickup port
PMF: Front pump PC mode selector pressure pickup
port
PMR: Rear pump PC mode selector pressure pickup
port
PRC: Rear pump discharged pressure pickup port
PS: Pump suction port
PSIG: LS set selector pressure pickup port
OCP: Oil level check port
BMP: Oil filler port
6: Rear pump PC valve
7: Rear pump LS valve
8: Front pump LS valve
9: Front pump PC valve
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