Komatsu PC500LC-10R Shop Manual page 225

10 STRUCTURE AND FUNCTION
EPC
Abbreviation for Electromagnetic Proportional Control
STRUCTURE OF MAIN PUMP PC-EPC VALVE
PC-EPC valve generates EPC output pressure and outputs it to PC valve.
General view and sectional view
C: To PC valve
P: From self-pressure reducing valve
1: Connector
2: Coil
3: Body
4: Spring
PC500LC-10R
COMPONENT PARTS OF HYDRAULIC SYSTEM
T: To hydraulic tank
5: Spool
6: Rod
7: Plunger
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