Komatsu PC500LC-10R Shop Manual page 168

LAYOUT DRAWING OF HYDRAULIC SYSTEM
7: Travel junction solenoid valve
8: 2-stage relief solenoid valve
9: Merge-divider EPC valve (for main spool)
10: Merge-divider EPC valve (for LS spool)
14: LS-EPC valve
15: Rear pump PC-EPC valve
10-74
10 STRUCTURE AND FUNCTION
11: Variable back pressure solenoid valve
12: Rear pump oil pressure sensor
13: Front pump oil pressure sensor
16: Front pump PC-EPC valve
17: Bucket CURL sensor
PC500LC-10R