Komatsu PC500LC-10R Shop Manual page 235

10 STRUCTURE AND FUNCTION
Sectional views (J-J, K-K, L-L, M-M)
1: Return spring
2: Merge-divider valve (for LS)
3: Valve (sequence valve)
4: Spring (sequence valve)
5: Merge-divider valve (main)
6: Return spring
Boom valve
7: Boom hydraulic drift prevention valve
8: LS shuttle valve
PC500LC-10R
COMPONENT PARTS OF HYDRAULIC SYSTEM
9: Pressure compensation valve (LOWER)
10: Spool
11: Suction safety valve (LOWER)
12: Check valve for regeneration circuit
13: Suction valve (RAISE)
14: Pressure compensation valve (RAISE)
Left travel valve
15: Merge-divider valve (travel junction valve)
16: Return spring
10-141