Komatsu PC500LC-10R Shop Manual page 244

COMPONENT PARTS OF HYDRAULIC SYSTEM 10 STRUCTURE AND FUNCTION
SHUTTLE VALVE IN PRESSURE COMPENSATION VALVE OF CONTROL VALVE
STRUCTURE OF SHUTTLE VALVE IN PRESSURE COMPENSATION VALVE OF
CONTROL VALVE
When traveling
1: Main pump 5: Pressure compensation valve
Pressure compensation valve (5) without shuttle valve is employed since no holding pressure is applied to port
(A) of the travel circuit.
10-150 PC500LC-10R