Komatsu PC500LC-10R Shop Manual page 247

10 STRUCTURE AND FUNCTION
OPERATION OF INTRODUCTION OF LS PRESSURE IN CONTROL VALVE
1.
When the main spool (2) is operated, the pump pressure enters introduction port (a), and it is introduced to
LS circuit.
2.
When the pump pressure reaches the load pressure on port (B), the check valve (5) opens and the pressur-
ized oil flows.
LS BYPASS PLUG OF CONTROL VALVE
LS
Abbreviation for Load Sensing
PC500LC-10R
COMPONENT PARTS OF HYDRAULIC SYSTEM
10-153