GROUP 3 PILOT CIRCUIT Remote control valve (LH lever) Remote control valve (RH lever) RCV pedal Safety lock solenoid valve Swing parking brake MCV Travel speed solenoid valve Power boost solenoid valve Boom priority EPPR valve Line filter Main pump Relief valve 40kgf/cm 2 Pilot pump Suction strainer 220S3CI03 The pilot circuit consists of suction circuit, delivery circuit and return circuit. The pilot pump is provided with relief valve, receives the oil from the hydraulic tank through the suction strainer.
The discharged oil from the pilot pump flows to the remote control valve through line filter, EPPR valve, solenoid valve assemblies, swing parking brake, main control valve and safety lock solenoid valve. 3-6