GROUP 3 PILOT CIRCUIT GROUP 3 PILOT CIRCUIT Remote control valve (RH lever) Remote control valve (RH lever) RCV dozer Travel pedal Boom swing pedal Safety lock solenoid valve Swing parking brake Main control valve Travel speed solenoid valve Suction strainer Pilot pump 189AK3HC01 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 solenoid valve assemblies, swing parking brake, main control valve and safety lock solenoid valve. 3-6