hitachi — OVERLOAD RELIEF VALVE (WITH MAKE-UP FUNCTION)

COMPONENT OPERTATION / Control Valve Relief Operation: 1 2 3 4 5 6 7 HP T450-03-03-033 LP 9 8 Make-Up Operation: HP T450-03-03-034 1 - Orifice 4 - Spring 6 - Pilot Poppet 8 - Spring 2 - Main Poppet 5 - Passage 7 - Spring 9 - Piston 3 - Sleeve T3-3-23 2 4 LP P P