Solution of Manual Operation for the Hydraulic Drive Valve

This paper briefly introduces the traditional mode of operation with hand which is used for hydraulic drive valve, and one mode of manual operation that is used to resolve operation of the fluid drive valve with hand, that have simple structure, small body, operation expedience etc.and analyze the questions in hydraulic drive equipment with hand.It expatiate the pump with hand that can suck and platoon in two directions and the manual change over valve that has the stop function.