Fluid is drawn in from tank 1 through suction valve 4 and pipeline a to hydraulic pump 2. In the left-hand position of lever 3, turning about fixed axis A, pump 2 delivers fluid to the left end of cylinder 5, moving piston 6, piston rod 7 and table 8, attached to the piston rod, to the right. From the right end of cylinder 5, fluid is discharged through pipeline b to tank 1. In the right-hand position of lever 3, mounted directly on variable-displacement pump 2, fluid is drawn in through pipeline b and is delivered to the right end of cylinder 5, moving table 8 to the left. Lever 3 is turned by trip dogs c mounted on travelling machine tool table 8. Different speeds for the forward and return strokes are set up by adjusting the positions of stops e along guide x. Surplus fluid is discharged back to tank 1 through relief valve 9.
$4155$CHP,Dr$