Concrete mixer truck hydraulic system works

Concrete mixer truck hydraulic system works. When the device by manipulating the lever to the left of the variable rotation, the pump began to drain from the oil port A, the high  stationary concrete batching plant, the motor rotates the motor oil flowing into a low pressure oil through another stream pressure tubing from B back to the pump. Variable rotation angle larger rod, pump oil discharged per revolution on the more, the higher the speed of the motor. When the manipulated variable stalk it turned to the right, then the pressure oil discharged from the B port, change the motor rotation, Concrete batching plant oil pump flows back from the A port. Rotation of the motor driven gear, so that the mixing drum mixer to a certain speed range CVT with two rotation. Other hydraulic systems on the same principle.