1.Link the pump and the working part with connector. 2.Fix the workpiece and close the oil release valve and pull the handle until finish working and then turn the switch off. Caution: 1.Add 20# machine oil if idle pumping occurs. The machine oil must be filtered by 200# filter net in case there's impurity in it. 2.the working part may be connected with power pumps with inner pressure of 63 ***.