First, product performance and use: VP series variable vane pump is a pressure limiting variable vane pump with pressure adjustment device and flow adjustment device. Output flow of the pump can be adjusted automatically according to the load change and adapt to its output power and load operating speed and load size, with high efficiency, energy saving, safe and reliable characteristics, especially suitable for capacity power source in the hydraulic system of the governor of each plot such as metal cutting machine tools, pressure machinery, leather machinery, hydraulic station. , Product technical parameters: 1, before the pump starts, check the inlet and steering. Initial startup of the best to the pump is filled with oil, and turned by hand should be uniform, flexible. Newly installed or long-term stall and then start the oil port exhaust, as far as possible in the no-load conditions start. 2, the factory of the pump pressure of the adjustment range of the maximum value, the flow to maximum. The first elastic when the adjustment nut, and then turning the adjusting screw clockwise rotation increased pressure, flow reduction, the counterclockwise rotation of the pressure reducing flow rate increases, adjustment is completed tighten the nut.