Variable displacement piston pump output pressure abnormalities is one of the common faults, this fault is divided into two kinds, one is the output pressure is too low, the other is the pressure is too high. So when the variable pump two kinds of output pressure failure, how to solve it? The following is the variable piston pump output pressure anomaly solution. Variable displacement piston pump output pressure anomaly solution (1) the output pressure is too low When the pump in the self-priming state, if the leakage of oil into the pipeline or hydraulic cylinder system, one-way valve, the valve has a larger leak, Will not increase the pressure to go up. This requires finding leaks, tightening, and changing seals to increase pressure. Pressure relief valve or adjust the pressure is low, the system pressure also does not increase, the pressure should be re-adjusted or overhaul relief valve. If there is a large amount of leakage due to the deviation between the cylinder of the hydraulic pump and the valve plate, in severe cases, the cylinder may rupture. Then, grind the mating surface or replace the hydraulic pump. (2) the output pressure is too high If the loop load continues to rise, the pump pressure continues to rise, it is normal. If the load is constant and the pump pressure exceeds the pressure required by the load, check the hydraulic components other than the pump, such as the directional valve, pressure valve, transmission, and return line. If the maximum pressure is too high, should adjust the relief valve. Extended reading: China Construction Water Exhibition water pump manufacturers rankings ptc exhibition motor top ten brands pump valve pipe fittings Show Information Industry Internet (Xiamen) Technology Co., Ltd. Asia Pump Network Editor: He Duanhui (QQ / WeChat:) http: // mj .liuti.cn / (Service Hotline:)
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