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Piston pump working noise is too large reasons and elimination methods
Update time:2022-10-24 17:01:00 Views:

(1) There is air inside the plug pump. This fault generally occurs when a new pump is installed, and when a new pump is started, the pump should be filled with hydraulic oil first to lubricate the pump's pumping, ducet and body.

Treatment method: When the pump is running, open the fuel port of the oil pump, so that the air in the pump is discharged from the fuel port.
(2) The oil level of the tank is too low, and the blockage of the suction pipe makes the oil suction resistance of the pump become larger, resulting in the leakage of the pump suction or the oil inlet pipe section, and the pump inhales air.
Treatment method: add enough oil; Clean the filter, dredge the intake pipe; Check and tighten the connection screws of the inlet pipe section.
(3) The oil pump and motor are improperly installed, that is, the concentricity of the pump shaft and the motor shaft is different, so that the oil pump bearing is subjected to radial force and produces noise.
Treatment method: Check and adjust the concentricity of oil pump and motor installation.
(4) The viscosity of the hydraulic oil is too large, so that the self-priming capacity of the pump is reduced, and the volumetric efficiency is reduced. Treatment method: Choose the appropriate viscosity of the hydraulic oil, if the oil temperature is too low, the heater should be used.