A normal machine should work with strong force and loud voice, and when there is a problem, sometimes it will be warned with a special sound. The hydraulic pump is a commonly used hydraulic component and strange noises will appear. The phenomenon requires us to find the source of the problem and give us a solution. Now let's look at some of the common problems and solutions for noise in hydraulic pumps.
Noise Common Problems and Solutions:
(1) There is air in the oil pump; this fault usually occurs when a new pump is installed. When a new pump is started, oil should be added to the pump first, and the bearing, plunger and cylinder of the pump To lubrication.
Treatment method: Open the oil pump filling port when the pump is running, so that the air in the pump is discharged from the filler port.
(2) The viscosity of hydraulic oil is too large; the self-priming ability of the pump is reduced, and the volumetric efficiency is reduced.
Treatment method: Select the appropriate viscosity of hydraulic oil, if the oil temperature is too low should turn on heating.
(3) The oil level of the fuel tank is too low; the blockage of the suction pipe increases the resistance of the pump to suction oil, causing the pump to suck air or leaking into the inlet pipe section, and the pump sucks in air.
Treatment method: add enough oil as required; clean the filter, and clear the air intake pipe; check and fasten the connecting screw of the oil pipe section.
(4) Improper installation of the oil pump and the motor; that is, the concentricity of the pump shaft and the motor shaft is inconsistent, so that the oil pump bearing is subject to radial force to generate noise.
Treatment method: check the concentricity of adjusting the oil pump and motor installation
The development of science is to constantly ask questions, solve problems, and problems occur in construction machinery. It also requires us to solve them in time. Don't look at small hydraulic pumps. There are also many science and technology hidden in it. We need to truly understand it. Turn resistance into power to continuously resolve unexpected