How to solve the noise of hydraulic oil pump?

Once the hydraulic pump fails, it will immediately affect the normal operation of the hydraulic system. Noise is a common failure of hydraulic pumps, but how to detect and eliminate them? With the big LAN hydraulic small editor to see to understand.
There are 10 reasons for the noise and abnormal noise of hydraulic pumps.
(1) the filter or suction pipe part is blocked or through a small area. At this point, what we need to do is to clean the filter element or suction pipe, and replace the appropriate filter or suction pipe.
(2) the gas hole of the tank is blocked. This requires us to clean the air holes.
(3) the oil suction position is too high or the oil level of the tank is too low. At this time, we should reduce the installation height of the hydraulic pump or fuel to the oil level line.
(4) the hydraulic oil pump or suction pipe is not well sealed. At this time, we should check the tightness of the joint and the joint surface and tighten it.
(5) inhalation of bubbles. The oil pump on the new installation is more common. We have to carry out the empty operation and exclude the air; the oil suction pipe is separated from the oil pipe in a certain distance, so that the back of the oil pipe is inserted under the oil surface to a certain depth, and the oil pipe can not be placed above the oil surface.
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(6) the viscosity of the oil is too high. This requires us to check the oil quality and select the viscosity of the oil according to the requirements.
(7) the suction cavity of the hydraulic oil pump is not smooth. At this time, we have to dismantle the pump and carry out the cleaning and inspection.
(8) the internal parts of the bearing parts of the hydraulic oil pump wear seriously. At this time we have to dismantle the pump and repair or replace it.
(9) the structure design of the hydraulic oil pump is not good, and the oil trapped is serious. This can only improve the design and improve the unloading capacity.
(10) bad installation of hydraulic pump and poor coaxality between pump and motor. This time there will be some abnormal noise. We have to re install the pump to meet the technical requirements.
From the above analysis, we can see that the noise of hydraulic pump is caused by many reasons. The small hydraulic editor of Da LAN reminds us that we need to conduct detailed investigation to identify and determine the real cause.