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Hydraulic oil pump common faults and repair methods
2023/8/29 18:45:11


Hydraulic oil pump common faults and repair methods


Hydraulic oil pump is a key component in the hydraulic system, responsible for providing power and pressure to make the hydraulic system operate normally. However, due to prolonged use or other factors, hydraulic oil pumps may have various failures. In this article, we will introduce the common failures of hydraulic oil pump and provide corresponding repair methods to help you solve the problem in time.

Leakage problems: leakage is one of the common failures of hydraulic oil pumps. The pump body, seals or joints and other parts may leak, resulting in a drop in hydraulic system pressure or insufficient hydraulic oil flow. Solutions to leaks include inspecting and replacing seals, tightening fitting nuts, cleaning leaky areas and applying sealant.


    Noise Problems: If a hydraulic oil pump is making an unusual noise, it may be caused by worn, loose or contaminated parts. Ways to fix noise problems include inspecting and replacing worn parts, tightening bolts, cleaning the inside of the pump body, and ensuring the purity of the hydraulic fluid.


    Running Poorly or Not Working: Hydraulic oil pumps may run poorly or not work at all. This can be caused by clogged inlet or outlet valves, worn or malfunctioning internal pump components. Solutions to these problems include cleaning or replacing the valves, inspecting and repairing the internal parts of the hydraulic pump, and making sure the hydraulic system supplies oil smoothly.


    High oil temperatures: If the operating temperature of a hydraulic pump is too high, it can lead to oil degradation, seal deterioration and system failure. Solutions to high oil temperatures include checking the cooling system, increasing the fluid capacity, cleaning the radiator, changing the hydraulic fluid, and repairing or replacing internal pump components.


    Vibration Problems: Excessive vibration can cause hydraulic oil pump performance to degrade or fail. Solutions to vibration problems include checking and tightening bolts, adjusting the alignment between the hydraulic pump and the drive, and checking and fixing problems with other parts of the hydraulic system.


When repairing a hydraulic pump, you need to keep the following in mind:


    Use proper tools and equipment and follow the operating manual and safety regulations.


    Ensure that the pressure in the hydraulic system has been relieved and that the hydraulic system is secured using a valve locking device before servicing.


    Regularly check the operating condition of the hydraulic oil pump and carry out the necessary maintenance and repair to extend its service life.


Summary: Common failures of hydraulic oil pumps include leakage, noise, poor operation, high oil temperature and vibration and other problems. For these failures, we can take a series of repair methods, including replacing seals, cleaning the inside of the pump body, adjusting the degree of alignment, checking and repairing the problems of other parts of the hydraulic system. During the repair process, be sure to follow safety regulations and perform regular maintenance and repair to ensure the normal operation and long-term stability of the hydraulic oil pump. If you encounter complex faults or problems that cannot be repaired on your own, it is recommended to seek professional hydraulic system repair service!