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Causes and treatment of common faults in hydraulic station

Author: Youzhi technology time: October 23, 2018 reading: 341 times

 Causes and treatment of common faults in hydraulic station

   Causes and treatment methods of common faults in hydraulic station:

1、 The oil pressure value cannot be guaranteed

Fault cause: the reason is that there is air suction in the system, there is a lot of foam in the oil tank, or there is large leakage in the overflow valve and electromagnetic directional valve.

Treatment method: check the oil pump suction port of hydraulic station for leakage; Check whether the pipe joint at the oil suction part of the oil pump is tightened; whether the screw of the oil suction filter is tightened; check whether the pipeline from the oil suction filter to the oil suction port of the oil pump leaks; check whether the screw of the end cover of the oil pump is tightened; clean the valve core of the overflow valve; if the valve core is not flexible in the valve body, you can hold the valve core and grind it back and forth in the body; To clean the solenoid valve core, it is required to move flexibly in the valve body to ensure the valve core in place during operation.

2、 Oil leakage and unstable oil pressure

The oil pressure between the hydraulic system and the hydraulic system is not stable, and the reason is that the oil pressure is not stable, and the reason is that the oil pressure is not stable If the upper and lower coils are not stable, the oil pressure will be increased.

3、 Excessive residual pressure

If the residual pressure is too high, the brake will lose its function.

The main reasons are: the distance between the baffle on the control rod of the electro-hydraulic pressure regulating device and the nozzle is too small; the orifice of the relief valve is too large.

Treatment method: adjust or replace the upper baffle of control rod; replace the orifice of relief valve with smaller orifice diameter.


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