Daily Fault Diagnosis of Hydraulic Station

Because it is difficult to understand the flow conditions of parts and pipelines in a hydraulic station from the outside, many friends who are new to the hydraulic industry have many difficulties in analysis and diagnosis. Therefore, today I will teach you how to find out the faults of the hydraulic station. The causes and locations, as well as how to prevent them.

 There is no pressure or insufficient pressure in the hydraulic station.

You can consider whether the oil pump of the hydraulic station does not supply oil, the oil level in the oil tank is too low, it is difficult to absorb oil, the oil viscosity is too high, the pump steering is wrong, the pump is clogged or damaged, the joint or seal leaks, the main pump or motor leaks too much, the oil temperature Too high, the setting value of the relief valve is low or has failed, the pump has insufficient oil replenishment, and the valve has failed.

Vibration and noise occur in hydraulic station

The hydraulic station has air intrusion, vibration caused by the mechanical system, excessive pressure and flow, oil flow vortex, low oil level, clogged components or excessive resistance, improper pump calibration or excessive oil viscosity. It is also best to connect the return pipes of the two relief valves of different pumps back to the fuel tank separately. If the return pipes are connected together, a louder sound will be produced when the two pumps work at the same time.

 Shock occurs in hydraulic station

The inertia of high-speed movement of working parts, parts not reacting quickly enough, fluid flow reversal, throttling, buffer device position is incorrect or has failed, leakage increases, air enters, and oil temperature is too high.

The execution speed of the part is not enough or it cannot be moved at all

Poor lubrication, changes in friction resistance, air entry, large pressure pulses or too low system pressure, valve failure, increased leakage, holding back, and sintering.