Main Causes of Hydraulic Equipment Failure

1. The malfunction of components in the circuit and the mutual interference of the system circuit, as well as the abnormal operation of individual components.

2. Among hydraulic component failures, the failure rate of hydraulic pumps is relatively high, accounting for about 30% of the overall failure rate of hydraulic components. Therefore, it should be given sufficient attention.

3. Many hydraulic equipment failures are caused by improper selection and poor management of working media. About 70% to 80% of all hydraulic equipment failures are caused by contaminants in the hydraulic oil, and about 90% of the failures caused by hydraulic oil are caused by impurities. Impurities are very harmful to hydraulic equipment as they can accelerate component wear, increase leakage, decrease performance, shorten lifespan, and even cause component damage and system failure.

4. Some hydraulic equipment failures are gradual, such as aging, wear, corrosion, fatigue, and seal aging of equipment that has been neglected for a long time.

5. Some failures are sudden, such as the sudden jamming or malfunction of components due to foreign objects. Some failures are also caused by multiple factors, such as improper selection and configuration of components, improper installation, adjustment, and setting.

6. Some failures are also caused by mechanical, electrical, and external factors. All these factors add to the difficulty of diagnosing hydraulic equipment failures.

7. Since the actions of various hydraulic components in a hydraulic station system are interdependent, fixing one failure often leads to another. Therefore, when inspecting, analyzing, and troubleshooting failures, attention must be paid to the tightness of the hydraulic equipment.