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What are the most common causes of hydraulic system failure?

Hydraulic system failures are often the result of a combination of multiple factors, so before analyzing the fault, it is necessary to understand the principles and characteristics of the entire hydraulic system, and then make judgments based on the fault symptoms. There are some tips for finding the cause of a problem on a construction site when there is a shortage of both parts and testing equipment. The most common method is to invert the components, remove the load, etc. If the inverted components also malfunction, it proves that the component has a problem; If the load is removed, the fault will disappear and the problem will be understood.   Common causes and simple troubleshooting methods of hydraulic system faults:   Fault 1: Oil leakage and seepage in the oil circuit 1. Causes: (1) hose or steel pipe rupture,                   (2) steel pipe stiffness,                   (3) damaged or improperly installed seals,                   (4) loose or loose joints,                   (5) hydraulic joints with bumps and scratches.   2. Exclusion methods: (1) Replace with new parts,                                     (2) Grind and repair,                                     (3) Update and tighten.   Fault 2: Excessive noise 1. Causes: (1) Pipeline leakage,                   (2) Components or pipelines not fixed properly, causing vibration,                   (3) Low oil level in the fuel tank,                   (4) Unstable speed control valve or overflow valve.   2. Exclusion methods: (1) Tighten the joint or replace the seal,                                     (2) Clean or replace the valve,                                     (3) Add hydraulic oil.

2025

04/25

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