What causes problems with hydraulic components?

According to statistics, 70% of hydraulic component problems are related to hydraulic oil, and about 90% of these 70% are caused by impurities. The inspection of hydraulic oil mainly includes the following points: cleanliness, color, viscosity, and consistency of hydraulic oil; In addition, there is also an odor. When hydraulic oil flows from the high-pressure side to the low-pressure side without performing mechanical work, heat is generated in the hydraulic system. Excessive hydraulic oil temperature can cause expensive seals to deteriorate and the oil to oxidize and fail, leading to corrosion and the formation of deposits that can block damping holes and accelerate valve wear. High temperatures can cause valves and pumps to jam, and high temperatures in hydraulic components can also pose safety issues. By checking the oil temperature inside the fuel tank, it is sometimes possible to eliminate system problems before serious hazards occur.

In most systems, the relief valve is the primary heat source, and the excessive flow through the pressure reducing valve of hydraulic components is another primary cause of heat generation. Because low power is related to energy loss, checking the operating temperature can determine whether there is a problem with low power. For hydraulic systems, controlling pollutants in the oil is a primary task, and the sources of pollutants in hydraulic components mainly include the following aspects:

1. Entered with new oil.

2. During the installation process, internal components of the system.

3. Entered with the surrounding air.

4. Caused by internal wear of hydraulic components.

5. Entered through leaking or damaged seals.

6. It was brought in during maintenance.