Judgment Method and Countermeasures of Hydraulic System Leakage

 

How do 1. determine if there is a leak in the hydraulic system?

 

Various factors can cause or contribute to any hydraulic system leakage. Most leaks are caused by one of the following:

 

1) Shock and vibration will cause connectors and accessories to loosen;

 

2) Wear of hydraulic cylinder seal;

 

3) The use of incompatible fluids will cause high temperature damage;

 

4) Other system problems may also cause leaks. Finding a leak will usually prompt you for any other problems you may have with your hydraulic system. Regardless of the cause of the leak, you need to find and fix it as soon as possible.

 

Your hydraulic system can let you know about possible leaks in a number of ways. If you pay attention to these signs, you can usually figure out that you have a leak before it causes a big problem.

 

You can tell if the hydraulic system is leaking somewhere by the following methods:

 

1) Vision examination.

 

Sometimes you don't have to go far to find a leak. Do a visual inspection of the hydraulic system. If you find signs of leakage, such as puddles or wet spots, solve the problem immediately.

 

2) The liquid level drops.

 

Check your fluid levels frequently. If you notice a drop in the liquid level, you can safely assume that you have a leak. The rapid drop in level means that you have an obvious problem somewhere in the hydraulic system.

 

There does not seem to be a slow and gradual lowering of the liquid level at the beginning. However, if you check the liquid level frequently, you will find leakage.

 

3) Pressure drop.

 

As hydraulic oil leaks out of the system, the system cannot always maintain the correct working pressure. You may also experience a general slowdown.

 

Among other signs, your hydraulic system may start to make noise, or your fluid may reach a high temperature. Generally, if your hydraulic system is not working properly, it may be the cause of a serious leak.

 

How do 2. deal with hydraulic system leaks?

 

Once you know that there is a leak, you need to find out where the leak is and any other leaks that may exist. Since most leaks occur at joints, seals and connectors, you can check these areas immediately. When checking for leaks:

 

1) Depressurize the system.

 

2) Wear thick leather gloves.

 

3) Do not check for leaks by hand, otherwise you may burn yourself.

 

4) Use cardboard or a piece of wood to check for air leaks.

 

If you find a leak in the fitting, tighten the fitting. You may want to replace all failed connections with advanced compatible connections including seals. Also, search along the hose for signs of damage or leakage. Replace damaged hoses immediately.

 

To find leaks in larger hydraulic systems, use professional services. Various tools and methods exist for detecting leaks in larger systems, including dyes that can help pinpoint difficult-to-find leaks.

 

You can find your own tools to test pressure, flow and temperature, which can help you detect leaks. However, you need to have a certain understanding of hydraulics to use these types of tools.

 

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