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2020-03-23Exhibition, product

Why hydraulic hose bursts?

 

Many excavators have experienced the problem of hydraulic hose bursts. When a fault occurs, the first thing everyone thinks of is to replace the oil hose, but they haven’t thought about what caused the hose burst. The following will explain the reasons for the burst.

1. Hydraulic hose aging
The situation of hydraulic hose bursting is very rare in new cars. All of them are caused by oil leaks and pipe bursts after 4-5 years of use of the excavator. This is actually a problem caused by the aging of hydraulic hoses. Is a very common cause.

2. High frequency vibration
Hydraulic pumps, motors and other working devices have vibrations at work. Such high-frequency vibrations cannot be completely eliminated. Long-term abnormal vibrations can cause fatigue and wear of hydraulic oil pipes. Therefore, the pipe clamps and protective sleeves of hydraulic pipes must be checked frequently.

3. Hydraulic hose quality problems
Generally, some excavator manufacturers, in order to reduce costs, use relatively inexpensive hydraulic hoses, resulting in low quality. After a period of use, tube burst problems occur.

4. Hydraulic hose crimping problem
The metal joints on both ends of the hydraulic hose are not crimped. As a result, the hydraulic hose leaks or even breaks. Good pressure pipe technology can maximize the service life of the hydraulic pipe.

5. Excessive pressure in hydraulic lines
The hydraulic hose often bursts. You need to consider whether the hydraulic oil pipe bursts due to the excessive pressure in the hydraulic system. In this case, you must first use a pressure gauge to measure whether the corresponding pipeline pressure is too high.

hydraulic hose SAE 100 R9 R10 R12 (2)

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