Use and maintenance of accumulator(2)

The accumulator is a dangerous part in the hydraulic system, so pay special attention to safety during operation.

The fault diagnosis and troubleshooting of accumulator includes not only the fault diagnosis and troubleshooting of accumulator itself, but also the fault diagnosis and troubleshooting of the hydraulic system where the accumulator is located. The two are intertwined.

The main contents of fault diagnosis are:

① determine the nature and severity of the fault. According to the site conditions, judge whether there is a fault, what kind of problem it is (pressure, speed, action or others), and the severity of the problem (normal, minor fault, general fault or serious fault).

② Find out the failure components and failure positions. Find out the fault point according to the symptoms and relevant information, so as to further eliminate the fault. Here we mainly find out “where the problem is”.

③ Further find the initial cause of the fault. Such as hydraulic oil pollution, low component reliability, environmental factors do not meet the requirements, etc. It is important to find out the external cause of the fault.

④ Mechanism analysis. Conduct in-depth analysis and Discussion on the causal chain of the fault, and clarify the context of the problem.

⑤ Predict the fault development trend. According to the current situation of system wear and deterioration and the theoretical and empirical data of speed and component service life, predict the future condition of accumulator or hydraulic system. Analysis, comparison, statistics, induction and synthesis to find out the law.

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