Through analysis of the faults of open failure, opening and excessive buffer time occurring during the process of debugging and operation of the TRT fast shutoff valve, the cause of the problems were found out and treated. Opinions on troubleshooting and main-tenance of the hydraulic system were also provided.%通过对TRT快切阀在调试和运行过程中发生的阀打不开、打开和缓冲时间长等故障现象的分析，找出故障原因并处理，并对液压系统故障的查找和维护提出自己的见解。
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