Through the introduction of the traction manners of high-speed railway switches,the author summarizes common failure phenomena and fault seeking and judgment process.In combination with the actual situation,feasible solutions are proposed.%通过介绍高速铁路道岔牵引方式,总结出ZD（J）9转辙机配套外锁闭道岔常见故障现象以及流程化的查找判断方法,并结合现场实际情况提出可行的解决方案。
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