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基层修理单位中,有的维修人员在没有准确判断故障部位的情况下,就盲目对汽车机件乱拆卸、乱调整。其结果不仅原有故障得不到排除,反而人为地制造了新故障,使原有故障更加复杂化。那么,怎样才能快速、准确地判断故障部位并找出故障原因呢?本人在多年修理实践中的体会是:科学地掌握“问、听、看、闻、试”。 问——主要是向驾驶员了解故障发生前后的情况,问清故障是突然发生的,还是时好时坏,或是有一个过程,以及故障发生以后的情况等,这些都有助于故障的分析。 听——主要是听发动机的工作声音,听各运动机件有无不正常的声音,以判断发动
In the grassroots units, some maintenance personnel blindly disassembled and chaotically reconditioned automobile parts without accurately determining the fault location. As a result, not only the original fault can not be eliminated, but artificially created a new fault, making the original fault more complicated. So, how to quickly and accurately determine the fault location and find out the cause of the malfunction? My experience in many years of repair practice is: a scientific grasp of “ask, hear, read, smell, test.” Q. It is mainly to ask the driver about the situation before and after the failure, to find out if the failure happened suddenly, when it is bad, if there is a process, and after the failure, which will help the trouble analysis. Listen - mainly to listen to the work of the engine sound, listen to the movement of all parts with or without abnormal sound to determine the launch