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汽车维护中常见的误区 1.螺栓越紧越好。汽车上用螺栓、螺母连接的紧固件很多,应保证其有足够的预紧力,但也不能拧得过紧。若拧得过紧,将使连接件在外力的作用下产生永久变形;也会使螺栓产生拉伸永久变形,预紧力反而下降,甚至造成滑扣或折断现象。
Common misunderstandings in vehicle maintenance 1. The tighter and better bolts. Car with bolts, nuts, fasteners connected a lot, should ensure that they have sufficient preload, but it can not be over-tightened. If over tightened, will make the connector under the action of external forces have permanent deformation; will also make the bolt permanent tensile deformation, preload but decreased, or even cause the slider or broken phenomenon.