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ji dong che wei xiu bao yang qie mo nong qiao cheng zhuo
Author(s): 
Pages: 90
Year: Issue:  3
Journal: Farm Machinery Using & Maintenance

Abstract: 在机动车的维修保养中,一些驾驶员不能按技术要求做,常常想当然,以至弄巧成拙,导致机件损坏或酿成机械事故.据笔者平时所了解,下面列举机车使用维护保养中的常见误区,以引起注意.1.螺栓宁紧勿松机车上用螺栓联接的坚固件,如缸盖、连杆、主轴承盖等,都必须有足够的预紧力.有些人担心螺栓松动,便误认为螺栓紧比松好.若螺栓拧过紧,超过规定扭矩值,一方面将使联接件在外力作用下产生永久变形、裂纹和凸起,造成结合面不平;另一方面,将使螺栓产生拉伸永久变形,预紧力反而下降,甚至造成滑扣或拆断.而对于气缸盖、滤清器纸质滤芯、沉淀杯等处的固定螺栓,拧得过紧时易造成机件损坏.……
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