过去车辆走行与制动部分所用的销子与套管因不耐磨,在一个段修期中(有的不到一个段修期)就几乎全部磨耗过限(有的仅磨破),在段修中需大部更換。那时,我段月修15辆客车,就有3台车床专门用来旋制销子与套管,另外还有两人专门锒套。更換销子套管成了车辆检修中的一个“老大难”问題。 In the past, the pins and bushings used in the running and braking of vehicles were almost completely worn out (and only worn) in one repair period (some less than one repair period) because of wear resistance. In the section Most need to be replaced in repair. At that time, I was repairing 15 buses a month, and three lathes were used to spin pins and sleeves. There were also two other specialized sleepers. Replacement of the pin tube has become a vehicle maintenance in a “chronic” problem.