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一台CA141型汽车进行了四轮保养,在装配左后轮毂时,驾驶员觉得原锁紧螺母不够保险,就从报废车上卸下一个锁紧螺母拧在原锁紧螺母的外面。汽车跑了一段时间,发现左半轴轴头处热得厉害。拆下半轴一看,后加上的锁紧螺母脱落了,半轴套管外露部分的螺纹全部磨坏。这时发现后轮毂轴承间隙过大,想要调整一下,可是原锁紧螺母却相当难拆,两个人用一米多长的杠杆使劲扳,锁紧螺母纹丝不动。后来两人一叫号,只听“嘎嘣”一声,套筒扳手裂为两半。没办法,只好用电焊机将锁紧
A CA141 four-wheeled vehicle was repaired. When the left rear hub was assembled, the driver felt that the original locknut was not safe enough to remove a locknut from the scrapped truck and screw it out of the original locknut. The car ran for some time and found that the left half-shaft head at the heat was fierce. Remove the shaft to see, after the addition of the lock nut off, the exposed part of the half-shaft casing thread all worn out. At this time found that the rear hub bearing clearance is too large, you want to adjust, but the original lock nut is quite hard to disassemble, two people with one meter long lever pull pull, lock nut motionless. Later, a call for two people, just listen to “Gaga” soon, socket wrench split in half. No way, had to use electric welding machine will be locked