The main signs that the transmission shaft is in a bad condition are the sound and buffeting. The buffeting and ringing of the drive shaft can be judged by the following phenomena.

1. At starting and low speed, the body will shake and have a sound of impact, which is more obvious when the speed is changed. At this time, if the wear and relaxation of the universal joint bearing, spline shaft and spline sleeve keyway as well as the loosening of all parts of the fixing bolts are checked, it can be judged whether the sound and buffering are caused by the relaxation and relaxation of the transmission shaft. Can also be used to judge the left and right to move the shaft to determine its open movement.

2, when the car is running, you can hear the periodic sound, the faster the speed, the greater the sound and vibration. The noise and vibration change greatly when the neutral sliding, serious body cab have obvious feeling. At this time, we can try to set up the rear bridge of the car (special attention should be paid to ensure safety) to make the drive shaft run at all kinds of speed, and observe the swing amplitude of the drive shaft.

The above information is provided by xingtai yuantuo auto parts manufacturing co., LTD.

Company website: http://www.xtytwy.com