When the car turns, there will be a noise on the rear axle, and the sound will disappear when running in a straight line. The fault can be diagnosed according to the following steps:

(1) top up the rear axle, turn the transmission into neutral and turn the rear wheel on either side. If the rotation direction of the two rear wheels is different, but there are abnormal noises, it indicates the tooth damage of the planet gear. If the two rear wheels are aligned, it is difficult for the planet gear to cross the shaft or the planet gear thrust pad is too thick.

(2) when the above tests are done, if the two rear wheels turn to be different and have no noise, but there are still different noises in the turning of the car, it shows that the planetary gear of the heavy truck parts in Baotou is not matched with the semi axle gear.

(3) although the car is low speed skiing and turning, although the body is slightly jitter, it should be checked to check whether the screw or rivet is loosened or whether the planetary gear is rotated in the north of Baotou.

(4) if the car starts or the speed of the car changes rapidly, there are metal impact sound, and the rear part of the car is slightly jitter when turning. It shows that the fixed rivet or bolt of the Baotou North running heavy card accessory differential shell has been seriously loosened and should be stopped and repaired immediately.