1) phenomenon

When the gear lever is put into a gear position, when the vehicle is running, the transmission lever keeps jitter or jumps, so that the transmission can jump at any time.

(2) cause and analysis

1) after the deformation of the working face of the transmission fork of the Mercedes Benz parts in the north of Baotou, the ring grooves with the sliding gear or synchronizer are not vertical, so that the combination of the two is misaligned, or both has no gap. When the gear is rotated, the transmission fork collided with the ring groove end, thus making the transmission rod jitter.

2) the gap between the spline and the spline shaft of the sliding gear is too large to swing when it is working.

3) the gear pin of the gearshift shaft locking pin and the transmission cover hole gap is too large, or the lock spring is too soft, and the speed change fork shaft drives the speed change fork to move, so that the northern Baotou Mercedes Benz accessories are shivering.

(3) diagnosis and treatment

Diagnosis: extinguish the engine, suspend the gear jitter of the Mercedes Benz parts in the north of Baotou, remove the transmission cover to check, observe whether the fork face is bending and twisting, the groove of the guide block on the shaft and the working face of the lower end of the transmission rod are not worn over and the positioning locking device is normal.

Treatment: repair or replace worn parts.