Disorder phenomenon is one of the most common faults in manual transmissions. The low-plate manual transmission disorder phenomenon refers to the fact that the clutch technical condition is normal.

common error
Gear disorder is one of the most common faults in manual transmissions. The disorder of low-plate manual transmission refers to the fact that the transmission is engaged in two gears at the same time when the clutch technical condition is normal, or the result is linked to other gears when the gears are required. 's gear. There are very few reasons for this kind of failure, so correspondingly, its elimination methods and solutions are also much less. First, the failure of the interlocking device: such as the fork shaft, the interlocking pin or the interlocking steel ball is too worn. Second, the arc-shaped working surface of the lower end of the shift lever is too worn or the groove of the shift block on the shift fork shaft is too worn.
The third point is that the positioning pin of the shift lever ball head is broken or the ball hole and ball head are worn too loosely, which will also cause the phenomenon of low-plate manual transmission to skip gears. In short, the main reason for the disorder is caused by the failure of the transmission operating mechanism. With the above three points of analysis, we come to a one-to-one corresponding diagnosis and exclusion.
(1) When a gear is required, the result is another gear: shake the gear lever and check its swing angle. If it exceeds the normal range, the fault is caused by the loose fitting of the ball head positioning pin at the lower end of the gear lever and the positioning groove or Caused by excessive wear of the ball head and ball hole.
If the shift lever of the manual transmission of the flatbed truck swings 360 degrees, the positioning pin is broken.
(2) If the swing angle is normal and the gear cannot be engaged or taken off, the fault is caused by the lower end of the shift lever coming out of the groove (the reason for the disengagement is the wear of the arc working surface of the lower end or the wear of the guide groove).
(3) Two gears are engaged at the same time: the fault is caused by the failure of the interlock device. Difficulty in gear shifting means that the clutch technology is in good condition, but the gear cannot be smoothly engaged when shifting, and gear banging noise often occurs. Synchronizer failure is one of the reasons for him.