What reason is it difficult to shift the transmission of high-altitude working truck

The quality of the working car at altitude is no problem, but also the need for the majority of "owners" with maintenance, know some fault knowledge is also necessary, so as to extend the life of the car, and when the situation can be dealt with in time! Otherwise sometimes the sudden failure do not know how to do embarrassing!

Like high-altitude working car transmission shift difficulty, is a common fault, the following special steam network for everyone to analyze the reason!

1. The control mechanism of the high-altitude working car is maladjusted, the gear shift lever and the pull rod are bent and deformed, and the movable joints are worn loose, resulting in the gear meshing is not in place.

2, high altitude operation car fork shaft bending, corrosion or burr, lock with spring or interlock pin is stuck, so that the fork shaft can not move in the axial direction; Fork fixed loose, bending deformation or serious wear; Gear end face contact friction produces flying edge, or splines of engagement sleeve wear, fuzz or damage.

3. The cone ring teeth of the high-altitude vehicle synchronizer are worn into convex shape or broken along the axis; The friction cone spiral groove is worn or polished, so that the clearance between the tooth ring end face and the gear end face is reduced, or even no clearance, which reduces the friction effect and makes the synchronizer ineffective.

4. Improper selection of lubricating oil for high-altitude working cars, or the use of inferior gear oil, which decomposes and gelling seriously at high temperature, making it difficult for each gear to move, leading to shifting difficulties. Another example is that the oil film is easily adsorbed on one side of the cone ring due to the high degree of voltage, which makes the synchronizer ineffective. Or the high oil temperature makes the lubricating oil gel and fill the cone ring surface and spiral groove of the synchronizer, leading to the synchronizer damage.

5. The lock pin of the high-altitude locking pin synchronizer is loose and loose. The axial groove on the slide block and spline of the sliding block synchronizer is worn too much, and the spring spring of the sliding block is too soft or broken, so that the sliding block is stuck in the groove.

6, high altitude operation car synchronizer assembly swing on the output shaft is too large, or a long period of neutral flout coasting, intermediate shaft does not work, resulting in the output shaft drag dry grinding and high heat, synchronizer damage, clutch separation is not complete.

The above methods know, in the case of this is a good solution!