What to do if the Flatbed semi trailer has difficulty shifting gears? ‌

In the process of using a Flatbed semi trailer, with long-term operation, it is inevitable to encounter some problems, among which difficulty in shifting gears is a common problem. Faced with this situation, many drivers may feel helpless.

So, how to solve the problem of difficult shifting gears of Flatbed semi trailers? Here are some practical solutions.

First, check whether the gear rod or ball joint is worn. The gear rod of the Flatbed semi trailer is connected to multiple ball joints from the bottom to the top of the gearbox, and these ball joints are prone to wear during long-term use. Once the ball joint is found to be worn, it must be replaced in time, otherwise it will cause uneven shifting or even failure to shift gears.

Secondly, pay attention to the status of the drive cable. Most modern Flatbed semi trailers use a drive cable design. After long-term use, the cable may be damaged or elongated. This will directly affect the gear shifting and make shifting difficult. Therefore, once a problem is found in the cable, it should be replaced immediately, and the solenoid valve pin should be checked for damage, and the fixing springs on both sides of the lower cover should be cleaned.

In addition, check whether the base screws of the shift lever are tightened. Whether the gear lever is located in the cab or mounted on the engine, there are fixing screws. If these screws are loose, it will also cause difficulty in shifting. Therefore, it is very necessary to check and tighten these screws regularly.

Finally, carefully check the spline shaft of the gearbox spline sleeve. If the spline sleeve of the gearbox end cover or the spline shaft of the upper cover is severely worn, it will directly lead to gear transmission difficulties and even cause gear transmission failure. Therefore, in daily use, pay special attention to the wear of these parts and perform maintenance and replacement in time.

In short, there are many reasons for the difficulty of shifting Flatbed semi trailers, which requires drivers to observe carefully in daily use and perform maintenance and repair in time. Only in this way can the normal operation of the vehicle be ensured and the transportation efficiency and safety can be improved.