The speed adjustment of a car's tailgate usually involves fine-tuning the power system, but not all tailgates support direct adjustment, and caution should be exercised to ensure safety and proper operation of the tailgate. The following is a general guide on adjusting the speed of the car tailgate:

　　1、 Adjust position

　　1. Power pump station: The speed regulation of the car tailgate may be located inside the power pump station. There may be pressure adjustment screws here, which can change the working pressure of the hydraulic system by adjusting these screws, thereby affecting the lifting speed of the tailboard. Please note that this adjustment requires professional knowledge and experience, and it is not recommended for non professionals to operate it at will.

　　2. Remote control or control panel: Some advanced car tailgate systems may be equipped with a remote control or control panel with speed adjustment buttons. Users can directly adjust the lifting speed of the tailboard through these buttons. This adjustment method is relatively simple and intuitive, but it still needs to follow the operating instructions and safety regulations.

　　2、 Adjustment precautions

　　1. Safety: Before adjusting the speed of the tailboard, it is essential to ensure that the vehicle is in a safe state and that there are no people or objects under the tailboard to avoid accidents.

　　2. Follow the instructions: Strictly follow the user manual or manufacturer's guidance for the tailboard during operation. Different brands and models of tailboards may have different adjustment methods and safety requirements.

　　3. Professional maintenance: If you are unable to determine how to adjust the speed of the tailboard or encounter a malfunction, you should promptly contact professional maintenance personnel for handling.

　　3、 Summary

　　The speed adjustment of the car tailgate may involve pressure adjustment of the power pump station or speed buttons on the remote control/control panel. However, due to the differences and complexity of different tailboard systems, the specific adjustment methods and positions may vary. Therefore, before making any adjustments, it is essential to carefully read the user manual and follow relevant safety regulations. At the same time, in order to ensure the normal operation of the tailboard and extend its service life, it is recommended to perform regular maintenance and upkeep.