When installing the car shell, you need to make sure that it is firmly connected to the vehicle to avoid loosening and causing unstable driving. At the same time, pay attention to the installation position and angle of the shell to ensure that the vehicle appearance is beautiful and meets the safety requirements.

Wheel rattling may be caused by damaged bearings or foreign objects in the tires. You need to check the bearings and clean the foreign objects in the tires to make sure the wheels are functioning properly.

For ESC maintenance, you need to check the connecting wires, heat sinks and capacitors regularly for damage or aging. Also, keep the ESC clean to avoid dust and debris affecting its performance.

The motor does not turn may be loose or damaged connecting wires, or the motor itself may be damaged. You need to check the connecting wire and replace the damaged motor.

The swing arm may be loose or worn out, check and tighten the screws. If the screw is damaged, replace it with a new one.