1. Check for any holes or oil leakage in the car's fuel tank
2. Be sure to replace it with a sharp blade without any abnormal blade
3. Ensure that the module can be started in areas where there is no risk to others
4. When starting the module, quickly operate the lever to prevent loss of control due to vibration
5. Before starting, it is necessary to ensure that the blade is not on the road and has not touched any other objects
6. It is necessary to use the spare parts provided by the original manufacturer, especially the blade
7. Check thoroughly if the cover is securely fastened.