1. Before starting the operation, it is necessary to clarify the situation of the site (terrain, nature of hedges, location of obstacles, surrounding danger, etc.), and remove obstacles that can be moved.
2. With the operator as the center, within a radius of 15 meters is a dangerous area. To prevent others from entering the area, ropes should be used to enclose the area or a wooden sign should be erected as a warning. In addition, when several people are working at the same time, they should greet each other from time to time and keep a safe distance.
3. Before starting the operation, check all parts of the machine body carefully, and start the operation only after confirming that there is no loosening, oil leakage, damage or deformation of the screws. Especially the connecting parts should be checked carefully.
4. It can be used after confirming that there is no chipping, cracking, or bending. Can not use the abnormality.
5. Please use polished sharp ones.
6. To prevent chipping during grinding, be sure to file the root of the tooth into an arc.
7. After tightening the screws, first turn it by hand to check if there is any up-and-down swing or abnormal noise. If it swings up and down, it may cause abnormal vibration or loosening of the fixed part.