1. The sanding machine used for trimming is usually only used to grind off trace amounts of workpiece surfaces. Its purpose is to refine the surface of the workpiece, and the quality of the grinding depends on the pressure, but do not apply excessive force to the sanding machine for grinding. Unnecessary excessive force will only quickly damage the sandpaper and shorten the service life of the sanding machine.

2. Do not use the sanding machine without sandpaper installed, as it will seriously damage the grinding disc.

3. When operating, please be careful not to cover the ventilation hole with your palm or fingers.

4. If a layer of cloth is wrapped around the sandpaper surface on the grinding disc, it can be used for extremely fine grinding, such as polishing furniture surfaces or other fine smooth surfaces.

5. The size of the sandpaper used is just enough to divide a commonly available large sandpaper (standard size 228mm × 280mm) into three equal pieces. Please choose sandpaper with the appropriate grit size required for the job. A grit of 60 is coarse sandpaper, a grit of 100 is medium sandpaper, and a grit of 150 is fine sandpaper.

6. Pull out the clamping rod and pull it up slightly. Insert one end of the prepared sandpaper into the clamping port, wrap the sandpaper around the grinding disc, and clamp the other end in the same way to the clamping port on the other end of the grinding disc (before inserting into the clamping port, if the sandpaper can be bent in advance, it will be easier to install). After clamping the sandpaper, push the clamping rod back to its original position. After installation, please check if the clamp is securely clamped. When grinding without clamping the sandpaper, uniform and complete sanding effect cannot be obtained.