1. Working speed less than 1000 RPM. Not recommended for high RPM angle grinders, it is suggested to install bush hammer on adjustable speed angle grinder, such as makita 9227CB/9237CB polisher, speed lower than 1000RPM is suggested. 30-pin bush hammer roller is not recommended for 3-phase travel behind the grinder, too much pressure may break the bearings inside the roller. For 3-phase grinder, please use 45-pin bush hammer roller.
2. Do not apply too much pressure on the bush hammer . This will prevent the roller from stopping and therefore decrease the life of the carbide tips.
3. Adjust the plate distance for different finishes . For double-plate bush hammers, we can adjust the distance between two plates to have a finer or rougher finish. Widening the distance can have a rougher finish; on the contrary, the finish is finer if the distance is shortened.
4. After each use, clean the rollers, dry them and apply oil to the spindles . It will be ideal to dip the rollers in oil to prevent the spindle from rusting. The tips of the rollers can be coated with diamond discs when they become inefficient.