1. Install the hot sale 9" cutting off wheel in the hole perpendicular to the axis on the round bar of the grinding wheel dresser, adjust the position of the round bar of the dresser trimer, make the diamond tip lower than the center of the grinding plate 1-2mm, and fasten the bracket. 2. The hand grinder table is fed longitudinally to the hand wheel to bring the diamond close to the end face of the plate. 3. After the diamond is in contact with the end surface of the grinding plate, the longitudinal feeding of the table is stopped, and the hand-shake frame is fed laterally to the hand wheel, so that the diamond reciprocates back and forth on the end face of the grinding plate. After multiple feeding and trimming, the end surface of the grinding disc is ground into a concave plane, and the edge of the transmission line of the grinding disc is left with a clamping edge of H=3 mm. Pay attention to the correction of the sharp and durable cutting wheel: 1. Pay attention to the rigidity of the diamond rod to prevent the diamond from vibrating during correction. 2. When the correction is made, the manual feed of the table should be slow, and pay attention to the width of the control clip. 3. Generally, the end face of the grinding wheel should be trimmed first, and then the circumferential surface of the grinding wheel should be trimmed.