1. Regularly shut down and open the observation door to observe the internal wear of the impact sand making machine. The wear level of the center inlet pipe, cone cap, impeller upper and lower runner linings, circumferential guard plates, and wear blocks should be replaced or replaced in time after wear. When repairing and replacing the wear blocks, they should be replaced at the same time to ensure that the wear blocks have the same weight. It is strictly forbidden to open the observation door to observe the internal working conditions during the working process of the crusher to avoid danger. If the impeller body is found to be worn, replace it in time and seek repair from the manufacturer. In , it is strictly forbidden to make impellers without the consent of the manufacturer.      2. The sand making machine should add grease in an appropriate amount when it is working until it is working hours. When it is working, it is necessary to open the main shaft assembly to clean the bearing. If it is working to the hour, it be replaced with a new bearing. .
     3. The tensioning force of the drive triangle tape should be adjusted appropriately to ensure that the triangle tape should be grouped and matched so that the length of each group is as consistent as possible. It should be adjusted so that the current difference between the two motors is not affected.