The sand making machine plays an important role in various ore sand making production lines. It is the * advanced and practical equipment among the sand making equipment at present. Of course, in daily production and use, there will be some small faults, such as unstable operation and excessive jitter. What is causing this?        1. Reasons for unstable operation and large shaking of the sand making machine:
　　 1. There are obstructions in the flow path of the impeller, which makes the feeding uneven and swings;
　　2. The wearing parts on the impeller of the equipment are more severely worn, causing jitter due to the internal imbalance of the equipment;
　　3. Feeding granularity is too large: the feeding granularity * exceeds the granularity that the sand making machine can withstand, and the equipment runs under load.
　　 2. Methods to solve the uneven running and large jitter of the sand making machine:
　　 1. Strictly control the feeding size of the sand making machine, and cannot exceed the allowable value of the equipment;
　　2, take out the obstruction on the impeller flow path, and often clean and maintain the crushing cavity;
　　3. Regularly maintain the equipment, check the wear of each part, replace the wearing parts, and balance the internal impeller of the sand making machine.