1. Corn Grinder vibrates seriously. tighten the motor screws; tighten the ground bolts; replace the bearing; rearrange the hammer ; adjust the hammer, making sure different of weight not more than five gram.

2. The noise from the corn grinder Adjust the belt; stop the machine, clean the things; replace the hammer; stop the machine and change parts.

3. Separating the grits are not pure Change the slice and sieve; reassemble the slice.

4. Tiny husks in the corn grits repair blower; clean the air channel 5. The production decreases. Repair the motorm of the corn grinder; replace the hammer; make the input uniform.