1. Machine shaking, unusual noise in work. fasten screws; change bearings; stop and pick out something unusual; stop and change roller and grind core; loosen belt or adjust axles.

2. Corn hulling is not clean per 100kg corn needs 12-16kg water; tempering time is 5-6m in summer, and 10-12m in winter; shine the unprocessed corn; cut down the input and strengthen the pressure; change the damagd roller.

3. Engine is hot. change a higher efficiency; cut down input; lower the pressure in exit.

4. too many broken grits, output is decreasing dry the corn; cut down tempering time; remove the water on surface; clean the sifter holes; change roller or grind top of the corn flour machine.

5. Clutch in corn flour machine does not work. adjust the angle of axles; change the clutch contact surface or spring of the corn flour machine.