1. Check the open size of feeder, whether it is too small, causing by little materials through-put. In this case, should set to the proper size.
2. Check whether the side baffle is worn or not. If it is worn, it would cause some certain faults, or even cause the machine out of service. So should check frequently.
3. Check whether the roll surface is worn or not. The worn roll surface will influence the shaping of the material between two rollers, even leading to the vibration of reducer and torsion plate. Repair in time.