A newly purchased feed grinder needs a series of debugging work. First, check whether the installation of each component is firm and whether there is any looseness. Then, adjust the tightness of the belt to make it within the appropriate range. Next, run it without load for a period of time to observe whether the machine runs smoothly and whether there is any abnormal noise and vibration. Also test whether the feeding and discharging are smooth, and adjust the feeding speed and the angle of the discharging port. Finally, according to the crushing requirements, select the appropriate screen and install it. For example, if the belt is too loose, it may cause slippage and affect the crushing efficiency; if the feeding speed is too fast, it may cause the machine to be blocked.