How should a feed grinder be repaired when it is not working?

First, check whether the power supply is normal, and make sure the plug is firmly connected, the switch is turned on, and the power supply is working properly. If there is no problem with the power supply, then check whether the motor is abnormally overheating, whether the connecting wires are loose or damaged, and replace or repair the faulty components in a timely manner. At the same time, check the wear condition of the blades. If the wear is severe, replace them with new blades. In addition, if the machine stops due to overload, check whether the feed rate is too high, and appropriately reduce the feed to lower the load. If none of the above methods work, there may be a fault in the mechanical components, and it is recommended to have a professional inspect and repair it.