Many customers have reported that the automatic wire drawing machine they purchased has a very sharp and piercing buzzing sound during use. When this situation occurs, it indicates that the automatic polishing machine equipment has malfunctioned, usually due to the following three reasons: 1. The interruption of three-phase power supply is mostly due to the disconnection of switches or wire packages. At this time, professional electricians should be sought for repair, and do not attempt it without authorization, as there is a risk of electric shock. 2. The automatic wire drawing machine has been idle for too long. Rusting or dead rust on bearings causes the motor to malfunction. Solution: Cut off the power, rotate the polishing disc by hand first, and then connect the power. If it still cannot rotate, the bearing should be replaced. 3. Touching the motor with your hand and feeling hot indicates that the motor is broken and should be replaced. 4. The conveyor of the wire drawing machine has noise, which is particularly loud during operation and often accompanied by noise. The fluctuation during the conveying process is uneven, and this situation is usually due to a damaged bearing that needs to be replaced. The above is today's content. If you are interested, please follow the wire drawing machine manufacturer.