CNC engraving machine high temperature

Net friend to ask: why is my CNC engraving machine high temperature, electric opportunity not bad ah, how should I do? Yifan reply: hello. Don't know you say how high temperature, if internal above 130 degrees Celsius, the motor must be broken. If below 130 degrees, it is generally not bad. A simple judgment method, is to drop a few drops of water surface in the motor, if evaporates quickly, it needs to pay attention to.