Using this Domel vacuum motor fan unit is quite straightforward. First, make sure your vacuum cleaner is turned off and unplugged before installation. Check if the part number on the motor matches your vacuum cleaner's requirements. If it does, carefully install the motor in the designated place. When using the vacuum cleaner, ensure it's connected to the right voltage (240VAC 50/60Hz). Don't run it for an extended period continuously as it may overheat. For maintenance, regularly clean the fan to remove dust and debris. This will help the motor work efficiently and last longer. If you notice any strange noises or problems, stop using it immediately and contact a professional.