Using this suction motor is simple. First, make sure your Electrolux Boss Z570 or Z570A vacuum cleaner is turned off and unplugged. Then, carefully install the motor according to the vacuum cleaner's manual. When using the vacuum, don't overwork it. Try not to vacuum up large or sharp objects as they might damage the motor. For maintenance, keep the motor clean. You can gently remove any dust or debris that accumulates around it. Remember, the 3 - month warranty only covers certain issues. If you notice any strange noises or the motor stops working during this time, contact us right away. But be aware that the warranty doesn't cover damage from improper use or normal wear - and - tear on the appearance. Also, return postage will be your responsibility if you need to send the motor back.