Using your Electrolux ErgoRapido ZB5011 or ZB5012 with this brush roller is simple. First, make sure your vacuum cleaner is turned off and unplugged. Then, locate the old brush roller and carefully remove it. Place the new brush roller in its position and ensure it fits snugly. Plug in your vacuum and you're ready to go. As for maintenance, regularly check the brush roller for any debris or hair that might get wrapped around it. Remove these gently to keep the roller working efficiently. When not in use, store your vacuum cleaner in a dry place. And remember, if you have any issues, our guarantee has you covered.