Using this Bearack e - bike rack is easy. First, make sure your towball is the right size (1 7/8' or 50mm). Attach the rack to the towball. When loading your e - bikes, release the lever to tilt the platform down. This makes it easier to lift your heavy e - bikes onto the rack. Once the bikes are on the platform, slide the brackets down on the bikes to hold them firmly. Lock the brackets to keep your bikes secure. As for maintenance, regularly check the brackets and the locking mechanism to make sure they work properly. Keep the rack clean and dry to prevent rust. When not in use, store it in a dry place. Also, always check the weight limit of 60kg. Don't exceed it to ensure safe transportation of your e - bikes.