Using the Wahl De-Shedding Rake brush is easy. Start by gently running the brush through your cat's fur in the direction of hair growth. Make sure to be gentle, especially around sensitive areas. When grooming, take your time and be patient with your cat. As for maintenance, after each use, simply remove the loose hair from the pins. You can use a comb or your fingers. If the pins get dirty, you can wash them with mild soap and water. Then let them dry completely before using the brush again. Always store the brush in a dry place. Remember, don't use the brush on open wounds or irritated skin on your cat. If your cat shows any signs of discomfort during grooming, stop immediately.