Using this Fisher & Paykel door closing hook stop is easy. Just find the appropriate place on the left - hand door of your 635 series fridge where it needs to be installed. Align the 3 holes of the hook with the corresponding holes on the fridge and secure it. When handling the part, be careful not to drop it as it's made of plastic and could break. To maintain it, clean it regularly with a soft, damp cloth to remove any dust or dirt. Check the hook periodically to make sure it's still firmly attached and working effectively to close the door properly.