Using this Deltana hinge is easy. First, choose the right location on your door and frame. Then, use the provided #12 x 1/2 machine screws or #12 x 1 wood screws to attach the hinge securely. Make sure to align it properly for smooth operation. As for maintenance, keep the hinge clean. You can use a soft cloth to wipe off any dust or dirt. If the hinge starts to get a bit stiff, you can apply a small amount of lubricant. Just don't over - lubricate as it can attract more dirt. Also, check the screws regularly to ensure they are tight. If you notice any damage or excessive wear, it might be time to replace the hinge. This hinge is for indoor use only, so don't expose it to harsh outdoor conditions.