Using this Deltana hinge is easy. First, make sure the surface where you'll install it is clean and flat. Then, align the hinge with the door and the frame, and use the provided #9 x 3/4 wood screws to secure it. For best results, tighten the screws evenly. As for maintenance, it's a good idea to check the screws regularly to make sure they're tight. If the hinge starts to feel a bit stiff, you can apply a small amount of lubricant to the ball - bearing part. Avoid using harsh chemicals on the hinge as it might damage the finish. This hinge is designed for indoor use only, so don't expose it to extreme weather conditions or high humidity for long periods.