Using this Deltana hinge is super easy. First, make sure your door or cabinet is the right size for the 3 x 2 - 1/2 dimensions. Line up the hinge with the door and the frame. Use the provided #10 x 1' wood screws to secure it in place. For best results, use a screwdriver that fits the screws properly. When it comes to maintenance, keep the hinge clean. You can use a soft, dry cloth to wipe away any dust or debris. If it starts to look a bit dull, you can use a mild brass cleaner to restore its shine. Just make sure to follow the cleaner's instructions. As for precautions, don't force the hinge open or closed too hard, as this could damage the brass. Also, keep it away from harsh chemicals, as they can corrode the finish.