Using the Klein Tools VDV205 - 036 is straightforward. First, make sure you have the appropriate Klein's VDV200 - 010 insulated terminals (sold separately). Place the terminal in the die and position the wire properly. Then, use a compatible crimping tool to apply pressure until the connection is secure. When it comes to maintenance, keep the die clean by wiping it with a dry cloth after each use. Avoid using abrasive materials that could damage the die's surface. Store it in a dry place to prevent rusting. Always check for any signs of wear or damage before each use. If you notice any issues, contact Klein's customer service as the product comes with a lifetime warranty for material defects and workmanship during its normal life.