Using these terminals is easy. First, make sure your wire is within the 22 - 18 AWG range. Strip the end of the wire to an appropriate length. Then, insert the wire into the terminal. Use a suitable crimping tool to firmly attach the terminal to the wire. When working with these terminals, always ensure that the voltage in your circuit does not exceed 600VAC to avoid any electrical hazards. To maintain these terminals, keep them in a dry and clean place. If they get dirty, you can use a dry cloth to gently wipe them. Avoid using any harsh chemicals as they may damage the insulation. With proper use and maintenance, these terminals will serve you well for a long time.