Using this bleeder screw is easy. First, locate the rear brake caliper on your vehicle. Find the bleeder valve where this screw will be installed. Refer to the diagram to ensure proper placement. When installing, make sure to hand - tighten it first, then use a wrench to give it a final snug turn, but don't over - tighten. As for maintenance, check the screw periodically for any signs of corrosion or damage. If you notice any issues, replace it right away. Keep it clean to ensure a good seal and long - lasting performance. When bleeding the brakes, follow the standard brake bleeding procedure in your vehicle's manual.