Using our overhead door warning barriers is easy. First, use the provided concrete installation kit to install the barriers in the desired location. Make sure the area is clear of any obstacles. The barriers are mainly for warning fork trucks and other traffic, not to stop them forcefully. When the wooden beam gets damaged, you can easily replace it by removing the old one and installing a new 4' x 4' wooden beam. Keep an eye on the condition of the tubular steel uprights. If you notice any signs of rust or damage, you can use a rust - resistant paint to touch up. Regularly check the overall stability of the barriers. If the barriers are loose, tighten the installation parts. Also, always follow OSHA safety regulations when using these barriers.