Cephas G Waycross , GA January 01, 2023 Appliance: Samsung Gas Range NX58F5500SS/AA-0000 Two cooktop valves not turning damaged assy tubes to burners I replaced the Valve Assemblies on the right rear burner and the gas tube from the manifold to the same burner. I removed the cooktop frame by removing the screws around the burners. This allowed access to the manifold panel which was removed by unscrewing the top, front, and bottom screws. I now had access to the ignition switches which were removed by gently pulling them off with the help of a flathead screwdriver. Using an adjustable wrench, I disconnected the gas tube from the valve and the burner. To remove the gas tube from the burner, I secured the burner with pliers being careful to hold it in the area where I felt the metal was the strongest while avoiding the piezo. I then used a Philips screwdriver to unscrew the valves. Reassembly was in reverse order. Read More... Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes Tools: Adjustable Wrench, Pliers, Screwdrivers