Uses and maintains tools, equipment and measuring devices such as electric, gas and propane welding machines, pneumatic, gasoline and electrical grinders, straight edges, electric generators, pre-heaters and torches; running maintenance shall include such functions as check and fill oil/coolant on gas welders, repair gas and electric welding leads as required. Performs such track maintenance functions such as alignment of rail joints, tightening of loose joints, realigning and gauging of switches, respiking frogs, rebuilding heel blocks and replacing tie and rail fasteners.