Repairs and maintains railcars, according to blueprints and other specifications, production machinery, and other equipment using hand tools, power tools, and precision measuring instruments: Inspects machines and equipment visually, by touch, special knowledge, and training to locate causes of trouble Measures, cuts, and threads pipes, and replaces airlines using hand tools. Exposure to welding and burning fumes, odors, dust, gases, and uncomfortable noises from welding and burning, working in hot temperatures regularly, working in cold temperatures occasionally, driving automotive equipment, working with oil and grease, working with vibrations, and working alone occasionally.