Specialized knowledge and expertise in HVAC, motors, plumbing, electrical and mechanical systems are required to perform a variety of duties including: repairing heating, lighting, cooling, plumbing, ventilation systems and equipment; installation and maintenance of motors; and the installation and maintenance of specialized equipment. Fabricates, assembles, and tests parts as needed, such as various pumps, valves, laboratory equipment, heaters, compressors, experimental fire equipment, and other mechanical system parts using metal fabricating tools, common hand tools, power tools, and welding torches.