Performs major system component overhaul/rebuild, repair/replacement and troubleshooting as needed, to include but not limited to, power-plant systems, brake systems, steering systems, hydraulic systems, diesel and gas systems, air systems, starting systems, ignition systems and electrical systems in addition to the following components, power-plant, brake, fuel, steering, hydraulic, air, starting, ignition and electrical system. Trouble-shoots, repairs; services; performs modifications on, and operates powered ground support equipment such as AC and DC power generators, air compressors, blowers, heaters, portable lighting units, deicers and non-powered equipment to include work stands, jacks, ramps, tow-bars, etc.