SPECIALIZED EXPERIENCE: Must possess experience or training leading to an extensive knowledge of the mechanical makeup, operation, and working relationships of complex interconnecting systems, assemblies, and parts for a variety of combat, tactical, commercial, special purpose vehicles, and equipment; ability to diagnose, repair, overhaul, and modify interconnected complex systems on a variety of combat, tactical, commercial, special purpose vehicles, and equipment; extensive knowledge of state of the art electrical, electronic, complex hydraulic, pneumatic, and other major non-mechanical systems that have a functional relationship and effect on the operation of major mechanical systems; extensive knowledge of hydraulic lifting, loading, turning, and positioning systems and their mechanical, hydraulic, pneumatic, electrical, and electronic controls; skill and knowledge to develop or improvise methods, alter parts, and make repairs in the absence of technical guidelines (such as modifying parts to fit and mesh into systems for which the parts were not designed); improvise modifications to equipment to correct recurring malfunctions; and design modifications to meet special test requirements or other special needs. Inspects a large variety of heavy-duty mobile equipment (i.e., combat, tactical, etc.) and automotive vehicles (i.e., attack tanks, large cranes, tank retrievers, fire trucks, bridge transporters, armored vehicle launched bridges, bulldozers, road graders, crawler tractors, power shovels, self propelled earth compacting equipment, self propelled artillery, etc.).