US Department of Defense - - Responsibilities: Troubleshoot, repair, modify and maintain a variety of construction, industrial, combat, tactical and power generation equipment; Repair and replace components of cooling, braking, exhaust, power train, or hydraulic systems on combat and tactical, automotive, and powered support equipment; Remove, adjust, or replace defective or worn parts and components; Perform operational inspections and ensure vehicles are properly serviced and repaired; perform preventative maintenance checks and services; and perform minor body work; Assist higher graded repairers in more complex repairs such as removing, repairing, or replacing major components such as engines, transmissions, differentials, steering boxes, and fuel injection pumps