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 equipment; Remove, adjust, or replace defective parts and perform basic inspections and preventive maintenance; Assist higher graded repairers with more complex repairs such as engines, transmissions, differentials, steering boxes, fuel injection pumps; Operate motor vehicles to check work