U.S. Army Warrant Officer Randy Saucedo, 2nd Staff and Faculty Company Marine Engineering Officer Basic Course student, performs a tune-up on a diesel Landing Craft Utility-2000 generator at Fort Eustis, Va., May 21, 2015. During the tune-up, generator parts must be gauged to exact torque values to prevent serious damage. (U.S. Air Force photo by Staff Sgt. Natasha Stannard/Released)