Standing, balancing, walking, climbing ladders or equipment, reaching above shoulder or out in front, manual dexterity, pushing, pulling, kneeling, bending, seeing, hearing and occasionally lowering self into confined spaces, crawling through small openings and working in reclined positions, as needed. Installs, maintains, and repairs ship's propulsion and auxiliary systems; including, but not limited to, Steam, Turbine, Electrical, and Diesel propulsion systems, rudders and steering gear, elevators, and Navy UNREP systems.