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 ships main propulsion and auxiliary systems including, but not limited to Steam, Gas Turbine, Diesel propulsion, propulsion shafting, propellers, rudders and.