) DC's do the work necessary for damage control, ship stability, firefighting, fire prevention, and chemical, biological and radiological (CBR) warfare defense. They also instruct personnel in the methods of damage control and CBR defense, and repair damage control equipment and systems.
) Electrician's Mates are responsible for the operation of a ship's electrical power generation systems, lighting systems, electrical equipment and electrical appliances. The duties include installation, operation, adjustment, routine maintenance, inspection, test and repair of electrical equipment. EM's also perform maintenance and repair of related electronic equipment.
Maintenance and Material Management (3-M) Coordinators at Sea
) Maintenance and Material Management (3-M) System Coordinators are responsible for the coordination of all facets of 3-M systems. The 3-M System Coordinator (3MC) must possess the ability to implement, eval
uate and coordinate Planned Maintenance System (PMS) actions and the ability to operate and effectively manage the Ships Maintenance Program. In addition, the 3MC may also serve as a unit's availability manager.
) Enginemen operate, service and repair internal combustion engines used to power some of theNavy's ships and most of the Navy's small craft. Most enginemen work with diesel engines. Enginemen also operate and maintain electrohydraulic controllable pitch propeller systems and steering engines, refrigeration and air conditioning systems, air compressors,desalinization plants and small auxiliary boilers. Enginemen perform their duties in surface ships.
Gas Turbine Systems Technician - Electrical
) GSE's operate, repair and perform organizational and intermediate maintenance on electrical components of gas turbine engines, main propulsion machinery, auxiliary equipment, propulsion control systems, and assigned electrical and electronic circuitry up to the printed circuit and alarm warning circuitry.
Gas Turbine Systems Technician - Mechanical
) These specially trained sailors operate, repair and perform organizational and intermediate maintenance on mechanical components of gas turbine engines, main propulsion machinery including gears, shafts and controllable pitch propellers; and assigned auxiliary equipment and propulsion control systems.
Hull Maintenance Technician
) HT's do the metal work necessaryto keep all types of shipboard structures and surfaces in good condition. They also maintain shipboard plumbing and marine sanitation systems, repair small boats, operate and maintain ballast control systems, and manage the Quality Assurance Program.
) Machinist's Mates operate and maintain steam turbines and reduction gears used for ship propulsion and auxiliary machinery such as turbogenerators, pumps and oil purifiers. They also maintain auxiliary machinery outside of main machinery spaces, such as electrohydraulic steering engines and elevators, refrigeration plants, air conditioning systems and desalinization plants. They may also operate and maintain compressed gas producing plants.
) Machinery Repairmen are skilled machine tool operators. They make replacement parts and repair or overhaul ship's engines and auxiliary systems. They also work on deck equipment including winches and hoists, condensers and heat exchange devices. MR's occasionally operate main propulsion and auxiliary machinery in addition to performing machine shop and repair duties.
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