REDUCTION GEARS AND RELATED EQUIPMENT

This chapter contains information on the operation, care and maintenance of reduction gears and related equipment found on Navy ships. All EN1s and ENCs must be familiar with the design and construction details of naval reduction gears and related equipment. When more detailed information is needed, refer to the manufacturers technical manual.

REDUCTION GEARS

The main reduction gears are the largest and most expensive single units of machinery found in the engineering department. When the main reduction gears are installed properly and are operated properly they give years of satisfactory service. However, when casualties occur to the main reduction gears they put any ship out of operation or force it to operate at reduced speed. Main reduction gear repairs are very costly. Usually they must be accomplished by a shipyard.