TM 55-1945-205-24-3-3
0003 00 1
UNIT, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE
WARPING TUG
MARINE GEAR
DESCRIPTION AND DATA
LOCATION AND DESCRIPTION OF MAJOR COMPONENTS
The marine gear is attached directly to the flywheel housing of the engine and to the drive shaft at the output flange.
There are two marine gears: one for the starboard engine and one for the port engine. The marine gear weighs
approximately 561 lb dry weight. The marine gear consists of five major subassemblies: the main housing group, the
forward clutch group, the reverse clutch group, the input group and the output group.
DESCRIPTION OF MAIN HOUSING GROUP
The main housing group consists of the main housing assembly, the manifold assembly, oil pump assembly, bearing
carrier and electronic control valve assembly.
Main Housing Assembly
The main housing assembly is a high quality casting with integral mounting pads that support the marine gear on the
engine bed rails. The housing contains the following: gears, shafting and forward bearings for the drive components.
The flywheel housing adaptor is cast as an integral part of the assembly. The electronic control valve is positioned on
top of the main housing assembly.
