TM 5-3810-295-34
CHAPTER 5
REPAIR OF CRANE DRIVE AND TRAIN
Section I. REPAIR OF CRANE REDUCTION GEAR
complete clutch power take-off and reduction gear
5-1.
Description
assembled into a single unit The clutch is an over-center
As is shown in figure 5-1, the crane reduction gear
type, operating through a 3:1 reduction arrangement.
transfers mechanical power from the crane engine to the
The output shaft rotates in the direction of the engine
drive train components via the propeller shaft, worm gear
rotation.
and boom hoist shaft. The gear itself consists of a
Figure 5-1. Inter-relationship of crane drive train major components.
5-1
