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Home > Ordnance Documents and other related manuals > > Figure 1-16. Pivot Steer Torque Path
Reverse 2 range
Part B -X1000-3B Transnsmission Hydraulic System

Introduction to the X1100-3B Transmission, M1A1 Abrams Tank
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(10) Pivot steer torque path (fig. 1-16).
(a) Torque path to the left output.
Through splines, the
sun  gear  of  the  hydrostatic  steer  planetary  attaches  to  the
hydrostatic motor.  With the sun gear as the input and the ring gear
held stationary, the carrier becomes the output of the hydrostatic
motor planetary set.
The planetary carrier bolts to the gear that drives a second gear,
splined to the left output sun gear shaft.
The sun  gear shaft
rotates in the opposite direction of the hydrostatic motor.
Since
the output sun serves as the input and the ring gear as the reaction
member, the carrier becomes the output to the final drive.
(b) Torque  path  to  the  right  output.
The  driven  gear,
bolted to the steer planetary carrier, drives the steer drive shaft,
which in turn drives the right combining planetary sun gear.
This
sun gear rotates the same direction as the hydrostatic motor (or
opposite direction of the left sun gear).  Since the sun gear serves
as the input, and the ring gear serves as the reaction member, the
carrier serves as the output to the final drive.
Figure 1-16.
Pivot Steer Torque Path.
This completes part A of this lesson.
This lesson continues with
part B, the transmission hydraulic system.
24
OD1710






Western Governors University

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