M2/M3 BRADLEY FIGHTING VEHICLE: TURRET - OD1609 LESSON 2/TASK 2
LESSON 2
REPLACING THE TURRET TRAVERSE DRIVE GEARBOX, GUN
ELEVATION DRIVE GEARBOX, HANDWHEEL DRIVE CHAIN,
AND ENCODER AND SLIPRING ASSEMBLY
TASK 2.
Describe the procedures for replacing the gun elevation drive gearbox
and handwheel drive chain.
CONDITIONS
Within a self-study environment and given the subcourse text, without assistance.
STANDARDS
Within one hour
REFERENCES
No supplementary references are needed for this task.
1.
Introduction
As introduced in task 1 of this lesson, the gun elevation drive is one of the
drives that is used to position the 25mm gun and TOW launcher automatically.
Whereas, the handwheel drive chain manually elevates or depresses the 25mm gun,
coax machinegun, or TOW launcher.
In this task, examples of the procedures used to replace the gun elevation drive
gearbox and the handwheel drive chain will be provided.
2.
Maintenance of the Gun Elevation Drive Gearbox
This paragraph will cover the removal and installation procedures for the gun
elevation drive gearbox.
a. Initial Setup.
(1) Tools: Turret mechanic's tool kit.
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