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Page Title:
Power and manual controls, elevation/traverse switch |
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|  MIL-T-62222(AT)
a. Power and manual controls, elevation/traverse switch on:
1. Elevate the gun to 19 degrees, first with manual and then with power controls.
With the gun at 19 degree elevation, power traverse the turret for 360 degrees.
2. Depress the gun to 8 degrees and slowly power traverse the turret from the front
of the vehicle to the rear and observe for gun beginning to jump to nominal zero
after passing a traverse angle 95 degrees from the vehicle rear centerline.
3. Return the turret to face forward and, using maximum power, traverse the turret to
the rear and observe for gun jump to nominal zero without striking the vehicle
while holding the control handle in full depression position.
4. Continue rapid traverse over the rear portion of the vehicle. The gun shall not,
strike any portion of the vehicle even though the control handles are at full
depression. Observe for gun return to 8 degrees full depression as follows:
a. At an approximate angle of 95 degrees from the vehicle rear centerline.
b. Without striking the vehicle.
5. Repeat 2, 3, and 4 with power traversing from the opposite direction.
6. Perform a similar test by hand traversing the turret and depressing the gun with
the manual hand pump.
7. The forward 85 degree traverse angle at 8 degree gun depression on each side of
the vehicle front centerline shall be maintained. The gun shall pass over the rear
deck without striking any portion of the vehicle.
b. Manual controls, elevation switch off:
1. Depress the gun to 5 degrees and traverse the turret from an angle 95 degrees
forward of the vehicle rear centerline to an angle 28 degrees from the vehicle rear
centerline. Approach the 28 degree limiting angle slowly.
2. At 28 degrees, raise the gun to zero degrees and continue traversing over the rear
deck to the opposite 28 degree angle. Depress the gun to 5 degrees and continue
traversing in the same direction to an angle 95 degrees forward of the vehicle rear
centerline.
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