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|  MIL-G-45981(WC)
4.6.24 Sustained use test. The weapon system shall be tested for
compliance with 3.3.22. Degradation in excess of the specified, or
other indications of excessive power loss in the weapon system, shall
be cause for rejection.
4.6.25 Low voltage warning indicator and interrupting circuit test.
The weapon system shall be tested to determine compliance with 3.3.23.
4.6.26 LOW voltage test/override switch test. The weapon system
shall be tested to determine compliance with 3.3.24.
4.6.27 Tracking rate test. The weapon system shall be tested to
determine compliance with 3.3.25.
4.6.28 Boresighting test. The weapon system shall be subjected to
the following boresighting procedure to determine compliance with 3.3.26:
Check that the GUN POWER switch is OFF.
a.
Set the SYSTEM POWER switch to the ON position and set
b.
MODE switch to the RADAR position.
Check that the gun is clear. To clear gun, position the
c.
BRAKE-CLEAR AND BRAKE switch in the CLEAR AND BRAKE
position and rotate the barrels two complete revolutions.
Remove any rounds in the case chute.
Time the gun in the No. 1 firing position. Hold the BRAKE-
d.
CLEAR AND BRAKE switch in the CLEAR AND BRAKE position,
depress the gun index pin, and locate the No. 1 barrel
(marked on the muzzle clamp) in the firing position which
is at the 4 o'clock position when viewed from the muzzle end.
Release the BRAKE-CLEAR AND BRAKE switch and index pin.
Check that the index pin has returned to normal.
Unstow the radar antenna, if stowed. Set MAINT switch to
e.
OFF, set the MODE switch to NORMAL, and depress either action
switch until the antenna drives out of stow and is positioned
on the gun axis. Set MAINT switch to ON.
If the radar antenna was unstowed, check to see that the
f.
MODE switch is set to NORMAL and the MAINT switch is ON.
Select a distant aiming point (at least 2500 meters away)
g.
and depress an action switch and train the gun to the
approximate position for boresighting.
Pull out the shift pin handle on the drum drive assembly
h.
and shift to N position. This places the drum drive in
neutral. It also interrupts electrical circuits to prevent
the elevation, traversing and firing of the gun.
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