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|  MIL-T-50782(MU)
3.8.3.3 Gunner's aid counters.
3.8.3.3.1 Excursion range. - The gunner's aid counters shall have
a minimum of 50 mils excursion on the "L" and "R" scales.
3.8.3.3.2 Settings. - Setting 50 mils on the "L" scale shall decrease
the reset counter reading by 50 0.5 mils. Setting 50 mils on the "R"
scale shall increase the reset counter reading by 50 0.5 mils There
shall be no change in the azimuth counter readings when the 50 mils
values are set into the gunner's aid counters.
3.9 Operability. - The boresight adjustment shaft, rheostat knob,
azimuth counter door and latch, positioning of crank and positioning of
Knob 8587442 shall be operable at standard and extreme operating temper-
atures.
3.9.1 Torque. - The running torque required to operate the follow-
ing knobs shall be within the values specified for standard temperature
and shall not exceed the values specified for extreme operating
temperatures. The torque values for the azimuth knob shall be met with
Knob 8587442 indicating INDIRECT (out of detent).
-40 and +150F (Extreme
78 and 18 F (Standard
Operating Temperatures)
Knob
Temperature)
9 in. - lb.
Azimuth
2 to 6 in. - lbs.
60 in. -
OZS.
10 to 36 in. -
OZS.
Gunner's aid
46 in. -
OZS.
Reset Counter
10 to 36 in. -
OZS.
86 in. - 0zs.
Elevation
10 to 48 in. -
OZS.
3.9.2 Direct force. - The following operability requirements shall
be met with the force applied horizontally and in the direction of
movement.
3.9.2.1 Elbow assembly. - When checked at standard temperature, a
direct force of 2 to 7 pounds applied adjacent to the eyelens shall be
required to rotate the elbow assembly in each direction through the
full extent of travel. The force required at extreme operating temp
eratures shall not exceed 13 pounds.
3.9.2.2 Reset counter knob. - When checked at standard temperature,
a direct force of 7 to 12 pounds shall be required to push the reset
6
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