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|  MIL-T-50782(MU)
recorded reset counter reading must not exceed the limits of 3.8.2.3.
Repeat this procedure at the azimuth settings specified in 3.8.2.1
and also from the opposite direction. Insert 15 mils ddflection into
the azimuth fixture and insert 15 mils correction into the appropriate
-
correction counter. The reset counter shall reflect this 15 mil cor
rection. By means of the azimuth knob (panoramic telescope) return
the line of sight to the previously recorded point of coincidence and
observe the reset counter reading. This reading must coincide with
the fixture setting within the limits of 3.8.2.2. Repate this pro-
cedure at the azimuth settings specified in 3.8.2.2 and also using
the other correction counter.
4.7.2.2.3 Level travel. - This test may be performed in conjunction
with the azimuth test outlined in 4.7.2.2.2. The test is performed by
sighting through the panoramic telescope after a selected azimuth set-
ting has been inserted into the fixture and panoramic telescope, observe
coincidence between the telescope horizontal reticle line and the
horizontal target line near the optical axis. They must coincide with
the limits outlined in 3.8.2.4.
4.7.2.2.4 Lift. - This test may be performed in conjunction with
the backlash test outlined in 4.7.2.2.2. The test is performed after
returning the line of sight to the point of coincidence by observing
where the horizontal reticle line of the panoramic telescope falls
with respect to the previously established position (4.7.2.2.3). They
must coincide within the limits of 3.8.2.5.
4.7.2.2.5 Five mil click mechanism. - This test may be performed
by using visual and tactile inspection techniques. The result of this
inspection shall conform to the requirement outlined in 3.8.2.6 when
performed at the temperature specified.
4.7.2.2.6 Rapid traverse (reset counter). - This test is made by
assembling a testing mechanism capable of providing an RPM output
specified in 3.8.3.1 to the azimuth knob of the panoramic telescope
by means of an appropriate adapter. While being driven at the RPM for
the time specified, the reset counter shall follow the azimuth counter
as required in 3.8.3.1. At the end of the speed test, the reset counter
shall reset to 3200 mils as specified in 3.8.3.2.
4.7.2.2.7 Resolution. - This test may be performed after directing
the line of sight toward a target similar to that specified in MIL-O-
13830. The actual test is performed as outlined in MIL-O-13830.
Observe the definition pattern on the target. The patterns must be
resolved in the four meridians within the limits outlined in 3.7.6.
4.7.2.3 Elevation.
4.7.2.3.1 Elevation and plumb travel side play. - Return the Panoramic
telescope to the position outlined in 4.7.1. Scribe an index line on
15
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