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|  MIL-T-60895(MU)
reset counter shall reflect this 15 mil correction. 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.
Repeat this procedure 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 setting
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. After subjecting the panoramic telescope to the RPM
for the time specified, the reset counter and the azimuth counter shall
follow as required in 3.8.3.1 and the reset counter shall reset to 3200
mils at the end of the speed test 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. - Return the panoramic telescope
to the position outlined in 4.7.1. Scribe an index line on the elevation
knob in line with another index scribed on Housing 7660588. Perform these
tests by rotating the azimuth fixture plate to direct the panoramic telescopes
optical axis toward a plumb line located to one side of the fixture and
coincide the center vertical reticle line to the plumb line Position the
vertical target line in coincidence with the plumb and vertical reticle
14.
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