2-5. CATEGORIES OF INSPECTION (CONT).
Table 2-1. INITIAL INSPECTION-M115 PANORAMIC TELESCOPE (CONT)
During level travel test, direction of head rotation
shall be reversed. Any vertical displacement of line
of sight with respect to horizontal target line resulting
from this reversing of travel shall not exceed 0.5 mil.
This test shall be performed at minimum of eight
800-mil deflection (azimuth) settings.
This test should be conducted at same time as level
travel test. While rotating deflection knob, backlash
in deflection counter must not exceed 1.0 mil, and
backlash in reset counter must not exceed 1.25 mil.
While viewing a calibrated wall target positioned 50
ft (15 m) from objective end of telescope, line of
sight through boresight mark of telescope reticle
shall be horizontal and parallel in deflection, with
respect to line of sight of open sight, within +10 mils.
NOTE: For the following evaluations apply 24 volt dc
power supply to electrical input circuits.
and markings of each counter to be clearly distin-
guishable when observed in darkened area.
When observed in darkened area with reticle LED
energized with 24 volts dc, reticle markings must be