TM 5-1260-206-12
Table 2-3.
Initial Adjustments and Daily Checks - Continued
STEP ITEM
NO.
PROCEDURE
6
Tighten small mirror adjust screws (1) and (2) until stops are
reached.
Locate measuring mark dots in left and right image areas by doing
7
t h e following:
a.
Draw a centering guide on a piece of calculator paper.
Place
guide under center of left measuring mark.
Rotate stereoscope adjust (5) until centering guide is centered
b.
in image area. Focus on measuring mark dot.
Loosen left large mirror locking screw (3).
c.
Rotate left large mirror (4) until centering guide is near
d.
center of left image area.
Tighten left mirror locking screw.
e.
Place centering guide under center of right measuring mark.
f.
Loosen right large mirror locking screw (6).
g.
Rotate right large mirror (7) until centering mark is near
h.
center of right image area.
i.
Tighten right mirror locking screw.
Unscrew right small mirror adjust until centering guide is
j.
centered in image area.
Check that measuring mark dots are
centered in left and right image
areas. If adjustment is needed,
rotate large mirrors or small mirror
adjust screws as required to center
dots.
Look through both monocular. Check
that measuring mark dots appear to
merge in center of image area. If
adjustment is needed, rotate large
mirrors or small mirror adjust
screws as required to merge dots.
2-37
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