ARMY TM 9-1290-262-24&P
MARINE CORPS TM 00476C-24&P
AIR FORCE TO 49A7-3-72/74
4-4. TEST AND ADJUSTMENT PROCEDURES (cont).
SETTING UP AZIMUTH TEST FIXTURE (cont)
5 Install collimating telescope holder (7) on
rod of universal surface gage (8).
6
Install collimating telescope (9) in collimat-
ing telescope holder (7). Place precision
level (10) on telescope holder (7). Level
telescope holder. Adjust collimating tele-
scope to a height of 6.8 in. (17.3 cm).
7
Place universal surface gage (8) with hold-
er and collimating telescope on azimuth
test fixture adapter (4).
8
Direct line-of-sight of collimating telescope
at plumb line (11). Loosen holder locking
screw (12) and rotate collimating telescope
until its vertical reticle line coincides with
plumb line along entire length. Tighten
holder locking screw (12).
9
Turn universal surface gage (8) until colli-
mating telescope line-of-sight is directed
toward the projector collimator (3). Raise
or lower and, if necessary, level projector
collimator level (13) to aline line-of-sight of
projector collimator (3) with collimating
telescope (9). Projector collimator reticle
must be plumb with collimating telescope
reticle.
10
If projector collimator reticle is not plumb
with telescope reticle, loosen collimator
holding screws (14) and rotate projector
collimator (3) until its vertical reticle is
plumb with telescope reticle. Tighten colli-
mator holding screws.
11
Remove universal surface gage (8) with
instaIled collimating telescope (9) from
azimuth test fixture.
12
Adjust collimator objective scale (15) to
indicate 50 yd (46 m).
13
Rotate azimuth ring (16) of azimuth test
fixture to zero.
4-18
