TM 11-5840-281-12-1
4-10.
AZIMUTH ANTENNA ASSEMBLY. (CONT)
CAUTION
Incorrect alinement of azimuth horn and polarizer with azimuth horn and polarizer support can cause
Review and become familiar with steps 2 through 9 before assembling azimuth horn and polarizer on
azimuth horn and polarizer support.
2.
Observe four alinement dimples (7) on machined surface of azimuth horn and polarizer (8).
3.
Remove two alinement pins (9) from one side of azimuth horn and polarizer (8).
4.
On opposite side of azimuth horn and polarizer (8), loosen two alinement pins (9) as far as possible without
removing them.
5.
Assemble azimuth horn and polarizer (8) on azimuth horn and polarizer support (5) and hand tighten alinement
pins (9) loosened in step 4.
6.
Adjust azimuth horn and polarizer (8) so alinement holes (10) and dimples (7) are in alinement and loosely install
four hex screws (11), lockwashers (12), and flat washers (13).
7.
Ensure correct positioning of azimuth horn and polarizer (8) by siting through two open alinement screw holes on
azimuth horn and polarizer support (5) and verifying they are alined with their respective alinement holes (10) on
the azimuth horn and polarizer (8).
8.
Carefully tighten four hex screws (11), making sure depth of alinement pins (9) does not prevent flush mounting
of azimuth horn and polarizer support (5) with machined surfaces of azimuth horn and polarizer (8).
9.
Install and hand tighten two alinement pins (9) removed in step 3.
CAUTION
Do not put excessive weight on azimuth horn and polarizer assembly. Damage to one or both could
result.
10.
Attach cable (14) to azimuth horn and polarizer support (5) with clamp (15).
4-25
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