Andrew 7.3-METER EARTH STATION ANTENNA ES73 - Manual (Page 47)

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Installation Procedures
Attach subreflector ring to corresponding strut assembly plates as shown in Figure 60.
Ensure subreflector ring assembly is installed with indicated adjustment stud hole at 3
o’clock position as shown. Do not tighten mounting hardware.
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Use 1/2 x 1-1/4 in (32 mm) holts, flatwashers, lockwashers and nuts
Figure 60
Fully tighten quadrapod plates to reflector segments, struts to quadrapod plates, struts
to apex bracket, subreflector ring to strut assembly plates.
Screw 3/4 x 9 in (229 mm) adjustment studs into mounting holes on subreflector as
shown in Figure 61. Install 3/4 in flatwashers, nuts and jam nut onto stud.
Figure 61