Andrew 7.3-METER EARTH STATION ANTENNA ES73 User Manual
Page 30
Reflector/
Subreflector/
Feed Assembly
Feed/Waveguide
Assembly
Step 1
Step 2
30
Installation Procedures
Type A-325 hardware is utilized during the reflector attachment to the ground mount.
Use of A-325 hardware eliminates slippage between mating surfaces under high loading
conditions as well as the need for future retightening. Refer to the A-325 tensioning pro-
cedure in preceding installation text. CAUTION: Adhere to any special instructions sten-
ciled on crate relative to crate opening, contents removal and/or personnel safety.
Pre-assemble corresponding back strut assembly pairs (16) as shown in Figure 36
using 1/2 x 1-1/2 (38 mm) bolts, 77956 strut spacers, lockwashers and nuts. Do not
tighten.
Figure 36
Remove drum assembly from crate. Lay drum assembly on its side on temporary sup-
ports as shown in Figure 37. Apply line of RTV sealant around feed opening.
Figure 37