Andrew ES73 manual Installation Procedures

Reflector/

Subreflector/

Feed Assembly

Feed/Waveguide Assembly

Step 1

Step 2

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

30 Installation Procedures