Rotating Tube Assembly - Andrew 4.9-Meter ESA Operating And Maintenance

Rotating Tube
Assembly
Step 1
Step 2
Step 3
Reference Drawing 240272
302356
Rotating Tube
Assembly
302649
3/8 x 1-3/4" Bolt (9963-146),
Note: Applicable feed installation drawings are included with each feed system.
Install 302356 Rotating Tube Assembly as shown in Figure 10. Ensure 302507 Support
Struts attach to ribs 2, 5, 8 and 11 as shown. Note: Ensure all support struts are
attached to same side of reflector rib and rotating tube mounting tab. Fully tighten mount-
ing hardware except for 3 bolts that attach polarization drive as shown in Figure 11.
Upon completion of the installation of the feed rotating tube assembly, install reflector
panel #6 as described in Step 6 on page 17.
Tighten reflector panel seam hardware in concentric circles in a clockwise direction
beginning with inner hardware and progressively working outward.
Hub
Install Reflector
Panel 6
Flat Washer (9997-146),
Lock Washer (9974-63)
and Nut (9999-60)
302507
Rotating Tube
Support Strut
302511
Rib
Figure 10
20

Rotating Tube Assembly

3/8"
Lock Washer
(9974-63)
Rib or Rotating Tube
302507
Rotating Tube
Support Strut
1/2" ID x 1" OD
Flat Washer
(9997-65)
1/2 x 1/2"
Shoulder Bolt
(9858-19)
Installation Procedures
302356
302507
Rotating Tube
Support Strut
3/8"
Hex Nut
(9999-60)
3/8"
Flat Washer
(9997-145)