Andrew 9.3-Meter ESA manual Step

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Step 6

Refer to Figure 34. Attach 300178 Subreflector Strut Brackets to 300174 Strut Assemblies.

Use 1/2 x 2-1/2 in (64 mm) galvanized bolts, 300022 backup plates, lock washers and nuts.

Note: All strut brackets should face counterclockwise as shown.

Figure 34

Assemble 300174 strut assemblies as shown.

Use 300176 angles and 1/2 x 2 in (51 mm) galvanized bolts, lock washers and nuts. Attach floating ring to corresponding strut brackets.

Use 1/2 x 2 in (51 mm) galvanized bolts, rectangular washers, flat washers, lock washers and nuts.

Securely tighten all strut assembly hardware.

Note: Apply stick wax to strut bracket and floating ring surface contact areas to ensure free movement during adjustment of subreflector.

Attach 202123B subreflector subassembly to floating ring. Ensure top subreflector sub- assembly adjustment stud, opposite of notch in subreflector subassembly, is positioned toward top of reflector assembly. Lift subreflector subassembly and insert 8 in (203 mm) subreflector studs into three mounting holes provided in floating ring. Install 3/4 in (19 mm) flat washer and two 3/4 in (19 mm) jam nuts stud as shown. Snug hardware.

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Contents Meter ESA Table of Contents Meter Earth Station Antenna IntroductionCustomer Service Center Proprietary Data Information and Assistance TechnicalOverview Content How to Use This ManualOverview Getting StartedRecommended Tools Tool Size QuantityGetting Started Returning Equipment Step Installation Procedures Overview Foundation PreparationTensioning Step 1b A-325 Tensioning For bolts over four diametersTripod Ground Mount Assembly Azimuth Beam Step Step Support Legs Assembly Step Step 20008A Step Panning Frame Assembly Step X 3 LG mm 200031A Flatwashers Azimuth Pivot Assembly 301786 Azimuth Jack Screw Assembly Step Step Step Elevation Jackscrew Assembly Step Step Grounding Cable Attachment Step Step Installation Procedures Step Jack Tripod Assembly Step Reflector Assembly Step Step Step Step Subreflector Assembly Step Step Theodolite Assembly Installation Step Step Theodolite Leveling Step Step Theodolite Centering Step Theodolite Height Adjustment Reflector Panel Adjustment Step Installation Procedures Subreflector Adjustment Step Subreflector Offset Tilt Adjustment Step Offset Operating Angle Top Stud Nut AdjustmentInstallation Procedures Step Overview Acquiring a Satellite OperationStep Polarization at 45 degrees from Optimum Setting Maximizing Odd Transponders Subreflector Adjustment Overview General Cleaning Electrical Parts Preventive MaintenancePreventive Maintenance Antenna Preventive Maintenance Drive System Voltage Current Checks Step Step Preventive Maintenance Jackscrews/Motors Gear Motor/Housing Fill Drain Requirements Lubrication Chart High-Speed Antenna Lubrication Points Medium-Speed Antenna Lubrication Points Appendix ‘A’ Appendix ‘B’