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Andrew ES73 manual Reflector Backstructure Assembly Step, Installation Procedures, Figure Figure

Models: ES73

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Page 36

Image 36

Reflector/

Backstructure

Assembly

Step 1

Attach back strut assemblies to lower drum ring brackets as shown in Figures 43 and 44.

•Use 1/2 x 1-1/2 in (38 mm) bolts, lockwashers and nuts

Figure 43

Figure 44

36	Installation Procedures

Page 36

Image 36

Andrew ES73 manual Reflector Backstructure Assembly Step, Installation Procedures, Figure Figure

Contents

Type ES73 Installation, Operation and Maintenance7.3-MeterESA 7.3-MeterEarth Station AntennaTable of Contents Table of ContentsHow to Use This Manual Getting Started Installation Procedures Operation Preventive7.3-MeterEarth Station Antenna IntroductionIntroduction Customer Service Center Proprietary Data Information and AssistanceNotice Technical Assistance 24-hourTechnical AssistanceHow to Use This Manual Overview ContentHow to Use This Manual Getting Started Overview WarningsGetting Started Recommended Tools ToolSize QuantityParts Verification Reporting Equipment Loss or DamageReporting Visible Loss or Damage Reporting Concealed Damage Inventory Equipment ReceivedReturning Equipment Step Step Step Step Step Getting StartedInstallation Procedures Installation ProceduresOverview Foundation Preparation A-325Tensioning Step Step Step Step Step Step Use Felt Marker Before AfterTensioning Tensioning Installation ProceduresTripod Ground Mount Assembly Azimuth Beam Assembly Step Step StepInstallation Procedures Support Legs Assembly Step Step Installation Procedures•Use 7/8 x 2-1/4in 57 mm bolts and nuts Figure Step Step Installation ProceduresInstallation Procedures Step Step•Use 7/8 x 2-1/4in 57 mm bolts and nuts Panning Frame Assembly Step Installation ProceduresStep Installation Procedures•Use 7/8 x 2-1/4in 57 mm hardware Figure FigureInstallation Procedures Step StepFigure Installation Procedures Step Step•Use 7/8 x 2-1/4in 57 mm hardware Installation Procedures Step Step•Use 7/8 x 2-1/4in 57 mm hardware Installation Procedures Elevation Axis AssemblyStep FigureInstallation Procedures Step Step•Use 7/8 x 2-1/4in 57 mm bolt, flatwasher and nut Elevation Jackscrew Assembly Step Step Installation ProceduresInstallation Procedures Step StepFigure Azimuth Jackscrew Assembly Step Step Mount Assembly Step StepInstallation Procedures Installation Procedures Step StepFigure 201327A 201313AInstallation Procedures Step StepFigure 32A Figure 32B Step Step Step Installation ProceduresInstallation Procedures Step StepFigure 35A Reflector Subreflector Feed Assembly Feed/Waveguide Assembly Step StepInstallation Procedures Installation Procedures StepFigure Step Step 5 Step Installation ProceduresInstallation Procedures Step•Insert bolts from feed horn to mounting pipe FigureInstallation Procedures Step•Use 1/2 x 2 in 51 mm bolts, lockwashers and nuts Installation Procedures StepFigure Reflector Backstructure Assembly Step Installation ProceduresFigure Figure Installation Procedures Step Step StepFigure Installation Procedures FigureCenter portion of Andrew “flash” logo Installation Procedures Step•Use 1/2 x 1-1/2in 38 mm bolt, lockwasher and nut FigureInstallation Procedures StepFigure Figure Installation Procedures Step StepFigure FigureStep Step Step Step Step Step Installation ProceduresInstallation Procedures Step StepFigure Figure Subreflector Strut Assembly Step Installation ProceduresFigure Installation Procedures FigureInstallation Procedures StepFigure Figure Installation Procedures Step Step StepFigure Reflector to Ground Mount Assembly Step Step Installation ProceduresInstallation Procedures Figure FigureSubreflector Assembly and Adjustment Step Step Installation ProceduresInstallation Procedures Step StepFigure Cross-AxisGrounding Kit Step Installation ProceduresInstallation Procedures Step Step StepFigure Operation Overview Acquiring A SatelliteOperation The following steps provide the procedure for acquiring a satellite Step Step Step Step Step StepOperation Move the antenna in azimuth to obtain a null, then move ± in elevation to obtain a large peak signal. If not, move the antenna in the opposite azimuth direction through the peak and again move ± in elevation to obtain a large peak signal. If a larger peak is not found, you were on the main lobe Step Step StepOperation Figure 4-5:Optimum Polarization Setting StepOperation Figure 4-4:Maximizing Odd TranspondersSubreflector Adjustment OperationPreventive Maintenance Overview General Cleaning Electrical PartsPreventive Maintenance Mechanical Parts Inspection Local Control/Motor Drive ControllerPreventive Maintenance Antenna Preventive MaintenancePreventive Maintenance and minus direction from the local control/motor drive controller at least once every three months during antenna down time. Check the mechanical limit switches provided at the end points stop the antenna and feed movement, and limit travel to prevent struc- tural interference and damage. Check the mechanical limit switches for corrosion and water entry and the arm on each feed limit switch for free movement without binding. Be certain both feed rotation limit switch arms are not distorted and ride centrally on the actuating cam to open their corresponding limit switchDrive System Voltage and Current Checks Step Step Preventive MaintenanceStep Preventive Maintenance Turn the AZIMUTH EAST/WEST switch to either position and while the antenna is rotat- ing, carefully use a clamp on ammeter in accordance with the ammeter manufacturer’s instructions to take current readings off each of the three conductors phases connect- ed to the load side of the azimuth drive motor circuit breaker. Record the current draw in the equipment log and compare the readings to the reference values entered in the installation/acceptance check off. If the readings differ by more than five percent, refer to appropriate troubleshooting information and perform applicable corrective action. Then take voltage readings off each of the three conductors; the readings should agree with each other—withintwo percentStep Step Step Step Step Step Preservation of Component Parts Aluminum Parts Galvanized Surfaces LubricationPreventive Maintenance Jackscrews/Motors Gear Motor/Housing Fill Drain RequirementsPreventive Maintenance Lubrication Chart Preventive Maintenance5 9 10 6 7 8High-SpeedAntenna Lubrication Points Preventive MaintenanceMedium-SpeedAntenna Lubrication Points Preventive Maintenance5 9 10 6 7 8