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Andrew ES73 manual Step Step, Installation Procedures, Figure

Models: ES73

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Step 3

Step 4

Adjust subreflector hardware to obtain appropriate setting from surface of reflector at seam bolt ring #1 to bottom of subreflector rim in a radial plane as shown in Figure 67. Securely tighten adjustment hardware.

Figure 67

Repeat the adjustment procedure performed in Step 2, until all areas of the subreflector are uniform. Adjust the jam nuts, and securely tighten the adjustment hardware.

51	Installation Procedures

Image 51

Andrew ES73 manual Step Step, Installation Procedures, Figure

Contents

7.3-MeterEarth Station Antenna Type ES73Installation, Operation and Maintenance 7.3-MeterESAInstallation Procedures Operation Preventive Table of ContentsTable of Contents How to Use This Manual Getting Started7.3-MeterEarth Station Antenna IntroductionIntroduction 24-hourTechnical Assistance Customer Service CenterProprietary Data Information and Assistance Notice Technical AssistanceHow to Use This Manual Overview ContentHow to Use This Manual Getting Started Overview WarningsGetting Started Quantity Recommended ToolsTool SizeConcealed Damage Inventory Equipment Received Parts VerificationReporting Equipment Loss or Damage Reporting Visible Loss or Damage ReportingGetting Started Returning Equipment Step Step Step Step StepInstallation Procedures Installation ProceduresOverview Foundation Preparation Installation Procedures A-325Tensioning Step Step Step Step Step StepUse Felt Marker Before After Tensioning TensioningTripod 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 Installation Procedures Step StepInstallation Procedures Step Step•Use 7/8 x 2-1/4in 57 mm bolts and nuts Installation Procedures Panning Frame Assembly StepFigure Figure StepInstallation Procedures •Use 7/8 x 2-1/4in 57 mm hardwareInstallation 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 Figure Installation ProceduresElevation Axis Assembly StepInstallation Procedures Step Step•Use 7/8 x 2-1/4in 57 mm bolt, flatwasher and nut Installation Procedures Elevation Jackscrew Assembly Step StepInstallation Procedures Step StepFigure Azimuth Jackscrew Assembly Step Step Mount Assembly Step StepInstallation Procedures 201327A 201313A Installation ProceduresStep Step FigureInstallation Procedures Step StepFigure 32A Figure 32B Installation Procedures Step Step StepInstallation Procedures Step StepFigure 35A Reflector Subreflector Feed Assembly Feed/Waveguide Assembly Step StepInstallation Procedures Installation Procedures StepFigure Installation Procedures Step Step 5 StepFigure Installation ProceduresStep •Insert bolts from feed horn to mounting pipeInstallation 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 Figure Installation ProceduresStep •Use 1/2 x 1-1/2in 38 mm bolt, lockwasher and nutInstallation Procedures StepFigure Figure Figure Installation ProceduresStep Step FigureInstallation Procedures Step Step Step Step Step StepInstallation Procedures Step StepFigure Figure Subreflector Strut Assembly Step Installation ProceduresFigure Figure Installation ProceduresInstallation Procedures StepFigure Figure Installation Procedures Step Step StepFigure Installation Procedures Reflector to Ground Mount Assembly Step StepFigure Figure Installation ProceduresInstallation Procedures Subreflector Assembly and Adjustment Step StepInstallation Procedures Step StepFigure Installation Procedures Cross-AxisGrounding Kit StepInstallation 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 4-4:Maximizing Odd Transponders Figure 4-5:Optimum Polarization SettingStep OperationOperation Subreflector AdjustmentPreventive Maintenance Overview General Cleaning Electrical PartsPreventive Maintenance Mechanical Parts Inspection Local Control/Motor Drive ControllerPreventive Maintenance Preventive Maintenance Antennaand 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 switch Preventive MaintenanceDrive 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 Preventive Maintenance Lubrication ChartPreventive Maintenance 5 9 106 7 8 High-SpeedAntenna Lubrication Points6 7 8 Medium-SpeedAntenna Lubrication PointsPreventive Maintenance 5 9 10