Andrew 9.3-Meter ESA manual Reflector Panel Adjustment Step

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Reflector Panel

Adjustment

Step 1

Step 2

Step 3

Step 4

Step 5

Step 6

Step 7

Step 8

Refer to Figure 40. Each panel segment has a scribe line, which defines the circumfer- ence of all corresponding screw locations at the number 17 position.

Adjust panel segment using cambolts on back struts to move the panel to the highest possible position. Using the theodolite, target the surface of each panel segment at scribe line 17. Record these measurements for each cam bolt (Refer to Table 3). Average these values.

Add the average value for the highest and lowest panel positions and divide by two. The result is the optimum theodolite elevation angle for scribe line 17.

After adjusting all panel segments at scribe line 17, tighten all segment hardware at seam screw locations 23 through 28.

Work clockwise, tightening 2 seam screw rows each time around the reflector (23-24, etc.)

Note: Do not step or lean in the area of reflector seam screw locations 23 through 31 during this tightening sequence.

Remove special brass rod holders and replace with panel segment hardware. Tighten all remaining seam hardware beginning with that corresponding to the circumference of panel segment screws 22. Work clockwise around the reflector tightening each row of corresponding panel segment screws down to the circumference of panel segment screws 1.

Note: Do not overtorque seam hardware.

Insert hardware in holes 29 - 31 in all panels and tighten three at a time in clockwise direction.

Note: Do not force the fasteners thru the holes by prying with a drift pin or hammering on them.

Connect and tighten 40 joiner strips with supplied hardware (refer to Figure 41) and sub- reflector bracket connection hardware. Double-check for loose strut connection and panel connection hardware.

Figure 40

Figure 41

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Installation Procedures

Image 43
Contents Meter ESA Table of Contents Introduction Meter Earth Station AntennaProprietary Data Information and Assistance Technical Customer Service CenterHow to Use This Manual Overview ContentGetting Started OverviewTool Size Quantity Recommended ToolsGetting Started Returning Equipment Step Overview Foundation Preparation Installation Procedures1b A-325 Tensioning For bolts over four diameters Tensioning StepTripod 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 Offset Operating Angle Top Stud Nut Adjustment Subreflector Offset Tilt Adjustment StepInstallation Procedures Step Operation Overview Acquiring a SatelliteStep Polarization at 45 degrees from Optimum Setting Maximizing Odd Transponders Subreflector Adjustment Preventive Maintenance Overview General Cleaning Electrical PartsPreventive 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’