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Andrew ES73 User's Manual

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1. Installation Provides the procedures for the different phases of a 7 3 Meter Earth Procedures Station Antenna base installation This section will help you easily find requirements for an individual task as well as displays the sequence for each task execution Operation Describes the controls functions and general operating procedures required for proper operation of the 7 3 Meter Andrew Earth Station Antenna Preventive Describes preventive maintenance procedures that are required to Maintenance maintain proper functional operation of your new Andrew Earth Station Antenna 5 How to Use This Manual Getting Started Overview Warnings The installation operation and maintenance of the 7 3 Meter Earth Station Antenna requires qualified and experienced personnel Andrew installation operation and main tenance instructions are illustrated for such personnel Additionally the antenna should be inspected by qualified personnel to verify proper installation maintenance and con dition of equipment as described in Preventive Maintenance The basic equipment and accessories are either manufactured or design controlled by Andrew Corporation The prerequisite information necessary for the 7 3 Meter Earth Station Antenna can be found in this section Furthermore this section should be reviewed BEFORE performing the installation operation or maintenance Recommended warnings recommended tools and the antenna parts can be ver
2. 100 2nd Side Lobe Peak a Axis ast AZIMUTH AXIS EAST Figure 4 2 Antenna Radiation Pattern Topographical Diagram with Plan View 55 Operation Step 7 Step 8 Step 9 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 NOTE The following explanation for polarization adjustment addresses the special case of full transponder signals Some applications may include partial transponder signals If your antenna is equipped with a linear polarizer the antenna is aligned in azimuth and elevation signal maximized and 24 transponder signals 12 horizontal and 12 vertical are noted the polarization adjustment is set incorrectly and must be modified If 12 transponder signals are noted they may or may not be the properly polarized signals Therefore 24 transponder signals must be visually noted in order to determine the prop er polarization setting Rotate the feed assembly clockwise until 24 transponder signals are noted and of approximately equal amplitude NOTE It is more accurate and visually easier to minimize the alternate set of transpon der signals rather than maximizing the transponder of interest ATTEN 10d8 RL 10 OSBm CENTER 3 SSDOGHZ SPAN 510 OMH RBW 1
3. 46 Installation Procedures Step 3 Attach subreflector ring to corresponding strut assembly plates as shown in Figure 60 Ensure subreflector ring assembly is installed with indicated adjustment stud hole at 3 o clock position as shown Do not tighten mounting hardware Use 1 2 x 1 1 4 in 32 mm holts flatwashers lockwashers and nuts Subreflector Ring Weld Line Strut Assembly 1 2 x 1 1 4 32 mm 9963 103 Bolts Adjustment 9997 28 Flat Washers Stud Mounting 9974 64 Lock Washers Holes and 9999 61 Nuts Adjustment Stud at 3 O clock Position Subreflector Ring Strut Assembly Figure 60 Step 4 Fully tighten quadrapod plates to reflector segments struts to quadrapod plates struts to apex bracket subreflector ring to strut assembly plates Step 5 Screw 3 4 x 9 in 229 mm adjustment studs into mounting holes on subreflector as shown in Figure 61 Install 3 4 in flatwashers nuts and jam nut onto stud Figure 61 47 Installation Procedures Reflector to Ground Mount Assembly Step 1 Step 2 NDREW Attach 5 8 in 16 mm shackles to three lifting tabs as shown in Figure 62 Attach 15 ft 4 5 m tag lines to opposing quadrapod plates Attach to Lifting Tab Lifting d 5 8 16 mm Tab ii Shackle Typ 3 places 3 20 6m Chokers Top View Drum Assembly Figure 62 Raise reflector backstructure assembly and align with corresponding mounting holes in drum and elevation axis
4. AS lt gt AZM AZIMUTH DIRECTION OF MOUNT 88 0 2235 mm Figure 2 10 Installation Procedures A 325 Tensioning Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 During the installation process there are several references to the A 325 hardware ten sioning procedure The A 325 hardware must be properly tensioned to avoid slippage between bolted surfaces under high loads Slippage can cause the corresponding assembly to move causing antenna misalignment When designated the A 325 hard ware should be tightened according to the following tensioning procedure NOTE Tensioned bolts are for final connections only and should not be loosened for reuse Lubricate the bolt threads with the provided stick wax to reduce friction Insert the bolt and add a flat washer if required Do not allow wax under the flat washer Add the nut and finger tighten After the connections are complete tighten the bolts until the surfaces are joined and the nuts are snug for example full effort of a person using an ordinary spud wrench Do not proceed with Steps 5 and 6 unless the connection is final and is not intended to be loosened again Note If the bolts are loosened after Steps 5 and 6 discard and replace with new hard ware Using a felt tip marker mark the nuts and the ends of the bolts with a straight line as shown in Figure 3 1a and Figure 3 1b Tighten the nuts further with an extra long wrench until the nuts are mov
5. Segment Reflector a Segment s Tee Section Drum Assembly 1 2 x 1 1 2 38 mm 77955 Bolt 9974 64 Lock Washer and 9999 61 Nut 7 ft 2x4 Panel 1 9 Temporary Support 11 Back Strut Assembly Figure 48 39 Installation Procedures Step 6 Repeat Steps 4 and 5 to install second panel adjacent to panel segment 1 as shown in Figures 49 Install panel seam hardware connecting panel segments 1 and 2 with step ladder Do not tighten Use 5 16 x 3 4 in 19 mm special bolts 3 8 in flatwasher 5 16 in lockwasher and 5 16 in nut as shown in Figure 50 Important Do not step on panel surface when installing panel seam hardware Apply force only on panel seam Figure 49 3 8 44 mm 9997 89 Fiat Washer 5 16 19 mm 9974 17 Lock Washer 5 16 19 mm 9999 59 Nut Figure 50 40 Installation Procedures Step 7 Install third panel segment adjacent to first panel segment according to Steps 4 thru 6 and Figure 51 Figure 51 Step 8 Continue installing panel segments as described in Steps 4 thru 7 in counter clockwise direction as shown in Figure 52 Note Panels are numbered and should be installed in proper sequence Note Ensure that 9 ft supports are used at every other panel segment Figure 52 41 Installation Procedures Step 9 Step 10 Step 11 Step 12 Step 13 Step 14 Prior to installing panels 15 and 16 station a man on top of the drum assembl
6. components in order to maintain a weatherproof condition If the enclosure is provided with a vent fan check for free operation of the fan blade The fan bearings are permanently lubricated any binding abnormal noise or vibration necessi tates replacement of he fan assembly Check and replace the fan filter element if it appears dirty or obstructed with dust Visually inspect all mechanical parts for freedom of operation with no misalignment binding or interference Check all cabling for sufficient slack to prevent cable strain as well as adequate restraint to prevent abrasion or chaffing during antenna and feed movement Check security of antenna mounting and interconnecting assembly hardware Be cer 62 Preventive Maintenance Drive System Voltage and Current Checks Step 1 Step 2 Step 3 tain all electrical grounding connections including cross axis grounding straps are intact and secure not corroded or broken Thoroughly clean any noticeable corroded portions of grounding cables unplated portion of universal terminals and corresponding mounting surfaces using a wire brush Replace rather than tighten any loose A 325 structural hardware The hardware distorts at initial installation and once loosened will not maintain the required high strength friction connection All other assembly and instal lation hardware should be tightened to its original torqued condition When installing new structural hardware do not use a
7. of the main lobe C band feeds Adjustment screws are 3 4 X 10 Move 1 turn per 1dB of imbalance Ku band feeds Adjustment screws are 1 4 X 20 Move 1 turn per 1 dB of imbalance All adjustments should be continued until the desired pattern is achieved Upon completion the antenna should be properly aligned with the satellite for maximum performance 58 Operation Preventive Maintenance Overview General Cleaning Electrical Parts This section contains periodic preventive maintenance instructions for the 7 3 Meter Earth Station Antenna Included in this section are inspection and preventive mainte nance procedures including cleaning and lubrication painting and an operational volt age current checkout procedure deemed within the capabilities of the average station technician Refer to applicable vendor manuals for any repair procedures not included in this section yet designated as capable off being performed in the field rather than requiring specialized facilities tools and or test equipment as well as technically trained personnel An operational checkout procedure provides an accurate indication of the overall earth station performance and should be performed at intervals of approximately three months This procedure is essentially performed during the various modes of normal operation of the earth station In addition the operational checkout procedure should be performed after any repairs or adjustments have been mad
8. 6 16 x 1 3 4 INSTALLED AFTER REFLECTOR TO GROUND 44 mm MOUNT INSTALLATION BOLT FLATWASHER AND NUT 46373 GROUNDING 5 16 x 1 25 mm BOLT FLATWASHER AND NUT 7 8 x 2 1 4 57 mm BOLT AND NUT 201487 PANNING FRAME TRIPOD ASSEMBLY Figure 69 53 Installation Procedures Operation Overview After you have completed the assembly of your antenna you are now ready to become operational In order to operate the earth station antenna you will need to direct it to the desired satellite adjusting both the elevation and azimuth angles appropriately The fol lowing procedures provide details on how to correctly position your antenna on the desired satellite Acquiring A There are several procedures that may be used to properly acquire the satellite Andrew Satellite recommends that a spectrum analyzer be used The following procedures provide explanation as to how to use the spectrum analyzer While viewing the spectrum analyzer screen a signal as shown in Figure 4 1 will proba bly be observed Additionally some transponder signals may be observed above the noise signal as shown ATTEN 1008 RL 10 Odam CENTER 3 SS00OGH SPAN 510 OMHz RBW 1 OMHzx VBwWw 3 DMHz Swe SO Ome Figure 4 1 Minimum transponder Signal on Spectrum Analyzer ANDREW 54 Operation Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 The following steps provide the procedure for acquiring a satellite Begi
9. Installation Operation and Maintenance gt Type ES73 7 3 Meter ESA ANDREW 7 3 Meter Earth Station Antenna Andrew Corporation Telephone 708 349 3300 Customer Service 24 hours U S A Canada Mexico 1 800 255 1479 10500 West 153rd Street FAX U S A 1 800 349 5444 U K 0800 250055 Republic of Ireland 1 800 535358 oO Orland Park IL U S A 60462 Internet http www andrew com Other Europe 44 1592 782612 eee Copyright 2005 by Andrew Corporation Table of Contents Introduction How to Use This Manual Getting Started Installation Procedures Operation Preventive Maintenance ANDREW Introduction eieae NN AR 3 Proprietary Data ci A gn hee SG a oda 4 Information and ASSIS aNCe ooooococccccc een eee eee eee 4 Notice AA ERA 4 Technical ASSISTANCE cocoa ici ri A a odode Dida nee Eas 4 OVEIVICW ii IA ARA AREA AAA AAA REA A A A 5 Cotto Ds en A AT AR a iaa 5 OVGIVIOW boa ad e ta ER AAA AA A be ee ee gs ES 6 Warnings 20 eae eae A a a N al ele 6 Recommended Tools ninss Ternen iora aieeaa eee eee EA E 7 Parts VerifiCatiOn sic isi yenen aa el wa A a a a A a e a dia 8 Reporting Equipment Loss or Damage oooccccncncrnnn 8 Reporting Visible Loss or DaMage lt ooooooccccccrrararananananaaaa 8 Reporting Concealed Damage o oooocccccconann eee eee 8 Inventory Equipment Received oooooooooccccccccanan eens 8 Returning Equipment 20 ii A A A e eo E 9 OVA A
10. Loctite to threads to act as locking nut 301772 Tripod Tube Weldment Figure 28 24 Installation Procedures Azimuth Jackscrew Assembly Step 1 Step 2 Mount Assembly Step 1 Step 2 ANDREW Insert 221923 223180 azimuth jackscrew tube into 221738 azimuth pivot assembly as shown in Figure 29 Insert jack carefully to prevent scratching jackscrew tube Note Ensure jackscrew assembly remains fully retracted at this time 7 8 x 2 3 4 70 mm BOLTS AND NUTS FLAT WASHERS 221923 223180 AZIMUTH AZIMUTH PIVO JACK SCREW ASSEMBLY Figure 29 Apply RTV to flange surface as shown in Figure 29 Fasten jack to pivot using 7 8 x 2 3 4 in 70 mm bolts and nuts Mounting hardware is included with corresponding jack assembly hardware kit Attach shackles to beam assembly as shown in Figure 30 Shackles 200088A Joint Assembly Figure 30 Lift support legs to azimuth beam assembly 25 Installation Procedures Step 3 Attach rear pad assemblies to rear foundation pads as pictured in Figure 31 7 8 x 2 1 4 57 mm Y BOLTS AND NUTS y 201327A E JOINT ASSEMBLY 201313A BEAM ASSEMBLY 1 8 FLATWASHERS 7 8 x 2 1 4 57 mm 201314 BOLTS AND NUTS SUPPORTS 201408 BEAM ASSEMBLY 201315 SUPPORTS 201301 REAR REAR PAD ASSEMBLY FOUNDATION Figure 31 Step 4 Connect beam assembly using 7 8 x 2 1 4 in 57 mm hardware Tighten supports to beam assembly per A 325 tensioning procedure 26 I
11. OMHz VGW 23 DMHz SWP SO Ome Figure 4 3 Polarization at 45 degrees from Optimum Setting 56 Operation Step 10 With all 24 transponder signals of approximately equal amplitude appearing on the spectrum analyzer screen determine the specific antenna system and satellite parame ters Rotate the feed assembly as required until the appropriate odd or even transpon der signals are maximized ATTEN 10065 RL 10 OgBm CENTER 3 SS00GH SPAN 510 DMHz RBW 1 OmHz VEw 3 OMHz SWP S50 Oms ATTEN 1096 RL 10 OdBm CENTER 2 SSO00GH SPAN 510 OMhHz RBW 1 OMH VvBw 3 OMH SwP SO Ome Figure 4 5 Optimum Polarization Setting 57 Operation Subreflector Adjustment After the satellite has been acquired and testing has taken place with the spectrum analyzer the subreflector may need to be adjusted to maximize optimum performance of your anten na The following procedures should be followed if a subreflector adjustment is required to maximize optimum performance NOTE All INTELSAT Type Approved antennas do not require subreflector adjustment Before proceeding azimuth and elevation patterns should be conducted to determine the adjustments that need to be made The goal is to achieve a high peak on the main lobe and even distances between the main lobe and sidelobes NOTE No adjustments should be made in the receive band If your pattern dictates a need to adjust the azimuth angle the left sidelobe re
12. aad AA A DOR de ARA ce wean 10 Foundation Preparation ooo a A OEE a 10 A 325 Tensiloning a ANS A A A A A A EE e id 11 Tripod Ground Mount Assembly oooccccccncan eee 12 Azimuth Beam ASSeMbly oooooooooror eee 12 Support Legs Assembly iad ia a a eRe hte jaa de 13 Panning Frame Assembly os rarena ccc eee 16 Elevation Jackscrew Assembly 2 2 0 0 c ccs 23 Azimuth Jackscrew Assembly 0000 ce eee eens 25 Mount Assembly Li REA A A A been dee EE 25 Reflector Subreflector Feed Assembly ooooooocccccnana 30 Feed Waveguide ASSeMbly oooooooomomorc 30 Reflector Backstructure Assembly o ooooccccccnan nanan 36 Subreflector Strut Assembly oooooccccccnnnn ne eee 44 Reflector to Ground Mount Assembly 00 000 c cece ee 48 Subreflector Assembly and Adjustment 0 000 c cece eee 50 Cross Axis Grounding Kit eine ee eile ae a hen ee eda a sie da bee a eee 52 OVGIVICW ia a Ad a De a oad Pe a eek Pum a aad aya A tye Paha ba Nala a are serene 54 Acquiring A Satellite a ee ea ee Ba 54 Subreflector Adjustment rrn eies aia A Beeson Sa ee a 58 OVER E A deals Ria arden A a Wie lala A AA a A Gillean 59 General Cleaning 2 tt A ii e tas Poke dele ie A a di 59 EleCtriCal Parts g enalia Ia a a er bcd AA Ea a A A dC ada a 59 Mechanical Parts cocoa ii ARA ERAN RADAR DAA ED AAA RA ER EA 60 INSPECTION 0 A A A aod de A pare A A eee Aes ta 60 Local Control Motor Drive Controller oooooococcccc
13. ackscrew assembly is dependent upon azimuth range requirements and corre sponds with mounting position of 201488 outrigger plate or extension assembly 28 Installation Procedures Step 10 Step 11 Extend jackscrew to meet outrigger assembly Loosely attach outrigger plate to pin assembly in azimuth jackscrew as shown in Figure 35A Note Realignment of panning frame pivot assembly may be necessary to ensure proper alignment of azimuth jackscrew pin Snug panning frame pivot assembly hardware and fully extend azimuth jackscrew to ensure binding does not occur throughout entire azimuth pivot range 7 8 x2 1 4 1 1 2 38 mm HEX NUT 57 mm a BOLTS FLATWASHERS AND NUTS 201488 OUTRIGGER ASSEMBLY PIN 221923 223180 ASSEMBLY AZIMUTH JACK SCREW 1 x 2 1 2 63 mm Ho BOLTS AND NUTS 221738 AZIMUTH PIVOT ASSEMBLY PANNING FRAME ASSEMBLY 201273 JOINT ASSEMBLY Figure 35A Refer to Figures 35A 35B Loosen both setscrews in upper and lower collars of pin assembly at end of azimuth jack Do not retighten these collars Apply supplied Loctite to pin threads and nuts Attach 1 1 2 in 38 mm hex nuts to top and bottom of azimuth jackscrew pin assembly and securely tighten mounting hardware using 6 foot 1 8 m lever arm Tighten outrigger plate hardware Upper and Lower Collars Figure 35B The tripod ground mount assembly is now completed with the necessary operational essentials All ground mount options ha
14. and polarization will be powered to rotate the antenna and feed in both directions of travel Check that this condition can be tolerated from a safety as well as an operational stand point and that the electrical limits are not reached before the testing is concluded Reaching an electrical limit before concluding a test necessitates rotating the antenna or feed in the opposite direction a sufficient distance to permit retesting in the desired direction Turn the FEED CCW CW switch to either the CW or CCW position and while the feed is rotating carefully use a clamp on ammeter in accordance with the ammeter manufactur er s instructions to take current readings off each of the three conductors phases con nected to the load side of the polarization 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 within two percent Repeat preceding step 3 with the FEED CCW OFF CW switch in the alternate operat ing position 63 Preventive Maintenance Step 4 Step 5 Step 6 Step 7 Step 8 Step 9 Turn the AZIMUTH EAST WEST switch to either position and while the antenna is rotat ing ca
15. assemblies using tag lines for proper guidance as shown in Figure 63 Attach rear of drum assembly to elevation axis assembly using 300037 spac ers 3 4 x 4 in 102 mm bolt and nut assemblies and flat washers Align mounting holes and attach forward leg of jack tripod to forward portion of drum assembly using 5 8 x 3 in 76 mm bolt and nut assembly clipped washers and cast spacer as shown in Figure 64 Securely tighten mounting hardware per A 325 Tensioning Procedure Note Required mounting hardware is included as part of reflector backstructure hardware kit 300033 48 Installation Procedures Figure 63 0 625 11UNCx3 00LG A 325 BOLT amp NUT ASSEMBLY CLIPPED WASHER BEVEL WASHER A 325 CAST SPACER FLAT WASHER BACKING PLATE HEX NUT cE ELEVATION AXIS ASSEMBLY MN 0 75 10UNCx4 00 LG A 325 BOLT amp NUT ASSEMBLY ENCLOSURE CHANNEL WELDMENT BACKING PLATE ENCLOSURE BACK SKIN 300037 SPACER ENCLOSURE SIDE ELEVATION AxIS ASSEMBLY A 325 SL FLATWASHER HEX NUT Figure 64 NDREW 49 Installation Procedures Subreflector Assembly and Adjustment Step 1 Install subreflector subassembly to subreflector ring by inserting studs on subassembly into adjustment stud mounting holes as shown in Figure 65 Use 3 4 in 19 mm flatwasher nut and jam nut 3 4 x 9 229 mm Stud Subreflector gt 3 4 19 mm a 5 Flat Washer Nut z Y f 127 mm and Jam Nut 3 4 19 mm SUT mne Flat Wa
16. atwasher and nut Insert bolts from channel leg to joint bracket 300026 Tripod Channel Legs gt 301741 301742 Tripod Joint Brackets y gt Figure 23 Attach 301772 tripod tube weldment to 300026 tripod channel legs as shown in Figure 24 Use 7 8 x 2 1 4 in 57 mm bolt flatwasher and nut Insert bolt from channel leg to tube weldment 301772 Tripod Tube Weldment y 300026 i Tripod Channel Legs A gt Figure 24 22 Installation Procedures Elevation Jackscrew Assembly Step 1 Attach 301771 301736 elevation jackscrew assembly to 201596 mounting plates as shown in Figure 25 Tighten connection Use 7 8 x 2 1 2 bolts and nuts Figure 25 Step 2 Loosen rubber boot from end of jackscrew Turn elevation drive screw to extend jack to dimension 67 7 in 1719 mm as shown in Figure 26 Apply grease to screw shaft Reattach rubber boot I i Figure 26 23 Installation Procedures Step 3 Prop 301771 301736 elevation jackscrew up to align with 301772 tripod tube weldment as shown in Figure 27 301 771 301736 Elevation Jackscrew Figure 27 j Step 4 Attach 301771 301736 elevation jackscrew to 301772 tripod tube weldment as shown in Figure 28 Use 7 8 x 5 1 4 133 mm bolt Fasten with heavy hex nut and flatwasher according to A 325 procedure with the exception of tightening the nut 1 2 turn from snug condition Tighten jam nut in accordance with A 325 procedure Apply supplied
17. aused to the equipment during the shipping process a claim should be filed with the carrier Follow the Reporting Visible Loss or Damage or Reporting Concealed Damage procedures when filing a claim with the carrier Make a note of any loss or evidence of external damage on the freight bill or receipt and have it signed by the carrier s agent Failure to adequately describe such external evidence of loss or damage may result in the carrier refusing to honor a damage claim The form required to file such a claim will be supplied by the carrier Concealed damage means damage which does not become apparent until the unit has been unpacked The contents may be damaged in transit due to rough handling even though the carton may not show external damage If you discover damage after unpack ing the unit make a written request for an inspection by the carrier s agent then file a claim with the carrier since such damage is most likely the carrier s responsibility After opening your shipment an inventory of the parts should occur immediately Check each item received in your shipment against the packing slip included with the shipment If any items are missing please refer to page 9 for step by step instructions on how to properly report the equipment loss ANDREW DO NOT DISCARD CONTENTS The product in this packaging was placed in the market after August 13 2005 Its components must not be discarded with normal municipal or household wast
18. bolts lockwashers and nuts as shown in Figure 38 Do not tighten 1 2 x 1 1 8 29 mm 77650 Shoulder Bolt 9974 64 Lock Washer 77639 and 9999 61 Nut Feed Rotating Tube Assembly 3 8 x 1 3 4 44 mm 9963 146 Bolts 9974 63 Lock Washers Feed Supports and 9999 60 Nuts Drum Assembly Figure 38 I NDREW 31 Installation Procedures Step 4 Attach 77874 feed supports between rotating tube tabs and corresponding drum tabs as shown in Figure 38 Fully tighten Use 1 2 x 1 1 8 29 mm shoulder bolts lockwashers and nuts Note Ensure shoulder bolts are fully seated and feed support angles are installed edge down with flats of angles facing upward Step 5 Fully tighten flange to drum connection hardware Step 6 Attach circular waveguide assembly to 201606 feed horn assembly as shown in Figure 39 Note Deep recess end of mounting pipe flange should be oriented toward feed horn while shallow recess end should be toward rotating tube assembly Use 1 4 x 1 in 25 mm bolts and lockwashers Insert 10683 469 O Ring spacer between assemblies as shown Insert bolts from circular waveguide to feed horn 1 2 x 2 1 2 63 mm 9963 335 Hex Screw Lock Washer and Nut 42866 Circular Waveguide Deep Assembly Recess 77646 2 Feed Horn Mounting Pipe 201606 Feed Horn Assembly 10683 469 O Ring gt 6 Note Typical C Band Feed af 1 4 x 1 25 mm Shallow Horn Assembly Shown for 9963 89 Bolt and Backus R
19. ckscrew boots for security of attachment at both ends for abrasion tears cuts brittleness and other damage that may expose the jackscrew to the environment water dust etc Minor repairs can be made with RTV 108 silicone rubber sealant Visually inspect the feed window for dirt and the feed feed supports feed window and reflector for distortion foreign object damage and environmental deterioration due to ice and snow dust rain hail and high winds etc which may cause electrical compo nent and or structural deformation Check the cable attachment to the resolvers and to the LNA or LNB s and enclosure mount interface for security the cable rouging for secure hanger attachment and the cable insulation for cuts cracking abrasion and other deterioration Check the LNA or LNB s and the resolvers for a secure mechanical attachment Ensure proper torquing of polarization drive gear box setscrews and appropriate tensioning of corresponding drive chain assembly if applicable Check if applicable that the drain holes in the bottom of the enclosure are not obstructed and there is no evidence of water accumulation Check the enclosure doors for proper closure and that the door seals are intact not torn abraided or otherwise damaged Check that all other seals are intact and if not use a coating of RTV 108 sili cone rubber sealant to seal any exposed electrical fitting bolt hold or other possible water entry to electrical
20. crcrcracca 60 ANNAN ia A a A A ad oo 61 Drive System Voltage and Current CheckKS o ooocccoccrncnrana 63 Preservation of Component PartS oooooccoconomnan a 65 Aluminum Parts ira AA AAA AAA 65 GalVanized Surfaces 0 A Ba AA A AAA a OR Wat a RE 65 Lubrication 6000 ac ARIS A bse RR AA A AA RA A a RS Ai 65 JackscrewS MOtors oooococcccc ee eee eee eee ene eee 66 Gear Motor Housing Fill Drain Requirements oooocccccncnnananannanaaan 66 2 Table of Contents 1 3 Meter Earth Station Antenna Introduction Like all Andrew earth station antennas the 7 3 Meter Earth Station Antenna provides high gain and exceptional pattern characteristics The electrical performance and excep tional versatility provides the ability to configure the antenna with your choice of linearly or circularly polarized 2 port or 4 port combining network That versatility is provided at the time of initial purchase as well as in the future as your satellite communication requirements evolve The aluminum reflector is precision formed for accuracy and strength requiring minimal assembly The reflector assembly is 24 feet 7 3 meters in diameter and segmented in a sixteen piece configuration to reduce shipping volume and facilitate transport to remote sites Reflector panels are conversion coated and painted with a highly reflective white paint The versatile tripod mount can be purchased with either manual or motorizable capabili ties The t
21. ction Should it be expected that winds will exceed 125 mph it is recommended that Andrew antennas be steered to specific azimuth and elevation orientations to minimize wind forces upon the structure and thereby increase the probability of survival 8 It is recommended that all cross axis waveguide and coaxial cables are secure such that high winds will not cause excessive flexing Position the antenna to an elevation of 90 degrees The azimuth jackscrew should be placed in the center of its travel 9 When the antenna is transmitting severe eye injury or injury to other parts of the body can result from exposure to radio frequency RF energy The antenna must be turned off before entering the area in front of the reflector and near the feed 6 Getting Started NOTE Failure to follow an installation procedure could result in damage to equipment or personal injury Additional warnings will be displayed throughout this manual for your awareness These warnings can be identified in warning boxes as shown in the following sample WARNING Additional warning information will be located in this type of format Andrew disclaims any liability or responsibility for the results of improper or unsafe installation operation or maintenance practices Andrew supplies all appropriate hardware parts required for the installation of your 7 3 Meter Earth Station Antenna All tools necessary for the installation process should be provided by th
22. e Contact your local waste disposal agency for recovery recycling or disposal instructions AA A EEE 8 Getting Started Returning Equipment Step 1 Step 2 Step 3 Step 4 Step 5 Andrew Corporation tries to ensure that all items arrive safe and in working order Occasionally despite these efforts equipment is received which is not in working condi tion When this occurs and it is necessary to return the equipment to Andrew Corporation for either repair or replacement return can be expedited by following the procedure listed below Call the Andrew Customer Service Center and request a Return Material Authorization RMA number as well as an address to forward the material Tag or identify the defective equipment noting the defect or circumstances Also be sure to write the RMA number on the tag It would be helpful to reference the sales order and purchase order as well as the date the equipment was received Pack the equipment in its original container with protective packing material If the origi nal container and packing material are no longer available pack the equipment in a sturdy corrugated box and cushion it with appropriate packing material Be sure to include the following information when returning the equipment Your Company Name Your Company Address City State and Zip Code Telephone Number RMA Number Problem Description Contact Name NOTE Absence of the RMA numbe
23. e or whenever the earth sta tion is suspected of degraded operation If any discrepancy in performance exists and the condition cannot be readily remedied to return the earth station to a proper operating condition the appropriate troubleshooting procedures should be referenced to locate the fault After the trouble is determined and the repairs affected a final operational check out procedure should be performed to verify that all discrepancies have been corrected The following paragraphs describe the inspection and preventive maintenance proce dures for the earth station These instructions include general cleaning and inspection the preservation of metal parts and lubrication Periodic replacement of assemblies or components as a preventive measure is not required Malfunctions of the earth station can be traced to components assemblies and parts through the use of applicable trou bleshooting procedures To prevent the excessive accumulation of dust and dirt as well as the removal of such contaminants thoroughly clean the equipment whenever visually inspecting the earth station components No special cleaning procedures are required However a thorough cleaning in accordance with the following procedures is required to assure continued trouble free operation Minor cleaning such as the removal of dust and loose foreign particles can be accom plished by one of the following Vacuuming Using a soft brush or lint free cloth Bl
24. e installation crew Andrew recommends the following tools to be used for a proper installation of the 7 3 Meter Earth Station Antenna Recommended Tools Tool Size Quantity Open End or Combination Wrenches 5116 Inch 2 7 16 Inch 2 9 16 Inch 2 7 8 Inch 2 3 4 Inch 2 1 2 Inch 2 1 1 4 Inch 1 Crane 1 Ton Minimum Capacity extended end 1 Nylon Web Slings 2000 pound breaking strength 3 Inch by 14 Foot 2 Rope or Cord 2000 pound breaking strength 50 Foot 1 Shackles 5 8 Inch 2 Ladder 10 Foot Extension 1 Drive Sockets 1 16 Inch 1 9 16 Inch 1 7 8 Inch 1 3 4 Inch 1 1 1 4 Inch 1 Breaker Bar 1 2 Inch 1 Spud Wrenches 1 1 16 Inch 1 1 1 4 Inch 1 Screw Driver Standard 1 Phillips 1 Allen Wrench 7 64 Inch 1 3 16 Inch 1 1 4 Inch 1 Tape Measure or other measuring device Standard 1 Felt tip Marker or other marking device Standard 1 Hammer Standard 1 Rubber Mallet Standard 1 Pry Bar Standard 1 Tin Snips Standard 1 Safety Gloves each installer Standard 1 Table 2 1 Recommended Tools Getting Started Parts Verification Reporting Equipment Loss or Damage Reporting Visible Loss or Damage Reporting Concealed Damage Inventory Equipment Received Andrew Corporation thoroughly inspects and carefully packs all equipment before ship ment If you find that there are missing components please notify Andrew Corporation immediately by contacting the Customer Service Center refer to page 4 If you find that there was damage c
25. ed 1 3 turn 120 degrees as shown in Figure 3 1a for bolt lengths less than four diameters and 1 2 turn 180 degrees as shown in Figure 3 1b for bolt lengths over four diameters Use Felt Marker F 2 Before After Tensioning Tensioning Use Felt Marker is Le 4 Before After Tensioning Tensioning Figure 3 1a A 325 Tensioning Procedure Figure 3 1b A 325 Tensioning For bolts less than 4 diameters For bolts over four diameters 11 Installation Procedures Tripod Ground Mount Assembly Azimuth Beam Assembly Step 1 Step 2 Step 3 The three point mount is an elevation over azimuth mount optimized for geostationary satellite applications The mount enables continuous elevation adjustment from 5 to 90 Azimuth adjustment is 90 and divided into three 120 ranges with 30 overlap Follow the subsequent procedures for proper installation of tripod ground mount assembly All ground mount hardware is type A 325 Lubricate all A325 bolt threads with supplied stick wax Note Do not tighten hardware until ground mount installation is complete unless otherwise instructed Attach 200056 and 200057 supports to upper portion of 201408 beam assembly as shown in Figure 3 Use 7 8 x 2 1 4 in 57 mm hardware 7 8 x 2 1 4 O 57 mm Or BOLTS AND NUTS 200056 SUPPORTS SUPPORT 201408 BEAM ASSEMBLY Figure 3 Raise 201408 azimuth beam assembly and attach to front foundat
26. eference Only 9974 15 Lock Washer Circular Waveguide Assembly Figure 39 NDREW 32 Installation Procedures Step 7 Attach 77646 2 feed horn mounting pipe to 201606 301808 feed horn assembly as shown in Figure 40 Use 1 2 x 2 1 2 in 63 mm hex screws lockwashers and nuts Insert bolts from feed horn to mounting pipe 33 Installation Procedures Step 8 Install circular waveguide assembly through 77639 rotating tube assembly and attach feed horn mounting pipe assembly to rotating tube as shown in Figure 41A Install 2010654 circular waveguide support assembly as shown in Figure 41B Use 1 2 x 2 in 51 mm bolts lockwashers and nuts Insert bolts from mounting pipe to rotating tube a a Le om WANA Figure 41A 201065A Waveguide Support Equipment Enclosure TARA SS P Figure 41B 34 Installation Procedures Step 9 Rotate drum assembly into upright position Level drum with shims until no side can bounce as shown in Figure 42 Figure 42 35 Installation Procedures 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 Drum Assembly Lower Drum Assembly Ring Bracket 1 2 x 1 1 2 38 mm 77955 Bolt 9974 64 Lock Washer y Figure 44 36 Installation Procedures Step 2 Remove entire end of panel c
27. fter instal lation Thoroughly remove conductive grease from hands and tools using soap and water Step 1 Refer to Figure 68 Attach lugs to universal terminals at each end of 46373 grounding cables as shown using 5 16 by 1 inch 25 mm bolts flat washers and nuts Install grounding cables on 7 8 by 2 3 4 inch 70 mm bolts at indicated positions 7 8 x2 3 4 70 mm BOLT AND WA 201327A JOINT ASSEMBLY 5 HA eZ bh 46373 3 T N 13 a o ETNI GROUNDING CABLE Q UNIVERSAL TERMINAL 5 16 x 1 he mm 7 8 x 2 1 4 BOLT FLATWASHER 57 mm AND NUT 201408 BEAM ASSEMBLY UNIVERSAL TERMINAL 25 mm 46373 3 BOLT FLATWASHER GROUNDING AND NUT CABLE Figure 68 ANDREW 52 Installation Procedures NOTES Step 2 Refer to Figure 69 Attach lugs to universal terminals at each end of 46373 grounding cable as shown using 5 16 by 1 inch 25 mm bolts flat washers and nuts Attach cable to available hole in panning frame using 7 8 by 2 1 4 inch 57 mm bolt and nut Attach other end of cable to existing 5 8 by 2 inch 51 mm bolt on tripod as shown Attach sec ond grounding cable to other side of elevation axis panning frame assembly Step 3 Attach foundation grounding cable connectors to each mount leg Cable attachment and foundation grounding system to be installed per local code Step 4 Securely tighten all remaining ground mount jack assembly hardware per A 325 hardware tensioning procedure NAN
28. h 201481 201482 supports to outrigger plate as shown in Figure 18 Use 7 8 x 2 1 4 in 57 mm hardware Insert bolts from supports to the outrigger plate p 201487 201488 Panning Frame K S s WW Outrigger Plate aa ima ee o S E PS 201481 201482 Support Figure 18 19 Installation Procedures Step 7 Attach second 201488 outrigger plate to 201487 panning frame assembly as shown in Figure 19 Use 7 8 x 2 1 4 in 57 mm hardware Insert bolts from inside assembly to outrigger plate Figure 19 Step 8 Attach 221721 elevation axis assembly to 201487 panning frame assembly and 221608 joint assemblies as shown in Figures 20 and 21 Use 7 8 x 2 1 4 in 57 mm hardware Insert bolts from elevation axis assembly to panning frame assembly and joint assem bly 221721 Elevation Axis Assembly Figure 20 20 Installation Procedures Figure 21 Step 9 Attach 301741 right tripod joint bracket and 301742 left tripod joint bracket to 221721 elevation axis assembly as shown in Figure 22 Use 7 8 x 2 1 4 in 57 mm bolt flatwasher under bolt and under nut and nut Insert bolts from elevation axis assembly to tripod joint brackets 7 301741 301742 Tripod Joint Bracket 221721 Elevation Axis Assembly Figure 22 Installation Procedures Step 10 Step 11 Attach 300026 tripod channel legs to tripod joint brackets as shown in Figure 23 Use 7 8 x 2 1 4 in 57 mm bolt fl
29. ified and or determined with such a review When installing the 7 3 Meter Earth Station Antenna be conscious of the recommended warnings presented below For further information or clarification of this information contact the Customer Service Center The recommended warnings are as follows 1 Electrical shock from voltages used in this antenna system may cause personal injury or death Prior to making any electrical connections or performing maintenance or repair ensure that the power is removed Electrical connections should be made only by qualified personnel in accordance with local regulations 2 Installation of antennas may require persons to work at elevated work stations Whenever persons are working at eight or more feet above the ground and not on a guarded platform they should wear safety belts with at least one preferably two lan yards 3 Never stand underneath any object while it is being lifted 4 Always wear a hard hat especially if someone is above you 5 Make sure no person is in or under the reflector while it is being lifted or positioned personal injury can result if the reflector assembly falls 6 Personnel should never be hoisted in or out of the reflector by the crane personal injury may result 7 Andrew earth station antennas supplied to standard product specifications will survive 125 mph winds in any operational position in moderate coastal industrial areas Severe conditions require additional prote
30. ion pad as shown in Figure 4 Use 7 8 in flatwashers and hex nuts Note Hex nuts and flatwashers supplied with 201630 anchor bolt kit 201408 BEAM ASSEMBLY 7 8 HEX NUTS 7 8 FLATWASHER FRONT ls SHEAR CAP FOUNDATION PAD Figure 4 12 Installation Procedures NDREW 13 Support Legs Assembly Step 1 Attach 201327A joint assembly to 201313A beam assembly as shown in Figure 5 Attach 200083 angles to 201313A beam assembly as shown in Figure 5 Use 7 8 x 2 1 4 in 57 mm bolts and nuts for each connection 7 8 x 2 1 4 57 mm BOLTS AND NUTS 201327A JOINT ASSEMBLY 200083 ANGLES 7 8 x 2 1 4 201313A BEAM ASSEMBLY 57 mm BOLTS AND NUTS Figure 5 Step 2 Attach 200088A joint assembly to 201313A beam assembly as shown in Figure 6 Use 7 8 x 2 1 4 in 57 mm bolts and nuts 200088A 7 8 x 2 1 4 JOINT ASSEMBLY 57 mm BOLTS AND NUTS 7 8 x 2 1 4 57 mm BOLTS AND NUTS 201313A BEAM ASSEMBLY Figure 6 Installation Procedures Step 3 Raise 201313A beam assembly to upright position and attach 201315 supports to 201327A joint assembly as shown in Figure 7 Use 7 8 x 2 1 4 in 57 mm bolts and nuts Insert bolts from 201327A joint assembly to supports Supports should be installed back to back with the flat of angle facing upwards Tighten supports until assembly can support itself Figure 7 Step 4 Attach 201301 201302 rear pad assembly to 201315 supports as sh
31. lvent and apply fresh grease Peiordically inspect and remove dust or dirt deposits from the motor housings to avoid hindering the heat exchange with the ambient air Slight dirt accumulation on the air vent screw through splash oil cannot be avoided however keep vent screw clean to ensure proper pressure compensation Lube points 2 3 7 and 8 shown in the Lubrication Chart require removal of the indicat ed drain plugs and collecting measuring the amount of SHC624 drain oil using measur ing cup The specified amount of oil must be added to the gear motor housing after installing the drain plug via the fill vent plug opening using supplied funnel Addition of the oil requires use of an appropriate filling utensil Use of a modified level stick will not correctly gauge the appropriate amount of oil in the gear housings Lube Service Lube Quantity Andrew Point Parts to be Lubricated Action Frequency Type Type Points Number 66 Preventive Maintenance Lubrication Chart Lube Components Frequency Type No of Lube Point to be Months of Points or Lubricated 3 6 Service a Elevation Jackscrew Housing Pressure Fiting Pressure Fiting sHcsz 1 Elevation Jackscrew Gear Housing Pipe Plugs SHC624 10 Oz Fill and Drain 3 2 Elevation Drive Intermediate Gearbox po c Pipe Plugs SHC624 34 Oz Fill and Drain Elevation Jackscrew Pivot Pin upper Le pee Se Pressure Fitting SHC32 Azimuth Jackscrew Pivot Pin front MEA Pressure Fit
32. m assembly ring reflector tee segment to back strut assembly back strut assembly to lower drum assembly ring and back strut assembly pairs Continue tightening attaching hardware on all reflector segments Step 16 Install 170147 quadrapod plates at positions indicated in Figure 54 according to proce dure in Figure 55 Do not tighten hardware Use 1 2 x 1 1 4 in 32 mm bolts lockwashers and nuts S N Quadrapod Quadrapod 1 2 x 1 1 4 32 mm 9963 103 Bolts 9974 64 Lock Washers and 9999 61 Nuts Figure 55 I NDREW 43 Installation Procedures Subreflector Strut Assembly Step 1 Attach subreflector strut assemblies to 170147 quadrapod plates as shown in Figures 56 and 57 Tighten hardware until snug only Use 1 2 x 1 1 2 in 38 mm bolts lockwashers and nuts Figure 56 Installation Procedures Strut Assembly Subreflector Bracket Reflector Rim Reflector Segment Tee Section 45 1 2 x 1 1 2 38 mm Bolts Lock Washers and Nut 1 2 x 1 1 2 38 mm 9963 186 Bolts 9974 64 Lock Washers and 9999 61 Nuts Typ 8 places Figure 57 Installation Procedures Step 2 Attach subreflector strut assemblies to opposing sides of 77943 apex bracket as shown in Figures 58 and 59 Use 1 2 x 1 1 4 in 32 mm bolts lockwashers and nuts Figure 58 1 2 x 1 1 4 32 mm 9963 103 Bolts 9974 64 Lock Washers and 9999 61 Nuts 77943 Apex Bracket Strut Assemblies j l 1 Sd Figure 59
33. make after break provision through the release of one push button as the alternate pushbutton is pressed Check the relays and contactors for free operation of the armatures and contact con dition The contacts are usable even though pitted burned worn or discolored The contacts or contactor or relay assembly should be replaced only when the contact mate rial has been completely torn away or worn off Visually inspect all mechanical parts for freedom of operation without binding or inter ference Check for security of all hardware and stripped or otherwise damaged threads Check metallic parts for corrosion dents distortion and other deformation Check for evidence of water inside the enclosure If any water is in evidence clean area thoroughly and check that all seals are intact and if not use a coating of RTV 108 silicone rubber sealant to seal any exposed electrical fitting bolt hole or other possible water entry to the enclosed electrical components in order to maintain a waterproof con dition Check or change humidity absorber Inspection of the antenna conforms generally to standard visual inspection procedures performed on electromechanical equipment In addition to these procedures perform the following checks and visual inspections for the specific conditions noted Inspect all wiring and cables particularly the network to enclosure and enclosure to mount interfaces for discoloration and burned insulatio
34. n moisture entry corrosion dirt breaks security of connection and other signs of deterioration Examine connections for dirt corrosion and mechanical defects Check for loose or broken lacing and cut abraided frayed brittle and cracked insulation Examine connectors for corrosion broken inserts and stripped threads Check con nector shells for distortion and dents and contact pins for bends misalignment or other deformities Check connector inserts for cracks and carbon tracking burns or charring indicating arc over Check all electrical component for dirt cracks chips breaks discoloration and other signs of deterioration and damage A discolored blistered or burnt condition is evidence of overload Operate the azimuth and elevation drives as well as the feed rotation in both the plus 61 Preventive 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 switch Inspect the azimuth and elevation ja
35. n by obtaining the correct Az El pointing data for the satellite of interest based on specific calculations for this particular site Using an inclinometer placed on the enclosure drum surface position the antenna to the specified elevation angle Manually move the antenna in the azimuth scanning back and forth around the direc tion of the specified azimuth angle to achieve the maximum greatest amplitude transponder signals Scan in one direction until the amplitude continues to diminish and then scan in the opposite direction until the same condition occurs Return to the position yielding the greatest amplitude The maximum azimuth excursion from the original setting should not exceed plus or minus 1 5 degrees or the antenna may begin to access a different satellite With the antenna positioned in azimuth such that the transponder signals are maxi mized follow the same procedure manually moving the antenna in elevation scanning up and down to further maximize the transponder signals Repeat this procedure alternating between the azimuth and elevation excursions of the antenna to peak the transponder signal amplitude With the antenna peaked in azimuth and or elevation check to see if you re peaked on a sidelobe Move the antenna in azimuth while observing the spectrum analyzer screen Refer to Figure 4 2 AZIMUTH AXIS WEST Azimuth Axis West ELEVATION AXIS m ELEVATION AXIS 4 WN 8
36. nstallation Procedures Step 5 Hoist elevation jackscrew panning frame assembly to mount as shown in Figures 32A 32B Figure 32B Step 6 Apply RTV to flange surfaces and attach 221384 azimuth pivot assembly to 201327A joint assembly with 7 8 x 2 1 4 hardware from pivot assembly to joint assembly as shown in Figure 32C Note Use one 7 8 by 2 3 4 inch 70 mm bolt flat washer and nut for later attachment of grounding cable 27 Installation Procedures Step 7 Step 8 Step 9 Attach 221345 azimuth pivot assembly to 201408 beam assembly with a line of RTV around the plate and four 7 8 x 2 1 4 in 57 mm holts inserted from pivot assembly to beam assembly as shown in Figure 33 Note Use one 7 8 by 2 3 4 inch 70 mm bolt flat washer and nut for later attachment of grounding cable 201408 BEAM ASSEMBLY 221345 PIVOT ASSEMBLY 718 x 2 1 4 Figure 33 Note If optional motor drive system is included install motors at this point Refer to installation instructions provided with motor kits Refer to Figure 34 Position hoisting ropes on motor jack assembly so jack will not roll when hoisted Attach one rope to large motor frame next to gearbox to balance assem bly do not attach rope to small motor Tie up loose conduit before lifting jack we Raise 221923 223180 azimuth jackscrew and attach 221738 pivot assembly to 201273 joint assembly with 1 x 2 1 2 in 63 mm hardware Note Mounting position of azimuth pivot j
37. orporation 24 hour Technical Assistance For technical assistance call the following numbers at anytime Call From Call To Telephone Fax North America toll free U S A 1 800 255 1479 1 800 349 5444 Any Location U S A 1 708 349 3300 1 708 349 5410 International Customer Service Center The Andrew Customer Service Center gives you direct access to the information and personnel service you need such as the following Place or change orders Check price and delivery information Request technical literature You can call from any of the following Call From Telephone Fax North America 1 800 255 1479 toll free 1 800 349 5444 toll free United Kingdom 0800 250055 toll free 44 118 9366 777 Australia 1 800 803 219 toll free 61 3 93579110 China 00 800 0 255 1479 00 800 0 349 5444 New Zealand 0800 441 747 toll free 61 3 3579110 Hong Kong 001 800 0 255 1479 002 800 0 349 5444 4 Introduction How to Use This Manual Overview Content The scope of this manual is intended to provide station personnel with the base installa tion operation and maintenance requirements necessary for a 7 3 Meter C X or Ku Band Earth Station Antenna This manual provides a convenient reference for autho rized operator service personnel requiring technical information on general system or specific subsystem equipment The tables and figures presented in this manual are used as communication aids for the installation operation and main
38. owing out the dust and dirt with low pressure 5 to 25 psi dry compressed air When using air to blow off the contaminants either avoid or be careful when directing the air stream on delicate parts To remove imbedded dirt grease or oil from electrical parts use a 50 percent solution of isopropyl rubbing alcohol and apply with a soft bris tle brush It may be necessary to brush some parts vigorously with a stiff bristle brush to remove imbedded and hardened dirt particles If possible avoid excessive use of clean ing solvent on electrical insulation After cleaning allow the cleaned parts to dry for 10 to 15 minutes before placing the equipment into operation Clean mechanical parts by first removing dust dirt and other loose contaminants with a 59 Preventive Maintenance Mechanical Parts Inspection Local ControllMotor Drive Controller scraper stiff brush bristle or wire in the case of rust or other corrosion or cloth or com pressed air at 25 to 40 psi Any accumulated imbedded dirt corrosion grease or oil deposits that require further cleaning may be removed with a bristle or wire brush and a cleaning solvent such as trichlorethylene or equal After cleaning allow cleaned parts to dry for 10 to 15 minutes before placing the equipment into operation The frequency of inspection is contingent upon the user s individual standards and the operational environment in which the earth station is located However a visual ins
39. own in Figures 8 thru 10 Use 7 8 x 2 1 4 in 57 mm bolts and nuts Insert bolt from inside of rear pad assembly to outside of support Supports should be installed back to back with the edges forward and the flats of angles facing rear Figure 8 14 Installation Procedures Step 5 Step 6 Attach 201314 supports to 201301 201302 rear pad assemblies and 201273 joint assembly as shown in Figures 9 and 10 Use 7 8 x 2 1 4 in 57 mm bolts and nuts Insert bolt from inside of joint assembly to outside of support Supports should be installed back to back with the edges forward and the flats of angles facing rear AN 1 8 PS AR VATE jr Y P Attach 201317 supports between angle pairs as shown in Figure 10 Select correspond ing mounting holes so that 201317 supports are parallel to 201313A beam assembly Use 7 8 x 2 3 4 in 70 mm hardware Supports attached with edges inward and flats facing up 7 8 x 2 1 4 57 mm BOLTS AND NUTS 201301 REAR PAD ASSEMBLY 201314 SUPPORT 7 8 x 2 1 4 57 mm BOLTS AND NUTS 201302 x REAR PAD 201327A E ASSEMBLY ASSEMBLY Figure 10 15 Installation Procedures Panning Frame Assembly Step 1 Attach 201487 panning frame to 221384 azimuth pivot assembly as shown in Figures 11 and 12 Note Ensure pivot assembly resolver limit switch mounting holes are downward e Use 7 8 x 2 1 4 in 57 mm hardware and apply supplied RTV to flange surfaces a
40. pec tion of the earth station components should be performed at least semi annually Where there are no established wear limits perform a visual inspection to locate worn or dam aged parts which could cause improper functioning of the earth station It is recommend ed that the mechanical and electrical inspection be performed on the assembled or par tially disassembled equipment to determine the extent of disassembly required prior to completely disassembling a suspected malfunctioning component or module In the absence of any special inspection requirements operational tests are the most effective means in isolating parts and assemblies requiring further inspection Any condition noted during inspection that may preclude continued proper operation of the earth sta tion prior to the next scheduled inspection should be noted The discrepant condition should be corrected repaired or replaced immediately or at the conclusion of the inspection procedure Inspection of the local control motor drive controller conforms generally to standard visu al inspection procedures on electromechanical equipment In addition to these standard procedures perform the following checks and visual inspections for the specific condi tions noted Check the front panel for illegible and indistinct panel markings Check the three position selector switches Azimuth Slow Fast Elevation Slow Fast and Polarization CCW CW for smooth operation audible clicking a
41. quires adjust ment the west side northern hemisphere of the subreflector should be adjusted outward by loosening the screws on the subreflector and adjusting the left side northern hemisphere outward An easy way to remember this adjustment feature is through the acronym WOLD West Out Left Down If your pattern dictates a need to adjust the elevation angle the right sidelobe requires adjust ment the bottom side of the subreflector should be adjusted downward by loosening the screws between the subreflector and the struts and adjusting the bottom side of the subre flector downward An easy way to remember this adjustment is through the acronym BOLD Bold Out Left Down Each of these adjustments should be repeated until each sidelobe is of equal distance from the peak of the mainlobe After the BOLD and WOLD adjustments have been made it may be necessary to adjust the main lobe The goal is to achieve a high null depth distance between lower intersection of sidelobes and top of main lobe as shown in Figure 4 5 In order to adjust the main lobe pattern characteristics ALL subreflector adjustment screws should be adjusted at the same degree Note Because the azimuth and elevation adjust ments have been set it is very important that the null depth adjustment be carefully conduct ed Be careful not to alter any previous adjustments that have been made to the subreflector Follow the procedure listed below when adjusting the null depth
42. r Fill f j Control A PEE A Kc Note Gearbox Medium speed motors f y shown for illustrative y Drain purposes only Gearbox Gearbox Level Vent High Speed Antenna Lubrication Points ANDREW 68 Preventive Maintenance Pressure Fitting Pressure Fitting Worm Gear Pillow Blocks 2 Polarization Drive Gear pe Pressure SN EA 3 AN Fitting tl Er ar 99 A Y we 6 Gearbox Gearbox Drain Level Pressure Fitting Motor Control Se Gearbox Gearbox Drain Level Medium Speed Antenna Lubrication Points ANDREW 69 Preventive Maintenance
43. r pressurized spray If necessary thin the primer with lacquer thin ner to the proper consistency Feather primer onto adjacent painted surfaces Allow primer to thoroughly dry before applying the finish paint coat Paint all RF surfaces such as the inside of the main reflector and subreflector with a high reflectance white paint This type of paint disperses light rays reducing the focus ing effect of the sun s radiation thereby reducing heat build up caused by the focused sun rays on the feed system Rear surfaces of the reflector and subreflector may be painted with a flat white enamel paint The paint can be applied with a brush roller or pressurized spray If necessary thin the paint with the appropriate thinner to the proper consistency Thoroughly paint over the primed surfaces and blend with the existing painted surface Remove all loose paint and corrosion by scraping wire brushing or using steel wool Edges of existing paint can be blended with the metal surface by using a fine grit sand paper Wipe the surface to be painted with a soft rag dampened in trichlorethylene lac quer thinner or equal be certain to remove all loose paint corrosion imbedded dirt grease and oil deposits or the paint will not adhere to the surface Lacquer thinner will dissolve paint if applied heavily and rubbed vigorously Do not use bleach soap solu tions or kerosene as it is difficult to remove the residue Allow the clean surface to dry
44. r will cause a delay in processing your equipment for repair Be sure to include the RMA number on all correspondence Ship the equipment to Andrew Corporation using UPS U S Postal Service or other appropriate carrier freight prepaid and insured The material should be forwarded to the address given by the Andrew contact in Step 1 9 Getting Started Installation Procedures Overview Foundation Preparation This section provides installation procedures for the 7 3 Meter Andrew Earth Station Antenna The installation procedures include instructions on the following antenna com ponents Mount Reflector to Mount Assembly Reflector Subreflector Enclosure Feed System C X or Ku band Before beginning the installation process on the ground mount assembly ensure that the foundation has been prepared Foundation specifications are provided by Andrew and may be used as a reference by civil engineering personnel when preparing the foundation for local soil conditions These specifications are available before the ship ment arrives by contacting the Customer Service Center or your Account Manager Foundation should be dimensioned as detailed in Figure 1 Sweep foundation clear of any dirt or debris To ensure smooth surface for mount scrape foundation pads as shown in Figure 2 Studs should extend 3 in above the surface and are 7 8 in in diameter Apply stick wax to stud threads to ease later connections
45. rate to allow easy access and careful removal of reflector panels When transporting panels support panel on side as packaged Step 3 Tie assembly down by knotting rope between lifting tabs and three 3 ft stakes as shown in Figure 45 This will prevent an unbalanced condition when adding panels one at a time gt S dige zi ee Figure 45 Step 4 Install reflector panel segment 1 with the center of the Andrew flash logo to upper drum ring assembly ring bracket 180 opposite tripod mounting holes as shown in Figures 46 and 47 Do not tighten Use 1 2 x 1 1 2 in 38 mm bolt lockwasher and nut Use 9 ft 3 m 2 x 4 to temporarily support perimeter of panel segment Note Top of support should be padded to prevent damage to panel Support should be placed on outside edge of panel opposite reflector segment tee section Figure 46 37 Installation Procedures Center portion of Andrew flash logo Tee Section 9 ft Temporary Support 1 1 AU Back Strut Assembly 1 Assembly Figure 47 38 Installation Procedures Step 5 Install back strut members to reflector segment tee section as shown in Figure 48 Use minimum torque to tighten hardware connecting back strut to reflector segment reflector segment to upper drum ring assembly and back strut to lower ring drum assembly Use 1 2 x 1 1 2 in 38 mm bolt lockwasher and nut Note Tighten only until lock washers are flattened Reflector
46. refully 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 within two percent Repeat steps 5 with the AZIMUTH EAST WEST switch in the alternate operating posi tion Turn the ELEVATION DOWN UP 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 elevation 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 within two percent Repeat step
47. ripod mount features 180 degree azimuth coverage in three continuous 120 degree overlapping ranges and executes 85 degree 5 90 degree continuous eleva tion adjustment This large adjustment range provides non critical foundation orientation and the ability to view geostationary satellites from horizon to horizon from any location worldwide The motorizable tripod mount features self aligning bearings for the elevation pivots resulting in zero backlash This mount can be operated manually but has the ability to be upgraded for motorized operation including steptracking Smartrack applications The motorizable mount type is indicated by the ES73 or ES73HS letters within the antenna type number The addition of the letter HS within the antenna type number indicates that the mount includes High Speed azimuth elevation machine jackscrews The azimuth elevation jackscrews are equipped for integration with the optional motor drive systems A cross axis grounding kit is supplied with each mount to ensure electri cal interconnectivity of the complete structure The aluminum enclosure and hot dipped galvanized steel mount maintain pointing accu racy and ensures durability and reliability The antenna and standard manual mount with enclosure will survive 125 mph 200 km h wind in any position of operation without damage or permanent deformation in moderate coastal industrial areas Severe condi tions require additional protection Andrew pro
48. rtain to remove any protective caps and clean off each lubrication fitting prior to injecting fresh grease The elevation and azimuth jackscrew assemblies are equipped with a grease fitting and corresponding pipe plug on opposite sides of the jack housing Remove the appropriate pipe plug and fill with with grease until lubricant seeps from the pipe plug opening Replace and securely tighten pipe plug The following is a list of the lubricant characteristics e Mobil Temp SHC32 A non soap hydrocarbon fluid type grease Operating tempera ture range is 65 degrees to 350 degrees Fahrenheit 54 degrees to 177 degrees Celsius Mobil SHC624 A low temperature synthetic oil for worm gear reducers Operating temperature range is 40 degrees to 125 degrees Fahrenheit 40 degrees to 52 degrees Celsius Moly Grease A grease lubricant containing molybdenum disulfide Operating temperature range is 85 degrees to 300 degrees Fahrenheit 29 degrees to 149 degrees Celsius Periodically inspect lifting screws on jackscrew assemblies to ensure adequate lubrica tion Loosen Jackscrew boot clamps to expose the lifting screw assembly Fully extend jackscrew assembly being careful not to exceed preset mechanical limits Brush thin coating of Mobil SHC32 grease on exposed lifting screw Replace boot and attach corre sponding boot clamps If lifting screw is rusty remove existing lubricant with solvent and wire brush rusted area Rinse with so
49. s 7 with the ELEVATION DOWN UP switch in the alternate operating posi tion If all voltage and current readings are within tolerance close the local control motor drive controller and place the LOCAL REMOTE switch in the REMOTE position to return antenna control to the studio Then close and lock the outer local control motor drive controller door When preserving the component parts refer to the following paragraphs in this section 64 Preventive Maintenance Preservation of Component Parts Aluminum Parts Galvanized Surfaces Lubrication Remove all loose paint and corrosion by scraping wire brushing or using steel wool If using steel wool near the feed window make sure that none remains on the feed horn window Edges of existing paint can be blended with the metal surface by using a fine grit sandpaper Wipe the surface to be painted with a soft rag dampened in trichlorethyl ene lacquer thinner or equal Be certain to remove all loose paint corrosion imbedded dirt grease and oil deposits or the paint will not adhere to the surface Lacquer thinner will dissolve paint if applied heavily and rubbed vigorously The reflector may be washed with plain water if necessary Do not use bleach soap solutions or kerosene as it is dif ficult to remove the residue Allow the cleaned surface to dry thoroughly before priming Prime the cleaned surface by applying zinc chromate primer The primer can be applied with a brush roller o
50. s indicated Bolts should connect from panning frame to pivot assembly y Figure 12 ANDREW 16 Installation Procedures Step 2 Attach 221608 joint assemblies to panning frame as shown in Figures 13 and 14 Use 7 8 x 2 1 4 in 57 mm hardware Insert bolts from panning frame to joint assembly 17 Installation Procedures Step 3 Attach 201316 support pairs to 221608 joint assemblies as shown in Figure 15 Place supports back to back with edges out and flat of angle inward Install 45967 spacer at midpoints of support pairs Use 7 8 x 2 1 4 in 57 mm hardware for each connection 201316 Supports Figure 15 Step 4 Attach 221345 azimuth pivot assembly to 201316 support pairs Attach 201596 mount ing plates to 221345 azimuth pivot assembly tab as shown in Figure 16 Use 7 8 x 2 1 4 in 57 mm hardware for each connection Insert bolts from rear of pivot assembly to connect supports Be 221345 Azimuth PA ee 201596 d Pivot Assembly E Rass Mounting Plates El 201316 Figure 16 18 Installation Procedures Step 5 Attach 201770 plate connecting 201484 201484 2 extension assembly to 201487 pan ning frame as pictured in Figure 17 Use 7 8 x 2 1 4 in 57 mm hardware Insert bolts from inside panning frame assembly 201770 Plate 201487 Panning Frame 201484 201484 2 Extension Assembly E Figure 17 Step 6 Attach 201488 outrigger plate to opposite end of 201487 panning assembly Attac
51. sher and Nut at Washer SA and Jam Nut starting reference only Dimension will Subreflector vary after adjustments are complete Assembly Figure 65 Step 2 Refer to Figure 66 Measure and note the distance between either outermost angle clip bolt head and the subreflector rim Obtain the corresponding measurements from the remaining subreflector struts and adjust the subreflector mounting hardware 4 places to achieve a maximum differential of 1 16 inch Figure 66 ANDREW 50 Installation Procedures Step 3 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 Adjustment Hardware Subrefiector Assembly SUBREFLECTOR DIMENSIONAL SETTINGS Operational Dimentional Frequency Setting Band Usage C Band Receive Only 100 0 2540 mm C Ku Band Receive Only 100 7 2558 mm Figure 67 Step 4 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 Cross Axis Note Thoroughly clean exposed portions of grounding cables unplated portion of uni Grounding Kit versal terminals and cor responding mounting surfaces using a wire brush Liberally apply supplied 203233 2 conductive grease to all connection surfaces prior to and a
52. t each actuation left to center and return and spring return from right to center For each of the two position selector switches Azimuth East West Elevation Up Down and Local Remote check for smooth operation and audible clicking at each actuation Inspect all wiring and cables for discolorization and burned insulation dirt breaks security of connection and other signs of deterioration Examine connections for dirt flux corrosion and mechanical defects Check for loose or broken lacing and cut brittle abraided frayed or cracked insulation Examine connectors for corrosion broken inserts and stripped threads Check con nector shells for distortion and dents and contact pins for bends misalignment or other deformities Check connector inserts for carbon tracking indicating arc over Check all electrical components for dirt cracks chips breaks discoloration and other signs of deterioration and damage A discolored blistered or burnt condition is evidence of overload Measure actual value of suspect electrical components and compare against specified value e Check transformer for an excessive wax deposit on the surface discoloration or a 60 Preventive Maintenance Antenna pungent odor indicative of burning vanish denoting overheating or a total breakdown Check all terminal boards for broken or missing terminals and stripped threads Check tightness of lead attaching hardware Check each starter for a
53. tenance of the 7 3 Meter Earth Station Antenna These tables and figures instantly convey messages as well as make the procedures easier to understand This manual uses tables and figures for the following references Tables The tables allow you to locate information quickly and easily Drawings The drawings supplement the installation instructions by using a combi nation of graphics and verbage to assist you in simplifying complex pro cedures and clarifying components Photographs The photographs compliment the installation instructions by providing actual examples of the steps being performed which allow you to view the installation progress in the proper sequence The manual is divided into five distinct sections each dealing with a specific technical topic relating to either system or component subsystem information The sections con tained in this manual are described and listed under the following technical headings How to Use Describes the manual s purpose content and communication aids This Manual Additionally this section lists the related documentation for the 7 3 Meter Earth Station Antenna Getting Provides the preliminary information needed to perform a successful Started installation This section should be reviewed prior to the installation The warnings recommended tools parts verification instructions on report ing lost or damaged equipment and installation checklist are located in this section
54. thoroughly before painting Paint the cleaned surface with a zing rich paint The paint can be applied with a brush roller or pressurized spray If necessary thin the paint with the appropriate thinner to the proper consistency Thoroughly paint over the cleaned surface and blend with the existing painted surface For long life and trouble free operation be certain not to extend the lubrication schedule beyond the frequency recommended in the Lubrication Chart The frequency should be shortened if the antenna is subjected to an adverse environment e g high tempera ture extended periods of rainfall high humidity dust storms etc Any component or part should immediately be lubricated if during inspection or operation rough jarring or intermittent motion is noted or if squeaky or other unusual noises are heard Lubrication is required on all metal to metal rolling or sliding parts Us the lubricants recommended Do not over lubricate Over lubrication can often be as damaging as under lubrication Prior to the application of lubricant to any parts use a clean cloth and or bristle brush and remove any old lubricant to prevent an excessive build up Remove indicated access plugs from square tube weldment and apply lubricant to panning frame tube 65 Preventive Maintenance Jackscrews Motors Gear MotorlHousing Fill Drain Requirements assembly and corresponding thrust pads Securely replace access plugs in square tube weldment Be ce
55. ting SHC32 7 1 Azimuth Jackscrew Gear Housing pr Es Pipe Plugs SHC624 4 Oz Fill and Drain 8 2 Azimuth Drive Intermediate Gearbox pr c Pipe Plugs SHC624 34 Oz Fill and Drain Polarization Drive Gear X Brush SHC32 Minimum Surface Coverage 10 Feed Rotation Worm Gear X Pressure Fitting SHC32 2 Pillow Blocks X Lubricate Inspect C Change Inspection requires checking for visible signs of oil leakage draining replacing and adding oil to ensure appropriate oil level requirements Excessively dirty oil will require fresh oil replacement If oil leakage is found to be excessive refer to appropriate troubleshooting information and perform applicable corrective action Periodic inspection procedures can be less frequent after first or second scheduled inspections Initial oil change requirements include flushing gear boxes with a standard cleaning agent 1 Type HS and STHS drives only 10 oz required for gearbox on Type MS drives 2 Type HS and STHS drives only ANDREW 67 Preventive Maintenance Pressure Fitting Pressure Fitting Worm Gear Pillow Blocks 2 Polarization A Drive Gear y A gt Pressure el HA y ia p Fill PAS ame OPE Fitting i NI Za 6 4 AY 7 A 8 a Gearb A aye Gearbox ja iS Gearbox Gearbox Pil Level Vent a oy p Y N Y M fax Gearbox Drain Pressure Fitting y ef Gearbox Moto
56. ve separate instructional bulletins located in the parts kit that contain the option The next step in the installation process is the reflector assembly Proceed to the next page to begin installation of the reflector 29 Installation Procedures Reflector Type A 325 hardware is utilized during the reflector attachment to the ground mount Subreflector l Use of A 325 hardware eliminates slippage between mating surfaces under high loading Feed Assembly conditions as well as the need for future retightening Refer to the A 325 tensioning pro cedure in preceding installation text CAUTION Adhere to any special instructions sten 7 ciled on crate relative to crate opening contents removal and or personnel safety FeedlWaveguide Aa p il Assembly Step 1 Pre assemble corresponding back strut assembly pairs 16 as shown in Figure 36 using 1 2 x 1 1 2 38 mm bolts 77956 strut spacers lockwashers and nuts Do not tighten 1 2 x 1 1 2 38 mm 77955 Bolt 9974 64 Lock Washer and 9999 61 Nut 77871 Back Strut 77956 Strut Spacer Figure 36 Step 2 Remove drum assembly from crate Lay drum assembly on its side on temporary sup ports as shown in Figure 37 Apply line of RTV sealant around feed opening Figure 37 ANDREW 30 Installation Procedures Step 3 Align tabs on 77639 feed rotating tube assembly with corresponding tabs on drum assembly Attach rotating tube to center of drum assembly using 3 8 x 1 3 4 in 44 mm
57. vides a complete line of available options including motor drive systems with power interfaces addressing domestic and international standards remote micro processor antenna control for motor drive systems pressurization equipment and inter connecting HELIAX cables and waveguide 3 Introduction Proprietary Data Information and Assistance Notice Technical Assistance The technical data contained herein is proprietary to Andrew Corporation It is intended for use in operation and maintenance of Andrew supplied equipment This data shall not be disclosed or duplicated in whole or in part without express written consent of Andrew Corporation Andrew Corporation provides a world wide technical support network Refer to the tech nical assistance portion of this this manual for the contact numbers appropriate to your location The installation maintenance or removal of antenna systems requires qualified experi enced personnel Andrew installation instructions have been written for such personnel Antenna systems should be inspected by qualified personnel to verify proper installation maintenance and condition of equipment Andrew Corporation disclaims any liability or responsibility for the results of improper or unsafe installation and maintenance practices All designs specifications and availabilities of products and services presented in this manual are subject to change without notice Copyright 2005 Andrew C
58. wrench with a lever arm longer than two feet Examine painted aluminum and galvanized surfaces and touch up where required At the conclusion of the installation procedure prior to turning the system over to the sta tion facility an installation acceptance check off sheet was prepared and duly signed off if installed by Andrew crew Part of this check off included voltage readings retaken to determine if proper voltage was available Current readings were also taken as a refer ence for future comparison to serve as a troubleshooting aid in determining possible equipment degradation and shortened life Any current reading taken during the follow ing procedure that varies by more than five percent from the pre established reference values necessitates troubleshooting the particular system involved to determine the cause and required corrective action Approximately every three months and during a period of down time disconnect as applicable the RF transmitter and all power supplies The main disconnect switch in the main load center box at the antenna site must be in the ON position and the LOCAL REMOTE switch in the local control motor drive controller must be in the LOCAL position Open the outer local control motor drive controller door at the antenna site to gain access to the conductors supplying power to the azimuth elevation and polarization drive motors NOTE During the following procedures the antenna drives azimuth elevation
59. y enclo sure to install panel seam hardware Care must be taken not to apply heavy weight to surface of panel segments Note that there are 16 panel segments each with 21 bolt holes numbered 1 21 from the center out which form concentric rings around the inside of the reflector as shown in Figure 53 Beginning with the center flash panel segment 1 tighten all panel seam hardware corresponding to bolt hole ring 11 located above reflector tee segment back strut assembly connection Continue tightening ring 11 reflector seam hardware working counterclockwise Panel Seam Tighten Hardware Ring 11 First 3rd 6 2nd 15 f 1443 t a 3rd 12 11 1 0 Panel To upper 9 4 Drum Ring Assembly Reflector to _ _ Back Strut Back Strut to Lower Drum Ring Assembly FL Figure 53 Tighten panel seam hardware along rings 10 and 12 simultaneously beginning with panel seam 1 Tighten panel seam hardware along rings 9 and 13 simultaneously beginning with panel seam 1 Tighten panel seam hardware along rings in pairs simultaneously beginning with rings 14 and 15 working toward the outside of the reflector to seam hardware ring 21 Tighten panel seam hardware along rings in pairs simultaneously beginning with hard ware rings 7 and 8 working toward the inside of the reflector down to seam hardware ring 1 42 Installation Procedures Step 15 Beginning with panel seam 1 fully tighten hardware attaching panels to upper dru

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