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Daktronics FB-1430 Скачать руководство пользователя страница 33

Electrical

Installation

7-2

Power Installation

There are two different considerations for power installation: installation with ground and neutral
conductors provided, and installation with only a neutral conductor provided. These two power
installations differ slightly, as described in the following subsections.

Installation with Ground and Neutral Conductors Provided

For this type of installation, the power cable

must

contain an isolated earth-ground conductor.

In this circumstance,

do

not

connect neutral to

ground at the
disconnect or at the
display.

This would

violate electrical codes
and void the warranty.

Use a disconnect so
that all hot lines and
neutral can be
disconnected. The
National Electrical
Code requires the use
of a lockable power
disconnect within sight
of or at the display. (Daktronics recommends a lockable, knife-switch disconnect at the
scoreboard location so that all power lines can be completely disconnected. Use a multi-
conductor disconnect so that all hot lines and the neutral can all be disconnected. This is
important in protecting the scoreboard against lightning.)

Installation with Only a Neutral Conductor Provided

Installations where no grounding conductor is provided must comply with Article 250-32 of the
National Electrical Code. If the installation in question meets all of the requirements of Article
250-32, the following guidelines must be observed:

l

Connect the grounding electrode cable at the local disconnect, never at the display
entrance
enclosure.

l

A disconnect
that opens all
of the
ungrounded
phase
conductors
should be
used.

l

The neutral
and the ground
conductors
should be
bonded in the
display power
enclosure.

Figure 3:

Installation with Ground and Neutral Provided

Figure 4:

Installation with Only Neutral Provided

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Содержание FB-1430

Страница 1: ...sions No part of this book covered by the copyrights hereon may be reproduced or copied in any form or by any means graphic electronic or mechanical including photocopying taping or information storage and retrieval systems without written permission of the publisher Multi Section Outdoor Incandescent Scoreboards Installation Maintenance and Specifications Manual ED11973 Note Please fill in the in...

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Страница 3: ...enter 6 2 6 3 Scoreboard Mounting 6 3 6 4 Ad Panel Mounting 6 4 6 5 Optional 1 or 2 Line Message Center Mounting 6 4 Section 7 Electrical Installation 7 1 7 1 Power Requirements 7 1 Grounding 7 1 Power Installation 7 2 7 2 Power and Signal Connection 7 3 Connections Between Sections 7 3 Interconnect Panel Connections 7 3 Section 8 Numeric Scoreboard Maintenance and Troubleshooting 8 1 8 1 Componen...

Страница 4: ... 5 Louver Maintenance 9 5 9 6 Lamp Module Transformer 9 5 9 7 Fan Filters 9 5 9 8 Filter Removal 9 6 9 9 Fans 9 7 9 10 Lens Airflow 9 7 9 11 Structural Inspection 9 8 9 12 Cleaning the Signal Connectors 9 8 9 13 Troubleshooting 9 9 9 14 Replacement Parts List 9 9 9 15 Daktronics Exchange and Repair and Return Programs 9 10 Section 10 Scoreboard Options 10 1 10 1 Captions for Other Sports 10 1 Inst...

Страница 5: ... drawing label in the example 7087 P08A 69945 In this manual drawings are referenced by their last set of digits and the letter preceding them In Figure 1 the drawing would be referred to as Drawing A 69945 Drawings are inserted in alphanumeric order in the Appendix 1 2 Product Safety Approval Daktronics Outdoor Scoreboards are ETL listed tested to CSA standards and CE labeled for outdoor use Cont...

Страница 6: ...tains scoreboard service information Section 9 Contains team name message center service information Section 10 Describes scoreboard options and provides installation instructions Appendix A Contains all drawings referenced in this manual Appendix B Contains ED7244 a detailed instruction on scoreboard lifting and eyebolts ...

Страница 7: ...er Multi Section Baseball Scoreboards Drawing A 126086 Multi Section Baseball Scoreboards w TNMC Drawing A 126362 Multi Section Football Scoreboards Drawing A 42148 Multi Section Football Scoreboards w TNMC Drawing A 84233 Multi Section Soccer Scoreboards Drawing A 98161 Multi Section Soccer Scoreboards w TNMC Drawing A 128172 Multiple Section Multisport Scbd Models Drawing A 128203 ...

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Страница 9: ...ction 3 Specifications The chart on the following pages shows all of the mechanical specifications circuit specifications and maximum power requirements for each model in this manual Models are listed in alphanumeric order ...

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Страница 11: ...40 or 120 208 V AC L1 34 L2 28 BA 1518 Bottom H5 0 W16 0 D6 1524 mm 4877 mm 152 mm 500 lb 227 kg 857 lb 388 kg Indicators 40 W A1 63 2 Total H8 0 W16 0 D6 2438 mm 4877 mm 152 mm 18 3x5 457 mm 25 W 7 080 W 120 240 or 120 208 V AC L1 32 L2 27 Top H3 0 W16 0 D6 914 mm 4877 mm 152 mm 18 4x7 457 mm 25 W 9 600 W 120 240 or 120 208 V AC L1 43 L2 37 BA 1518 w TNMC Bottom H5 0 W16 0 D6 1524 mm 4877 mm 152 ...

Страница 12: ...otal H7 0 W28 0 D6 2134 mm 8534 mm 152 mm 2 Top H3 0 W14 0 D6 914 mm 4267 mm 152 mm Innings Runs Hits Err 15 3x5 381 mm BA 3718 w TNMC 2 Bottom H4 0 W14 0 D6 1219 mm 4267 mm 152 mm 900 lb 409 kg 2 crates 932 lb 419 kg 585 lb 265 kg All Others 18 3x5 457 mm All Digits 25 W 13 945 W 120 240 or 120 208V AC L1 65 L2 51 A1 64 A2 65 A3 66 4 Total H9 4 W36 0 D6 2845 mm 10 973 mm 152 mm Innings Runs Hits ...

Страница 13: ...25 W FB 1424 Top and Bottom H4 0 W18 0 D6 1219 mm 5486 mm 152 mm 500 lb 227 kg 905 lb 410 kg Indicators 25 W 7 400 W 120 240 V AC L1 34 L2 29 A1 12 2 Total H8 0 W18 0 D6 2438 mm 5486 mm 152 mm 24 4x7 610 mm 25 W FB 1424 w TNMC Top and Bottom H4 0 W18 0 D6 1219 mm 5486 mm 152 mm 650 lb 295 kg 1 055 lb 478 kg Indicators 25 W 9 635 W 120 240 V AC L1 43 L2 38 A1 12 2 Total H8 0 W25 0 D6 2438 mm 7620 m...

Страница 14: ...9 820 W 120 240 V AC L1 43 L2 42 A1 12 2 Total H8 0 W25 0 D6 2438 mm 7620 mm 152 mm Clock 30 4x7 762 mm 25 W All Others 24 4x7 610 mm 25 W FB 1530 Top and Bottom H4 0 W25 0 D6 1219 mm 7620 mm 152 mm 725 lb 330 kg 1 250 lb 567 kg Indicators 25 W 7 900 W 120 240 or 120 208 V AC L1 34 L2 33 A1 12 2 Total H8 0 W25 0 D6 2438 mm 7620 mm 152 mm Clock 30 4x7 762 mm 25 W All Others 24 4x7 610 mm 25 W FB 15...

Страница 15: ...ndicators 25 W 8 050 W 120 240 V AC L1 25 L2 42 A1 15 A2 16 Clock 30 4x7 762 mm 25 W 2 Total H8 0 W25 0 D6 2438 mm 7620 mm 152 mm TOL 18 3x5 457 mm 25 W All Others 24 4x7 610 mm 25 W FB 1630 w TNMC Top and Bottom H4 0 W25 0 D6 1219 mm 7620 mm 152 mm 900 lb 409 kg 1 475 lb 670 kg Indicators 25 W 10 930 W 120 240 V AC L1 46 L2 45 A1 15 A2 16 2 Total H8 0 W25 0 D6 2438 mm 7620 mm 152 mm Clock 30 4X7 ...

Страница 16: ... W 8 050 W 120 240 or 120 208 V AC L1 25 L2 42 A1 15 A2 16 Clock 30 4x7 762 mm 25 W 2 Total H8 0 W32 0 D6 2438 mm 9754 mm 152 mm TOL 18 3x5 457 mm 25 W All Others 24 4x7 610 mm 25 W FB 1630L w TNMC Top and Bottom H4 0 W32 0 D6 1219 mm 9754 mm 152 mm 1 050 lb 477 kg 1 875 lb 850 kg Indicators 25 W 10 930 W 120 240 or 120 208 V AC L1 46 L2 45 A1 15 A2 16 Clock 30 4x7 762 mm 25 W 2 Total H8 0 W25 0 D...

Страница 17: ...s 25 W 11 430 W 120 240 or 120 208 V AC L1 50 L2 45 A1 15 A2 16 Clock 30 4x7 762 mm 25 W 2 Total H8 0 W25 0 D6 2438 mm 7620 mm 152 mm TOL 18 3x5 457 mm 25 W All Others 24 4x7 610 mm 25 W FB 1830 Top and Bottom H4 0 W25 0 D6 1219 mm 7620 mm 152 mm 800 lb 364 kg 1 275 lb 578 kg Indicators 25 W 9 050 W 120 240 or 120 208 V AC L1 33 L2 46 A1 15 A2 16 Clock 30 4x7 762 mm 25 W 2 Total H8 0 W25 0 D6 2438...

Страница 18: ...5 457 mm 25 W All Others 24 4x7 610 mm 25 W FB 1830L w TNMC Top and Bottom H4 0 W32 0 D6 1219 mm 9754 mm 152 mm 1 125 lb 511 kg 1 875 lb 850 kg Indicators 25 W 11 930 W 120 240 or 120 208 V AC L1 54 L2 45 A1 15 A2 16 Clock 30 4x7 762 mm 25 W 2 Total H10 0 W32 0 D6 3048 9754 mm 152 mm TOL 18 3x5 457 mm 25 W Top H6 0 W32 0 D6 1829 9754 mm 152 mm All Others 24 4x7 610 mm 25 W FB 2001 Bottom H4 0 W32 ...

Страница 19: ...ers 24 4x7 610 mm 25 FB 2004 Bottom H4 0 W32 0 D6 1219 mm 9754 mm 152 mm 1 175 lb 534 kg 1 976 lb 896 kg Indicators 25 8 050 W 120 240 or 120 208 V AC L1 25 L2 42 A1 15 A2 16 2 Total H10 0 W25 0 D6 3048 mm 3048 mm 152 mm Clock and Score 24 4x7 All Others 18 4x7 25 W MS 2009 Top and Bottom H5 0 W25 0 D6 1524 mm 3048 mm 152 mm 900 lbs 408 kg 1 676 lb 760 kg Indicators 25 W 14 500 W 120 240 or 120 20...

Страница 20: ... 25 W 9 250 W 120 240 V AC L1 41 L2 36 A1 12 2 Total H8 0 W18 0 D6 2438 mm 5486 mm 152 mm 24 4x7 610 mm 25 W SO 1624 Top and Bottom H4 0 W18 0 D6 1219 mm 5486 mm 152 mm 550 lb 250 kg 1 015 lb 460 kg Indicators 25 W 8 400 W 120 240 or 120 208 V AC L1 33 L2 37 A1 13 A2 14 2 Total H8 0 W18 0 D6 2438 mm 5486 mm 152 mm 24 4x7 610 mm 25 W SO 1624 w TNMC Top and Bottom H4 0 W18 0 D6 1219 mm 5486 mm 152 m...

Страница 21: ...s 25 W 11 830 W 120 240 or 120 208 V AC L1 54 L2 45 A1 15 A2 16 Clock 30 4x7 762 mm 25 W 2 Total H8 0 W25 0 D6 2438 mm 7620 mm 152 mm TOL 18 3x5 457 mm 25 W All Others 24 4x7 610 mm 25 W SO 1930 Top and Bottom H4 0 W25 0 D6 1219 mm 7620 mm 152 mm 700 lb 318 kg 1 275 lb 578 kg Indicators 25 W 9 550 W 120 240 or 120 208 V AC L1 29 L2 50 A1 15 A2 16 Clock 30 4x7 762 mm 25 W 2 Total H8 0 W25 0 D6 2438...

Страница 22: ...See Note 2 Amps per Line Single Phase Driver Number and Address Clock 30 4x7 762 mm 25 W 2 Total H8 0 W25 0 D6 2438 mm 7620 mm 152 mm TOL 18 3x5 457 mm 25 W All Others 24 4x7 610 mm 25 W SO 2030 Top and Bottom H4 0 W25 0 D6 1219 mm 7620 mm 152 mm 750 lb 340 kg 1 325 lb 601 kg Indicators 25 W 10 050 W 120 240 or 120 208 V AC L1 33 L2 50 A1 15 A2 16 ...

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Страница 24: ...30 w TNMC Component Locations FB 1530 w TNMC A 127928 FB 1624 Component Locations FB 1624 A 127919 FB 1630 Component Locations FB 1630 A 127855 FB 1630 w TNMC Component Locations FB 1630 w TNMC A 127855 FB 1630 w 40W Lamp Component Locations FB 1630 w 40W Lamps A 138896 FB 1630L Component Locations FB 1630L A 128113 FB 1630L w TNMC Component Locations FB 1630L w TNMC A 128113 FB 1730 Component Loc...

Страница 25: ... Drawing Title Drawing SO 1830 w TNMC Component Locations SO 1830 w TNMC A 127874 SO 1930 Component Locations SO 1930 A 127875 SO 1930 w TNMC Component Locations SO 1930 w TNMC A 127875 SO 2030 Component Locations SO 2030 A 128111 ...

Страница 26: ...ematic 1 Drvr with 32 or 48 12 TNMC B 125886 FB 1530 Schematic 1 Driver A 124293 FB 1530 w TNMC Schematic 1 Drvr with 32 or 48 12 TNMC B 125886 FB 1624 Schematic 2 Drivers A 124291 FB 1630 Schematic 2 Drivers A 124291 FB 1630 w TNMC Schematic 2 Drvrs with 32 or 48 12 TNMC B 124294 FB 1630 w 40W Lamps Schematic 4 Driver FB 1630 40W B 137843 FB 1630L Schematic 2 Drivers A 124291 FB 1630L w TNMC Sche...

Страница 27: ...atic 2 Drvrs with 32 or 48 12 TNMC B 124294 SO 1830 Schematic 2 Drivers A 124291 SO 1830 w TNMC Schematic 2 Drvrs with 32 or 48 12 TNMC B 124294 SO 1930 Schematic 2 Drivers A 124291 SO 2030 Schematic 2 Drivers A 124291 TNMC 832 12 Schematic 832 12 TNMC A 125214 TNMC 848 12 Schematic 848 12 TNMC A 125216 ...

Страница 28: ... Spacings FB Track Soc A 70089 FB 1424 FB 1524 FB 1624 SO 1424 SO 1624 Structure Football A 44556 Beam Footing Recommend FB XX30 A 44515 Beam Spacings FB Track Soc A 70089 FB 1430 FB 1530 FB 1630 FB 1730 FB 1830 SO 1830 SO 1930 SO 2030 Structure Football A 44556 Beam Footing Recommend FB XX30L A 44516 Beam Spacings FB Track Soc A 70089 FB 1630L FB 1830L FB 2001 FB 2004 Structure Football A 44556 I...

Страница 29: ...ngs and all connection details must be designed and certified by a professional engineer licensed to practice in the state in which scoreboard will be installed Daktronics does not assume any liability for any installation derived from the information provided in the manual text or drawings or for scoreboard installations designed and completed by others 6 2 Lifting The Scoreboard or Optional One ...

Страница 30: ... top of the lower section Guide these cables into the hole in the bottom of the upper section for later connection If the lift eyebolts are removed plug the holes with bolts and the rubber sealing washers that were removed with the eyebolts Apply silicone or another waterproof sealant to the eyebolt openings Inspect the top and sides of the display for any other holes or openings that may allow mo...

Страница 31: ...mounting of advertising or identification panels Mount the ad panel s as follows 1 Use the mounting channel to determine which hole combination to use Be sure to keep the bolts as close to the beam as possible 2 Using the mounting channel as a template drill 9 16 holes in the upper and lower rear flange of the ad panel where the supports will go 3 Place square nuts inside the channel and thread th...

Страница 32: ...removable to allow access to the digits cabling and other components Correct power installation is imperative for proper display operation The following subsections give details of display power installation Grounding Displays MUST be grounded according to the provisions outlined in Article 250 of the National Electrical Code Daktronics recommends a resistance to ground of 10 ohms or less The disp...

Страница 33: ... the display Daktronics recommends a lockable knife switch disconnect at the scoreboard location so that all power lines can be completely disconnected Use a multi conductor disconnect so that all hot lines and the neutral can all be disconnected This is important in protecting the scoreboard against lightning Installation with Only a Neutral Conductor Provided Installations where no grounding con...

Страница 34: ...ing sides of the various sections when mounting the scoreboard To gain access to the entrance panel open the access door on the front of the scoreboard Refer to Section 4 for the location of the access door for the model of your scoreboard Pull the cables from the other sections and route them to the bottom of the interconnect panel Connect the plugs on the cables to the mating jacks in the interc...

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Страница 36: ...awings in Section 4 for the location of the lamp drivers To access a lamp driver Important When the lamp drivers are replaced plugs P25 and P26 if present must be removed from the old driver and plugged into the new driver 1 Open the access panel by turning the 1 4 turn screws The door will swing open 2 Remove the driver enclosure cover 3 Disconnect the plugs 4 Remove the wing nuts securing the la...

Страница 37: ...ard the lamp drivers perform the task of switching digit lamps on and off refer to Drawings A 123940 and A 123941 Each lamp driver has connectors providing power and signal inputs to the circuit and outputs to the digits and indicators The connectors function as follows 8 Column Lamp Driver Connector No Function 1 8 Outputs to digits and indicators 17 Control signal input 18 Power input for output...

Страница 38: ...eling of harnesses for connection to the interconnect panel and the related driver 8 6 Power On Self Test Reference Drawings Incandescent Driver Power Up Self Test Drawing A 128283 Power Up Self Test On a FB 1424 Drawing A 128301 The scoreboard performs a self test each time that power is turned on and the control console is powered off or not attached to the scoreboard If the control console is a...

Страница 39: ... are replaced plugs P25 and P26 if present must be removed from the old driver and plugged into the new driver Description Location Daktronics Part No Fuse AGC 1 2 F17 in lamp driver F 1000 Fuse AGC 10 F1 F16 in lamp driver s F 1006 Lamp 25W 120 V 3x5 and 24 digits 15 and 18 4x7 DS 1029 Lamp 30W 130 V 15 and 18 4x7 digits DS 1182 Lamp 40W 120 V Indicators DS 1163 Lamp 25A19 230 V frosted Digits an...

Страница 40: ...n Scoreboard will not light Console not connected or poor connection No power to the control console No power to the scoreboard Bad relay or poor relay connection in signal circuit Driver logic fuse F17 blown P17 P19 or P20 unplugged Half of the scoreboard will not light Circuit breaker tripped at service panel Driver malfunction Poor signal contact at main power connection Garbled display Control...

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Страница 42: ...irty fan filters or without fan filters will void the warranty 5 The Daktronics product managers engineering staff must approve any changes that may affect the weather tightness of the display This is to include but is not limited to border shrouding back sheets cooling fans fan filter and filler panels If ANY modifications are made to the weather tightness of the display detailed drawings MUST be...

Страница 43: ...ngled edge of the tool should be down so it wedges the latch pin down as it is pushed further into the access hole Refer to Section 9 14 for the part number of the access tool 3 When the front access tool is fully inserted the module latches should be released refer to Figure 6 4 With the latch released pull the lens assembly slightly away about a half inch from the display This will prevent it fr...

Страница 44: ...place until the latches snap into place and the lens assembly is secured to the display It may be necessary to use a solid object such as a short length of two by four to properly seat the assembly Place the two by four across the louvers so the pressure on them is evenly distributed and strike the board with the heel of your hand This should drive the assembly in place 4 Pull firmly on the assemb...

Страница 45: ...sing the lamp extracting tool 4 Replace defective lamps with Daktronics approved lamps of the same wattage Refer to Section 9 14 for the correct replacement lamps 5 Noting proper lens orientation snap the lens back into the lens reflector assembly refer to Section 9 4 9 4 Lens Position and Sequence Reference Drawing Lens Removal Front Access Drawing A 99898 The slot in the bottom of the reflector ...

Страница 46: ...st be replaced The lens reflector assembly containing the damaged louvers should be returned to Daktronics for repair or replacement 9 6 Lamp Module Transformer Displays with team name message centers are shipped with transformers which when wired to the 120 volt tap with a line voltage of 120 volts will deliver 11 0 volts to the lamp Lamp life is estimated to be 17 000 hours with this transformer...

Страница 47: ... If leaks are detected repair or replace the pile weatherstripping seal around the edges of the cover A method for checking both the airflow through the lenses and the cabinet seal is as follows Direct smoke toward the fan inlet and note where the smoke exits Check all around the cabinet and the lenses If smoke does not exit a particular group of lenses remove the lenses to clean out any debris re...

Страница 48: ...r pencil to ensure that the bearings are free and the fan is still in balance After 10 of the fans have been replaced we recommend replacing all fans to reduce associated maintenance costs that may incur with increased heat buildup from fan failure A fan testing power cord is available for checking fan operation Plug the test cord into the questionable fan and plug the other end into a 110 volt ou...

Страница 49: ...Connectors If it becomes necessary to remove or replace a signal cable clean the plugs and the circuit board jacks with Deoxitä refer to Section 9 14 for the part number Inspect and clean the jacks and plugs thoroughly to ensure the absence of any foreign matter The presence of dirt or water may cause signal interconnect problems After the parts are cleaned push the plug into a jar of Cailubeä ref...

Страница 50: ... appropriate main fuse or breaker Entire display does not work Check 120 VAC input power to sign Check all signal connections Check controller output 9 14 Replacement Parts List Refer to the following table for Daktronics baseball scoreboard replacement parts Refer to Section 8 8 for a listing of parts required for the service of the scoreboards Refer to Section 9 15 for a description of Daktronic...

Страница 51: ...05 1115 if you have questions regarding the exchange program or any other Daktronics service When you call the Daktronics Help Desk a trained service technician will work with you to solve the equipment problem You will work together to diagnose the problem and determine which exchange replacement part to ship If after you make the exchange the equipment still causes problems please contact our He...

Страница 52: ...esentative call the Daktronics Help Desk for the RMA This expedites repair of your component when it arrives at Daktronics Packaging for Return Package and pad the item well so that it will not be damaged in shipment Electronic components such as printed circuit boards should be installed in an enclosure or placed in an antistatic bag before boxing Please enclose your name address phone number and...

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Страница 54: ...onal soccer caption sets that are available for use on football scoreboards l Drawing A 128281 shows the optional football caption sets that are available for use on soccer scoreboards Installing and Changing Captions Standard captions are applied directly to the face of the scoreboard optional captions are on changeable panels that fit into guides mounted above and below the standard captions If ...

Страница 55: ... horn body to the bracket with the 1 4 bolts and nuts provided Be sure that the horn is oriented so that the wire opening is at the bottom 3 Attach the relay to the bracket with the 10 hardware 4 Mount the ground lug below the horn with a 1 4 bolt and nut 5 Insert the green wire from the horn into the ground lug and tighten 6 Connect one black wire from the horn to the white wire from the relay 7 ...

Страница 56: ...ists use the template to drill one 3 8 hole and two 7 32 holes in the panel 8 Thread the two gray wires form the horn through the top of the mounting angle 9 Attach the horn to the mounting angle using the 10 hardware provided 10 Insert the bushing into the 3 8 hole in the mounting angle 11 Attach the horn angle assembly to the panel over the 2 knockout and 7 32 holes using the 10 hardware provide...

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Страница 58: ...ipping Location for Manual Drawing A 91100 Multiple Section Soccer Scbd Models Drawing A 98161 Lens Removal Front Access for Manual Use Drawing A 99898 Lens Assy Removal Front Access for Manual Use Drawing A 99899 Caption Options Soccer Drawing A 101442 Components 8 16 Pos Power and Signal Entrance Drawing A 109114 Filter Removal 250 CFM Fan Drawing A 113986 Display Mounting Straps BA 3718 Drawing...

Страница 59: ... FB 1630L w TNMC Drawing A 128113 Component Locations FB 1830L Incl FB 1830L w TNMC Drawing A 128118 Component Locations FB 2001 Drawing A 128120 Multiple Section Soccer Scbd Models w TNMC Drawing A 128172 Multiple Section Multisport Scbd Models Drawing A 128203 Installation Specifications MS 2118 Drawing A 128206 Caption Options Football Drawing A 128281 Incandescent Driver Power Up Self Test Dra...

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Страница 149: ...Eyebolts B 1 Appendix B Eyebolts Eyebolts ED7244 ...

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Страница 151: ...ebolts also decreases with the lift angle due the bending stress on the eyebolts In sum the smaller the angle between the cable and the top of the display the lighter the sign must be to safely lift it Do NOT attempt to lift the display when the lift angle is less than 30 degrees Horizontal Load Angle A A A A Angle Factor L H Line Weight Line Weight 90 1 00 θ θ θ θ Load Anchor Load Anchor 60 1 155...

Страница 152: ...00 91 300 Blank 1 1 2 6 3 17 800 4 500 3 600 A Do not use eyebolts on angular lifts unless absolutely necessary For angular lifts the shoulder pattern eyebolt is preferred B Load should always be applied to eyebolts in the plane of the eye not at some angle to this plane C Shoulder eyebolts must be properly seated should bear firmly against the mating part otherwise the working loads must be reduc...

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