BG770 & BG790
Contents
1. Access Cover 82 NH31 06 5 16 18 x 3 8 Set Screw 10 8021 Electrical Panel 82 NH38 06 3 8 16 x 3 8 Cone Point Set Screw 10 8022 Elec Panel Mounting Bracket 82 PX06 28 6 32 x 3 Pan Head Slotted Screw 11 8031 Shaft 82 PX08 04T 8 32 x 1 4 Self Tapping Screw 5 18 quare Head Bolt o EM 82 QN75 26 5 16 18 x 3 4 Square Head Bolt 16 8001 V Belt aM i Screw JH am Nu s 4 RU 84 RH 50 1 2 13 Hex Nut 21 3260 1 84 WH 10 10 32 Serrated Washer Head Nut NE 84 WH 25 1 4 20 Serrated Flange Nut 1 23 2017 Limit Switch 84 WH 31 5 16 18 Serrated Flange Lock Nut 23 2761 Rocker Switch 84 WH 38 3 8 16 Serrated Flange Lock Nut 23 8001 Toggle Outlet 84 WN 25 1 4 20 Wing Nut ee ae ne Relay 85 FW 31 5 16 Flat Washer WI X 85 FW 38 3 8 Flat Washer 28 8003 Duplex Outlet Cover 85 LS 75 3 4 Split Lock Washer 31 10 17 1 32 x 1 8 Spacer 91 G0128 Electrical Enclosure 31 2712 Nylon Sensor Spacer 32 8002 Barrier Gate Gear Reducer VARIABLE PARTS 42 110 8 Position Terminal Block 42 110 2 10 Position Terminal Block ITEM PART DESCRIPTION QTY 46 20 XXXXX X Motor 1 65 1209 Single Arm Optional 80 1003 6 32 Tinnerman Nut 20 1050B 2P 1 2HP 115 208 230Vac 10 60Hz Used on BG770 50 11 nO 4 4 nO 4 Oo DO nO BRP Oo a SH 00 g AH SB SB IOP HS HS BS SB Sw SS ep l al qmw 80 575 3 4 Flat Washer2. TURN OFF POWER and connect the two output terminals or wires of the access control device to the terminals 1 and 3 on the control wiring terminal strip Use a wiring method that will provide a permanent durable and weatherproof connection between the gate and the access device OPERATING INSTRUCTIONS CAUTION ELECTRICAL OPERATION The BG770 and BG790 barrier gate operators are designed to provide years of trouble free operation The gate may be operated Keep hands clear of moving parts The motor will start when by means of the two button control station or by other means if AUTO MANUAL switch is flipped to the MANUAL position provided ON OFF POWER SWITCH The gate is provided with an ON OFF power switch To shut power off remove the access cover and move the toggle switch on the right side of the main electrical cabinet to the OFF position OVERLOAD PROTECTION The motor is protected by either a manual reset Single Phase unit or automatic reset 3 phase unit thermal overload protector The overload protector will trip when the motor temperature is too hot DO NOT ATTEMPT TO BYPASS THIS UNIT If the overload trips the gate could start by itself when the overload is reset either manual or automatic Exercise caution when resetting the overload On one phase units the reset button is located on the cover of the electrical cabinet If after resetting the overload continues to trip consult a qualified
3. Double check the gate and its related hardware Does the gate move freely Are there unprotected pinch points If yes then correct WIRING DIAGRAM Always reference the wiring diagram that was supplied with the operator Note that some of the accessory items may have their own wiring diagram If you cannot correct the problem or if you feel you will require technical assistance contact your local distributor or dealer If you do not have a distributor or dealer then contact us for technical assistance Please when calling for assistance make sure you have the gate operator model number voltage phase horsepower and a list of all accessories that are attached to the operator ILLUSTRATED PARTS MODEL BG770 Operator Assembly REPAIR PARTS MODEL BG770 ITEM PART DESCRIPTION QTY ITEM PART DESCRIPTION QTY 03 8024 K Pole Contactor NOT SHOWN 07 8003 Lower Crank 80 G0187 1 2 x 1 2 x 1 3 8 Key 07 8004 Upper Crank 81 8000 Shock Mount 07 8005 Crank Link 81 PX06 06T 6 32 x 3 8 Self Tapping Screw 07 8007 Gate Arm Hub 82 CB31 26 5 16 18 x 2 1 2 Carriage Bolt 10 3522 Reducer Shim 82 HN25 08 1 4 20 x 1 2 Hex Head Bolt 10 8001 T Tan Barrier Gate Enclosure 82 HN25 18 1 4 20 x 1 1 4 Hex Head Bolt 10 8007 M Gate Bracket 82 HN31 16 5 16 18 x 1 Hex Head Bolt 10 8014 Switch Bracket 82 HN38 24 3 8 16 x 2 Hex Head Bolt 10 8016 T Tan Top Cover 82 HN50 25 1 2 13 x 2 1 4 Hex Head Bolt 10 8017 T
4. installation of factory provided optional open and or hold open loop detectors and for connection of factory provided optional radio controls see Optional Accessories on page 12 Open Close Push Button Arm Hub Counter Weight Clamp Threaded Rod 3 8 16 x 18 Key 1 2 x 1 2 x 1 3 8 Hex Head Bolt 1 2 13 x 2 1 4 Hex Head Bolt 1 2 13 x 3 Cone Point Set Screw 3 8 16 x 3 8 Hex Nut 1 2 13 Serrated Flange Nut 3 8 16 Flat Washer 3 8 Flat Washer 1 2 Split Lock Washer 1 2 Owner s Manual A WARNING To reduce the risk of SEVERE INJURY or DEATH disconnect power BEFORE performing ANY adjustments MODEL BG790 PACKING LIST PART NUMBER DESCRIPTION 1 1 1 QTY 1 2 2 2 2 2 2 4 4 8 8 8 6 1 NOTE Install line power here Do not install line power in panel shown below Power switch should be in the OFF position AUTO MANUAL switch should be in the AUTO position PAD MOUNTING 1 Layout the concrete pad Figure 2 Be sure to locate electrical conduit inside the hatched 14 x 13 area 2 Excavate required area for pad and conduit Pad depth should be below the frost line or as required by local codes 3 Pour concrete pad Concrete pad should be level and above the ground line 4 Allow the concrete to set at least two days before installing operator 5 Secure operator with four concrete anchors not provided ARM FABRICATION MODEL BG770 SINGLE ARM If you are making the arm y
5. 31 5 16 Split Lock Washer 42 3608 8 Position Terminal Block 85 LS 75 3 4 Split Lock Washer 65 1208 Wishbone Arm 91 G0128 Electrical Enclosure 65 8056 Counterweight Kit 94 G0233 Power Cable e lt aN T 1 2 1 1 1 1 1 1 1 1 1 2 1 5 1 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 8 6 2 8 1 2 4 8 4 80 1003 6 32 Tinnerman Nut 94 G0234 Motor Cable 80 207 36 1 4 x 1 4 x 1 1 4 Disconnect Key 82 HN52 18 1 2 20 x 1 1 4 Hex Head Bolt VARIABLE PARTS 82 HN52 20 1 2 20 x 1 1 2 Hex Head Bolt 82 NH38 06CP 3 8 16 x 3 8 Cone Point Set Screw 47 2020000 X Motor 1 84 JH 76 3 4 16 Jam Nut 20 1050B 2P 1 2HP 115 208 230Vac 10 60Hz 85 FW 50 1 2 Flat Washer A BG790 50 21 BG790 50 81 85 15 50 1 2 Split Lock Washer 20 3050B 4E 1 2 208 230 460Vac 30 60Hz NOT SHOWN BG790 50 43 BG790 50 83 02 102 SI iri Key Switch 20 3050M 5 1 2HP 575Vac 30 60Hz 10 8027 Electrical Panel Hanger Kit 24 XXX X Relay 11 8062 Intermediate Shaft 24 115 1 115Vac Relay 13 8001 Rubber Grommet 19 5051 50 Chain 24 230 5 208 230Vac Relay Used on All 208 230Vac 19 9025 50 Chain Half Link 31 10 17 1 32 x 1 1 8 Spacer 25 XXXX Fuse 25 2006 6A Fuse 74 G0133 Control Box 80 1904N Failsafe Board Stand Off 25 2010 10A Fuse Used on BG790 50 11 80 8001 Access Panel Lock 82 HN75 26 3 4 10 x 2 1 2 Hex Head Bolt ITEM PART DESCRIPTION QTY 84 R
6. 5 16 x 1 1 4 Stud 10 8016 T Tan Top Cover 81 8000 Shock Mount 10 8017 T Tan Access Cover 82 CB31 26 5 16 18 x 2 1 2 Carriage Bolt 10 8021 Electrical Panel 82 HN25 08 1 4 20 1 2 Screw 10 8026 Bearing Plate 82 HN25 18 1 4 20 x 1 1 4 Screw 10 8051 T Tan Housing 82 HN31 16 5 16 18 x 1 Hex Head Bolt 10 8055 Counterweight Clamp 82 HN50 20 1 2 13 x 1 1 2 Hex Head Bolt 11 8061 Main Shaft 82 HN50 25 1 2 13 x 2 1 4 Hex Head Bolt 12 8032 4 Bolt Flanged Bearing 82 HN50 28 1 2 13 x Hex Head Bolt 12 8033 Female Rod End 82 NH31 06CP 5 16 18 x 3 8 Set Screw 12 8034 Female Rod End 82 PX06 06T 6 32 x 3 8 Self Tapping Screw 15 5032 50B32 Sprocket 82 PX06 28 6 32 x 3 Screw 15 9020 50B12 Sprocket 82 PX08 04T 8 32 x 1 4 Self Tapping Screw 16 8002 Cogged Belt 82 PX08 10T 8 32 x 5 8 Self Tapping Screw 17 2001 8 Pulley 82 RS10 20 10 32 x 1 1 2 Screw 17 2002 2 Pulley 82 SH10 18 10 32 x 1 1 4 Screw 21 3260 1 Transformer 84 JH 76L 3 4 16 Left Hand Jam Nut 23 2017 SPDT Limit Switch 84 RH 50 1 2 13 Hex Nut 23 2761 Rocker Switch 84 WH 10 10 32 Serrated Washer Nut 23 8001 Toggle Outlet Combination 84 WH 25 1 4 20 Serrated Flange Nut 14 24 24 1 24Vac Relay 84 WH 31 5 16 18 Serrated Flange Lock Nut 12 24 24 6 3 PDT 24V Relay 94 WH 38 3 8 16 Serrated Flange Nut 8 28 3000 Switch Box 84 WN 25 1 4 20 Wing Nut 2 28 8003 Duplex Outlet Cover 85 FW 31 5 16 Flat Washer 32 8002 GearReducer 85 FW 38 3 8 Flat Washer 42 110 2 10 Position Terminal Block 85 LS
7. X lt X lt X lt gt X lt gt lt gt lt gt lt LIMITED BEARING LUBRICATION The barrier gates require very little in the way of maintenance Motor and shaft bearing normally should not require lubrication The gear oil in the gear reducer is sealed in Unless a severe problem causes a seal to break it should never need replacement If gear oil is required use Mobilube C SAE140 or equivalent GREASE TURNBUGKLE Periodically grease the ball ends of the turnbuckle depending on the gate s frequency of use MOTOR CONNECTION SAME GN AS INCOMING POWER e FOR BG770 INTERCHANGE GREEN AND RED WIRES e w To protect against fire and electrocution So 115V MOTOR DISCONNECT power BEFORE installing BEGINNER acl 5 CONNECTION T SEE NOTE 3 m or servicing operator BK OL la Pa 2 Replace ONLY with fuse of same type 2 m tag of rating Fuse 3 24 3AG 250V SLO BLO 9 SEE NOTE2 7 o 0 L SEE NOTE 4 BK 115V 115V ONLY ACCESSORIES 08 R O L SEE 7 230V ONLY MOTE A 230V MOTOR CONNECTION FUSE 3 2A SEE NOTE 1 AUTO MANUAL OPEN Pt ia OPEN LOOP PRESENCE 995 4 H OPTIONAL AUX CLOSEL S GY 1 REMOVE JUMPER WHEN TIMER TO CLOSE IS USED 24V COIL zi 2 REMOVE JUMPER TO CAUSE GATE GN HM EN ARM TO CLOSE IMMEDIATELY UNLESS j HOLD OPEN LOOP IS ACTIVATED 4 OP 43 OR OR OPEN L S BL di TR NO c Y OR
8. are included for addition of a loop detector to open and or a loop detector to hold open not provided Activation of access device open button or loop detector to open will raise gate Gate will lower automatically unless hold open loop detector is activated or unless CLOSE button wiring has been made in which case gate will remain open until CLOSE button is pushed An optional timer will extend the time that the gate remains open AUTO MANUAL switch holds arm in vertical position ENCLOSURE Weatherproof heavy gauge pregalvanized steel powdercoat finish top and side access covers with key lock Model BG770 mue Im Le Up to 15 T DIMENSIONS Typical Installation ELECTRICAL OVERLOAD PROTECTION Automatic reset 3 phase operators or manual reset 1 phase operators thermal overload ELECTRICAL BOX NEMA 1 general purpose painted steel enclosure contains all motor control equipment Enclosure removable from operator CONTROL CIRCUIT Class Il 24Vac LIMIT SWITCHES Adjustable driven limit switches operate in class II circuit Not affected by removal of motor POWER ON OFF SWITCH Enclosed toggle switch HP rated MECHANICAL SPEED REDUCTION Wormgear in oil bath 60 1 ARM TYPE MODEL BG770 One piece type to 15 MODEL BG790 Counterweighted wishbone type to 24 ARM SPEED MODEL BG770 Opens in 4 seconds MOD
9. do so may result in SEVERE INJURY to persons and or damage to operator A ground screw is provided in the switch box for connection of the power supply ground wire Failure to properly ground this unit could result in electrical shock and SERIOUS INJURY THREE PHASE 230 Vac 460 Vac 575 Vac Maximum Length of Wire Run in Feet 3 100 4 750 14 225 35 550 1 925 3 000 8 975 22 425 1 225 1 900 5 650 14 075 775 WIRING CONNECTIONS Locate the electrical enclosure inside the cabinet The enclosure shipped loose may be removed from the cabinet to help in the connections described below When all connections are complete hang the enclosure as described in step 7 1 Open the cover of the electrical enclosure Refer to the wiring diagram supplied inside for all electrical connections 2 Be sure that power supply is of the correct voltage phase frequency and amperage to supply operator Refer to the Operator nameplate on electrical cabinet cover Connect power supply wires to the ON OFF power switch as shown on the operator wiring diagram DO NOT connect power at control panel L1 L2 L3 Route wires away from belt and limit switches 4 A 2 button control station OPEN CLOSE is provided as standard equipment with every BG770 and BG790 barrier gate If you are not using automatic controls to control the gate the 2 button control station may be connected as shown on the wiring diagram
10. installing CONNECTION or servicing operator 5 80 Replace ONLY with fuse of same type AA E MOTOR CONNECTION SAME of rating Fuse 3 2A 3AG 250V SLO BLO SEE NOTE 2 BS INCOMING ROWER So 208 230V so X MOTOR CONNECTION WIRE COLOR 208V R 230V OR 480 VT GEARBOX 575V GY HEATER SESTSV MOTOR CONNECTION OPTIONAL EQUIPMENT YEL SEE NOTE 1 AUTO MANUAL YEL YEL oo OPEN OPEN LOOP PRESENCE F 33 6 AUX t OPTIONAL w CLOSELIS tu 7 Om R1 1 REMOVE JUMPER WHEN TIMER TO CLOSE IS USED 24V COIL 2 REMOVE JUMPER TO CAUSE GATE GN ARM TO CLOSE IMMEDIATELY UNLESS HOLD OPEN LOOP IS ACTIVATED ony M ik OR lt s CLOSE BL 0 OR L S OR ER OR 24V COIL C HOLD OPEN LOOP PRESENCE OPTIONAL 24V COIL 24V COIL BK FLEUR i PUR PUR CLOSE L S BL E 1 202 0 3 TIMER _ OPTIONAL REMOVE JUMPER WHEN ADD JUMPER WHEN USING CLOSE BUTTON TIMER IS ADDED DO NOT USE WITH HOLD OPEN LOOP BRN OPEN LOOP XXX LOOP WIRES TERMINAL BLOCK ien OPTIONAL 24V HOLD WIRE CONNECTION FOR STANDARD CONTROL D
11. supplied with the gate to control the gate manually However the AUTO MANUAL switch should be kept in the AUTO position IMPORTANT NOTE Use 16 gauge wire or larger for all control wiring connections If the control wire is too small damage to the operator components may result 29 1 175 3 525 8 825 5 The control station must be mounted in a location adjacent to and within clear sight of the gate If you will mount the control station outdoors replace the standard station supplied with the operator with a weatherproof station The BG770 and BG790 barrier gates will interface with almost all types of commonly used control stations radio controls and access control equipment Refer to the wiring diagram for connection of these devices If you are using a loop detector to open and or hold open and close mounting space and plug in harnesses are provided in the electrical cabinet for installation of optional factory supplied detectors You may also use other detectors Refer to the Optional Accessories section on page 12 When all wiring connections are complete mount the electrical enclosure to the shelf housing shelf MODEL BG770 Hang electrical enclosure on the two screws provided on the front of the shelf in the housing MODEL BG790 Hang electrical enclosure on the two screws provided on the cross angle under shelf in the housing e N ARM ATTACHMENT For easier access during installation the top co
12. within a couple of seconds This can be caused by an external obstruction device that has failed If there are many accessories attached to and powered by the operator there may be too much current draw for the operator s control transformer This operator can only supply approximately 2 amps 24Vac Double check all accessories for their current requirements TROUBLESHOOTING PRIMARY VOLTAGE CIRCUIT Use extreme caution when troubleshooting the primary voltage circuit There are five 4 items in this circuit that could be causing trouble and they are e Motor e Transformer Contactor Figure 13 Power Disconnect Switch The first thing to check is the incoming power Is it there at the incoming side of the power disconnect switch If there is power then check for it at the transformer primary terminals If there is voltage at the switch and none at the transformer then you probably have a bad power disconnect and it should be replaced Check secondary output of transformer for 24Vac output If the first two check out okay then manually disconnect the operator from the gate Very carefully using a screwdriver with an insulated handle press down on the open side of the contactor Then do the same to the close side of the contactor Did the operator run in both directions If it did the problem may be in the low voltage control circuit It if did not then the problem is either in the contactor or the motor If th
13. 2 NH38 06 82 HN50 25 82 RH 50 85 LS 50 01 G0674 Shp ANG HH SITE PREPARATION Be sure that selected gate location has required clearance for arm movement and counterweights on model BG790 Refer to the dimensional drawings on page 3 Run electrical power to the site according to local electrical codes Figure 1 See chart on page 7 for correct wire size and length of run If the wire gauge is too high wire too small or the run is too long the gate may not run properly or may not run at all Damage to components may result IMPORTANT NOTE Be sure that the available power is the proper voltage phase frequency and amperage to supply the gate Refer to gate nameplate located inside the service cover 3 Select locations for control equipment and run any control wiring that may be needed such as loop wires card readers ticket spitters pushbuttons etc Po Figure 1 OPERATOR PREPARATION 1 Remove the wood base from the unit and discard 2 Locate the keys for the access panel taped to the arm mounting flange and remove 3 Open the side access panel and check the position of the power ON OFF switch 4 Open the cover of the electrical cabinet and be sure that the AUTO MANUAL switch is in the AUTO position 5 OPTIONAL CONTROL EQUIPMENT If loop detectors radio controls or other control equipment will be added at the site do so now Refer to the instructions in this manual for
14. 2 The Chamberlain Group Inc AS er 845 Larch Avenue Elmhurst Illinois 60126 1196 www liftmaster com INDUSTRIAL DUTY BARRIER GATE OPERATOR OWNER S MANUAL MODELS BG770 AND BG790 ARE FOR VEHICULAR PASSAGE GATES ONLY AND ARE NOT INTENDED FOR PEDESTRIAN PASSAGE GATE USE TABLE OF CONTENTS SPECIFICATIONS Operator Specifications 3 Operator Dimensions 3 OPERATOR WARNINGS Safety Installation Information 4 PREPARATION Carton 5 Site Preparation nnenananana 5 Operation 5 INSTALLATION Pad Mouhntihng 5 ward tata vaata RE Maat 6 Arim Fabricationiz Lie erae pee xit en 6 Calculate Arm Length 0 0 0 0 ccc cece eee eee 6 Wiring Specifications 7 Wiring Connections 7 Ario ttachinent neo nd saa De erae err dag a 8 9 Arm and Turnbuckle Shaft Adjustments 10 Limit Switch 11 OPTIONAL ACCESSORIES Vehicle Detectors Ses dares aco ace du ues e s emus 12 Radio Contlols oeste e Des d Medi Gas Ob 12 Card Readers Keypads or 12 Mounting Location 2 2 arp nens 12 OPER
15. 24V COIL L HOLD OPEN LOOP PRESENCE OPTIONAL aoi R1 PUR CLOSE L S Ni PUR BL m ____ timer SN OPTIONAL REMOVE JUMPER WHEN ADD JUMPER WHEN USING CLOSE BUTTON TIMER IS ADDED DO NOT USE WITH HOLD OPEN LOOP 23 9 eM i OPEN LOOP TERMINAL BLOCK 3 18 GY a OO LOOP WIRES s OPTIONAL PTT TT WIRE CONNECTION FOR STANDARD CONTROL DEVICES BRN LOOP OPEN LOOP Ja SES gn ts a n EE E E MOPE t DEF 4 BRN 74 9 P3 HOLD OPEN LOOP WIRE CONNECTION FOR OPTIONAL DEVICES 10 180 OO LOOP WIRES WIRE CONNECTION FOR 230V UNITS ONLY OPTIONAL 33 1s CONNECTOR FOR 24V OPEN LOOP DETECTOR IS CONNECTOR FOR 24V HOLD OPEN LOOP DETECTOR NOTES APPLICATIONS 1 TRANSFORMER PRIMARY VOLTAGE SAME AS OPERATOR LINE VOLTAGE CONTROL WIRING TYPE L2 24V SECONDARY FIELD WIRING 2 RELAY COIL VOLTAGE SAME AS OPERATOR LINE VOLTAGE NETT KG 3 WE RECOMMEND USING A DEDICATED CIRCUIT BREAKER FOR EACH OPERATOR MODEL TYPES 4 BROWN WIRES INSIDE MOTOR NOT USED SHOULD BE WIRE NUTTED HORSEPOWER 1 2 ALAR VOLTAGE PHASE 115 230V 60Hz 1 PHASE ONLY um DRAWING NUMBER aft Master U161014 1 e DATE REVISION ECN PROFESSIONAL 08 28 00 F 3 20 08 08 7165 WIRING DIAGRAM WARNING J 080 To protect against fire and electrocution 1 5 a 480V MOTOR DISCONNECT power BEFORE
16. 80 8001 Access Panel Lock 82 HN52 18 1 2 20 x 1 1 4 Hex Head Bolt 82 HN75 28 3 4 10 x 3 Hex Head Bolt BG770 50 21 BG770 50 81 84 JH 76 3 4 16 Jam Nut 20 3050B 4E 1 2HP 208 230 460Vac 30 60Hz 84 JH 76L 3 4 16 Left Hand Jam Nut Used on BG770 50 23 84 RH 75 3 4 10 Hex Nut BG770 50 43 BG770 50 83 85 FW 50 1 2 Flat Washer 20 3050M 5 1 2HP 575Vac 30 60Hz 85 LS 50 1 2 Split Flat Washer Used on BG770 50 53 91 G0122 Limit Collar 24 XXX X Relay NOT SHOWN 24 115 1 115Vac Relay 02 102 Key Switch Used on All 115Vac 10 Models 03 ABDIN 4 DIN Rail 24 230 5 208 230Vac Relay 13 8000 Metal Gasket Used on All 208 230Vac 13 8001 Rubber Grommet 10 Models 42 3608 8 Position Terminal Block 25 XXXX Fuse 74 G0120 115V Control Box 80 1904N Failsafe Board Stand Off k ia 80 207 36 1 4 x 1 4 x 1 1 4 Key 25 2010 10A RN 80 5001 3 16 x 3 16 x 3 4 Key i 80 60186 1 2 x 1 2 x 1 3 4 Key Used on BG770 50 11 2 ILLUSTRATED PARTS MODEL BG790 s UE Qi 5542 fe Cas KOSS SU WS SS Cf Operator Assembly Wishbone Arm not shown REPAIR PARTS MODEL BG790 ITEM PART DESCRIPTION ITEM PART DESCRIPTION QTY 03 8024 K 3 Pole Contactor NOT SHOWN 07 8007 Arm Hub 80 G0135 3 8 16 x 18 Threaded Rod 07 8058 Crank Link 80 G0185 1 2 x 1 2 x 2 1 2 Key 07 8063 Upper Crank 80 G0187 1 2 x 1 2 x 1 3 8 Key 07 8064 Lower Crank 80 G0188 1 2 x 1 2 x 2 Key 10 8014 Switch Bracket 80 G0211
17. ATING INSTRUCTIONS Electrical 13 Manual 13 TROUBLESHOOTING miserit danda pd e bd rnt 14 ACCESSOMES irn Se ute p 14 Primary Voltage 15 Low Voltage 15 General Reference Information 15 REPAIR PARTS Illustrated Parts Model 0770 16 Repair Parts Model 0770 17 Illustrated Parts Model 0790 18 Repair Parts Model 0790 19 MAINTENANCE Limited Bearing 20 Grease Turnbuckle 20 WIRING DIAGRAMS Single Phase Wiring 21 Three Phase Wiring Diagram 22 Control Connection 23 WARRANTY POLICY AND SERVIGE 24 IMPORTANT NOTES BEFORE attempting to install operate or maintain the operator you MUST read and fully understand this manual and follow ALL safety instructions These instructions are intended to highlight certain safety related issues These instructions are not intended to be comprehensive Because each application is unique it is the responsibility of the purchaser designer i
18. E NOTE 5 ELECTRICAL CABINET SWITCH lee eene ce e WWW A WARNING 115V OPEN HOLD OPEN ACCESSORIES LOOP LOOP SEE NOTE 5 ACODA MAX LOOP WIRE CONNECTIONS FOR FACTORY SUPPLIED PLUG IN DETECTORS ONLY 3 PHASE INCOMING LINE SEE NOTE 5 LOOP DETECTORS BY OTHERS RADIO CONTROL CONNECTIONS FOR LOOP DETECTORS CONNECTIONS FOR STANDARD NOT SUPPLIED BY THE FACTORY 3 WIRE 24 VAC RADIO CONTROL 3 3 10 3 1 6 NO NO 1 2 3 PRESENCE CONTACT OF PRESENCE CONTACT OF RECEIVER LOOP TO OPEN LOOP TO HOLD OPEN LOOP WIRES AND POWER FOR LOOP DETECTORS RADIO CONTROL WILL OPEN GATE AND REVERSE IF CLOSING IT WILL SHOULD BE DIRECTLY WIRED TO DETECTOR ITSELF REFER TO INSTRUCTIONS ACCOMPANYING DETECTOR NOT STOP OR CLOSE THE GATE NOTES 1 REMOVE THIS JUMPER TO CAUSE GATE ARM TO CLOSE IMMEDIATELY WHENEVER IT IS OPENED UNLESS A VEHICLE IS ON THE HOLD OPEN LOOP IF THIS JUMPER IS NOT REMOVED ARM WILL REMAIN OPEN UNTIL A VEHICLE ENTERS AND EXITS THE HOLD OPEN LOOP ADD JUMPER FROM TERMINAL 8 TO 9 WHENEVER CLOSE BUTTON IS USED DO NOT USE WITH HOLD OPEN LOOP 115V UTILITY OUTLET 4 AMP MAX PROVIDED ON 115V MODELS ONLY SEE REVERSE SIDE FOR INTERNAL OPERATOR WIRING DO NOT CONNECT
19. EL BG790 Opens in 11 seconds LUBRICATION Permanently lubricated bearings in motor Low temperature gear oil normally never needs replacement Gear oil is Mobil SHC 630 or equivalent MOUNTING Pad mount Model BG790 Counterweighted 17 Wishbone Arm a r 122 417 Lup to 2a 44 DIMENSIONS Installation OPERATOR WARNINGS SAFETY INSTALLATION INFORMATION 1 Vehicular gate systems provide convenience and security Gate systems are comprised of many component parts The gate Operator is only one component Each gate system is specifically designed for an individual application 2 Gate operating system designers installers and users must take into account the possible hazards associated with each individual application Improperly designed installed or maintained systems can create risks for the user as well as the bystander Gate systems design and installation must reduce public exposure to potential hazards 3 gate operator can create high levels of force in its function as a component part of a gate system Therefore safety features must be incorporated into every design Specific safety features include Gate Edges e Guards for Exposed Rollers Photoelectric Sensors e Screen Mesh Vertical Posts Instructional and Precautionary Signage 4 Install the gate operator only when a The operator is appropriate for the co
20. EVICES BRN LOOP OPEN LOOP HOLD OPEN LOOP WIRE CONNECTION FOR STANDARD CONTROL DEVICES LOOP WIRES IS CONNECTOR FOR 24V OPEN LOOP DETECTOR OPTIONAL 18 CONNECTOR FOR 24V HOLD OPEN LOOP DETECTOR 33 8 OPTIONAL EQUIPMENT 1 TRANSFORMER PRIMARY VOLTAGE SAME AS OPERATOR LINE VOLTAGE CO NTRO L WI RI N G TY PE Ad FIELD WIRING amp ADJUSTMENTS MODEL TYPES BG770 PG BG790 HBG HORSEPOWER 1 2 EHANIBERLAIN VOLTAGE PHASE 208 230 480 575V DRAWING NUMBER 01 G1015 LiftMaster au PROFESSIONAL 08 28 00 E 3 20 08 08 7165 2 WE RECOMMEND USING A DEDICATED CIRCUIT BREAKER FOR EACH OPERATOR CONTROL CONNECTION DIAGRAM IT IS IMPORTANT TO READ ALL SAFETY RULES INCLUDED IN THE INSTALLATION MANUAL BEFORE A BEGINNING INSTALLATION FAILURE TO COMPLY WITH THE SAFETY INSTRUCTIONS MAY RESULT IN SERIOUS PERSONAL INJURY OR PROPERTY DAMAGE CONTROL WIRING LINE VOLTAGE SUPPLY SWITCH DODO d SEE NOTE 1 I SEE NOTE 2 SENSING EDGE 115V OUTLET SEE NOTE 3 7 OPEN BUTTON OR OTHER OPEN CONTROL en O Q CLOSE BUTTON SEE NOTE 2 1 PHASE INCOMING LINE SE
21. H 75 3 4 10 Hex Nut Used on BG790 50 11 91 G0122 Limit Collar Used on BG790 50 23 O3 ABDIN 4 DIN Rai Used on BG790 50 53 19 onon Used on All 115Vac 10 Models 19 9024 50 Chain Master Link 10 Models 31 2712 Nylon Sensor Spacer Used on BG790 50 21 80 5001 3 16 x 3 16 x 1 3 4 Key J c0 c mN5 p pB 80 575 3 4 Flat Washer IMPORTANT SAFETY INSTRUCTIONS To reduce the risk of SEVERE INJURY or DEATH 1 READ AND FOLLOW ALL INSTRUCTIONS 2 NEVER let children operate or play with gate controls Keep the remote control away from children 3 ALWAYS keep people and objects away from the gate NO ONE SHOULD CROSS THE PATH OF THE MOVING GATE 4 Test the gate operator monthly The gate MUST reverse on contact with a rigid object or stop when an object activates the non contact sensors After adjusting the force or the limit of travel retest the gate operator Failure to adjust and retest the gate operator properly can increase the risk of INJURY or DEATH 5 Use the emergency release ONLY when the gate is not moving 6 KEEP GATES PROPERLY MAINTAINED Read the owner s manual Have a qualified service person make repairs to gate hardware The entrance is for vehicles ONLY Pedestrians MUST use separate entrance Disconnect ALL power BEFORE performing ANY maintenance 9 ALL maintenance MUST be performed by a LiftMaster professional SAVE THESE INSTRUCTIONS DESCR
22. INPUT POWER LINES TO L1 amp L2 TERMINALS POWER LINES MUST BE CONNECTED TO THE POWER SWITCH 2 3 4 5 OO LS WARRANTY POLICY AND SERVICE LIFTMASTER TWO YEAR LIMITED WARRANTY The Chamberlain Group Inc warrants to the final purchaser of this product for the structure in which this product is originally installed that it is free from defect in materials and or workmanship for a period of two years from the date of purchase The proper operation of this product is dependent on your compliance with the instructions regarding installation operation maintenance and testing Failure to comply strictly with those instructions will void this limited warranty in its entirety If during the limited warranty period this product appears to contain a defect covered by this limited warranty call 1 800 528 2806 toll free before dismantling this product Then send this product pre paid and insured to our service center for warranty repair You will be advised of shipping instructions when you call Please include a brief description of the problem and a dated proof of purchase receipt with any product returned for warranty repair Products returned to Seller for warranty repair which upon receipt by Seller are confirmed to be defective and covered by this limited warranty will be repaired or replaced at Seller s sole option at no cost to you and returned pre paid Defective parts will be repaired or replaced with new or factory rebuilt parts at Se
23. IPTION TASK 1 MONTH 6 MONTHS 12 MONTHS External Safety Systems Check for proper operation Gate Caution Systems Make sure they are present Drive Chain see notes Check for excessive slack and lubricate Sprockets and Pulleys Check for set screw tightness Gate Inspect for wear or damage Accessories Check all for proper operation Electrical Inspect all wire connections Frame Bolts Check for tightness Total Unit Inspect for wear or damage NOTES Inspection and service should always be performed anytime a malfunction is observed or suspected Limit switches may have to be reset after any major drive chain adjustments BG790 If lubricating chain use only a proper chain lube spray or a lightweight motor oil Never use grease or silicone spray When servicing please do some house cleaning of the operator and the area around the operator Pick up any debris in the area Clean the operator if needed Severe or high cycle usage will require more frequent maintenance checks It is suggested that while you are at the site take some voltage readings of the operator Using a VOM double check the incoming voltage to the operator to make sure it is within ten percent of the operator s rating While you are at the site now would be a good time to let the owner or manager know about any new items available or any safely items that could and should be added to the site gt lt X lt gt
24. LOSE limit switch 1 Loosen the set screw on the cam Then rotate the cam in the close direction so that the switch is activated when the gate arm is in its lowest position Figure 12 2 When the cam is in the desired position retighten the set screw This adjustment may have to be fine tuned after turning on power and running the unit for the first time AUXILIARY CLOSE LIMIT SWITCH The AUXILIARY CLOSE limit switch is preset at the factory If you made an adjustment to the CLOSE cam you will need to adjust the cam on the AUXILIARY CLOSE limit switch also 1 Position the AUXILIARY CLOSE cam slightly ahead of the CLOSE cam When the gate arm is on its down travel the AUXILIARY CLOSE switch will activate just before the CLOSE switch 2 When the cam is in the desired position retighten the set screw OPEN LIMIT SWITCH The OPEN limit switch is preset at the factory This setting may have to be fine tuned after running the unit for the first time 1 Loosen the OPEN cam and rotate in the open direction until the switch is activated Figure 12 2 Retighten the cam Figure 12 Open Limit Switch Close Limit Switch Auxiliary Close Limit Switch Direction CLOSE n Direction OPTIONAL ACCESSORIES CAUTION VEHICLE DETEGTORS Almost all types of vehicle detectors may be used in conjunction with both model BG770 and BG790 More than one detector may be connected to the gate and may be mounted
25. SON IS AUTHORIZED TO ASSUME FOR US ANY OTHER LIABILITY IN CONNECTION WITH THE SALE OF THIS PRODUCT Some states do not allow the exclusion or limitation of consequential incidental or special damages so the above limitation or exclusion may not apply to you This limited warranty gives you specific legal rights and you may also have other rights which vary from state to state HOW TO ORDER REPAIR PARTS OUR LARGE SERVICE ORGANIZATION SPANS AMERICA FOR INSTALLATION AND SERVICE INFORMATION CALL OUR TOLL FREE NUMBER 1 800 528 2806 www liftmaster com WHEN ORDERING REPAIR PARTS ALWAYS GIVE THE FOLLOWING INFORMATION PART NUMBER DESCRIPTION MODEL NUMBER ADDRESS ORDERS TO THE CHAMBERLAIN GROUP INC Technical Support Group 6050 Country Club Road Tucson Arizona 85706 2011 The Chamberlain Group Inc 01 G0674M All Rights Reserved
26. d residential door radio receiver has a three wire connection marked 1 2 3 If you have this type you may connect to operator terminals R3 R1 and R6 The transmitter button will open the gate if it is fully closed CONTROL If you have a standard residential 3 wire receiver and made the power connection described above you are finished with the radio connections If you want to use a radio control such as a single button you must order an optional kit P N 90 PGR Turn off power BEFORE working inside gate enclosure CARD READERS KEYPADS OR OTHER Almost all types of access control devices may be connected to models BG770 and BG790 More than one device may be connected in parallel All devices connected according to the instructions below will open the gate and reverse the gate if it is closing MOUNTING LOCATION Mount or install the access control device within sight of the gate and according to the instructions supplied with the device Some devices require their own power supply Do not use the 24 volt power in the gate to supply other devices Use either direct line voltage 115V or 230V or other external power source as required by the particular device NOTE Most access control devices have an isolated normally open output contact to connect to the gate If yours does not or if you are unsure of or unfamiliar with these terms consult the supplier of the device or a qualified gate installer CONTROL CONNECTION
27. driver or other similar tool into the hole in the shaft Rotate the shaft either clockwise or counterclockwise as necessary until the gate arm is in the desired horizontal position Retighten jam nuts MODEL BG770 TURNBUCKLE SHAFT ALIGNMENT If necessary align turnbuckle shaft with center of crank arm for lowest point of travel of pivot arm Figure 10 MODEL BG790 ADJUSTMENTS 1 If necessary rotate the pulley on the motor by hand until the upper and lower cranks are in a vertical position Figure 11 This is the lowest point of travel and should be preset in this position at the factory If the arm is not level loosen the jam nuts on both the top and bottom end of the turnbuckle shaft Rotate the shaft either clockwise or counterclockwise as necessary until the gate arm is in the desired horizontal position NOTE While the arm is raising the upper and lower cranks should travel toward the side access cover n2 Turn off power BEFORE making ANY adjustments Figure 9 Pivot Arm Jam Nut Pulley Turnbuckle Shaft Crank Arm Figure 10 Figure 11 Upper Crank Arm in Closed Position Jam Nut Lower Crank Arm in Closed Position See Note Pulley LIMIT SWITCH ADJUSTMENTS CLOSE LIMIT SWITCH The CLOSE limit switch is preset at the factory If you rotated the pulley in section Arm and Turnbuckle Shaft Adjustments you will need to reset the cam on the C
28. e contactor is suspected to be causing the problem first carefully check all wiring connections at the contacts Figure 13 Disconnect Power Using a volt ohmmeter take continuity readings across the contacts of the contactor Remove wires from one side of the contactor Place one probe on 1 and the other on 2 You should get NO continuity now press down on the contactor you should get a continuity reading Repeat this on all of the contactor s contact points If the problem is thought to be the motor it is recommended that it be replaced It is possible that the thermal overload inside the motor has overheated Wait approximately 15 minutes then try running unit NOTE Some motors have the overload built into the motor itself while other units have a separate overload in the controller Model BG770 uses a manual reset overload Figure 13 Contactor 2 4 6 14 2 4 6 14 LOW VOLTAGE CIRCUIT The first thing to check is the circuit breaker The secondary voltage must be between 22 and 30Vac This voltage can be checked at the circuit board at terminals 3 and 6 The contactor coils receive 24Vac To activate the motor in either the open or close direction There are two contactor coils one for open and one for close The limit switches are S P D T single pole double throw These limit switches tell the operator to shut off at either the full open or full close position GENERAL REFERENCE INFORMATION THE GATE
29. g see Figure 5 EXAMPLE If height to ceiling is 8 3 99 calculation is as follows 99 height to ceiling 40 height of the output shaft and concrete pad 59 Lower arm should be 59 To reduce the risk of SEVERE INJURY or DEATH ANY maintenance to the operator or in the area near the operator MUST not be performed until disconnecting the electrical power and locking out the power via the operator power switch Upon completion of maintenance the area MUST be cleared and secured at that time the unit may be returned to service Disconnecting power at the fuse box BEFORE proceeding Operator MUST be properly grounded and connected in accordance with local electrical codes NOTE The operator should be on a separate fused line of adequate capacity DO NOT install ANY wiring or attempt to run the operator without consulting the wiring diagram We recommend that you install an optional reversing edge BEFORE proceeding with the control station installation WIRING SPEGIFIGATIONS 115 230 e ALL electrical connections MUST be made by a qualified individual ALL power wiring should be on a dedicated circuit and well protected The location of the power disconnect should be visible and clearly labeled ALL power and control wiring MUST be run in separate conduit BEFORE installing power wiring or control stations be sure to follow ALL specifications and warnings described below Failure to
30. inside of the cabinet Connect the detector s according to the instructions on the wiring diagrams supplied with the gate and with the detector itself FACTORY SUPPLIED PLUG IN DETECTORS LiftMaster P N 71 416 7NH 24V PLEASE NOTE Previous models used 115V detectors P N 71 416 3NH OPEN LOOP DETECTOR 1 Snap the detector onto one set of the four board mount standoffs located on the inside of the electrical cabinet Plug the harness into the connector marked OPEN 2 Connect the two loop wires to terminals P1 and P2 as shown on the wiring diagram HOLD OPEN LOOP DETECTOR 1 Snap the detector onto one set of the four board mount standoffs located on the inside of the electrical cabinet Plug the harness into the connector marked HOLD OPEN 2 Connect the loop wires to terminals P3 and P4 as shown on the wiring diagram RADIO CONTROLS All types of standard radio controls may be used in conjunction with model BG770 and BG790 If the receiver is mounted inside of the gate enclosure a commercial coaxial antenna should be used and extended through the side of the cabinet POWER CONNECTION All radio receivers require a power supply If the receiver requires 24Vac you may power the unit from the gate control circuit To do this connect the radio receiver power wires to Terminals 3 and 6 on the control terminal strip If the receiver requires 115Vac or other power you will need a separate power source A standar
31. ller s sole option ALL IMPLIED WARRANTIES FOR THE PRODUCT INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE LIMITED IN DURATION TO THE TWO YEAR LIMITED WARRANTY PERIOD SET FORTH ABOVE AND NO IMPLIED WARRANTIES WILL EXIST OR APPLY AFTER SUCH PERIOD Some States do not allow limitations on how long an implied warranty lasts so the above limitation may not apply to you THIS LIMITED WARRANTY DOES NOT COVER NON DEFECT DAMAGE DAMAGE CAUSED BY IMPROPER INSTALLATION OPERATION OR CARE INCLUDING BUT NOT LIMITED TO ABUSE MISUSE FAILURE TO PROVIDE REASONABLE AND NECESSARY MAINTENANCE UNAUTHORIZED REPAIRS OR ANY ALTERATIONS TO THIS PRODUCT LABOR CHARGES FOR REINSTALLING A REPAIRED OR REPLACED UNIT OR REPLACEMENT OF BATTERIES THIS LIMITED WARRANTY DOES NOT COVER ANY PROBLEMS WITH OR RELATING TO THE GATE OR GATE HARDWARE INCLUDING BUT NOT LIMITED TO THE GATE ALIGNMENT OR HINGES THIS LIMITED WARRANTY ALSO DOES NOT COVER ANY PROBLEMS CAUSED BY INTERFERENCE ANY SERVICE CALL THAT DETERMINES THE PROBLEM HAS BEEN CAUSED BY ANY OF THESE ITEMS COULD RESULT IN A FEE TO YOU UNDER NO CIRCUMSTANCES SHALL SELLER BE LIABLE FOR CONSEQUENTIAL INCIDENTAL OR SPECIAL DAMAGES ARISING IN CONNECTION WITH USE OR INABILITY TO USE THIS PRODUCT IN NO EVENT SHALL SELLER S LIABILITY FOR BREACH OF WARRANTY BREACH OF CONTRACT NEGLIGENCE OR STRICT LIABILITY EXCEED THE COST OF THE PRODUCT COVERED HEREBY NO PER
32. nstaller and end user to ensure that the total gate system is safe for its intended use A WARNING Mechanical A WARNING Electrical CAUTION When you see these Safety Symbols and Signal Words on the following pages they will alert you to the possibility of SERIOUS INJURY or DEATH if you do not comply with the warnings that accompany them The hazard may come from something mechanical or from electric shock Read the warnings carefully When you see this Signal Word on the following pages it will alert you to the possibility of damage to your gate and or the gate operator if you do not comply with the cautionary statements that accompany it Read them carefully SPEGIFIGATIONS MOTOR Squirrel cage induction type 3 phase or capacitor start induction type 1 phase continuous duty 1725 RPM Horsepower is designated by second suffix of operator part number 50 1 2 Horsepower POWER Line voltage is designated by third suffix of gate part number For amp draw see motor nameplate 11 115Vac 1 Phase 60Hz 21 230Vac 1 Phase 60Hz 81 208Vac 1 Phase 60Hz 83 208Vac 3 Phase 60Hz 23 230Vac 3 Phase 60Hz 43 460Vac 3 Phase 60Hz 53 575Vac 3 Phase 60Hz OPERATION Prewired terminal strip accepts field connection of any access control device with normally open N O output contact most access control equipment and when required a separate OPEN CLOSE pushbutton provided Plug in connectors
33. nstruction and the usage class of the gate b All openings of a horizontal slide gate are guarded or screened from the bottom of the gate to a minimum of 4 1 2 m above the ground to prevent a 2 1 4 6 cm diameter sphere from passing through the openings anywhere in the gate and in that portion of the adjacent fence that the gate covers in the open position c All exposed pinch points are eliminated or guarded and guarding is supplied for exposed rollers 5 The operator is intended for installation only on gates used for vehicles Pedestrians must be supplied with a separate access opening The pedestrian access opening shall be designed to promote pedestrian usage Locate the gate such that persons will not come in contact with the vehicular gate during the entire path of travel of the vehicular gate 6 The gate must be installed in a location so that enough clearance is supplied between the gate and adjacent structures when opening and closing to reduce the risk of entrapment Swinging gates shall not open into public access areas 7 The gate must be properly installed and work freely in both directions prior to the installation of the gate operator 8 Controls intended for user activation must be located at least six feet 6 away from any moving part of the gate and where the user is prevented from reaching over under around or through the gate to operate the controls Outdoor or easily accessible controls shall have a security fea
34. oltage reading is okay from 1A then take the same voltage reading with the operator running If voltage drops below the minimum with this reading then there could be an excessive current draw somewhere or a wire AWG is too small In some cases power drops can occur at only specific times during the day or night This can be caused by increased power demands in a general area at a specific time particularly areas undergoing rapid growth ACCESSORIES Add on accessories can create many of the problems that are credited to the operator Many applications have more than one accessory item attached to the operator and some of these items even draw their power from the operator Some of the symptoms that can show up because of accessories The operator will not close The operator will not open The operator will not run The operator begins to run then stops or reverses Whenever the problem is thought to be an accessory and there are more than one connected to the operator always disconnect one accessory at a time and then test the system This will hopefully isolate which item is causing the problem If an accessory item is being used as an access control device used to open or close falls in the closed position or sends out a continuous signal The operator will hold the gate in one position until the signal from the accessory is removed In some applications the gate may begin to move then either stop or stop and reverse
35. ourself refer to Figure 3 and its suggestions for the single arm design 1 Drill four 1 2 diameter holes using the arm clamp as a template Tapering the wood as shown helps reduce the weight and allows you to reduce any warping common with long lengths of lumber 2 Cut to desired length Refer to Calculate Arm Length below 3 Finish arm with exterior grade paint and stripe with paint or adhesive backed tape as required MODEL BG790 WISHBONE ARM A 24 wishbone arm is provided as standard with every BG790 gate If a shorter arm is desired the extension may be shortened Figure 4 The maximum arm extension is 8 for a total arm length of 24 1 Cut to desired length Refer to Calculate Arm Length below 2 Finish with an exterior grade paint and stripe with paint or adhesive backed tape as required J Output Shaft T Figure 5 Arm length 4 Height to ceiling Height of the output shaft and 4 concrete pad 40 20 Figure 2 44a Conduit Entry Area 14 1 2 12 Length as needed up to 12 J A Figure 3 Material 6 x 1 Pine or Redwood 5 12 EY Length up P i Arm Extension Material 4 x 1 Pine or Redwood CALCULATE ARM LENGTH To calculate the arm length Subtract the height of the output shaft and concrete pad 40 from the height to ceilin
36. preparation Assemble the two 3 8 threaded rods to the arms for center support 4 Be prepared for gate to start when you turn the power on Turn on power and test the gate n2 hands and tools out of the gate cabinet and away from the belt and drive shaft or SERIOUS INJURY may result Be sure to DISCONNECT power while installing the arm attachment Figure 7 Wishbone Arm Arc of Travel Ensure adequate clearance for travel of arm See Detail 8 1 2 13 Hex Nuts 8 1 2 Lock Washers 4 1 2 13 x 2 1 4 Bolts Figure 8 xtansion Alm 2 1 2 13 Hex Nuts 2 1 2 Lock Washers 2 1 2 Flat Washers 2 1 2 13 x 3 Bolts Al 2 1 2 Flat Washers Wishbone Arm 3 8 16 Nut 8 3 8 16 Nuts 4 3 8 Lock Washers 8 3 8 Flat Washers 8 1 2 13 x 2 1 4 Hex Bolts 3 8 Flat Washer 2 3 8 16 x 18 Threaded Rods Arm Cla DETAIL A M gt Counterweight 4 1 2 Flat Washers 4 1 2 Lock Washers 2 1 2 13 Hex Nuts CAUTION ARM AND TURNBUCKLE SHAFT ADJUSTMENTS MODEL BG770 ADJUSTMENTS 1 If necessary rotate the pulley on the motor by hand until the crank arm on the gear reducer is perfectly aligned with the turnbuckle shaft Figure 9 This is the lowest point of the arm travel and should be preset in this position at the factory 2 If the arm is not level loosen the jam nuts at both ends of the turnbuckle shaft Insert a screw
37. service company MANUAL OPERATION ACCESS CONTROL EMERGENCY BYPASS To open the gate in an emergency remove the keyed access cover and open the electrical cabinet Flip the AUTO MANUAL switch to the MANUAL position The gate arm will remain in the up position and no other control device will have any effect until the switch is set back to the AUTO position TROUBLESHOOTING When troubleshooting one of the first things to do is try to isolate the problem area The four 4 main areas to check out are Power Accessories Operator s Primary Voltage Operator s Low Voltage POWER Always use extreme caution Some possible symptoms of power problems include The obvious one is the operator will not run The operator runs slow Circuit breakers or fuses keep tripping Motor overload keeps tripping Operator starts but then stops Using a volt ohmmeter take a voltage reading at the control transformer s primary terminals You should get a reading as follows Maximum 132 253 506 Minimum 108 207 414 Nominal Voltage 120V 230V 460V If you get a reading that does not fall into the minimum maximum area then check out your main power supply Also make sure that the operator was ordered with the proper voltage and phase Another item to check is the wire run from the power supply to the operator Double check the gauge of the wire versus the distance If the v
38. t protection functions shall be located where the transmission of the signals are not obstructed or impeded by building structures natural landscaping or similar obstruction A wireless contact sensor shall function under the intended end use conditions e One or more contact sensors shall be located on the inside and outside leading edge of a swing gate Additionally if the bottom edge of a swing gate is greater than 6 152 mm above the ground at any point in its arc of travel one or more contact sensors shall be located on the bottom edge f One or more contact sensors shall be located at the bottom edge of a vertical barrier arm PREPARATIONS CARTON INVENTORY 1 Unpack the carton checking for possible damage during shipping The arm when provided is packed separately Damage claims MUST be filed with the freight carrier 2 Check that the nameplate data inside service cover accurately matches the operator that was ordered 3 Verify that the following parts are included with the standard unit MODEL BG770 PACKING LIST PART NUMBER DESCRIPTION QTY 02 102 Open Close Push Button 07 8007 Gate Arm Hub 10 8007M Gate Bracket Key 1 2 x 1 2 x 1 3 8 Cone Point Set Screw 3 8 16 x 3 8 Hex Bolt 1 2 13 x 2 1 4 Hex Nut 1 2 13 Split Lock Washer 1 2 Owner s Manual 02 102 07 8007 10 8055 80 G0135 80 G0187 82 HN50 25 82 HN50 28 82 NH38 06 84 RH 50 84 WH 38 85 FW 38 85 FW 50 85 LS 50 01 G0674 80 G0187 8
39. ture to prevent unauthorized use 9 The Stop and or Reset if provided separately must be located in the line of sight of the gate Activation of the reset control shall not cause the operator to start 10 A minimum of two 2 WARNING SIGNS shall be installed one on each side of the gate where easily visible 11 Fora gate operator utilizing a non contact sensor a Reference owner s manual regarding placement of non contact sensor for each type of application b Care shall be exercised to reduce the risk of nuisance tripping such as when a vehicle trips the sensor while the gate is still moving c One or more non contact sensors shall be located where the risk of entrapment or obstruction exists such as the perimeter reachable by a moving gate or barrier 12 For a gate operator utilizing a contact sensor such as an edge sensor a One or more contact sensors shall be located where the risk of entrapment or obstruction exists such as at the leading edge trailing edge and post mounted both inside and outside of a vehicular horizontal slide gate b One or more contact sensors shall be located at the bottom edge of a vehicular vertical lift gate c A hard wired contact sensor shall be located and its wiring arranged so the communication between the sensor and the gate operator is not subject to mechanical damage d A wireless contact sensor such as the one that transmits radio frequency RF signals to the gate operator for entrapmen
40. ver of the unit may A WARNING be opened by removing the two wing nuts from underneath When following the procedure below the motor belt will turn inside the cabinet and the drive shaft will move during some of the steps Keep hands and tools out of the gate cabinet and away from the MODEL RE 720 STANDAR DAM belt and drive shaft or SERIOUS INJURY may result Be sure Attach arm to the arm hub flange Figure 5 to DISCONNECT power while installing the arm attachment MODEL BG770 OPTIONAL ARM Attach arm to the arm hub flange Figure 6 Figure 5 Hub Flange Gate Arm Hex Bolt 1 2 13 x 2 1 4 S Lock Washer and 1 2 13 Hex Nut Figure 6 Hex Bolt 2 Flat Washers ek Bolis See Detail A 2 Flat Washers Hex Nut Extension Arm DETAIL A Hex Nut Lift Arm See Detail B Hex Nut Threaded Rod Flat Washer Hex Bolt Threaded Spacer Flat Washer Flat Washer DETAIL Flat Washer Hex Bolt A WARNING When following the procedure below the motor belt will turn and the drive shaft will move during some of the steps Keep MODEL BG790 WISHBONE COUNTERWEIGHTED ARM Bolt counterweights to ends of arms clamps Figure 7 Use caution lifting 57 Ib weights Bend and fasten the two arms together Figure 8 If an extension arm is required sandwich the extension arm between the two halves of the wishbone arm before bolting together Refer to Arm Fabrication on page 6 for extension arm
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