Chamberlain LiftMaster Professional BG770 Owner's Manual
Vehicular gate operator
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Also See for LiftMaster Professional BG770:
- Installation and maintenance manual (32 pages) ,
- Installation instructions (4 pages) ,
- Wiring diagram (4 pages)
Related Manuals for Chamberlain LiftMaster Professional BG770
Summary of Contents for Chamberlain LiftMaster Professional BG770
- Page 1 V E H I C U L A R B A R R I E R G A T E O P E R A T O R MODELS BG770 AND BG790 ARE FOR VEHICULAR PASSAGE GATES ONLY AND ARE NOT INTENDED FOR PEDESTRIAN PASSAGE GATE USE...
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Page 2: Table Of Contents
Illustrated Parts - Model BG770 ......16 Repair Parts - Model BG770......17 Illustrated Parts - Model BG790 . -
Page 3: Specifications
ARM TYPE OPEN/CLOSE pushbutton (provided). MODEL BG770: One piece type to 15' Plug-in connectors are included for addition of a loop detector to open and/or a loop detector to hold open (not provided). -
Page 4: Operator Warnings
O P E R A T O R W A R N I N G S SAFETY INSTALLATION INFORMATION 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. Gate operating system designers, installers and users must take into account the possible hazards associated with each individual application. -
Page 5: Carton Inventory
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 MODEL BG790 PACKING LIST PART NUMBER DESCRIPTION PART NUMBER DESCRIPTION... -
Page 6: Installation
5. Secure operator with four concrete anchors (not provided). ARM FABRICATION 12" MODEL BG770 (SINGLE ARM) If you are making the arm yourself, refer to Figure 3 and its suggestions for the single arm design. 3" 1. Drill four 1/2" diameter holes using the arm clamp as a... -
Page 7: Wiring Specifications
1. Open the cover of the electrical enclosure. Refer to the wiring 6. The BG770 and BG790 barrier gates will interface with almost diagram supplied inside for all electrical connections. all types of commonly used control stations, radio controls, and access control equipment. -
Page 8: Arm Attachment
Keep hands and tools out of the gate cabinet and away from the MODEL BG770: STANDARD ARM belt and drive shaft or SERIOUS INJURY may result. Be sure Attach arm to the arm hub flange (Figure 5). -
Page 9: Arm Attachment
I N S T A L L A T I O N MODEL BG790: WISHBONE COUNTERWEIGHTED ARM WARNING 1. Bolt counterweights to ends of arms clamps (Figure 7). Use caution lifting 57 lb. weights. When following the procedure below, the motor belt will turn 2. -
Page 10: Arm And Turnbuckle Shaft Adjustments
Rotate the shaft either clockwise or counterclockwise as necessary until the gate arm is in the desired horizontal position. Retighten jam nuts. Jam Nut MODEL BG770 TURNBUCKLE SHAFT ALIGNMENT Pulley If necessary, align turnbuckle shaft with center of crank arm for Turnbuckle Shaft lowest point of travel of pivot arm (Figure 10). -
Page 11: Limit Switch Adjustments
I N S T A L L A T I O N LIMIT SWITCH ADJUSTMENTS Figure 12 CLOSE LIMIT SWITCH The CLOSE limit switch is preset at the factory. If you rotated the Open Limit Switch pulley in section Arm and Turnbuckle Shaft Adjustments, you will need to reset the cam on the CLOSE limit switch. -
Page 12: Optional Accessories
All types of standard radio controls may be used in conjunction provide a permanent, durable and weatherproof connection with model BG770 and BG790. If the receiver is mounted inside of between the gate and the access device. the gate enclosure, a commercial coaxial antenna should be used and extended through the side of the cabinet. -
Page 13: Operating Instructions
O P E R A T I N G I N S T R U C T I O N S ELECTRICAL OPERATION CAUTION 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”... -
Page 14: Troubleshooting
T R O U B L E S H O O T I N G ACCESSORIES 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: Add-on accessories can create many of the problems that are •... -
Page 15: Primary Voltage Circuit
(Model BG770 uses a manual reset overload). assistance. Please when calling for assistance, make sure you have the gate operator model number, voltage, phase, horsepower... -
Page 16: Illustrated Parts - Model Bg770
I L L U S T R A T E D P A R T S - M O D E L B G 7 7 0 Operator Assembly... -
Page 17: Repair Parts - Model Bg770
Motor 80-575 3/4 Flat Washer 20-1050B-2P 1/2HP - 115/208/230Vac - 10-60Hz 80-8001 Access Panel Lock Used on: BG770-50-11, 82-HN52-18 1/2-20 x 1-1/4 Hex Head Bolt BG770-50-21, BG770-50-81 82-HN75-28 3/4-10 x 3 Hex Head Bolt 20-3050B-4E 1/2HP - 208/230/460Vac - 30-60Hz... -
Page 18: Illustrated Parts - Model Bg790
I L L U S T R A T E D P A R T S - M O D E L B G 7 9 0 Operator Assembly (Wishbone Arm not shown) -
Page 19: Repair Parts - Model Bg790
R E P A I R P A R T S - M O D E L B G 7 9 0 INDIVIDUAL PARTS INDIVIDUAL PARTS ITEM PART # DESCRIPTION ITEM PART # DESCRIPTION 03-8024-K 3 Pole Contactor NOT SHOWN 07-8007 Arm Hub 80-G0135... -
Page 20: Maintenance
After adjusting the maintenance. force or the limit of travel, retest the gate operator. 9. ALL maintenance MUST be performed by a LiftMaster Failure to adjust and retest the gate operator properly professional. can increase the risk of INJURY or DEATH. -
Page 21: Wiring Diagram
WIRING DIAGRAM (1 of 2) MOTOR CONNECTION SAME (GN) AS INCOMING POWER. FOR BG770, INTERCHANGE GREEN AND RED WIRES To protect against fire and electrocution: 115V MOTOR 1 PHASE CONNECTION • DISCONNECT power BEFORE installing INCOMING LINE 115V ONLY (GN) (SEE NOTE 3) or servicing operator. -
Page 22: Three Phase Wiring Diagram
CONTROL WIRING TYPE 1) TRANSFORMER PRIMARY VOLTAGE SAME AS OPERATOR LINE VOLTAGE 24V SECONDARY FIELD WIRING & ADJUSTMENTS 2) WE RECOMMEND USING A DEDICATED CIRCUIT BREAKER FOR EACH OPERATOR. MODEL TYPES: BG770 (PG) BG790 (HBG) HORSEPOWER: VOLTAGE/PHASE: 208/230/480/575V DRAWING NUMBER: 01-G1015... -
Page 23: Control Connection Diagram
C O N T R O L C O N N E C T I O N D I A G R A M IT IS IMPORTANT TO READ ALL SAFETY RULES INCLUDED IN THE INSTALLATION MANUAL BEFORE BEGINNING INSTALLATION. FAILURE TO COMPLY WITH THE SAFETY INSTRUCTIONS MAY RESULT IN SERIOUS PERSONAL INJURY OR PROPERTY DAMAGE. -
Page 24: Warranty Policy And Service
W A R R A N T Y P O L I C Y A N D S E R V I C E LIFTMASTER ® ONE 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 one year from the date of purchase.