Chamberlain BG770, BG790 manual

Installation and Maintenance Manual

Barrier Gate Operator

Models BG770 & BG790

Doc 01-G0674

Rev E

Contents

Page Contents Required Maintenance-NormalUsage_____________________________26_Toc509797299 BG770 Drawing and Parts List BG790 Drawing and Parts List 01-G1014Wiring Diagram 01-G1014Field Wiring Diagram General Product Information Specifications POWER MOTOR OVERLOAD PROTECTION OPERATION SPEED REDUCTION ARM TYPE ARM SPEED LUBRICATION Safety Instructions Before Installation During Installation After Installation Preparing the Installation Unpack Carton MODEL BG770 PACKING LIST MODEL BG790 PACKING LIST Preparing the Site WIRE SIZING CHART Preparing the Operator Installation Mounting Step 2: Arm Fabrication MODEL BG770 (SINGLE ARM) MODEL BG790 (WISHBONE ARM) Step 3: Wiring Connections Step 4: Arm Attachment MODEL BG770: STANDARD ARM MODEL BG770: OPTIONAL ARM BG790: WISHBONE COUNTERWEIGHTED ARM Step 5: Arm and Turnbuckle Shaft Adjustments MODEL BG770 ADJUSTMENTS BG770 TURNBUCKLE SHAFT ALIGNMENT MODEL BG790 ADJUSTMENTS Step 6: Limit Switch Adjustments CLOSE LIMIT SWITCH AUXILIARY CLOSE LIMIT SWITCH OPEN LIMIT SWITCH Optional Accessories Vehicle Detectors FACTORY SUPPLIED PLUG-INDETECTORS OPEN LOOP DETECTOR HOLD OPEN LOOP DETECTOR Card Readers, Keypads, or other MOUNTING LOCATION CONTROL CONNECTION Operating Instructions Electrical Operation ON/OFF POWER SWITCH Manual Operation ACCESS CONTROL “EMERGENCY” BYPASS Troubleshooting 1. Power 2. Accessories 3. Primary Voltage Circuit 4. Low Voltage Circuit General Reference Information THE GATE WIRING DIAGRAM Required Maintenance-NormalUsage LIMITED BEARING LUBRICATION GREASE TURNBUCKLE BG770 Drawing and Parts List BG770 Exploded View BG770 Parts List BG790 Drawing and Parts List BG790 Exploded View BG790 Parts List WIRING DIAGRAM CONTROL WIRING TYPE L2 FIELD WIRING 01-G1014 FIELD WIRING