
The Chamberlain Group, Inc.A DUCHOSSOIS ENTERPRISE845 Larch AvenueElmhurst, Illinois 60126-1196Cover Art - Liftmaster Combined Manual USA Models 5100
Assembly Step 4Install the Chain/Cable & Attach the Sprocket CoverSprocketCoverMountingPlateFront Tab SlotBack Tab SlotTop of OpenerOpenerSproc
• Spin the inner nut and lock washer down thethreaded shaft, away from the trolley.• To tighten the chain, turn outer nut in the directionshown. As yo
• Open your door to the highestpoint of travel as shown. Drawan intersecting horizontal lineon the header wall 2" abovethe high point. This heigh
Header WallVerticalCenterlineVerticalCenterline ofGarage Door2x4UnfinishedCeilingStructural Supports 2 x 4OPTIONAL CEILING MOUNTFOR HEADER BRAC
Lag Screws5/16"x18x1-7/8"HighestPoint of Travel(of Garage Door)VerticalCenterLineHeaderWallGarageDoorUPCEILING MOUNT ONLYWallMountin
HeaderBracketTemporarySupportHeader WallGarageDoorT-railINCREASE TRAVELDOWNUPCablePulleyBracketClevis Pin5/16"x2-3/4 "Ring FastenerHea
Installation Step 4Position the OpenerFollow instructions which apply to your doortype as illustrated.To prevent damage to steel, aluminum,fiberglass
Installation Step 5Hang the OpenerTwo representative installations are shown.Yours may be different. Hanging brackets shouldbe angled, Figure 1, to pr
Installation Step 6Install the Door Control 18Children operating or playing with a garagedoor opener can injure themselves or others.The garage door c
LensGuideLensTabLensSlot75 Watt(Maximum)Light BulbInstall the lights• Install a 75 watt maximum light bulb in eachsocket. The lights will turn ON
Start by reviewing these important safety alert symbols:2Contents PageA review of safety alert symbols . . . . . . . . . . . . . .2You'll need t
To reduce the risk of electric shock, your garagedoor opener has a grounding type plug with a thirdgrounding pin. This plug will onlyfit into a ground
The safety reversing sensor mustbe connectedand aligned correctly before the garage dooropener will move in the down direction. This is arequired safe
1/4 x 1-1/2"Lag Screw#10 - 32 x 3/8"Screw1/4" - 20Lock Nut#10 x 32Lock NutStaples1/4" - 20 x 1/2"Carriage BoltsIns
Invisible Light BeamProtection AreaSensorSensorConnect Wire toOpener TerminalsBell WireBell WireFinishedCeilingOPENER TERMINAL SCREWSSensorConnections
Installation Step 11Fasten Door Bracket Follow instructions which apply to your doortype as illustrated below or on page 25.To prevent damage to steel
Installation Step 12 Connect Door Arm to TrolleyFollow instructions which apply to your doortype as illustrated below and on page 27.Make sure garage
DoorBracketTop of Door(Inside Garage)Carriage Bolt5/16"-18x2-1/2"OptionalPlacementLock Washer5/16"Nut5/16"-18Horizontal an
All ONE-PIECE DoorsAssemble the Door Arm:• Fasten the straight and curved door arm sectionstogether to the longest possible length (with a 2 or3 hole
Adjustment Step 1Adjust the UP and DOWN LimitsDo not make any limit adjustments until thesafety reversing sensors are completelyinstalled.28Limit adju
Adjustment Step 2Adjust the ForceToo much force on the door will interfere withthe proper operation of the safety reversesystem. The door might not r
PliersWire CuttersClaw HammerHack SawScrewdriverAdjustable End Wrench1/2" and 7/16" Socketsand WrenchDrillTape Measure21StepladderPencil3/1
Adjustment Step 4Test the Safety Reverse SystemTest:• Place a one-inch board (or a 2x4 laid flat) on thefloor, centered under the garage door.• Operat
The remote control transmitterThe opener must learn the code of any new remotecontrol. Page 33 explains how to program yourreceiver and how to erase a
To open the doormanually:The door should be fullyclosed if possible. Pulldown on the red manualrelease handle and lift thedoor manually. Toreconnect t
Receiver and Remote Control ProgrammingChildren operating or playing with a garagedoor opener can injure themselves or others.The garage door could cl
1. Does the opener have electric power? Plug a lamp into the outlet. If it doesn't light,check the fuse box or the circuit breaker. (Some outlets
Having a Problem? (continued)Situation Probable Cause & SolutionThe opener strains ormaximum force isneeded to operatedoor:The door may be out of
LIGHTLOCK12VDC27UPCEILING MOUNT ONLY101112NOTICE13569817161541413213345567RAIL GREASENO. 83A48Repair PartsRail Assembly Parts Installation Parts 36
Repair PartsOpener Assembly Parts KEY PARTNO. NO. DESCRIPTION1 31D380 Sprocket cover 2 41C4220A Gear and sprocket assemblyComplete with:Spring washerT
1 23 45 67 89 0ENTERLIGHTLOCKAccessories Available for your Opener853CB872CB760CB740CB7702CBMulti-Function Standard SizeRemote Control:Includes v
IndexAccess Door/Outside Quick Release Accessory...4, 5Chain
4You may find it helpful to refer back to this page asyou proceed with the installation of your opener.Safety Reversing SensorHorizontal and vertical
CHAMBERLAIN SERVICEIS ON CALLOUR LARGE SERVICE ORGANIZATIONSPANS AMERICAINSTALLATION AND SERVICE INFORMATION IS ASNEAR AS YOUR TELEPHONE SIX DAYS A W
Safety Reversing SensorFINISHED CEILINGSupport bracket& fasteninghardware is required.See page 17.Slack in chain tensionis normal whengarage
Multi-FunctionRemote Control Transmitter (2)Cable PulleyBracket2-Conductor Bell Wire White & White/RedLIGHTLOCKMulti-FunctionControl PanelWireles
HardwareSeparate all hardware from the packages in the rail carton and the opener carton as shown below, for theassembly and installation procedures.L
8Assembly Step 1Assemble the T-rail & Attach the Cable Pulley BracketHex Screws5/16"-18x7/8"Cable PulleyBracketBracket & Rail Must
Hardware ShownActual SizeAssembly Step 2Install the Trolley on the T-rail• Place the opener on packing material to protectthe cover. For convenience,
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