The Chamberlain Group, Inc.A DUCHOSSOIS ENTERPRISE845 Larch AvenueElmhurst, Illinois 60126-1196For Residential Use Only Garage Door OpenerOwner’s Manu
Lag Screws5/16"x9x1-5/8"HighestPoint of Travel(of Garage Door)VerticalCenterLineHeaderWallGarageDoorUPCEILING MOUNT ONLYWallMounting HolesOp
Header BracketRail BracketFoam PackagingOpener Carton orTemporarySupportHeader WallGarageDoorRailClevis Pin5/16" x 2-3/4"Ring FastenerClevi
The safety reversing sensor must be connected andaligned correctly before the garage door opener willmove in the down direction. This is a required sa
#14-10x1-1/2" HHLag Screw#10-32x3/8"Screw1/4"-20Lock Nut#10x32Lock NutStaples1/4"-20x1/2"Carriage BoltsInstallation Step 4Ins
14Figure 61/4-20 x 1-1/2"Hex Bolt"C" WrapSensorwith WireWingNutIndicator Light1/4-20 x 1-1/2"Hex BoltWing NutHardware Shown Actual
Installation Step 5Position the OpenerFollow instructions which apply to your doortype as illustrated.To prevent damage to steel, aluminum, fiberglass
Installation Step 6Hang the OpenerTwo representative installations are shown. Yoursmay be different. Hanging brackets should be angled,Figure 1, to pr
Door Control PanelTerminal ScrewsREDWHITE12Installation Step 7Install the Door Control and Connect all Wiring17Children operating or playing with a ga
To reduce the risk of electric shock, your garage dooropener has a grounding type plug with a third groundingpin. This plug will only fit into a groun
Installation Step 10Install the Lights and LensInstallation Step 11Attach the Manual Release Rope and HandleDo not use the red handle to pull the door
Start by reviewing these important safety alert symbols:2Safety alert symbol review ...2Safety information and
Installation Step 12Fasten Door Bracket Follow instructions which apply to your door typeas illustrated below or on page 21.To prevent damage to steel
Horizontal and verticalreinforcement is needed forlightweight garage doors(fiberglass, aluminum, steel, door with glass panel, etc.).Header WallVertic
Installation Step 13 Connect Door Arm to TrolleyFollow instructions which apply to your door typeas illustrated below and on page 23.Make sure garage
All ONE-PIECE DoorsAssemble the Door Arm:• Fasten the straight and curved door arm sectionstogether to the longest possible length (with a 2 or 3hole
Adjustment Step 1Adjust the UP and DOWN LimitsDo not make any limit adjustments until the safetyreversing sensors are completely installed.24Limit adj
Adjustment Step 2Adjust the ForceToo much force on the door will interfere with the properoperation of the safety reverse system. The door mightnot re
Adjustment Step 4Test the Safety Reverse SystemTest• Place a one-inch board (or a 2x4 laid flat) on the floor,centered under the garage door.• Operate
The Remote Control TransmitterThe opener must learn the code of any new remotecontrol. Page 29 explains how to program your receiverand how to erase a
28Activate the opener with any of the following:• The Remote Control Transmitter. Hold push button downuntil the door starts to move.• The Door Contro
Children operating or playing with a garage door openercan injure themselves or others. The garage door couldclose and cause serious injury or death.D
3An unbalanced garage door might not reverse whenrequired and someone under the door could be seriouslyinjured or killed. If your garage door binds, s
1. Does the opener have electric power? Plug a lamp into the outlet. If it doesn't light, check thefuse box or the circuit breaker. (Some outlets
Having a Problem? (continued)Situation Probable Cause & SolutionThe door reverses for noapparent reason andopener lights don'tblink:The door
8UPCEILING MOUNT ONLY10124NOTICE657111314923LIGHTLOCK118452 376Rail Assembly PartsInstallation Parts32KEY PARTNO. NO. DESCRIPTION1 41A4795 Hardware ba
Repair Parts33wew Drive94DNUPBrownWire(Down)ContactLIMIT SWITCH ASSY.GreyWireYellowWire(Up)ContactCenter LimitContactDriveGear214571317169128141510611
LOCKLIGHT34Accessories Available For Your OpenerModel 971ACModel 974ACModel 970LMModel 1702SECURITY✚ Single-FunctionRemote ControlIncludes visor clip.
IndexAccess Door/Outside Quick Release Accessory...
© 1999, The Chamberlain Group, Inc.114A2390 All Rights Reserved Printed in MexicoACCESS MASTERSERVICE IS ON CALLOUR LARGE SERVICE ORGANIZATIONSPANS AM
4Straight DoorArm SectionCurved DoorArm SectionHeader BracketUPCEILING MOUNT ONLYSafety Reversing SensorMounting BracketWith Square Holes (2)"C&
You may find it helpful to refer back to this page as you proceed with the installation of your opener.Safety Reversing SensorHorizontal and vertical
ASSEMBLY STEP 1Fasten the Rail To the Power Unit6RailSprocketRailAssemblyTrolleyCouplingRail/Power UnitBracketLock Nuts1/4"-20Power UnitSprocketO
ASSEMBLY STEP 3Attach the Rail Brackets7IMPORTANT INSTALLATION INSTRUCTIONSTo reduce the risk of severe injury or death to persons:1. READ AND FOLLOW
• Open your door to the highest pointof travel as shown. Draw an inter-secting horizontal line on the headerwall 3" above the high point. Thish
Header WallVerticalCenterlineVerticalCenterline ofGarage Door2x4UnfinishedCeilingStructural Supports2x4Header SupportOPTIONAL CEILING MOUNTFOR HEADER
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