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®
The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196
www.chamberlaingroup.com
®
GARAGE DOOR OPENER
Model WD912K
1/2 HP
For Residential Use Only
Owner’s Manual
■ Please read this manual and the enclosed safety materials carefully!
■ Fasten the manual near the garage door after installation.
®
■ The door WILL NOT CLOSE unless The Protector System is connected
and properly aligned.
■ Periodic checks of the opener are required to ensure safe operation.
■ The model number lab
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TABLE OF CONTENTS Introduction 2-7 Adjustment 28-30 Safety symbol and signal word review........................2 Adjust the travel limits ...............................................28 Preparing your garage door ........................................3 Adjust the force .........................................................29 Tools needed...............................................................3 Test the safety reversal system.................................30 ® Planning ..........
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1 Preparing your garage door WARNING WARNING Before you begin: To prevent possible SERIOUS INJURY OR DEATH: • Disable locks. •ALWAYS call a trained door systems technician if CAUTION WARNING • Remove any ropes connected to garage door. garage door binds, sticks, or is out of balance. An unbalanced garage door may not reverse when • Complete the following test to make sure your required. garage door is balanced and is not sticking or binding: • NEVER try to loosen, move or adjust garage door, do
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— — — — — — — — • Do you have an access door in addition to the Planning garage door? If not, Model 7702CB Outside Quick Identify the type and height of your garage door. Release is required. See Accessories page. Survey your garage area to see if any of the • Look at the garage door where it meets the floor. conditions below apply to your installation. Additional Any gap between the floor and the bottom of the materials may be required. You may find it helpful to door must not ex
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Planning (Continued) WARNING WARNING ONE-PIECE DOOR INSTALLATIONS Without a properly working safety reversal system, persons (particularly small children) could be • Generally, a one-piece door does not require CAUTION WARNING SERIOUSLY INJURED or KILLED by a closing garage reinforcement. If your door is lightweight, refer to door. the information relating to sectional doors in • The gap between the bottom of the garage door and Installation Step 11. the floor MUST NOT exceed 1/4". Otherwise, th
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Carton Inventory Your garage door opener is packaged in one carton foam. Hardware for assembly and installation is which contains the motor unit and the parts illustrated shown on the next page. Save the carton and below. Note that accessories will depend on the packing material until installation and adjustment is model purchased. If anything is missing, carefully complete. check the packing material. Parts may be stuck in the 2-Conductor Bell Wire SECURITY✚ White & White/Red Belt Pulley Multi-
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NOTICE Hardware Inventory Separate all hardware and group as shown below for the assembly and installation procedures. ASSEMBLY HARDWARE Hex Bolt Nut Carriage Bolt Spring /Trolley Nut (1) Washered Bolt 5/16"-18x7/8" (4) 5/16"-18 (4) 1/4"-20x1/2" (12) 5/16"-18x1/2" (2) (mounted in motor unit) Master Link (2) Lock Washer Lock Nut Trolley Clip (1) Trolley Threaded Shaft (1) 5/16" (4) 1/4"-20x7/16" (12) INSTALLATION HARDWARE Handle Lag Screw Rail Grease Hex Bolt 5/16"-9x1-5/8" (2) 5/16"-18x7/8" (4)
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ASSEMBLY STEP 1 Assemble the Rail and Attach the Belt Pulley Bracket HARDWARE SHOWN ACTUAL SIZE To avoid installation difficulties, do not run the garage door opener until instructed to do so. 1. Align the four rail sections on a flat surface exactly as shown. Center sections are interchangeable. Carriage Bolts Lock Nut Front and back sections are also interchangeable 1/4"-20x1/2" 1/4"-20 for ease of assembly. 2. Insert the carriage bolts so the square bolt necks seat in the square holes in the
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ASSEMBLY STEP 2 Install the Trolley Trolley • As a temporary stop, insert a screwdriver into the hole in the front end of the rail. • Slide the trolley assembly along the rail to the screwdriver stop. NOTE: If trolley hits against any nuts on the rail, the bolts and nuts were attached from the wrong side and must be repositioned. Review Assembly Step 1. • Insert a 5/16"-18x7/8" hex bolt into the trolley stop hole in the rail as shown. Tighten securely with a 5/16" lock washer and nut. This bolt
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ASSEMBLY STEP 4 WARNING WARNING Install the Belt and Set the Tension To avoid possible SERIOUS INJURY to fingers from moving garage door opener: CAUTION WARNING INSTALLING THE BELT •ALWAYS keep hand clear of sprocket while operating opener. 1. Drop the notched side of the trolley clip into the retaining slot on top of the trolley (Figure 1). •Securely attach sprocket cover BEFORE operating. 2. Grasp the clip connector at the end of the belt and slip it through the belt pulley bracket from behind
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ASSEMBLY STEP 5 WARNING WARNING Attach the Belt Cap Retainer To avoid possible SERIOUS INJURY to fingers from moving garage door opener: • Position the belt cap retainer over the motor unit CAUTION WARNING •ALWAYS keep hand clear of sprocket while sprocket so the two holes in cap align with the two operating opener. holes in mounting plate. Attach with 8x3/8" hex • Securely attach sprocket cover BEFORE operating. screws provided. You have now finished assembling your garage door opener. Please r
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INSTALLATION STEP 1 Finished Determine the Header Bracket Vertical Ceiling Centerline Location Header Structural 2x4 Wall Supports WARNING WARNING To prevent possible SERIOUS INJURY or DEATH: • Header bracket MUST be RIGIDLY fastened to CAUTION WARNING structural support on header wall or ceiling, otherwise garage door might not reverse when required. DO NOT install header bracket over drywall. • Concrete anchors MUST be used if mounting header Vertical bracket or 2x4 into masonry. Centerline •
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ONE-PIECE DOOR WITHOUT TRACK Unfinished Ceiling 1. Close the door and mark the inside vertical centerline of your garage door. Extend the line Structural onto the header wall above door, as shown. Supports Header Wall Vertical If headroom clearance is minimal, you can install Centerline 2x4 the header bracket on the ceiling. See page 14. 2x4 If you need to install the header bracket on a 2x4 (on wall or ceiling), use lag screws (not provided) OPTIONAL to securely fasten the 2x4 to structural sup
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INSTALLATION STEP 2 Install the Header Bracket Wall Mounting Holes You can attach the header bracket either to the wall CEILING MOUNT ONLY above the garage door, or to the ceiling. Follow the The nail hole is for positioning only. instructions which will work best for your particular You must use lag screws UP requirements. Do not install the header bracket to mount the header bracket. over drywall. If installing into masonry, use concrete anchors (not provided). WALL HEADER BRACKET INSTALLATI
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INSTALLATION STEP 3 Attach the Rail to the Header Bracket • Position the opener on the garage floor below the header bracket. Use packing material as a protective base. NOTE: If the door spring is in the way you’ll need help. Have someone hold the opener securely on a temporary support to allow the rail to clear the spring. • Position the rail bracket against the header Header Wall bracket. • Align the bracket holes and join with a clevis pin Header Bracket as shown. • Insert a ring fastener to
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WARNING WARNING INSTALLATION STEP 4 CAUTION WARNING Position the Opener To prevent damage to garage door, rest garage door opener rail on 2x4 placed on top section of door. Follow instructions which apply to your door type as illustrated. SECTIONAL DOOR OR ONE-PIECE DOOR WITH TRACK A 2x4 laid flat is convenient for setting an ideal door-to-rail distance. Rail • Raise the opener onto a stepladder. You will need help at this point if the ladder is not tall enough. • Open the door all the way and
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INSTALLATION STEP 5 WARNING WARNING Hang the Opener To avoid possible SERIOUS INJURY from a falling garage door opener, fasten it SECURELY to structural Two representative installations are shown. Yours CAUTION supports of the garage. Concrete anchors MUST be used WARNING may be different. Hanging brackets should be angled if installing any brackets into masonry. (Figure 1) to provide rigid support. On finished ceilings (Figure 2), attach a sturdy metal bracket to structural supports before inst
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LIGHT LIGHT LIGHT WARNING WARNING INST CAUTION ALLATION STEP 6 WARNING Install the Door Control To prevent possible SERIOUS INJURY or DEATH from electrocution: Locate door control within sight of the door at a •Be sure power is not connected BEFORE installing door minimum height of 5 feet where small children cannot control. reach, and away from moving parts of the door and • Connect ONLY to 24 VOLT low voltage wires. door hardware. The installation surface must be To prevent possible SERIOUS I
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NOTICE INSTALLATION STEP 7 100 Watt (Max) Standard Light Bulb Install the Lights • Press the release tabs on both sides of lens. Release Tab Gently rotate lens back and downward until the lens hinge is in the fully open position. Do not remove the lens. • Install up to a 100 watt maximum light bulb in each socket. The lights will turn ON and remain lit for approximately 4-1/2 minutes when power is connected. Then the lights will turn OFF. Lens • Reverse the procedure to close the lens. Hinge 10
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INSTALLATION STEP 9 WARNING WARNING Electrical Requirements To prevent possible SERIOUS INJURY or DEATH from electrocution or fire: To avoid installation difficulties, do not run the CAUTION WARNING • Be sure power is not connected to the opener, and opener at this time. disconnect power to circuit BEFORE removing cover to To reduce the risk of electric shock, your garage door establish permanent wiring connection. opener has a grounding type plug with a third • Garage door installation and wiri
