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®
The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196
www.chamberlaingroup.com
GARAGE DOOR OPENER
Series CG40
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 label
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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, d
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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 exceed 1/4
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Slack in chain tension is normal when garage door is closed. 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 SERIOUSLY INJURED or KILLED by a closing garage WARNING 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 Instal
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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 TM SECURITY✚ Lighted Door Control Button 1-button Remote Control M
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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 Washered Bolt Nut Carriage Bolts 5/16" - 18 x 7/8" (3) 5/16" - 18 x 1/2" (2) 5/16" - 18 (5) 1/4" - 20 x 1/2" (12) Master Link (2) (mounted in motor unit) Threaded Lock Washer Lock Nut Trolley Shaft (1) 5/16" (4) 1/4" - 20 x 7/16" (12) INSTALLATION HARDWARE Lag Screw 5/16"- 9 x 1-5/8" (2) Hex Bolt 5/16"- 18 x 7/8" (4) Nut 5/16" - 18 (4) Lock Washer
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ASSEMBLY STEP 1 Assemble the Rail and Attach the Cable 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 T-rail sections on a flat surface exactly as shown. Center sections are Carriage Bolts Lock Nut 1/4"-20x1/2" 1/4"-20 interchangeable. Front and back sections are also interchangeable for ease of assembly. 2. Insert the carriage bolts so the square bolt necks seat in the square holes in t
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ASSEMBLY STEP 2 Inner Nut Lock 5/16" Washer Install the Trolley 5/16" • Attach the trolley threaded shaft to the trolley with Outer Nut Trolley 5/16" Threaded the lock washer and nuts as shown. Shaft • As a temporary stop, insert a screwdriver into the Trolley hole in the front end of the T-rail. • Slide the trolley assembly along the rail to the screwdriver stop. NOTE: If trolley hits against any nuts on the T-rail, the bolts and nuts were attached from the wrong side and must be repositioned.
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ASSEMBLY STEP 4 WARNING WARNING Install the Chain/Cable To avoid possible SERIOUS INJURY to fingers from and Attach the Sprocket Cover moving garage door opener: CAUTION WARNING • ALWAYS keep hand clear of sprocket while operating INSTALLING THE CHAIN/CABLE opener. • Securely attach sprocket cover BEFORE operating. 1. Pull the cable loop from Leave Chain & Cable Inside the carton and fasten it Dispensing to the trolley with a Carton to Prevent Kinking master link from the hardware bag (see Fig
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ASSEMBLY STEP 5 Tighten the Chain and Cable • Spin the inner nut and lock washer down the Lock trolley threaded shaft, away from the trolley. Inner Nut Outer Nut Washer •To tighten the chain, turn outer nut in the direction To Tighten Outer Nut shown. AS YOU TURN THE NUT, KEEP THE CHAIN FROM TWISTING. To Tighten Inner Nut • When the chain is approximately 1/2" above the base of the T-rail at its midpoint, re-tighten the inner nut to secure the adjustment. Sprocket noise can result if chain is ei
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INSTALLATION STEP 1 Finished Vertical Determine the Header Bracket 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 1. Close the door and mark the inside vertical Ceiling 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 the header bracket on the ceiling. See page 14. 2x4 2x4 If you need to install the header bracket on a 2x4 OPTIONAL (on wall or ceiling), use lag screws (not provided) CEILING MOUNT to securely fasten the 2x4 to
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INSTALLATION STEP 2 Install the Header Bracket You can attach the header bracket either to the wall Wall Mounting Holes above the garage door, or to the ceiling. Follow the CEILING MOUNT ONLY instructions which will work best for your particular The nail hole is for positioning only. requirements. Do not install the header bracket You must use lag screws UP over drywall. If installing into masonry, use to mount the header bracket. concrete anchors (not provided). WALL HEADER BRACKET INSTALLAT
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INCREASE TRAVEL DOWN UP INSTALLATION STEP 3 Attach the T-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 Header Wall a temporary support to allow the rail to clear the spring. Header Bracket • Position the rail bracket against the header Cable bracket. Pulley • Align the bracket holes and join with a clevis pi
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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 2x4 T-Rail laid flat door-to-T-rail distance. • Raise the opener onto a stepladder. You will need help at this point if the ladder is not tall enough. • Open the doo
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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 WARNING supports of the garage. Concrete anchors MUST be used 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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WARNING WARNING INSTALLATION STEP 6 CAUTION WARNING Install the Door Control To prevent possible SERIOUS INJURY or DEATH from electrocution: Locate the 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 control. cannot reach, and away from all moving parts of the • Connect ONLY to 24 VOLT low voltage wires. door and door hardware. To prevent possible SERIOUS INJURY or DEATH from a 1. Strip 1/4" of insu
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NOTICE INSTALLATION STEP 7 Install the Light and Lens INSTALL THE LIGHT • Install a 75 watt maximum light bulb in the socket. The light will turn ON and remain lit for approximately 4-1/2 minutes when power is Panel Screw connected. Then the light will turn OFF. Light Lens • Use standard neck Garage Door Opener bulbs for Lens Slot replacement. NOTE: Use only standard light bulbs. The use of 75 Watt Max. short neck or specialty light bulbs may overheat the Light Bulb Lens Tab endpanel or light so
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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
