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The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196
www.chamberlain.com
GARAGE DOOR OPENER
Models • CG40CD 1/2 HP
• CG42CD 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
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TABLE OF CONTENTS Introduction 2-7 Adjustment 27-29 Safety symbol and signal word review........................2 Adjust the travel limits ...............................................27 Preparing your garage door ........................................3 Adjust the force .........................................................28 Tools needed...............................................................3 Test the safety reversal system.................................29 ® Planning ..........
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1 Preparing your garage door WARNING Before you begin: To prevent possible SERIOUS INJURY or DEATH: Disable locks. • ALWAYS call a trained door systems technician if 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, door WARNING springs, cab
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— — — — — — — — Planning Identify the type and height of your garage door. Do you have an access door in addition to the Survey your garage area to see if any of the garage door? If not, Model 7702C Emergency Key conditions below apply to your installation. Additional Release is required. See Accessories page. materials may be required. You may find it helpful to Look at the garage door where it meets the floor. refer back to this page and the accompanying Any gap between the
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Planning (Continued) 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 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" (6 mm). Otherwise, Depending on your
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Carton Inventory Your garage door opener is packaged in one carton Hardware for assembly and installation is shown on which contains the motor unit and all parts illustrated the next page. Save the carton and packing material below. Accessories will depend on the model until installation and adjustment is complete. purchased. If anything is missing, carefully check the packing material. Parts may be stuck in the foam. Models: CG40CD (1), CG42CD (2) Lighted Door Control Button Motor Unit with a L
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Hardware Inventory Separate all hardware and group as shown below for the assembly and installation procedures. ASSEMBLY HARDWARE Nut Lock Nut Lock Washer 3/8" (1) 1/4"-20 (2) 3/8" (1) Bolt 1/4"-20x1-3/4 (2) Master Link (2) Idler Bolt (1) Trolley Threaded Shaft (1) INSTALLATION HARDWARE Carriage Bolt Wing Nut Ring Nut 5/16"-18 (8) Handle 1/4"-20x1/2" (2) 1/4"-20 (2) Fastener (3) Lag Screw Hex Bolt Lock Washer 5/16" (7) Insulated 5/16"-9x1-5/8" (2) 5/16"-18x7/8" (4) Staples (30) Lag Screw Scre
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WARNING WARNING ASSEMBLY STEP 1 CAUTION WARNING Assemble the Rail & Install the Trolley To prevent INJURY from pinching, keep hands and fingers away from the joints while assembling the rail. To avoid installation difficulties, do not run the garage door opener until instructed to do so. The front rail has a cut out “window” at the door end 3. Place the motor unit on packing material to protect (see illustration). The hole above this window is the cover, and rest the back end of the rail on top.
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WARNING WARNING ASSEMBLY STEP 2 CAUTION WARNING Fasten the Rail to the Motor Unit To avoid SERIOUS damage to garage door opener, use ONLY those bolts/fasteners mounted in the top of Insert a 1/4"-20x1-3/4 bolt into the cover protection the opener. bolt hole on the back end of the rail as shown. Tighten securely with a 1/4"-20 lock nut. Do NOT overtighten. Hex Screws Remove the two bolts from the top of the motor 8-32x7/16" unit. Place the “U” bracket, flat side down onto the Chain motor
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ASSEMBLY STEP 4 WARNING Install the Chain/Cable To avoid possible SERIOUS INJURY to fingers from moving garage door opener: 1. Pull the cable around the idler pulley and toward • ALWAYS keep hand clear of sprocket while operating the trolley. opener. 2. Connect the cable to the retaining slot on the • Securely attach chain spreader BEFORE operating. trolley, as shown (Figure 1): WARNING From below, push pins of master link bar up Dispensing Carton through cable link and trolley slot. Leave Cha
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ASSEMBLY STEP 5 Tighten the Chain Figure 1 Trolley • Spin the inner nut and lock washer down the Outer Lock Threaded Nut Washer Shaft trolley threaded shaft, away from the trolley. To Tighten Outer Nut • To tighten the chain, turn outer nut in the direction shown (Figure 1). Inner Nut • When the chain is approximately 1/4" (6 mm) above the base of the rail at its midpoint, re-tighten To Tighten Inner Nut the inner nut to secure the adjustment. Sprocket noise can result if chain is too loose. Fi
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Unfinished OPTIONAL INSTALLATION STEP 1 Ceiling CEILING Determine the Header Bracket MOUNT FOR Location HEADER BRACKET Header Wall 2x4 WARNING Vertical Centerline of Garage Door To prevent possible SERIOUS INJURY or DEATH: 2x4 Structural • Header bracket MUST be RIGIDLY fastened to Supports 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 WARNING brac
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Wall Mount INSTALLATION STEP 2 Install the Header Bracket You can attach the header bracket either to the wall UP above the garage door, or to the ceiling. Follow the instructions which will work best for your particular requirements. Do not install the header bracket over drywall. If installing into masonry, use concrete anchors (not provided). Optional Mounting Holes WALL HEADER BRACKET INSTALLATION • Center the bracket on the vertical centerline with the bottom edge of the bracket on the hor
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INCREASE TRAVEL DOWN UP INSTALLATION STEP 3 Attach the Rail to the Header Bracket NOTE: (Optional) With some existing installations, you may re-use the old header bracket with the two plastic spacers included in the hardware bag. Place the spacers inside the bracket on each side of the rail, as illustrated. • 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
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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 • Remove foam packaging. • Raise the opener onto a stepladder. You will need help at this point if the ladder is not tall enough. • Open
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INSTALLATION STEP 5 WARNING Hang the Opener To avoid possible SERIOUS INJURY from a falling garage door opener, fasten it SECURELY to structural Three representative installations are shown. Yours 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 and Figure 3), attach a sturdy metal bracket to structural supports before installing WA
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WARNING WARNING INSTALLATION STEP 6 WARNING Install the Door Control To prevent possible SERIOUS INJURY or DEATH from electrocution: Locate door control within sight of door at a • Be sure power is not connected BEFORE installing door minimum height of 5 feet (1.5 m) where small control. children cannot reach, and away from all moving • Connect ONLY to 24 VOLT low voltage wires. parts of door and door hardware. To prevent possible SERIOUS INJURY or DEATH from a 1. Strip 1/4" (6 mm) of insulatio
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NOTICE WARNING WARNING INSTALLATION STEP 7 CAUTION WARNING Install the Light and Lens To prevent possible OVERHEATING of the endpanel or light socket, INSTALL THE LIGHT • DO NOT use short neck or specialty light bulbs. • DO NOT use halogen bulbs. Use ONLY incandescent. • 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 connected. Then the light will turn OFF. • Use standard neck Garage Door Opener bulbs for r
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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
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INSTALLATION STEP 10 WARNING ® Install The Protector System Be sure power is not connected to the garage door opener BEFORE installing the safety reversing sensor. The safety reversing sensor must be connected To prevent SERIOUS INJURY or DEATH from a closing and aligned correctly before the garage door garage door: opener will move in the down direction. • Correctly connect and align the safety reversing sensor. This required safety device MUST NOT be IMPORTANT INFORMATION ABOUT WARNING disab
