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Chamberlain CG40DM Owner's Manual

1/2 hp security+ garage door opener
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GARAGE DOOR OPENER
Model CG40DM 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
aligned.
■
Periodic checks of the opener are required to ensure safe operation.
■
The model number label is located on the front panel of your opener.
The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196
www.chamberlain.com
®
is connected and properly

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Summary of Contents for Chamberlain CG40DM

  • Page 1 GARAGE DOOR OPENER Model CG40DM 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 aligned.

  • Page 2: Table Of Contents

    TABLE OF CONTENTS Introduction Safety symbol and signal word review ...2 Preparing your garage door...3 Tools needed...3 Planning ...4-5 Carton inventory...6 Hardware inventory...7 Assembly Assemble the rail and install the trolley ...8 Fasten the rail to the motor unit and install the idler pulley ...9 Install the chain/cable ...10 Tighten the chain...11...

  • Page 3: Preparing Your Garage Door

    Preparing your garage door Before you begin: • Disable locks. • Remove any ropes connected to garage door. • Complete the following test to make sure your garage door is balanced and is not sticking or binding: 1. Lift the door about halfway as shown. Release the door.

  • Page 4: Planning

    Planning Identify the type and height of your garage door. Survey your garage area to see if any of the conditions below apply to your installation. Additional materials may be required. You may find it helpful to refer back to this page and the accompanying illustrations as you proceed with the installation of your opener.
  • Page 5 Planning (Continued) ONE-PIECE DOOR INSTALLATIONS • Generally, a one-piece door does not require reinforcement. If your door is lightweight, refer to the information relating to sectional doors in Installation Step 11. • Depending on your door’s construction, you may need additional mounting hardware for the door bracket (Step 11).

  • Page 6: Carton Inventory

    Carton Inventory Your garage door opener is packaged in one carton which contains the motor unit and all parts illustrated below. Accessories will depend on the model purchased. If anything is missing, carefully check the packing material. Lighted Door Control Button with (2) screws 6ABx1-1/2"...

  • Page 7: Hardware Inventory

    Hardware Inventory Separate all hardware and group as shown below for the assembly and installation procedures. Lock Nut 1/4"-20 (2) Bolt 1/4"-20x1-3/4 (2) Carriage Bolt Wing Nut 1/4"-20x1/2" (2) 1/4"-20 (2) Lag Screw 5/16"-9x1-5/8" (2) Lag Screw 5/16"-18x1-7/8" (2) Self-Threading Screw 1/4"-14x5/8"...

  • Page 8: Assemble The Rail And Install The Trolley

    ASSEMBLY STEP 1 Assemble the Rail & Install the Trolley 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 (see illustration). The hole above this window is larger on the top of the rail than on the bottom.

  • Page 9: Fasten The Rail To The Motor Unit And Install The Idler Pulley

    ASSEMBLY STEP 2 Fasten the Rail to the Motor Unit • Insert a 1/4"-20x1-3/4 bolt into the cover protection bolt hole on the back end of the rail as shown. Tighten securely with a 1/4"-20 lock nut. Do NOT overtighten. •...

  • Page 10: Install The Chain/Cable

    ASSEMBLY STEP 4 Install the Chain/Cable 1. Pull the cable around the idler pulley and toward the trolley. 2. Connect the cable to the retaining slot on the trolley, as shown (Figure 1): • From below, push pins of master link bar up through cable link and trolley slot.

  • Page 11: Tighten The Chain

    ASSEMBLY STEP 5 Tighten the Chain • Spin the inner nut and lock washer down the trolley threaded shaft, away from the trolley. • To tighten the chain, turn outer nut in the direction shown (Figure 1). • When the chain is approximately 1/4" (6 mm) above the base of the rail at its midpoint, re-tighten the inner nut to secure the adjustment.

  • Page 12: Determine The Header Bracket Location

    INSTALLATION STEP 1 Determine the Header Bracket Location To prevent possible SERIOUS INJURY or DEATH: • Header bracket MUST be RIGIDLY fastened to structural support on header wall or ceiling, otherwise garage door might not reverse when required. DO NOT install header bracket over drywall.

  • Page 13: Install The Header Bracket

    INSTALLATION STEP 2 Install the Header Bracket You can attach the header bracket either to the wall 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).

  • Page 14: Attach The Rail To The Header Bracket

    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. •...

  • Page 15: Position The Opener

    INSTALLATION STEP 4 Position the Opener 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. • Remove foam packaging. • Raise the opener onto a stepladder. You will need help at this point if the ladder is not tall enough.

  • Page 16: Hang The Opener

    INSTALLATION STEP 5 Hang the Opener Three representative installations are shown. Yours may be different. Hanging brackets should be angled (Figure 1) to provide rigid support. On finished ceilings (Figure 2 and Figure 3), attach a sturdy metal bracket to structural supports before installing the opener.

  • Page 17: Install The Door Control

    INSTALLATION STEP 6 Install the Door Control Locate door control within sight of door at a minimum height of 5 feet (1.5 m) where small children cannot reach, and away from all moving parts of door and door hardware. 1. Strip 1/4" (6 mm) of insulation from one end of the bell wire.

  • Page 18: Install The Light And Lens

    INSTALLATION STEP 7 Install the Light and Lens INSTALL THE LIGHT • Install an A19 standard neck, 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.

  • Page 19: Electrical Requirements

    INSTALLATION STEP 9 Electrical Requirements To avoid installation difficulties, do not run the opener at this time. To reduce the risk of electric shock, your garage door opener has a grounding type plug with a third grounding pin. This plug will only fit into a grounding type outlet. If the plug doesn't fit into the outlet you have, contact a qualified electrician to install the proper outlet.

  • Page 20: Install The Protector System

    INSTALLATION STEP 10 Install The Protector System The safety reversing sensor must be connected and aligned correctly before the garage door opener will move in the down direction. IMPORTANT INFORMATION ABOUT THE SAFETY REVERSING SENSOR When properly connected and aligned, the sensor will detect an obstacle in the path of its electronic beam.
  • Page 21 INSTALLING THE BRACKETS Be sure power to the opener is disconnected. Install and align the brackets so the sensors will face each other across the garage door, with the beam no higher than 6" (15 cm) above the floor. They may be installed in one of three ways, as follows.

  • Page 22: Safety Reversing Sensors

    MOUNTING AND WIRING THE SAFETY REVERSING SENSORS • Slide a 1/4"-20x1/2" carriage bolt head into the slot on each sensor. Use wing nuts to fasten sensors to brackets, with lenses pointing toward each other across the door. Be sure the lens is not obstructed by a bracket extension (Figure 5).

  • Page 23: Fasten The Door Bracket

    INSTALLATION STEP 11 Fasten the Door Bracket Follow instructions which apply to your door type as illustrated below or on the following page. A horizontal reinforcement brace should be long enough to be secured to two or three vertical supports. A vertical reinforcement brace should cover the height of the top panel.
  • Page 24 ONE-PIECE DOORS Please read and comply with the warnings and reinforcement instructions on the previous page. They apply to one-piece doors also. • Center the door bracket on the top of the door, in line with the header bracket as shown. Mark either the left and right, or the top and bottom holes.

  • Page 25: Connect Door Arm To Trolley

    INSTALLATION STEP 12 Connect Door Arm to Trolley Follow instructions which apply to your door type as illustrated below and on the following page. SECTIONAL DOORS ONLY Make sure garage door is fully closed. Pull the emergency release handle to disconnect the outer trolley from the inner trolley.

  • Page 26: Connect The Door Arm To The Trolley

    ALL ONE-PIECE DOORS 1. Assemble the door arm, Figure 4: • Fasten the straight and curved door arm sections together to the longest possible length (with a 2 or 3 hole overlap). • With the door closed, connect the straight door arm section to the door bracket with the 5/16"x1-1/4"...

  • Page 27: Adjustment

    ADJUSTMENT STEP 1 Adjust the UP and DOWN Travel Limits Limit adjustment settings regulate the points at which the door will stop when moving up or down. To operate the opener, press the Door Control push bar. Run the opener through a complete travel cycle. •...

  • Page 28: Adjust The Force

    ADJUSTMENT STEP 2 Adjust the Force Force adjustment controls are located on the back panel of the motor unit. Force adjustment settings regulate the amount of power required to open and close the door. If the forces are set too light, door travel may be interrupted by nuisance reversals in the down direction and stops in the up direction.

  • Page 29: Test The Safety Reversal System

    ADJUSTMENT STEP 3 Test the Safety Reversal System TEST • With the door fully open, place a 1-1/2" (3.8 cm) board (or a 2x4 laid flat) on the floor, centered under the garage door. • Operate the door in the down direction. The door must reverse on striking the obstruction.

  • Page 30: Operation

    OPERATION IMPORTANT SAFETY INSTRUCTIONS To reduce the risk of SEVERE INJURY or DEATH: 1. READ AND FOLLOW ALL WARNINGS AND INSTRUCTIONS. 2. ALWAYS keep remote controls out of reach of children. NEVER permit children to operate or play with garage door control push buttons or remote controls.

  • Page 31: Using The Wall-Mounted Door Control

    Using the Wall-Mounted Door Control Press the push button to open or close the door. Press again to reverse the door during the closing cycle or to stop the door while it's opening. To Open the Door Manually To prevent possible SERIOUS INJURY or DEATH from a falling garage door: •...

  • Page 32: Care Of Your Garage Door Opener

    CARE OF YOUR OPENER LIMIT AND FORCE ADJUSTMENTS: Weather conditions may cause some minor changes in door operation requiring some re- adjustments, particularly during the first year of operation. Pages 27 and 28 refer to the limit and force adjustments. Only a screwdriver is required.

  • Page 33: Having A Problem

    HAVING A PROBLEM? 1. My door will not close and the light bulbs blink on my motor unit: The safety reversing sensor must be connected and aligned correctly before the garage door opener will move in the down direction. • Verify the safety sensors are properly installed, aligned and free of any obstructions.

  • Page 34: Diagnostic Chart

    Bell Wire Diagnostics Located On Motor Unit "Learn" Button Safety Reversing Sensor Diagnostic Chart 1 FLASH Safety reversing sensors wire open (broken or disconnected). 2 FLASHES Safety reversing sensors wire shorted or black/white wire reversed. 3 FLASHES Door control or wire shorted.

  • Page 35: Programming

    PROGRAMMING NOTICE: If this Security ✚ ® garage door opener is operated with a non-rolling code transmitter, the technical measure in the receiver of the garage door opener, which provides security against code-theft devices, will be circumvented. The owner of the copyright in the garage door opener does not authorize the purchaser or supplier of the non-rolling code transmitter to circumvent that technical measure.

  • Page 36: To Add, Reprogram Or Change A Keyless Entry Pin

    To Add, Reprogram or Change a Keyless Entry PIN NOTE: Your new Keyless Entry must be programmed to operate your garage door opener. USING THE “LEARN” BUTTON 1. Press and release the “learn” button on motor unit. The learn indicator light will glow steadily for 30 seconds.

  • Page 37: Repair Parts

    REPAIR PARTS Rail Assembly Parts Installation Parts KEY PART 41A4166 950D 10A20 29B137 41A2828 41B4494-1 41A5047-1 41A5047-2 41A5034 178B34 12B776 178B35 41A5266-1 41A5258-11 114A3589 114A3589SP Owner’s manual - Spanish PART DESCRIPTION 4A1008 Master link kit 41C5141-1 Complete trolley assembly 41A5665-2 Complete rail 144C56 Idler pulley...

  • Page 38: Motor Unit Assembly Parts

    Motor Unit Assembly Parts PART DESCRIPTION 41A5615 Chain Spreader 41C4220A Gear and sprocket assembly. Complete with: Spring washer, thrust washer, retaining ring, bearing plate, roll pins (2), drive gear and worm gear, helical gear w/retainer and grease 41A2817 Drive/worm gear kit w/grease, roll pins (2) 41B4245 Line cord...

  • Page 39: Accessories

    To order call: 1-800-528-9131. Remote Light Control: Enables homeowner to turn on a lamp, television or other appliance from their car with their garage door opener remote or from anywhere in their home with an additional Chamberlain Security✚ ® remote.

  • Page 40: Repair Parts And Service

    CHAMBERLAIN The Chamberlain Group, Inc. (“Seller”) warrants to the first retail purchaser of this product, for the residence in which this product is originally installed, that it is free from defect in materials and/or workmanship for a period of one year from the date of purchase [and that the motor is free from defect in materials and/or workmanship for a period of four years from the date of purchase].

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