Chamberlain CG40 Series User Manual

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 is located on the front end panel of your opener.
®

Chamberlain CG40 Series Specifications

General

Type	Chain Drive
Horsepower	1/2 HP
Warranty	Lifetime motor warranty
Drive Type	Chain
Remote Controls Included	2
Security+ 2.0	Yes
Battery Backup	No
Drive System	Chain
Safety Features	photoelectric sensors
Remote Control	Yes
Voltage	120V

Summary

Introduction to Safety Symbols

Safety Symbol and Signal Word Review

Explains the meaning and importance of safety symbols and signal words used throughout the manual.

Assembly Steps

Step 1: Assemble Rail and Attach Pulley Bracket

Step 2: Install the Trolley

Step 3: Fasten T-Rail to Motor Unit

Step 4: Install Chain/Cable and Sprocket Cover

Step 5: Tighten Chain and Cable

Important Installation Instructions

Presents critical safety warnings and instructions before proceeding with installation.

Installation Procedures

Step 1: Determine Header Bracket Location

Guides on finding and marking the correct location for the header bracket.

Step 2: Install the Header Bracket

Details how to mount the header bracket to the wall or ceiling.

Step 3: Attach T-Rail to Header Bracket

Guides on connecting the assembled T-rail to the header bracket.

Step 4: Position the Opener

Explains how to correctly position the opener unit relative to the door.

Step 5: Hang the Opener

Details on securely hanging the opener unit to structural supports.

Step 6: Install the Door Control

Guides on installing the wall-mounted door control button and wiring.

Step 8: Attach Emergency Release Rope and Handle

Step 9: Electrical Requirements

Outlines electrical requirements and safety precautions for connecting power.

Step 10: Install The Protector System®

Guides on installing the safety reversing sensor system.

Installing the Brackets

Mounting and Wiring the Safety Sensors

Aligning the Safety Sensors

Instructions for properly aligning the safety reversing sensors.

Troubleshooting the Safety Sensors

Step 11: Fasten the Door Bracket

Guides on attaching the door bracket to the garage door panel.

Step 12: Connect Door Arm to Trolley

Adjustment Procedures

Step 1: Adjust UP and DOWN Travel Limits

Guides on setting the full open and closed limits for door travel.

Step 2: Adjust the Force

Details how to adjust the force settings for opening and closing the door.

Step 3: Test the Safety Reversal System

Provides instructions for testing the safety reversal system.

Step 4: Test the Protector System®

Guides on testing the functionality of the Protector System® (safety sensors).

Operation and Manual Control

Important Safety Instructions

Crucial safety warnings and guidelines for operating the garage door opener.

Using Your Garage Door Opener

To Open the Door Manually

Opener Care and Troubleshooting

Problem Diagnosis and Solutions

Guides users through common issues, including unexpected operation and sensor errors.

Programming Your Opener

Add Additional Hand-held Remote Control

Add or Change a Keyless Entry PIN