Chamberlain 1255-2R User Manual
Owner’s manual
The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196
www.liftmaster.com
GARAGE DOOR OPENER
Models 1255-2R 1/2HP
For Residential Use Only
®
Owner’s Manual
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Please read this manual and the enclosed safety materials carefully!
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Fasten the manual near the garage door after installation.
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The door WILL NOT CLOSE unless the Protector System
®
is connected and
properly aligned.
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Periodic checks of the opener are required to ensure safe operation.
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The model number label is located on the front panel of your opener.
®
Table of contents
Document Outline
- ENGLISH OWNER’S MANUAL
- GARAGE DOOR OPENER Model 1255-2R
- TABLE OF CONTENTS
- INTRODUCTION
- ASSEMBLY
- INSTALLATION
- INSTALLATION STEP 1 Determine the Header Bracket Location
- INSTALLATION STEP 2 Install the Header Bracket
- INSTALLATION STEP 3 Attach the T-Rail to the Header Bracket
- INSTALLATION STEP 4 Position the Opener
- INSTALLATION STEP 5 Hang the Opener
- INSTALLATION STEP 6 Install the Door Control
- INSTALLATION STEP 7 Install the Light
- INSTALLATION STEP 8 Attach the Emergency Release Rope and Handle
- INSTALLATION STEP 9 Electrical Requirements
- INSTALLATION STEP 10 Install The Protector System
- INSTALLATION STEP 11 Fasten the Door Bracket
- INSTALLATION STEP 12 Connect Door Arm to Trolley
- ADJUSTMENT
- OPERATION
- CARE OF YOUR OPENER
- HAVING A PROBLEM?
- PROGRAMMING
- REPAIR PARTS
- ACCESSORIES
- LIFTMASTER SERVICE IS ON CALL/HOW TO ORDER REPAIR PARTS
- WARRANTY
- SPANISH OWNER’S MANUAL