Chamberlain 3850 User Manual
Garage door opener model 3850, Owner’s manual
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Table of contents
Document Outline
- Model 3850
- TABLE OF CONTENTS
- INTRODUCTION
- ASSEMBLY
- INSTALLATION
- STEP 1 Determine the Header Bracket Location
- STEP 2 Install the Header Bracket
- STEP 3 Attach the Rail to the Header Bracket
- STEP 4 Position the Opener
- STEP 5 Hang the Opener
- STEP 6 Install the Control Console
- STEP 7 Install the Battery Backup (Optional)
- STEP 8 Install the Lights
- STEP 9 Attach the Emergency Release Rope and Handle
- STEP 10 Electrical Requirements
- STEP 11 Install The Protector System®
- STEP 12 Fasten the Door Bracket
- STEP 13 Connect Door Arm to Trolley
- ADJUSTMENT
- OPERATION
- CARE OF YOUR OPENER
- PROGRAMMING
- REPAIR PARTS
- ACCESSORIES
- NOTES
- LIFTMASTER® SERVICE IS ON CALL
- HOW TO ORDER REPAIR PARTS
- WARRANTY
- Spanish