Chamberlain 3255M 1/2 HP - Manual

Chamberlain 3255M 1/2 HP

Chamberlain 3255M 1/2 HP – Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.

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Table of Contents:

  • Page 2 – Installation safe; TABLE OF CONTENTS; serious injury or death; INTRODUCTION; Mechanical
  • Page 3 – Preparing your garage door; Complete the following test; Tools needed; Sectional Door
  • Page 4 – Planning; SECTIONAL DOOR INSTALLATION
  • Page 5 – Carton Inventory; INSTALLATION HARDWARE
  • Page 6 – ASSEMBLY STEP 1; Attach the Rail to the Motor Unit; To avoid installation difficulties, do not run the garage; ASSEMBLY STEP 2; the bolt previously removed from motor unit!
  • Page 7 – Tighten the Chain; During future maintenance, ALWAYS pull the; IMPORTANT INSTALLATION INSTRUCTIONS; Figure 1
  • Page 8 – INSTALLATION STEP 1; You can fasten the header bracket within 4 feet; If the total number of inches exceeds the height
  • Page 9 – INSTALLATION STEP 2; Install the Header Bracket; DO NOT install the header bracket over; CEILING HEADER BRACKET INSTALLATION
  • Page 10 – INSTALLATION STEP 3; Attach the Rail to the Header Bracket; • Position the opener on the garage floor below the
  • Page 11 – ONE-PIECE DOOR WITHOUT TRACK; INSTALLATION STEP 4; Position the Opener; SECTIONAL DOOR OR ONE-PIECE DOOR WITH
  • Page 12 – INSTALLATION STEP 5; Hang the Opener; DO NOT connect power to opener at this time.
  • Page 13 – INSTALLATION STEP 6; Install the Door Control; Figure 5
  • Page 14 – INSTALLATION STEP 7; Install the Light; Use only standard light bulbs. The use of short; INSTALLATION STEP 8; If it is necessary to cut the rope, heat seal the cut; • NEVER use emergency release handle unless garage
  • Page 15 – INSTALLATION STEP 9; Electrical Requirements; To avoid installation difficulties, do not run the opener; • Garage door installation and wiring MUST be in compliance
  • Page 16 – INSTALLATION STEP 10; Install The Protector System; required safety device MUST NOT be disabled.
  • Page 19 – Fiberglass, aluminum or lightweight steel garage doors; WILL; reinforcement BEFORE installation of door bracket.; INSTALLATION STEP 11; Fasten the Door Bracket; Many door reinforcement kits provide for direct
  • Page 20 – Please read and comply with the warnings and
  • Page 21 – INSTALLATION STEP 12; Connect Door Arm to Trolley; SECTIONAL DOORS ONLY; The groove on the straight door arm MUST
  • Page 23 – ADJUSTMENT STEP 1; Adjust the UP and DOWN Travel Limits; Run; • If the door does not open completely but opens at
  • Page 24 – ADJUSTMENT STEP 2; Adjust the Force; If anything interferes with the door’s upward travel,; HOW AND WHEN TO ADJUST THE FORCES; Reversal halfway through down travel; If the door reverses during the down (close) cycle; Do not increase the
  • Page 25 – ADJUSTMENT STEP 3; Test the Safety Reversal System; On a sectional door, make sure limit adjustments; ADJUSTMENT STEP 4; Test The Protector System
  • Page 26 – OPERATION; IMPORTANT SAFETY INSTRUCTIONS; Using Your Garage Door Opener; Programming; WARNING; SAVE THESE INSTRUCTIONS.
  • Page 27 – To Open the Door Manually; lockout feature; THE MULTI-FUNCTION DOOR CONTROL; Light feature
  • Page 28 – CARE OF YOUR OPENER; LIMIT AND FORCE ADJUSTMENTS:; Once a Month; THE REMOTE CONTROL BATTERY
  • Page 30 – Your garage door opener is programmed with self-diagnostic; Diagnostic Chart; from back each of sensor.; OR
  • Page 31 – USING THE “LEARN” BUTTON; PROGRAMMING; If this Security
  • Page 32 – To Add, Reprogram or Change a Keyless Entry PIN; This method requires two people if the Keyless Entry; To change an existing, known PIN; times
  • Page 33 – REPAIR PARTS; Rail Assembly Parts; Installation Parts; KEY PART
  • Page 34 – Motor Unit Assembly Parts
  • Page 35 – ACCESSORIES
  • Page 36 – LIFTMASTER
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The Chamberlain Group, Inc.

845 Larch Avenue

Elmhurst, Illinois 60126-1196
www.liftmaster.com

GARAGE DOOR OPENER

Models 3245M 1/3 HP

3255M 1/2 HP

3255-2M 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 panel of your opener.

®

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Summary

Page 2 - Installation safe; TABLE OF CONTENTS; serious injury or death; INTRODUCTION; Mechanical

2 Introduction 2-5 Safety symbol and signal word review . . . . . . . . . . . . . . 2Preparing your garage door . . . . . . . . . . . . . . . . . . . . . . . 3Tools needed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Planning . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 3 - Preparing your garage door; Complete the following test; Tools needed; Sectional Door

3 To prevent damage to garage door and opener:• ALWAYS disable locks BEFORE installing and operating the opener. • ONLY operate garage door opener at 120V, 60 Hz to avoid malfunction and damage. To prevent possible SERIOUS INJURY or DEATH:• ALWAYS call a trained door systems technician if garage doo...

Page 4 - Planning; SECTIONAL DOOR INSTALLATION

4 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 i...

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