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The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196
www.liftmaster.com
®
GARAGE DOOR OPENER
Models 3265M 1/2 HP
3265M-267 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 of Contents for Chamberlain 3265

  • Page 1 The Chamberlain Group, Inc. 845 Larch Avenue Elmhurst, Illinois 60126-1196 www.liftmaster.com ® GARAGE DOOR OPENER Models 3265M 1/2 HP 3265M-267 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.
  • Page 2: Table Of Contents

    TABLE OF CONTENTS Introduction Adjustment 23-25 Safety symbol and signal word review ....2 Adjust the travel limits ......23 Preparing your garage door .
  • Page 3: Preparing Your Garage Door

    Preparing your garage door Before you begin: • Disable locks. To prevent possible SERIOUS INJURY or DEATH: • Remove any ropes connected to garage door. • ALWAYS call a trained door systems technician if garage door binds, sticks or is out of balance. An •...
  • Page 4: Planning

    Planning Identify the type and height of your garage door. Survey You may fi nd it helpful to refer back to this page and your garage area to see if any of the conditions below the accompanying illustrations as you proceed with the apply to your installation.
  • Page 5: Carton Inventory

    Carton Inventory Your garage door opener is packaged in two cartons which If anything is missing, carefully check the packing material. contain the motor unit and all parts illustrated below. Parts may be stuck in the foam. Hardware for installation is Accessories will depend on the model purchased.
  • Page 6: Assembly

    ASSEMBLY STEP 1 Attach the Rail to the Motor Unit To avoid SERIOUS damage to garage door opener, use ONLY those bolts/fasteners mounted in the top of To avoid installation diffi culties, do not run the garage the opener. door opener until instructed to do so. •...
  • Page 7: Tighten The Chain

    Figure 1 Lock ASSEMBLY STEP 3 Washer Outer Nut Inner Nut Tighten the Chain To Tighten Outer Nut • Spin the inner nut and lock washer down the trolley To Tighten Inner Nut threaded shaft, away from the trolley. • To tighten the chain, turn outer nut in the direction shown (Figure 1).
  • Page 8: Determine The Header Bracket Location

    INSTALLATION STEP 1 OPTIONAL Unfi nished Ceiling CEILING Determine the Header Bracket Location MOUNT HEADER BRACKET Header Wall Vertical Centerline To prevent possible SERIOUS INJURY or DEATH: of Garage Door • Header bracket MUST be RIGIDLY fastened to Structural structural support on header wall or ceiling, Supports otherwise garage door might NOT reverse when required.
  • Page 9: Install The Header Bracket

    Wall Mounting Holes INSTALLATION STEP 2 The nail hole is for positioning only. You Install the Header Bracket must use lag screws to mount the header You can attach the header bracket either to the wall above bracket. the garage door, or to the ceiling. Follow the instructions which will work best for your particular requirements.
  • Page 10: Attach The Rail To The Header Bracket

    INSTALLATION STEP 3 Header Wall Header Bracket Attach the Rail to the Header Bracket Chain Pulley Bracket Header Ring Bracket • Position the opener on the garage fl oor below the Fastener header bracket. Use packing material as a protective base.
  • Page 11: Hang The Opener

    INSTALLATION STEP 5 Hang the Opener To avoid possible SERIOUS INJURY from a falling garage door opener, fasten it securely to structural Three representative installations are shown. Yours may supports of the garage. Concrete anchors MUST be be different. Hanging brackets should be angled used if installing ANY brackets into masonry.
  • Page 12: Install The Door Control

    INSTALLATION STEP 6 Install the Door Control To prevent possible SERIOUS INJURY or DEATH from electrocution: Locate door control within sight of door at a minimum height of 5 feet (1.5 m) where small children cannot • Be sure power is NOT connected BEFORE installing reach, and away from moving parts of door and door door control.
  • Page 13: Install The Light

    INSTALLATION STEP 7 Install the Light To prevent possible OVERHEATING of the endpanel or light socket: • Press the release tabs on both sides of lens. Gently • DO NOT use short neck or specialty light bulbs. rotate lens back and downward until the lens hinge is in the fully open position.
  • Page 14: Electrical Requirements

    INSTALLATION STEP 9 Electrical Requirements To prevent possible SERIOUS INJURY or DEATH from electrocution or fi re: To avoid installation diffi culties, do not run the opener • Be sure power is NOT connected to the opener, and at this time. disconnect power to circuit BEFORE removing cover To reduce the risk of electric shock, your garage door to establish permanent wiring connection.
  • Page 15: Install The Protector System

    INSTALLATION STEP 10 Install The Protector System ® Be sure power is NOT connected to the garage door opener BEFORE installing the safety reversing sensor. The safety reversing sensor must be connected and To prevent SERIOUS INJURY or DEATH from a aligned correctly before the garage door opener will closing garage door: move in the down direction.
  • Page 16 INSTALLING THE BRACKETS Figure 1 DOOR TRACK MOUNT (RIGHT SIDE) Be sure power to the opener is disconnected. Install and align the brackets so the sensors will face each other Door across the garage door, with the beam no higher than 6" Track (15 cm) above the fl...
  • Page 17 Figure 5 MOUNTING AND WIRING THE SAFETY REVERSING SENSORS Mounting: Wing Nut • 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 Carriage Bolt bracket extension (Figure 5).
  • Page 18 Connect to garage door opener: • Strip 7/16" (11 mm) of insulation from each set of wires. Separate white and white/black wires suffi ciently to connect to the opener quick-connect terminals. Twist like colored wires together. Insert wires into quick-connect holes: white to white and white/black to grey (Figure 10).
  • Page 19: Fasten The Door Bracket

    INSTALLATION STEP 11 Fasten the Door Bracket Fiberglass, aluminum or lightweight steel garage doors WILL REQUIRE reinforcement BEFORE Follow instructions which apply to your door type as installation of door bracket. Contact your door illustrated below or on the following page. manufacturer for reinforcement kit.
  • Page 20 ONE-PIECE DOORS Please read and comply with the warnings and reinforcement instructions on the previous page. They apply to one-piece doors also. HARDWARE SHOWN ACTUAL SIZE • 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 21 Figure 1 Inner Trolley INSTALLATION STEP 12 Connect Door Arm to Trolley Outer Trolley Follow instructions which apply to your door type as illustrated below and on the following page. Clevis Pin SECTIONAL DOORS ONLY 5/16"x1" Ring Make sure garage door is fully closed. Pull the emergency Fastener release handle to disconnect the outer trolley from the inner trolley.
  • Page 22: Connect The Door Arm To The Trolley

    ALL ONE-PIECE DOORS Figure 5 CORRECT INCORRECT 1. Assemble the door arm, Figure 5: IMPORTANT: The groove on the straight door arm MUST Straight face away from the curved door arm (Figure 5). Straight Door Arm • Fasten the straight and curved door arm sections Door Arm Curved Curved...
  • Page 23: Adjustment

    ADJUSTMENT STEP 1 Adjust the UP and DOWN Travel Limits Without a properly installed safety reversal system, persons (particularly small children) could be Limit adjustment settings regulate the points at which the SERIOUSLY INJURED or KILLED by a closing garage door will stop when moving up or down.
  • Page 24: Adjust The Force

    ADJUSTMENT STEP 2 Adjust the Force Without a properly installed safety reversal system, Force adjustment controls are located on the back panel persons (particularly small children) could be of the motor unit. Force adjustment settings regulate the SERIOUSLY INJURED or KILLED by a closing garage door.
  • Page 25: Test The Safety Reversal System

    ADJUSTMENT STEP 3 Test the Safety Reversal System Without a properly installed safety reversal system, persons (particularly small children) could be TEST SERIOUSLY INJURED or KILLED by a closing garage • With the door fully open, place a 1-1/2" (3.8 cm) board door.
  • Page 26: Operation

    OPERATION IMPORTANT SAFETY INSTRUCTIONS WARNING WARNING To reduce the risk of SEVERE INJURY or DEATH: READ AND FOLLOW ALL WARNINGS 9. If one control (force or travel limits) is adjusted, AND INSTRUCTIONS. the other control may also need adjustment. ALWAYS keep remote controls out of reach of 10.
  • Page 27: Using The Wall-Mounted Door Control

    B) To operate one door using all three buttons on the Using the Wall-Mounted Door Control hand-held remote: THE MULTI-FUNCTION DOOR CONTROL You may program the remote to open the door with the large Press the push button to open Push button, close it with the middle or close the door.
  • Page 28: Care Of Your Garage Door Opener

    Care of Your Opener THE REMOTE CONTROL BATTERY LIMIT AND FORCE ADJUSTMENTS: Weather conditions may cause FORCE CONTROLS To prevent possible SERIOUS INJURY or DEATH: some minor changes in door • NEVER allow small children near batteries. operation requiring some re-adjustments, particularly •...
  • Page 29: Having A Problem

    Having a Problem? 1. My door will not close and the light bulbs blink on Bell Wire my motor unit: The safety reversing sensor must be connected and aligned correctly before the garage door opener will move in the down direction. •...
  • Page 30: Diagnostic Chart

    Bell Wire Installed Diagnostics Safety Reversing Located On Sensor Motor Unit Your garage door opener is programmed with self-diagnostic LED or Diagnostic capabilities. The “Learn” button/diagnostic LED will fl ash a number of times then pause signifying it has found a potential “Learn”...
  • Page 31: 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 32: 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 USING THE MULTI-FUNCTION DOOR CONTROL NOTE: This method requires two people if the Keyless Entry is already mounted outside the garage.
  • Page 33: Repair Parts

    REPAIR PARTS Rail Assembly Parts KEY PART DESCRIPTION 4A1008 Master link kit 41A4813 Chain pulley bracket 41A3489 Complete trolley assembly 1707LM One-piece rail - 7' (2.1 m) 1708LM One-piece rail - 8' (2.4 m) 1710LM One-piece rail - 10' (3 m) 41D3484 Full chain assembly 83A11-2 Rail grease...
  • Page 34: Motor Unit Assembly Parts

    Motor Unit Assembly Parts (Down) LIMIT SWITCH Brown Contact ASSEMBLY Wire Grey Wire Drive Gear Center Limit (Up) Contact Yellow Wire Contact KEY PART KEY PART DESCRIPTION DESCRIPTION 31D380 Sprocket cover 41A5525-1 Cover 41C4220A Gear and sprocket assembly 41A2818 Limit switch drive & retainer Complete with: Spring washer, 41D3452 Limit switch assembly...
  • Page 35: Accessories

    Required for a garage with NO access opener remote or from anywhere door. Enables homeowner to open in their home with an additional garage door manually from outside LiftMaster Security✚ remote. ® by disengaging trolley. Designer Buried Walnut 3-Button 373W ®...
  • Page 36: Warranty

    Tucson, Arizona 85706 For professional installation, parts and service, SERVICE INFORMATION contact your local LIFTMASTER/CHAMBERLAIN TOLL FREE NUMBER: dealer. Look for him in the Yellow Pages, or call our 1-800-528-9131 Service number for a list of dealers in your area.

This manual is also suitable for:

Security+ 3265cm-267Security+ 3130m

Table of Contents