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The Chamberlain Group, Inc. 845 Larch Avenue Elmhurst, Illinois 60126-1196 www.liftmaster.com ® GARAGE DOOR OPENER Model 3265-267 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.
TABLE OF CONTENTS Introduction Adjustment 23-25 Safety symbol and signal word review......2 Adjust the travel limits ..........23 Preparing your garage door ........3 Adjust the force ............24 Tools needed ...............3 Test the safety reversal system.........25 Planning ..............4 Test the Protector System ®...
Preparing your garage door WARNING Before you begin: To prevent possible SERIOUS INJURY OR DEATH: • Disable locks. • ALWAYS call a trained door systems technician if CAUTION • Remove any ropes connected to garage door. garage door binds, sticks, or is out of balance. An unbalanced garage door may not reverse when •...
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 installation of your opener.
Carton Inventory Your garage door opener is packaged in two cartons purchased. If anything is missing, carefully check the which contain the motor unit and all parts illustrated packing material. Parts may be stuck in the foam. below. Accessories will depend on the model Hardware for installation is also listed below.
WARNING CAUTION 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 difficulties, do not run the the opener. garage door opener until instructed to do so. •...
Figure 1 ASSEMBLY STEP 3 Lock Tighten the Chain Washer Outer Nut Inner Nut To Tighten Outer Nut • Spin the inner nut and lock washer down the trolley threaded shaft, away from the trolley. To Tighten Inner Nut • To tighten the chain, turn outer nut in the direction shown (Figure 1).
Unfinished INSTALLATION STEP 1 OPTIONAL Ceiling CEILING Determine the Header Bracket MOUNT Location HEADER BRACKET Header Wall WARNING WARNING Vertical Centerline of Garage Door To prevent possible SERIOUS INJURY or DEATH: • Header bracket MUST be RIGIDLY fastened to Structural CAUTION WARNING Supports...
INSTALLATION STEP 2 Install the Header Bracket Wall Mounting Holes You can attach the header bracket either to the wall above the garage door, or to the ceiling. Follow the CEILING MOUNT ONLY The nail hole is for instructions which will work best for your particular positioning only.
INSTALLATION STEP 3 Attach the Rail to the Header Bracket • Position the opener on the garage floor below the header bracket. Use packing material as a protective base. NOTE: If the door spring is in the way you’ll need help. Have someone hold the Header Wall opener securely on a temporary support to allow Header Bracket...
WARNING CAUTION INSTALLATION STEP 4 Position the Opener To prevent damage to garage door, rest garage door opener rail on 2x4 placed on top section of door. Follow instructions which apply to your door type as illustrated. SECTIONAL DOOR OR ONE-PIECE DOOR WITH TRACK A 2x4 laid flat is convenient for setting an ideal Rail...
WARNING INSTALLATION STEP 5 Hang the Opener To avoid possible SERIOUS INJURY from a falling garage door opener, fasten it SECURELY to structural CAUTION Three representative installations are shown. Yours supports of the garage. Concrete anchors MUST be used may be different. Hanging brackets should be angled if installing any brackets into masonry.
WARNING WARNING CAUTION WARNING 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 • Be sure power is not connected BEFORE installing door height of 5 feet (1.5 m) where small children cannot control.
WARNING INSTALLATION STEP 7 CAUTION Install the Light To prevent possible OVERHEATING of the endpanel or light socket, • Press the release tabs on both sides of lens. • DO NOT use short neck or specialty light bulbs. Gently rotate lens back and downward until the •...
WARNING WARNING INSTALLATION STEP 9 Electrical Requirements To prevent possible SERIOUS INJURY or DEATH from electrocution or fire: CAUTION WARNING To avoid installation difficulties, do not run the • Be sure power is not connected to the opener, and opener at this time. disconnect power to circuit BEFORE removing cover to To reduce the risk of electric shock, your garage door establish permanent wiring connection.
WARNING INSTALLATION STEP 10 Install The Protector System ® • Be sure power is not connected to the garage door opener BEFORE installing the safety reversing sensor. CAUTION The safety reversing sensor must be connected • To prevent SERIOUS INJURY or DEATH from a closing and aligned correctly before the garage door garage door: opener will move in the down direction.
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INSTALLING THE BRACKETS Be sure power to the opener is disconnected. Figure 1 DOOR TRACK MOUNT (RIGHT SIDE) Install and align the brackets so the sensors will face each other across the garage door, with the beam no higher than 6" (15 cm) above the floor. They may be Door installed in one of three ways, as follows.
MOUNTING AND WIRING THE SAFETY SENSORS Figure 5 • Slide a 1/4"-20x1/2" carriage bolt head into the slot Wing Nut on each sensor. Use wing nuts to fasten sensors 1/4"-20 to brackets, with lenses pointing toward each other across the door. Be sure the lens is not obstructed by a bracket extension (Figure 5).
WARNING CAUTION INSTALLATION STEP 11 Fasten the Door Bracket Fiberglass, aluminum or lightweight steel garage doors WILL REQUIRE reinforcement BEFORE installation of Follow instructions which apply to your door type as door bracket. Contact your door manufacturer for illustrated below or on the following page. reinforcement kit.
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ONE-PIECE DOORS Please read and comply with the warnings and reinforcement instructions on the previous page. They apply to one-piece doors also. • 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.
INSTALLATION STEP 12 Inner Trolley Connect Door Arm to Trolley Outer Trolley Follow instructions which apply to your door type as illustrated below and on the following page. SECTIONAL DOORS ONLY Clevis Pin 5/16"x1" Ring • Make sure garage door is fully closed. Pull the Fastener emergency release handle to disconnect the outer trolley from the inner trolley.
ALL ONE-PIECE DOORS Door Bracket Ring 1. Assemble the door arm, Figure 4: Fastener Nuts • Fasten the straight and curved door arm sections Lock 5/16"-18 together to the longest possible length (with a 2 Washers 5/16" or 3 hole overlap). Clevis Pin Straight 5/16"x1-1/4"...
WARNING ADJUSTMENT STEP 1 Adjust the UP and DOWN Travel Without a properly installed safety reversal system, Limits persons (particularly small children) could be CAUTION SERIOUSLY INJURED or KILLED by a closing garage Limit adjustment settings regulate the points at which door.
WARNING ADJUSTMENT STEP 2 Adjust the Force Without a properly installed safety reversal system, persons (particularly small children) could be CAUTION Force adjustment controls are located on the back SERIOUSLY INJURED or KILLED by a closing garage panel of the motor unit. Force adjustment settings door.
WARNING ADJUSTMENT STEP 3 Test the Safety Reversal System Without a properly installed safety reversal system, persons (particularly small children) could be CAUTION SERIOUSLY INJURED or KILLED by a closing garage TEST door. • With the door fully open, place a 1-1/2" (3.8 cm) •...
WARNING OPERATION IMPORTANT SAFETY INSTRUCTIONS WARNING To reduce the risk of SEVERE INJURY or DEATH: 1. READ AND FOLLOW ALL WARNINGS AND 8. NEVER use handle to pull garage door open or closed. INSTRUCTIONS. If rope knot becomes untied, you could fall. 2.
Using the Wall-Mounted B) To operate one door using all three buttons on the hand-held remote: Door Control You may program the remote to open the door with the large button, close THE MULTI-FUNCTION DOOR CONTROL it with the middle button, and stop Open Press the push button to open or Close...
THE REMOTE CONTROL BATTERY CARE OF YOUR OPENER WARNING LIMIT AND FORCE ADJUSTMENTS: Weather conditions may To prevent possible SERIOUS INJURY or DEATH: FORCE CONTROLS cause some minor changes • NEVER allow small children near batteries. in door operation requiring CAUTION •...
HAVING A PROBLEM? 1. My door will not close and the light bulbs blink Bell Wire on my motor unit: The safety reversing sensor must be connected and aligned correctly before the garage door opener will move in the down direction.
Bell Wire Diagnostics Installed Located On Safety Sensor Motor Unit LED or Diagnostic Your garage door opener is programmed with self-diagnostic capabilities. The “Learn” button/diagnostic "Learn" Safety Sensor Button LED will flash a number of times then pause signifying it has found a potential issue.
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.
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 1. Press and release the “learn” NOTE: This method requires two people if the Keyless button on motor unit.
REPAIR PARTS Rail Assembly Parts PART DESCRIPTION 4A1008 Master link kit 41A4813 Chain pulley bracket 41A3489 Complete trolley assembly 1707LM One-piece rail 41D3484 Full chain assembly 83A11-2 Rail grease Installation Parts KEY PART DESCRIPTION 41A5273-1 Multi-function door control panel 373LM 3 Button remote control 10A20 3V2032 Lithium battery...
Enables homeowner to open garage door manually from with their garage door opener remote or from anywhere in their home with an outside by disengaging trolley. additional LiftMaster Security✚ remote. ® 1708LM 8 Foot (2.4 m) Complete Rail:...
Tucson, Arizona 85706 www.liftmaster.com 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 1-800-528-2817 Service number for a list of dealers in your area.