Chamberlain LiftMaster Professional Security+ 3265-267 User manual

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.
■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.
®

2
Introduction 2-5
Safety symbol and signal word review........................2
Preparing your garage door ........................................3
Tools needed ...............................................................3
Planning .....................................................................4
Carton inventory ..........................................................5
Hardware inventory .....................................................5
Assembly 6-7
Attach the rail to the motor unit...................................6
Attach the chain to the sprocket..................................6
Tighten the chain.........................................................7
Installation 7-22
Installation safety instructions .....................................7
Determine the header bracket location .......................8
Install the header bracket............................................9
Attach the rail to the header bracket.........................10
Position the opener ...................................................11
Hang the opener .......................................................12
Install the door control...............................................13
Install the light ...........................................................14
Attach the emergency release rope and handle .......14
Electrical requirements..............................................15
Install the Protector System®................................16-18
Fasten the door bracket.......................................19-20
Connect the door arm to the trolley .....................21-22
Adjustment 23-25
Adjust the travel limits ...............................................23
Adjust the force .........................................................24
Test the safety reversal system.................................25
Test the Protector System®........................................25
Operation 26-30
Operation safety instructions.....................................26
Using your garage door opener ................................26
Using the wall-mounted door control ........................27
To open the door manually........................................27
Care of your garage door opener..............................28
Having a problem? ....................................................29
Diagnostic chart.........................................................30
Programming 31-32
To add or reprogram a hand-held remote control .....31
To erase all codes .....................................................31
3-Button remotes.......................................................31
To add, reprogram or change
a Keyless Entry PIN ..................................................32
Repair Parts 33-34
Rail assembly parts...................................................33
Installation parts ........................................................33
Motor unit assembly parts .........................................34
Accessories 35
Repair Parts and Service 36
Warranty 36
TABLE OF CONTENTS
When you see these Safety Symbols and Signal
Words on the following pages, they will alert you to
the possibility of serious injury or death if you do
not comply with the warnings that accompany them.
The hazard may come from something mechanical
or from electric shock. Read the warnings carefully.
When you see this Signal Word on the following
pages, it will alert you to the possibility of damage to
your garage door and/or the garage door opener if
you do not comply with the cautionary statements
that accompany it. Read them carefully.
INTRODUCTION
Safety Symbol
and Signal Word Review
This garage door opener has been designed and tested to offer safe service provided it is installed, operated,
maintained and tested in strict accordance with the instructions and warnings contained in this manual.
Mechanical
Electrical

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 door binds, sticks, or is out of balance. An
unbalanced garage door may not reverse when
required.
• NEVER try to loosen, move or adjust garage door, door
springs, cables, pulleys, brackets or their hardware, all
of which are under EXTREME tension.
• Disable ALL locks and remove ALL ropes connected to
garage door BEFORE installing and operating garage
door opener to avoid entanglement.
Preparing your garage door
Before you begin:
• Disable locks.
• Remove any ropes connected to garage door.
•Complete the following test to make sure your
garage door is balanced and is not sticking or
binding:
1. Lift the door about halfway as shown. Release
the door. If balanced, it should stay in place,
supported entirely by its springs.
2. Raise and lower the door to see if there is any
binding or sticking.
If your door binds, sticks, or is out of balance, call a
trained door systems technician.
Tools needed
During assembly, installation and adjustment of the
opener, instructions will call for hand tools as
illustrated below.
Pliers
Wire Cutters
Claw Hammer
Hack Saw
Screwdriver Adjustable End Wrench
1/2" and 7/16" Sockets
and Wrench
Drill
Tape Measure
2
1
Stepladder
Pencil
3/16", 5/16" and
5/32" Drill Bits
Carpenter’s
Level (Optional)
Sectional Door
One-Piece Door

4
FINISHED CEILING
Support bracket
& fastening
hardware is required.
See page 12.
Slack in chain tension
is normal when
garage door is closed.
Safety
Reversing Sensor
Header
Wall
Access
Door
Safety
Reversing Sensor
Gap between floor and bottom of
door must not exceed 1/4" (6 mm).
Wall-
mounted
Door
Control
Motor Unit
ONE-PIECE DOOR WITHOUT TRACK
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.
Access
Door
Safety
Reversing Sensor
Safety
Reversing Sensor
Slack in chain tension is normal when
garage door is closed.
Gap between floor
and bottom of door
must not exceed 1/4" (6 mm).
ONE-PIECE DOOR WITH TRACK
Safety Reversing Sensor
Horizontal and vertical reinforcement
is needed for lightweight garage doors
(fiberglass, steel, aluminum,
door with glass panels, etc.).
See page 19 for details.
— — — — — — — —
Header Wall
Safety
Reversing
Sensor
Gap between floor and bottom of door
must not exceed 1/4" (6 mm).
Extension Spring
Torsion Spring
Access Door
OR
Slack in chain tension
is normal when
garage door is closed.
Wall-
mounted
Door
Control
Motor Unit
FINISHED CEILING
Support bracket &
fastening hardware
is required.
See page 12.
Vertical Centerline
of Garage Door
SECTIONAL DOOR INSTALLATION

5
Your garage door opener is packaged in two cartons
which contain the motor unit and all parts illustrated
below. Accessories will depend on the model
purchased. If anything is missing, carefully check the
packing material. Parts may be stuck in the foam.
Hardware for installation is also listed below.
Carton Inventory
Straight Door
Arm Section
Curved Door
Arm Section
Safety Labels
and
Literature
Header Bracket
UP
CEILINGMOUNT ONLY
Sprocket Cover
2 Conductor Bell Wire
White & White/Red
Remote Control
Transmitter Visor Clip
Door Bracket
SECURITY✚®
3-Button Remote Control
Multi-Function
Door Control Panel
LOCK
LIGHT
The Protector System
(2) Safety Reversing Sensors
(1 Sending Eye and 1 Receiving Eye)
with 2-Conductor White & White/Black
Bell Wire attached
Safety Sensor
Bracket (2)
One-Piece
T-rail
Styrofoam
Chain
Pulley Bracket
Trolley
Chain
SECURITY✚®
Keyless Entry
Motor Unit with Light Lenses
®
INSTALLATION HARDWARE
Hex Bolt 5/16"-18x7/8" (4)
Lag Screw 5/16"-9x1-5/8" (2)
Lag Screw 5/16"-18x1-7/8" (2)
Clevis Pin 5/16"x2-3/4" (1)
Clevis Pin 5/16"x1-1/4" (1)
Clevis Pin 5/16"x1" (1)
Nut 5/16"-18 (4)
Lock Washer 5/16" (4)
Screw 6ABx1-1/4" (2)
Screw 6-32x1" (2)
Self-Threading Screw 1/4"-14x5/8" (2)
Insulated Staples (30)
Ring Fastener (3)
Drywall Anchors (2)
Rail Grease
Carriage Bolt 1/4"-20x1/2" (2)
Wing Nut 1/4"-20 (2)
Rope
Handle
(2)