Table Of Contents; Introduction; Safety Symbol And Signal Word Review - Chamberlain LiftMaster Security+ 1256R Owner's Manual

TABLE OF CONTENTS
Introduction 2- 7
Safety symbol and signal word review ........................ 2
Preparing your garage door ........................................ 3
Tools needed ............................................................... 3
Planning .................................................................. 4-5
Carton inventory .......................................................... 6
Hardware inventory ..................................................... 7
Assembly 8-11
Fasten the rail to the motor unit .............................. 8, 9
Install the chain and the sprocket cover ..................... 8
Install the chain spreader and the chain ................... 10
Tighten the chain ....................................................... 11
Installation 11-27
Installation safety instructions .................................... 11
Determine the header bracket location ................ 12-13
Install the header bracket .......................................... 14
Attach the rail to the header bracket ......................... 15
Position the opener ................................................... 16
Hang the opener ....................................................... 17
Install the door control ............................................... 18
Install the light and lens ............................................ 19
Attach the emergency release rope and handle ....... 19
Electrical requirements .............................................. 20
Install the Protector System R_ ................................ 21-23
Fasten the door bracket ....................................... 24-25
Connect the door arm to the trolley ..................... 26-27
Adjustment 28-30
Adjust the travel limits ............................................... 28
Adjust the force ......................................................... 29
Test the safety reversal system ................................. 30
Test the Protector System R_ ........................................ 30
Operation 31-34
Operation safety instructions ..................................... 31
Using your garage door opener ................................ 31
Using the wall-mounted door control ........................ 32
To open the door manually ........................................ 32
Care of your garage door opener .............................. 33
Having a problem? .................................................... 34
Programming 35-36
To add or reprogram a hand-held remote control .....35
To erase all codes ..................................................... 35
3-Button remotes ....................................................... 35
To add, reprogram or change
a Keyless Entry PIN .................................................. 36
Repair Parts 3 7-38
Rail assembly parts ................................................... 37
Installation parts ........................................................ 37
Motor unit assembly parts ......................................... 38
Accessories 39
Repair Parts and Service
Warranty
40
40
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
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.