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Liftmaster 1280-298LMC Manual

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Start by reviewing these important safety alert symbols
2
CONTENTS PAGE
A review of safety alert symbols ...............................2
You'll need tools........................................................3
Safety information regarding garage door locks
and ropes...............................................................3
Testing your garage door for sticking, binding
and balance ...........................................................3
llustration of sectional door installation ....................4
Illustration of one-piece door installation...................4
Carton inventory........................................................5
Hardware inventory...................................................5
Assembly Section - Pages 6 – 7
Attach T-rail to opener ............................................6
Set the belt tension .................................................6
Attach belt cap retainer...........................................7
Installation safety instructions.................................7
Installation Section - Pages 8 – 23
Determine header bracket location
Sectional door.......................................................8
One-piece door .....................................................9
Install header bracket............................................10
Attach the T-rail to header bracket........................11
Position the opener...............................................12
Hang the opener ...................................................13
Install the door control...........................................14
Install the lights and lenses...................................15
Attach manual release rope and handle ...............15
CONTENTS PAGE
Electrical requirements .........................................16
The Protector System
®
safety reversing
sensor information ................................................17
Install the safety reversing sensor ..................18, 19
Fasten door bracket (sectional door) ....................20
Fasten door bracket (one-piece door)...................21
Connect door arm to trolley (sectional door).........22
Connect door arm to trolley (one-piece door) .......23
Adjustment Section - Pages 24 – 26
Travel limit adjustments ........................................24
Force adjustments ................................................25
Test the Protector System
®
...................................26
Test the safety reverse system.............................26
Operation safety instructions ..................................27
Care of your opener................................................27
Maintenance schedule............................................27
Operation of your opener........................................28
Receiver & remote control programming ................29
Having a problem?............................................30, 31
Repair parts, rail assembly .....................................32
Repair parts, installation .........................................32
Repair parts, opener assembly...............................33
Accessories.............................................................34
Index .......................................................................35
How to order repair parts ........................................36
Warranty .................................................................36
When you see these Safety Symbols on the following pages, they will alert you to the possibility of
serious injuries or death
if you do not comply with the corresponding instructions. The hazard may
come from something mechanical or from electric shock.
Read the instructions carefully.
When you see this Safety Symbol 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 corresponding
instructions.
Read the instructions carefully.
This garage door opener is designed and tested to offer safe service provided it is installed, operated,
maintained and tested in strict accordance with the safety instructions contained in this manual.
Mechanical Electrical
WARNING
WARNING
CAUTION
2 …


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