Table Of Contents - Craftsman 139.53974SRT Owner's Manual

Contents Page
A review of safetyalert symbols.................................2
You'llneed tools.......................................................... 3
Safety information regardinggarage doorlocks
and ropes.................................................................. 3
Testing yourgarage door for sticking,binding
and balance............................................................... 3
Illustration of sectionaldoor installation.....................4
Illustrationof one-piecedoor installation ...................5
Carton inventory .......................................................... 6
Hardware inventory ..................................................... 7
Assembly section - pages 8 - 11
Assemblethe rail& installthe trolley ........................8
Fasten the railto the opener.....................................9
Install the idler pulley................................................9
Installchain/sable& attach the sprocketcover......10
Tightenthe chain....................................................11
Installation section - pages 11 - 27
Installation safety instructions . ................................11
Determine headerbracket location
Sectional door.......................................................12
One-piece door ..................................................... 1 3
Installthe header bracket.......................................14
Attach the railto headerbracket ............................15
Positionthe opener.................................................16
Hang the opener ..................................................... 1 7
Installthe door control............................................18
Contents Page
Installthe lightand lens.................................................19
Attach emergencyreleaseropeand handle .................19
Electricalrequirememts .................................................20
Safety reversingsensorinformation ............................. 21
InstaUthe safety reversingsensor...........................22, 23
Fasten door bracket(sectional d oor) ............................24
Fasten door bracket(one-piecedoor)...........................25
Connect doorarm to trolley(sectionaldoor).................26
Connect doorarm to trolley(one-piecedoor) ...............27
Adjustment section - pages 28 - 30
Travel limitadjustments .................................................28
Force adjustments ....:....................................................29
Test the safety reversingsensor...................................30
Test the safety reversesystem ....................................30
Operationsafety instructions . ..........................................31
Care of youropener ......................................................... 3 1
Maintenanceschedute....................................................31
Operationofyouropener ................................................32
Receiver and remotecontrolprogramming ....................33
Having a problem?.................................................... 3 4, 35
Repair parts,railassembly ..............................................36
Repair parts,installation ..................................................36
Repair parts,opener assembly .......................................37
Accassories ...................................................................... 3 8
Index ................................................................................ 3 9
How to order repairparts.................................................40
Warranty .......................................................................... 4 0
Start by reviewing these important safety alert symbols
When you see these Safety Symbols on the following pages, they will alert you to the possibility of
serious injury 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.
Mechanical
[ WARNING J
Electrical
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.
CAUTION
This garage door opener ls 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.