Craftsman 139.18076 Owner's Manual

Start by reviewing these important safety alert symbols2Contents PageA review of safety alert symbols.................................2You'll need tools..........................................................3Safety information regarding garage door locksand ropes ..................................................................3Testing your garage door for sticking, bindingand balance...............................................................3Illustration of sectional door installation .....................4Illustration of one-piece door installation ...................5Carton inventory..........................................................6Hardware inventory.....................................................7Assembly section - pages 8 – 11Assemble the rail & install the trolley........................8Fasten the rail to the opener.....................................9Install the idler pulley ................................................9Install chain/cable & attach the sprocket cover......10Tighten the chain ....................................................11Installation section - pages 11 – 27Installation safety instructions.................................11Determine header bracket locationSectional door .......................................................12One-piece door .....................................................13Install the header bracket .......................................14Attach the rail to header bracket ............................15Position the opener.................................................16Hang the opener .....................................................17Install the door control ............................................18Contents PageInstall the light and lens .................................................19Attach emergency release rope and handle.................19Electrical requirememts .................................................20Safety reversing sensor information..............................21Install the safety reversing sensor...........................22, 23Fasten door bracket (sectional door) ............................24Fasten door bracket (one-piece door)...........................25Connect door arm to trolley (sectional door).................26Connect door arm to trolley (one-piece door) ...............27Adjustment section - pages 28 – 30Travel limit adjustments.................................................28Force adjustments .........................................................29Test the safety reversing sensor ...................................30Test the safety reverse system ....................................30Operation safety instructions...........................................31Care of your opener.........................................................31Maintenance schedule ....................................................31Operation of your opener ................................................32Receiver and remote control programming ....................33Having a problem? ....................................................34, 35Repair parts, rail assembly..............................................36Repair parts, installation ..................................................36Repair parts, opener assembly .......................................37Accessories......................................................................38Index ................................................................................39How to order parts and service .......................................40Warranty ..........................................................................40When you see these Safety Symbols on the following pages, they will alert you to the possibility ofserious injury or death if you do not comply with the corresponding instructions. The hazard maycome 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 damageto your garage door and/or the garage door opener if you do not comply with the correspondinginstructions.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 ElectricalWARNING WARNINGCAUTIONCAUTION