Craftsman 139.53645SRT3, 139.53834SRT3 Installation Step, Attach the T-rail to the Header Bracket

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Installation Step 3

Attach the T-rail to the Header Bracket

Heade_

Brackel

Cable

Bracket

Door

•Position the opener on the garage floor below the header bracket. Use packing material as a protective base.

If the door spring is in the way you'll need help.

Have someone hold the opener securely on a temporary support to allow the T-rail to clear the spring.

•Position the cable pulley bracket against the header bracket.

•Align the bracket holes and join with a clevis pin as shown.

•Insert a ring fastener to secure.

Ring Fastener

Header Bracket

Clevis Pin

5/16"x2-3/4 ' Cable

Pulley

Bracket

Temporary

--Support

Hardware Shown Actual Size	©
o]	©
Clevis Pin
5/16" x 2 3/4'	Ring Fastener

Image 15

Contents Craftsman Start by reviewing these important safety alert symbols YoullNeed Tools Closed Position Sectional Door InstallationONE-PIECE Door Installation One-PieceDoor Without Track TO your InstallationOne-Piece Door With Track Carton Inventory Wit w edT oInstallation Hardware Safety Reversing Sensor InstallationHardware Hardware Shown Actual Size Assembly Section Pages 8Assemble the T-rail & Attach Cable Pulley Bracket Operation,noiseand/or RightWrongFasten Raft to Opener Install the Trolley on the T-railHardware Shown Actual SizeAssembly Step Install the Chain/Cable Attach the Sprocket CoverMasterFigure Tighten the Chain & Cable Trolley before adjusting chainAbovethedoor IF1 --L--JiIll One-piece door without track Pivot hardware One-piece door without track Jamb hardwareInstall the Header Bracket Fasten the Header Bracket to the WallFasten the Header Bracket to the Ceiling Attach the T-rail to the Header Bracket Sectional Door & ONE-PIECE Door with Track Position the OpenerHang the Opener L!LIIllllllllltllllllllllll Install the Door ControlDo not connect to live electrical wiring. Connect Door Control Button Fasten securely with 6ABx1-1/2 screwsInstall the Light and the Lens 32 explains how to use the door controlAttach the Emergency Release Rope and Handle Permanent Wiring Connections Electrical RequirementsRightWrong Facing the door from inside the garage Safety Reversing SystemAlternate Wall Mount Install the Safety Reversing SensorRight sides of the door Finger tighten the lock nuts Shown Actual SizeTrouble Shooting Fasten Door Bracket IIIIIII!!11111!111II!!l!ll!!!lLllllllllllllllI!l!l!l Alternative Connect Door Arm to TrolleySEC!ONA DoorS Oniy Hole AlignmentAssemble the Door Arm Adjustment Procedures for One-PieceDoorsOpen Door Adjustment Decrease UP limit Closed Door Adjustment Decrease Down limitPages 28 Adjustment Section Adjustment StepTo Adjust the Limits Adjust the UP and Down LimitsTest the Down close force Adjust the ForceHow and When to Adjust the ForcesMust reverse on striking the obstruction Adjustment StepTest The Safety Reversing Sensor Test the Safety Reverse SystemSchedule MaintenanceTo reduce the risk of severe injury or death to persons Care of Your OpenerLockout position Operation of Your Opener53000SRT Series Garage Door Openers Receiver and Remote Control ProgrammingHaving a Problem? Probable Cause and SolutionSituation Probable Cause & Solution Having a Problem?Installation Parts Repair PartsWie \Fr Opener Assembly PartsAccessories Index Product Type Part Number Model Number Part Description For the repair or replacement parts you needFor in-home major brand repair service Give the following information

139.53648SRT2, 139.53645SRT3, 139.53834SRT3, 139.53335SRT3, 139.53646SRT2 specifications

The Craftsman 139.53660SRT1, 139.53646SRT2, 139.53335SRT3, 139.53834SRT3, and 139.53645SRT3 are a series of advanced garage door openers designed for homeowners looking to enhance convenience, security, and functionality in their daily lives. Each model is equipped with cutting-edge technologies that streamline garage access while ensuring safety and durability.

One of the standout features across these models is the use of a powerful motor system, providing reliable performance for heavy garage doors. The motor's horsepower rating varies across the models, but all ensure consistent lifting strength and rapid opening and closing speeds, catering to different door weights and sizes.

In terms of security, these Craftsman models incorporate advanced encryption technologies, making unauthorized access nearly impossible. The security features include rolling code technology, which changes the access code each time the remote is used, thus preventing cloning and ensuring that only authorized users can operate the door.

These openers also prioritize ease of use. With their compatible smartphone app integration, users can remotely control and monitor their garage doors. Whether they are at home or away, users can receive notifications, check the status of their doors, and even open or close them at the touch of a button, adding an extra layer of convenience.

The installation process is also user-friendly, with many of these models featuring an easy-to-follow instruction manual. Homeowners can typically complete the installation themselves, saving time and money compared to hiring a professional. The durable construction of these openers ensures that they withstand the test of time, with many units equipped with weather-resistant materials that protect against rust and corrosion.

In addition to their functional features, the aesthetic designs of the Craftsman series are noteworthy. They fit seamlessly into a variety of garage styles, with a sleek finish that enhances overall garage appeal.

Overall, the Craftsman 139.53660SRT1, 139.53646SRT2, 139.53335SRT3, 139.53834SRT3, and 139.53645SRT3 garage door openers represent a blend of functionality, security, and user convenience. Homeowners seeking reliable, smart, and efficient solutions for managing their garage doors will find these models highly effective, offering peace of mind and ease of use in their everyday lives.