Craftsman 139.53645SRT3 Install the Trolley on the T-rail, Hardware Shown, Actual Size

Page 9

Assembly Step 2

I

Hardware Shown

 

 

Actual Size

Install the Trolley on the T-rail

 

 

•Attach the threaded shaft to the trolley with the lock washer and nuts as shown.

LoCk Washer

Nut

5/16 °

5/16" - 18

Lock Washer

Outer Nut 5/16"_

Troile_

Temporary Stop

Screwdriver

• As a temporary stop, insert a screwdriver into the hole in the front end of the T-rail.

• Slide the trolley assembly along the rail to the screwdriverstop.

If trolley hits against any nuts on the T-ralt, the bolts and nuts were attached from the wrong side and must be reposltioned. Review Step 1.

Assembly

Step

3

I

Fasten the

T-raft to

the Opener

•Place the opener on packing material to protect the cover. For convenience, put a supportunder the cable pulley bracket.

mounted in the top of the opener.

i Rernove the (2) 5/16"-18xl/2" washered screws

Align the holes in the back section of the T-rail with the holes in the opener.

•Fasten the rail with the (2) washered screws previously removed. Tighten securely.

Remember to use only these screws! Any other screws will cause serious damage to the opener.

•Insert a 5/16"-18x7/8" hex screw intothe cover protectionbelt hole in the T-rail as shown. Tighten securely with a 5/16" lock washer and nut,

NOTE: This screw prevents trolley over-travel. Keep a 2" minimum between the trolley and this screw when adjusting travel limits (see page 28).

Hardware Shown Actual Size

Hex

Screw

Nut

Lock Washer

_16' -

18 x 718"

5/16"- 18

5/16'

CAUTION

To fasten rail, use only those screws mounted In the top of the opener. Any other screws will cause serious damage to the opener.

Washered Screw

5/16"-18xl/2"

Hex Screw 5/16"-18X7/8'

Cover

Protection

5/16"*18

Page 8 Page 10
Image 9
Page 8 Page 10
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 Assemble the T-rail & Attach Cable Pulley Bracket Assembly Section Pages 8Operation,noiseand/or RightWrong Hardware Shown Actual SizeHardware Shown Install the Trolley on the T-railActual Size Fasten Raft to OpenerAssembly 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!LIDo not connect to live electrical wiring. Connect Install the Door ControlDoor Control Button Fasten securely with 6ABx1-1/2 screws IllllllllltllllllllllllInstall 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 SystemRight sides of the door Finger tighten the lock nuts Install the Safety Reversing SensorShown Actual Size Alternate Wall MountTrouble Shooting Fasten Door Bracket IIIIIII!!11111!111II!!l!ll!!!lLllllllllllllllI!l!l!l SEC!ONA DoorS Oniy Connect Door Arm to TrolleyHole Alignment AlternativeOpen Door Adjustment Decrease UP limit Adjustment Procedures for One-PieceDoorsClosed Door Adjustment Decrease Down limit Assemble the Door ArmTo Adjust the Limits Adjustment Section Adjustment StepAdjust the UP and Down Limits Pages 28How and When to Adjust the ForceAdjust the Forces Test the Down close forceTest The Safety Reversing Sensor Adjustment StepTest the Safety Reverse System Must reverse on striking the obstructionTo reduce the risk of severe injury or death to persons MaintenanceCare of Your Opener ScheduleLockout 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 For in-home major brand repair service For the repair or replacement parts you needGive the following information Product Type Part Number Model Number Part Description

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.
Top Page Image Contents