Craftsman 139.53645SRT3 Adjustment Procedures for One-PieceDoors, Assemble the Door Arm

Page 27

Assemble the Door Arm:

 

• Fasten the straight and curved door arm sections

Door

together to the longest possible length (with a 2 or

 

Ring

Lock

Nuts

3 hole overlap).

•With the door closed, connect the straight door arm

section

to the door bracket with the 5/16"x1-1/4"

Cle_i,Pin

clevis pin.

sit6.xt.t/4"

• Secure

with a ring fastener.

 

Washers 5/16"-18

5/16"

Straight

Arm

Curved

Door Arm

On one-piece doors, before connecting the door arm to the trolley the travel limits must be adjusted. Limit adjustment screws are located on the left side panel as shown on page 28. Follow adjustment procedures below.

Fully Closed

Trolley

Fully Open

Trolley

Door Arm

Door Arm

Door Arm

Connector Hole

m

I

,...........

JL_

Closed

 

 

 

Door Arm

I

Door

Open Door

Door

with

 

 

 

Backward

Slant

 

I

 

 

 

Adjustment Procedures for One-PieceDoors

Open Door Adjustment:

Decrease UP limit

•Turn the UP limit adjustment screw counter- clockwise 5-1/2 turns.

•Press the Door Control push bar or button. The trolley will travel to the fully open position.

•Manually raise the door to the open position (parallel to the floor), and lift the door arm to the

trolley. The arm should touch the trolley just in back of the door arm connector hole. Refer to the

fully open trolley/door arm positions in the illustration, if the arm does not extend far enough, adjust the limit further. One full turn equals 2" of trolley travel.

Closed Door Adjustment:

Decrease DOWN limit

•Turn the DOWN limit adjustment screw clockwise 5 complete turns.

•Press the Door Control push bar or button. The trolley will travel to the fully closed position.

•Manually close the door and lift the door arm to the trolley. The arm should touch the trolley just ahead of the door arm connector hole. Refer to the fully closed trolley/door arm positions in the illustration. If the arm is behind the connector hole, adjust the limit further. One full turn equals 2" of trolley travel.

Connect the door arm to the trolley.

•Close the door and join the curved arm to the connector hole in the trolley with the remaining clevis pin. It may be necessary to lift the door slightly to make the connection.

•Secure with a ring fastener.

•Run the opener through a complete travel cycle. If the door has a slight "backward" slant in full open position as shown in the illustration, decrease the UP limit until the door is parallel to the floor.

27

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Image 27
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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.

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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.
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