Craftsman 139.53335SRT3, 139.53834SRT3, 139.53646SRT2 Hardware Shown Actual Size, Trouble Shooting

Page 23

Center each sensor unit in a "C" wrap with lenses pointing toward each other across the door (see Figure 6).

Secure sensors with the hardware shown. Finger tighten the wing nut on the receiving eye to allow for final adjustment. Securely tighten the sending eye wing nut.

Run the wires from both sensors to the opener. Use insulated staples to secure wire to wall and ceiling.

Strip 1/4" of insutation from each set of wires. Separate white and white/black wires sufficiently to connect to the opener terminal screws: white to 2 and white/black to 3.

Aligning the Safety Sensors

Plug in the opener. Green indicator lights in both the sending and receiving eyes will g/owstead#yif wiring connections and alignment are correct:

The sendingeye indicator light will glow regardless of alignment or obstruction, if the indicator light is off, dim or flickering in the receiving eye (and the invisible light beam path is not obstructed), alignment is required.

Loosen the sendingeye wing nut and re-adjust, aiming directly at the receiving eye. Lock in place.

Loosen the receivlngeye wing nut and adjust sensor vertically and/or horizontally until it receives the sender's beam. When the green indicator light glows stead#y, tighten the wing nut.

Hardware Shown Actual Size

1/4-20 x 1-1/2"

Figure 6

"C" Wra

Indicator

Light

1/4-20x 1-1/2"

Hex Bo_

Trouble Shooting

1.If the sending eye indicator light does not glow steadily after installation, check for:

Electric power to the opener.

A short in the white or white/black wires. These

can occur under staples or at screw terminal connections.

Incorrect wiring between sensors and opener.

An open wire (wire break).

2.If the sending eye indicator light glows steadi/ybut the receiving eye indicator light doesn't:

Check alignment.

Check for an open wire to the receiving eye.

3.If the receiving eye indicator light is dim, realign either sensor.

NOTE: When the invisible beam path is obstructed or misaligned while the door is closing, the door will reverse. If the door is already open, it will not close. The opener lights will flash 10 times. (if bu/bs are not installed, 10 clicks are audible.) See page 21.

Figure 7

Connect Wire to

Opener Terrninals

Bell Wire

__

Finished __

Bell Wire

Door Control

 

Sensor

 

 

 

Conneciions_

 

Connections

 

(dotted line)

-'-

7

[]

OPENER TERMINAL SCREWS

Sensor

Invisible Light Seam

Sensor

Protection Area

23

Image 23
Contents Craftsman Start by reviewing these important safety alert symbols YoullNeed Tools Closed Position Sectional Door InstallationOne-Piece Door With Track ONE-PIECE Door Installation One-PieceDoor Without TrackTO your Installation Carton Inventory Wit w edT oHardware Installation HardwareSafety Reversing Sensor Installation 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 SizeMasterFigure Assembly StepInstall the Chain/Cable Attach the Sprocket Cover Tighten the Chain & Cable Trolley before adjusting chainIll AbovethedoorIF1 --L--Ji One-piece door without track Pivot hardware One-piece door without track Jamb hardwareFasten the Header Bracket to the Ceiling Install the Header BracketFasten the Header Bracket to the Wall 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 screwsAttach the Emergency Release Rope and Handle Install the Light and the Lens32 explains how to use the door control RightWrong Permanent Wiring ConnectionsElectrical Requirements 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 ProgrammingSituation Having a Problem?Probable Cause and Solution 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.

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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.