MOUNTING AND WIRING THE SAFETY REVERSING SENSORS

Slide a 1/4"-20xl/2" carriage bolt head into the slot on each sensor. Use wing nuts to fasten sensors to brackets, with lenses pointing toward each other across the door. Be sure the lens is not obstructed by a bracket extension (Figure 5).

Finger tighten the wing nuts.

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

Strip 7/16" (11 mm) of insulation from each set of wires. Separate white and white/black wires sufficiently to connect to the opener quick-connect terminals. Twist like colored wires together. Insert wires into quick-connect holes: white to white and white/black to grey (Figure 6).

ALIGNING THE SAFETY REVERSING SENSORS

Plug in the opener. The indicator lights in both the sending and receiving eyes will glow steadily if wiring connections and alignment are correct.

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

Loosen the sending eye wing nut and readjust, aiming directly at the receiving eye. Lock in place.

Loosen the receiving eye wing nut and adjust sensor until it receives the sender's beam. When the green indicator light glows steadily, tighten the wing nut.

Figure 6

Finished

Bell Wire

--Ceiling --

Figure 5

Wing Nut

CarriageBoltm_

1/4" 20

1/4" 20xl/2"

TROUBLESHOOTING THE SAFETY REVERSING

SENSORS

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 at staples, or at opener connections.

Incorrect wiring between sensors and opener.

A broken wire.

2.If the sending eye indicator light glows steadily but 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 blink 10 times. See page 20.

Connect Wire to

Quick Connect Terminals

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...- --'"

\

Bell Wire

 

 

 

 

Strip

wire

7/16"

J

1,

 

(11 mm)

 

 

I

o

 

 

17/16" (11 mm) l

2.

Twist

like

colored

 

 

wires

together

 

=:]

 

 

 

 

 

i

 

 

 

 

 

i

 

 

 

 

 

3,

To insert

or

release

 

 

wire, push in tab with

 

 

screwdriver

tip

 

H

H

H

 

 

 

Red White

Grey

Invisible

Light Beam

Safety Reversing Sensor

Quick Connect

Terminals

Protection

Area

 

 

 

Safety Reversing Sensor

22

Page 22
Image 22
Sears 139.53915D owner manual Mounting and Wiring the Safety Reversing Sensors, Aligning the Safety Reversing Sensors

139.53915D specifications

The Sears 139.53915D is a significant addition to the lineup of garage door openers, blending both functionality and modern technology to enhance user convenience. This model is designed to accommodate residential garage doors, forming a reliable solution for homeowners who prioritize safety, security, and ease of use.

One of the standout features of the 139.53915D is its powerful motor, capable of handling heavy garage doors with ease. With its 1/2 horsepower motor, it ensures a smooth and swift opening and closing mechanism, allowing for quick access while still maintaining durability. This strength is particularly beneficial for larger or heavier doors that require more power for reliable operation.

The opener utilizes a chain drive system, renowned for its durability and strength. Chain drive systems are highly effective in providing reliable performance, making them a popular choice for various households. Despite this robust mechanism, the opener remains relatively quiet during operation, minimizing disruptions in the home environment.

A key characteristic of the Sears 139.53915D is its security features. It is equipped with rolling code technology, which generates a new code every time the remote control is used. This significantly enhances security by preventing unauthorized access and ensuring that only designated users can operate the garage door.

Additionally, the model features a safety reverse system, which automatically reverses the door's direction if it encounters an obstruction while closing. This not only protects vehicles and other possessions but also safeguards pets and children—an essential component for family households.

Installation of the Sears 139.53915D is designed to be straightforward, with comprehensive instructions that facilitate an efficient setup process. For those who prefer a seamless experience, the opener is compatible with several accessories, including smart home technologies. This compatibility allows users to integrate their garage door opener into a broader home automation system, providing added convenience and control through smartphone apps or smart devices.

In summary, the Sears 139.53915D garage door opener is a robust, reliable choice for homeowners seeking an efficient and secure opening mechanism. Its combination of a powerful motor, durable chain drive system, advanced security features, and ease of installation make it a formidable option in the market for garage door solutions.