Assembly Step 2

Install the Trolley on the T-rail

•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 screwdriver stop.

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

Hex Screw 5/16"-18x7/8"

Temporary Stop

Screwdriver

Assembly Step 3

I

Fasten the T-rail to the Opener

I

 

Place the opener on packing material to protect the cover. For convenience, put a support under the belt pulley bracket.

Remove the (2) 5/16"-18xl/2" washered screws mounted in the top of the opener.

Trolley

Stop Hole

\

.ock Washer

, _ 5/16"

/Nut

5/16"-18

•Insert a 5/16"-18x7/8" hex screw into the trolley

stop hole in the T-rail as shown. Tighten securely with a 5/16" lock washer and nut. This screw limits

trolley travel in the DOWN direction.

...... -_..-?-:..:.?;.??;??.??;i-.!!-.i.i?!:i:i::__.;iliili!_:_:i:!_i_iiili__-!!;!:__"!i !!;__i::i:__? ':_

.;.:.;.:.:.:. :.:.:.:.:.::+:._.:.:.:.:+:.:.:.:.:.:+:;p -.:<.+._:.:5+7... :_:_:_:_:_:_:_:9>_:_:+:_:_`_:_÷_¢_+_+;:_:_:_:_:_>:_>P_:_

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

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 screwsl Any other screws will cause serious damage to the opener.

•Insert a 5/16"-18x7/8" hex screw into the cover protection bolt 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

DHlilllilililill0

Hex Screw

NUt

Lock Washer

5/16"-18xl/2"

Hex Screw 5/16"-18x7/8 =

Cover

Protection

T-rail

(Sack Section)

5/16"

Nut

5/16"-18

Use Or#,

5/16"- 18x7/8"

5/16"

5/16"

Page 8 Page 10
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Image 9
Craftsman 139.53664SRT2 owner manual Install the Trolley on the T-rail, Fasten the T-rail to the Opener
Page 8 Page 10

139.53664SRT2 specifications

The Craftsman 139.53664SRT2 is a highly regarded garage door opener that combines reliability, advanced technology, and user-friendly features. Designed for residential use, this model stands out due to its robust functionality and ease of installation, making it a popular choice among homeowners.

One of the standout features of the Craftsman 139.53664SRT2 is its powerful motor. It boasts a 1/2 horsepower motor capable of lifting standard residential garage doors with ease. This strength means reliable performance even in adverse weather conditions, ensuring that your door operates smoothly and efficiently each time.

Another key technology in this model is the Smart Control system. The Craftsman 139.53664SRT2 allows users to operate their garage door remotely, thanks to its built-in Wi-Fi connectivity. By connecting to a smartphone app, homeowners can monitor and control their garage door from anywhere, providing added convenience and security. This feature also enables users to receive alerts and notifications, ensuring they are always informed about the status of their garage door.

Security is a top priority for the Craftsman brand, and the 139.53664SRT2 features advanced security measures, including rolling code technology. This technology generates a new access code each time the remote is used, effectively preventing unauthorized access and ensuring that your garage remains secure.

The installation of the Craftsman 139.53664SRT2 is straightforward, thanks to its user-friendly design and comprehensive instructions. Many users appreciate that it can be installed as a DIY project, saving on installation costs while providing the satisfaction of completing the task themselves. The system is compatible with most existing garage door systems, making it versatile for different setups.

In terms of noise level, the Craftsman 139.53664SRT2 operates quietly, allowing for a smooth opening and closing process without disturbing the household. This feature is particularly beneficial for those with living spaces above the garage.

Overall, the Craftsman 139.53664SRT2 is a dependable garage door opener that integrates modern technology, ensuring safety, convenience, and ease of use. Its powerful motor, Wi-Fi capability, and enhanced security features make it a valuable addition to any home.
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