Installation

Step

4

CAUTION

Position the Opener

 

 

Follow instructions

which

apply to your door

To prevent damage to steel, aluminum,

type as illustrated.

 

 

fiberglass or glass panel doors, do not rest the

 

 

 

opener on the door without using a 2x4.

SECTIONAL Door & ONE-PIECE Door with Track I

A 2x4 laid flat is convenient for setting an ideal door-to-T-rail distance.

Raise the opener onto a stepladder.

You will need help at this point if the ladder is not tall enough,

Open the door all the way and place a 2x4 laid flat on the top section beneath the T-rail.

if the top panel hits the trolley when you raise

the door, pull down on the trolley release arm to disconnect the inner and outer sections. The

trolley can remain disconnected until Step 12 is

completed,

T-rail2x4

Door

Stepladder

Trol_seArm

With the door fully open and parallel to the floor,

measure the distance from the floor to the top of the door.

Header

Bracket

Top of Opener

Using a stepladder as a support, raise the opener to the same distance as the door from the floor (it

will be at a slight angle as shown).

The top of the door should be level with the top of the opener. Do not position the opener more than 2" above this point.

I

Stepladder

16

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Craftsman 139.53660SRT1, 139.53834SRT3, 139.53646SRT2 Position the Opener, Sectional Door & ONE-PIECE Door with Track

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.