The larger steps on the drum increase the torque by increasing the lever arm. So as we step down, we lose torque as we lose tension. Also the bigger the step the farther we can go on (or more cable can wrap on the drum) per one turn of the spring.

@@servicespringcorp Thanks so much.

You can do a momentary switch, but it would be on terminals 3 & 4. Either on the motor head or the wall station. Terminals 1 & 2 are the photo eyes. Thanks.

Apologies for the confusion. Spring repair blocks are to be used in pairs, one break in a spring requires two repair block. The wire in the last block should only have ¼ inch past the outside of the set screw. Please remember these are intended as a very temporary solution to a problem. Once a spring has reached its cycle life, it will break again. Thank you for the comment

Hi Zack, Torsion springs should only be adjusted by professionals as they are extremely dangerous. One of two things can cause what you are describing. 1) The springs were wound the wrong way or 2) Something prevented the spring from growing when tension was added. Either one of these actions can cause it to spin on the cone too far. Please contact a certified professional for more help. Thank you Service Spring

how does the door bend when it rolls up if you have a one piece door?

@@RichRich007 He probably has one of the old swing out and up doors. They use a different type of spring.

Thanks for the ideas, Omer! We are hoping to do more of these short informational videos in the future. Showing how the product works will make some great videos. Next week David is doing another video talking about Miller Edge light curtains. So be sure to watch out for that!

Thank you!

There is a great deal of force that is used to open the door, so it is not uncommon to see slight movement, but, make sure the mounting bracket is secured to the wall and the coupling is installed correctly.

The 8500W can be installed on either side of the door, refer to the owners manual for installation instructions

Thank you! We greatly appreciate your compliments.

The model 827LM has changed a bit, there are only two holes used to mount this product.

To add to this it weighs almost nothing. imagine a bathroom exhaust fan. If you hit a stud you could use one screw and never notice the difference (my builder thought this and I only noticed because I removed this when I went to paint the garage).

As with any of the products we sell, we always recommend hiring a trained professional to insure quality installation and guaranteeing the warranty of the product.

The opener itself isn’t wireless; however, it does connect wireless to the homeowners wi-fi internet. The opener is then compatiable with the MyQ app.

An electrical outlet is required within 6’ of the installation area. If outlet does not exist, contact a qualified electrician.

+Tim A. The Lifestyle Screen has its own track mounting brackets that place the LS track right behind and below the original door track. With the garage door in the open position, the screen door comes down against the wall jambs just like the garage door. The hardware mounted on the Lifestyle Screen door properly pushes the screen door right against the door jamb in the close position to ensure a tight fit just like the garage door. If you have any other questions, feel free to contact our sales teams at 800.752.8522.