Menus are sometimes hierarchically organized, allowing navigation through different levels of the menu structure. Selecting a menu entry with an arrow will expand it, showing a second menu (the sub-menu) with options related to the selected entry.
Torsion springs are normally mounted horizontally above the opening of your garage door. When you pull the door down, cables attached to the bottom corners actually force the springs to wind up, in turn energizing the system.
The springs of your garage door are actually part of the door itself and not the door opener. With that being said, it should also be noted that it is the springs that help to make the door easy to open and close. In general, the garage door springs last for a long period of time and that they only have one function.f your door only has one torsion spring and that the door is just like any basic steel garage door, you can expect to spend around $150 up to $200. This will also depend on your location. There are certain cities in the US that charge more than other cities.