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.
by Steve. (Omaha, Ne). We have a new garage door with a torsion spring. When we installed the garage door opener to the door the door would only go down half way and the garage door opener could not continue pushing it down.The door wouldn't go down and the garage door opener would buck back.e have a new garage door with a torsion spring. When we installed the garage door opener to the door the door would only go down half way and the garage door opener could not continue pushing it down. The door wouldn't go down and the garage door opener would buck back.