Garage Door Extension Spring Setup

If you do so you need to clamp vice grips on the door.

Garage door extension spring setup. Following are the steps necessary to replace one or more of these springs while taking safety precautions. Door with an initial tension of 110 lbs. They come under tension when the garage door is closed to make lifting the. This tension makes it easier to lift the garage door from its closed position.

Plug end extension spring the holmes hally p730 30 in. Once your garage door is secured remove the spring hook from the track hanger which will allow you to move the hook and adjust the spring s tension. Working on an open garage door without vice grips. How to choose garage door extension springs.

In this post we ll focus on extension springs for sectional doors because they are more common. Two p730 springs one on each side of the door can handle a 90 lbs. As the garage door opens the spring loses about 7 coils as the ends of the spring pull together. Extension springs the other kind of garage door springs are torsion springs run alongside the upper garage door tracks the ones that run parallel to the ceiling and stretch or extend out and back to help lift the garage door.

Springs for one piece doors are wound more tightly and operate differently than extension springs for sectional doors. Side mounted springs are long heavy springs mounted on each side of the upper garage door track. Otherwise it will fall breaking all of your windows. Garage door springs must properly match the door s weight.

You may wish to work on your garage door extension spring with your garage door up. The holmes hally p730 30 in. Do not try to remove the extension spring that is not broken when the garage door is closed. To adjust your garage door s side mounted springs first open your door fully and secure it in place with a c clamp below the bottom roller.

Through the use of pulleys they perform the same function as the torsion springs. Since the spring anchor bracket is secured to the wall the winding cones pull the shaft through the bracket. The springs extend along the shaft and work by twisting as the garage door closes by means of cables attached to each side of the lowest garage door panel. If you are underneath it it will come down on you like a guillotine.

Torsion see above which mounts on the header above the door and extension photo 1 which floats above the upper roller track. Garage door springs come in two styles. Tie the extension spring to the roller track then detach the cable from the bottom bracket with a pair of pliers. Whenever a torsion spring is installed it is stretched horizontally along the shaft to keep the coils from binding.