Garage Door Extension Spring Setup

Whenever a torsion spring is installed it is stretched horizontally along the shaft to keep the coils from binding.

Garage door extension spring setup.

Torsion see above which mounts on the header above the door and extension photo 1 which floats above the upper roller track. Springs for one piece doors are wound more tightly and operate differently than extension springs for sectional doors. As the garage door opens the spring loses about 7 coils as the ends of the spring pull together. Since the spring anchor bracket is secured to the wall the winding cones pull the shaft through the bracket.

Tie the extension spring to the roller track then detach the cable from the bottom bracket with a pair of pliers. Working on an open garage door without vice grips. Garage door springs must properly match the door s weight. How to choose garage door extension springs.

Plug end extension spring is a spring replacement for 1 piece tilt up canopy style garage doors. 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. Garage door springs come in two styles. Two p730 springs one on each side of the door can handle a 90 lbs.

Since extension springs are determined by how much weight they each lift and the pulley system cuts this in half you need to replace your old springs with 200 pound extension springs. Do not try to remove the extension spring that is not broken when the garage door is closed. Plug end extension spring the holmes hally p730 30 in. Door with an initial tension of 110 lbs.

They come under tension when the garage door is closed to make lifting the. 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. Following are the steps necessary to replace one or more of these springs while taking safety precautions. 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.

Otherwise it will fall breaking all of your windows. 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. You may wish to work on your garage door extension spring with your garage door up. If you are underneath it it will come down on you like a guillotine.

The holmes hally p730 30 in. Through the use of pulleys they perform the same function as the torsion springs. 7 doors require a 25 long spring that stretches up to 42 67 total length when the door is closed 8 doors require a 27 spring that stretches up to 48 75 total length when to door is closed extension springs are a non returnable item call customer service if you have any questions. Side mounted springs are long heavy springs mounted on each side of the upper garage door track.