Garage Door Extension Spring Setup

Since the spring anchor bracket is secured to the wall the winding cones pull the shaft through the bracket.

Garage door extension spring setup.

Garage door springs must properly match the door s weight. 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. Door with an initial tension of 110 lbs. As the garage door opens the spring loses about 7 coils as the ends of the spring pull together.

Otherwise it will fall breaking all of your windows. 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. How to choose garage door extension springs. Garage door springs come in two styles.

Springs for one piece doors are wound more tightly and operate differently than extension springs for sectional doors. The holmes hally p730 30 in. Working on an open garage door without vice grips. 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. Through the use of pulleys they perform the same function as the torsion springs. Tie the extension spring to the roller track then detach the cable from the bottom bracket with a pair of pliers. You may wish to work on your garage door extension spring with your garage door up.

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. If you do so you need to clamp vice grips on the door. Whenever a torsion spring is installed it is stretched horizontally along the shaft to keep the coils from binding. Two p730 springs one on each side of the door can handle a 90 lbs.

Following are the steps necessary to replace one or more of these springs while taking safety precautions. In this post we ll focus on extension springs for sectional doors because they are more common. Side mounted springs are long heavy springs mounted on each side of the upper garage door track. 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.

If you are underneath it it will come down on you like a guillotine. They come under tension when the garage door is closed to make lifting the. Torsion see above which mounts on the header above the door and extension photo 1 which floats above the upper roller track. 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.