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.

Working on an open garage door without vice grips. Springs for one piece doors are wound more tightly and operate differently than extension springs for sectional doors. Garage door springs must properly match the door s weight. 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.

This tension makes it easier to lift the garage door from its closed position. Plug end extension spring the holmes hally p730 30 in. Two p730 springs one on each side of the door can handle a 90 lbs. 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.

Torsion see above which mounts on the header above the door and extension photo 1 which floats above the upper roller track. Otherwise it will fall breaking all of your windows. If you are underneath it it will come down on you like a guillotine. Tie the extension spring to the roller track then detach the cable from the bottom bracket with a pair of pliers.

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. 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. You may wish to work on your garage door extension spring with your garage door up.

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. If you do so you need to clamp vice grips on the door. The holmes hally p730 30 in. Following are the steps necessary to replace one or more of these springs while taking safety precautions.

Through the use of pulleys they perform the same function as the torsion springs. Garage door springs come in two styles. How to choose garage door extension springs. They come under tension when the garage door is closed to make lifting the.

Whenever a torsion spring is installed it is stretched horizontally along the shaft to keep the coils from binding. As the garage door opens the spring loses about 7 coils as the ends of the spring pull together. Plug end extension spring is a spring replacement for 1 piece tilt up canopy style garage doors. Door with an initial tension of 110 lbs.