Residential torsion springs are stretched 1 8 to 1 4.
How to change garage door spring.
The torsion garage door springs will be located on either side of the center of the door frame while extension springs are on swing out arms placed on either side of the door itself.
Diy garage door torsion spring replacement step by step how to video.
One at the end of each spring and one at the top of the vertical door track they also have two cables on each side.
This video will show you how to replace the extension springs on your garage door.
Garage door springs can be easily broken making the garage door difficult to open or even putting the vehicle or driver at risk by dropping on them.
If the garage door spring snakes after tightening the set screws repeat the process and stretch the spring half as much as before.
Doors with extension springs have two sets of pulleys which are sometimes called sheaves.
Larger commercial and industrial overhead garage door torsion springs are stretched as much as an inch.
Replacing torsion springs is the more difficult and potentially dangerous task.
One cable attaches to the bottom of the door runs up and over the pulley above the door and around the spring pulley and then attaches to the door track bracket.