You need proper tension on a garage door to operate the door by hand or with an automatic opener.
Garage door tension spring cable.
Contact a professional repairman or garage door specialist for repairs to this kind of door.
How to adjust garage door tension.
Can you repair a garage door tension spring yourself.
The cable runs through the torsion springs literally doing the heavy lifting each time the door is raised.
Use steel rods at least 18 inches 46 cm long.
What a garage door cable does.
I just measured it.
Mine broke and this is nearly identical to the length of the one that s being replaced i m replacing both only one broke remember to get some 1 2 quot.
Here s a breakdown of how to adjust garage door cables.
You might be wondering what purpose does a garage door cable serve.
The garage door tension springs provide lifting force for the heavy door and are under tremendous tension get careless and they can hurt you.
In this video i will show you how to replace a broken cable for your extension spring garage door.
Side mounted springs are long heavy.
Steel bars to de tension the springs.
If you use the correct tools and follow our instructions you can rebuild the entire torsion spring system in just a few hours without any side trips to the er.
Garage doors with a single tension spring located over the center of the door are difficult and potentially dangerous to repair.
It s a torsion spring cable designed for a common 7 garage door installation.
This tension makes it easier to lift the garage door from its closed position.
It s actually one of the most important safety mechanisms of your garage door.