Slide the spring that you placed on the left side of the door at the beginning onto the shaft as shown.
How to install a single garage door spring.
The stationary cone must be toward the center of the garage door while the winding cone must be toward the outside of the door.
The door will usually drop back down and raise the bar.
Tie the extension spring to the roller track then detach the cable from the bottom bracket with a pair of pliers.
Open the door then tighten locking pliers onto the track to hold the door open.
Slowly pull down on the winding bar until the garage door rises 3 and the roller hits the vise grip on the track.
Single torsion spring replacement.
Screw on the top hinges and rollers.
Hook the garage door spring onto door track bracket.
Feed steel cable over the pulleys at the end of the track.
Set top door panel in place and secure it with hinge screws.
Many of the accidents that occur while fixing garage door springs are due to installing springs that are too strong.
Disconnect the garage door opener so the door remains closed.
Secure cable end to bracket.
This video will show you how to replace the extension springs on your garage door.
You may need to loosen the set screws for the spring to slide onto the shaft.
This video will show you how to replace the extension springs on your garage door.