Detach the old spring from both ends and replace it with the new one and replace the pulleys as well if they are worn out.
Garage door spring adjustment.
You must release the tension on the garage door springs before attempting adjustment or replacement.
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.
Use a metal rod to stick in the first notch of the cone.
First thing that you should do is observe the torsion spring and the connected apparatus carefully.
This can make the other parts of the garage door last a much longer time.
Adjust the spring into the proper position and make sure your garage door closes all of the way.
The other is attached to a pulley connected to the cable.
The rod will need to be at least 18 inches long and 1 2.
Locate a reddish color cone around the spring.
Hold the garage door in this position by attaching a c clamp to the track at a point below the lowest door roller wheel.
The cone is on the torsion spring on the left side away from the.
This is accomplished by opening the garage door as fully as possible until it hits the stop bolt on the track.
One end of the spring is connected to the garage door track or frame.
Wear safety glasses during execution of the adjustment procedure.
Look for a reddish cone on the torsion spring.
How to safely adjust your garage door spring.