Adjust the springs on both sides of the door the same way.
How to adjust garage roller door spring.
The other is attached to a pulley connected to the cable.
Find the two springs and corresponding adjustment screws collars these should be along the shaft.
Clamp the garage door in place with a c clamp above the bottom roller.
If it is still not closing correctly secure the door again and keep adjusting the spring until your door fully closes.
To decrease tension move the hook to a higher hole.
This is accomplished by opening the garage door as fully as possible until it hits the stop bolt on the track.
Here are the steps to adjust common torsion spring mechanisms.
One end of the spring is connected to the garage door track or frame.
Hold the garage door in this position by attaching a c clamp to the track at a point below the lowest door roller wheel.
For more advice like how to adjust your garage door s torsion springs read on.
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.
Close the garage door and disconnect your garage door opener.
Retest the door.
Once the spring is free of tension remove from its track hanger.
If you need to increase the spring tension hook the spring onto a lower hole on the track hanger.
You must release the tension on the garage door springs before attempting adjustment or replacement.
Adjust the spring into the proper position and make sure your garage door closes all of the way.
If the door was closing too quickly move the spring to the next higher hole on the bracket.
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