Finish with a test of the garage door tension spring.
How to adjust spring tension on henderson garage door.
Remove the clamps and pliers from the torsion tube and track and lift the door about 3 ft.
Hold the garage door in this position by attaching a c clamp to the track at a point below the lowest door roller wheel.
Open it just as wide as you can without hitting the garage door opener s stop bolt and place a clamp on the track on both sides to keep the door in.
You must release the tension on the garage door springs before attempting adjustment or replacement.
The springs are located at the top inside part of the garage door.
Adjusting an extension spring door.
This is accomplished by opening the garage door as fully as possible until it hits the stop bolt on the track.
With an extension spring door the goal is to take all the tension off the door before you even think about touching a spring you can do this by opening the door all the way and propping it up with a ladder.
Garage door springs offset the weight of the door and allow it to open and close with ease.
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If the garage door isn t opening or closing properly then check the tension on the torsion springs for needed adjustments you may need to have someone helping you to adjust the torsion spring because it can be potentially dangerous.
This video applies t.