To adjust a door that can t stay open bring the first winding bar up to a 90 degree angle with the garage door this is a quarter turn.
How to tension garage roller door springs.
Once your garage door is secured remove the spring hook from the track hanger which will allow you to move the hook and adjust the spring s tension.
This is accomplished by opening the garage door as fully as possible until it hits the stop bolt on the track.
You must release the tension on the garage door springs before attempting adjustment or replacement.
Close the garage door and disconnect your garage door opener.
Unplug the opener and pull the emergency release cord up and down to disconnect the door from the opener.
This is how to loosen or tighten the tension on a roll up door.
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.
Place the second winding bar in the hole that s now facing the floor and vertical to the door to help you hold everything in place while you return the set screws to the holes and tighten them down snugly.
Disengage the garage door from the motor or in other words put the door into manual mode lift the garage door until the bottom of the door is roughly chest height.
Here are the steps to adjust common torsion spring mechanisms.
Clamp the garage door in place with a c clamp above the bottom roller.
Close your garage door.
Follow these to test the tension of your garage door spring.
Find the two springs and corresponding adjustment screws collars these should be along the shaft.
Open the door to release the tension on the springs.
Hold the door in place.
Use locking pliers or a c clamp under the bottom rollers to prevent the door from rolling down.
Remove the spring hook and adjust the tension.
Open the garage door fully.
Hold the garage door in this position by attaching a c clamp to the track at a point below the lowest door roller wheel.
How to test the garage door spring tension.