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 place.
How to level a garage door with springs.
Second and far more critical is when the garage floor has begun to tilt backward toward the house.
Move to the other side of the garage door where the gap is.
This will tighten the screws and raise the door.
Adjust the springs on both sides of the door the same way.
First the floor may be so out of level that the garage floor does not meet the bottom edge of the door.
Garage door springs act as a counterbalance to the weight of all garage doors making them easier to open and close.
If the garage door is level tighten the set screws 3 4 turn past the point at which they meet the hollow shaft.
To rise the side of the door that is lower turn the set screws in the drum clockwise.
A problem with the spring tension could cause the door to open or close unevenly improperly or at the wrong speed and adjusting the springs will likely solve the problem.
So with a gap on the left side you will begin leveling on the right side.
If it was opening too quickly move it to the next lower hole.
Remember to release the vise grip each time you get to step nine.
Garage doors come in different styles that use two different types of springs.
However an out of kilter garage floor may require leveling when two critical scenarios happen.
If they have a lot of give you may want to consider replacing them.
Climb up to the drum and use a marker to make one mark on the drum and another approximately one fourth of an inch above the mark on the drum if the gap under the door is 1 inch or more.
Garage door springs offset the weight of the door and allow it to open and close with ease.
If the door was closing too quickly move the spring to the next higher hole on the bracket.
Remove any safety cables from the springs before loosening the springs themselves.
Once the spring is free of tension remove from its track hanger.
Garage springs are under an extreme amount of tension and either stretch or torque providing enough force to help you move the door.