Second and far more critical is when the garage floor has begun to tilt backward toward the house.
How to level a garage door with springs.
If it was opening too quickly move it to the next lower hole.
If they have a lot of give you may want to consider replacing them.
To rise the side of the door that is lower turn the set screws in the drum clockwise.
However an out of kilter garage floor may require leveling when two critical scenarios happen.
Remove any safety cables from the springs before loosening the springs themselves.
Garage door springs offset the weight of the door and allow it to open and close with ease.
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.
First the floor may be so out of level that the garage floor does not meet the bottom edge of the door.
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.
Move to the other side of the garage door where the gap is.
Garage springs are under an extreme amount of tension and either stretch or torque providing enough force to help you move the door.
Garage door springs act as a counterbalance to the weight of all garage doors making them easier to open and close.
Remember to release the vise grip each time you get to step nine.
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.
This will tighten the screws and raise the door.
Start with the side which is opposite to where the gap is.
If the garage door is level tighten the set screws 3 4 turn past the point at which they meet the hollow shaft.
Once the spring is free of tension remove from its track hanger.
If the bottom of the garage door is still not level repeat this process following steps six through nine with another mark or marks until the door is level.
So with a gap on the left side you will begin leveling on the right side.
If the gap is less than an inch make the marks one eighth of an inch apart.