First the floor may be so out of level that the garage floor does not meet the bottom edge of the door.
How to level garage door.
The garage doors that need leveling will have a hollow shaft that is found along the top of the door.
Heavier doors may require an additional 1 4 turn.
Garage doors were designed to move flawlessly when in perfect balance this is the point where they feel neither too heavy nor too light and hang at whatever level you decide to set them.
If you re having trouble with gaps underneath your garage door follow these instructions to level your door and create a much tighter seal to keep the unwanted out.
If the garage door is level tighten the set screws 3 4 turn past the point at which they meet the hollow shaft.
These lighter doors do not have an automatic adjuster for leveling so you will have to take care of this yourself.
This guide will teach you how to adjust an uneven garage door to keep it running safely and smoothly.
For safety purposes it s essential to cut the power to your garage door opener before making any adjustments to the garage door.
Unfortunately too many perfect garage doors fall into disrepair when owners refuse to do regular maintenance.
Over tightening the set screws could damage the shaft or drum resulting in the same.
An out of balance garage door can close too quickly creating a potential hazard for kids and pets and placing unnecessary strain on the door s parts.
Under tightening the drums could cause the drum to slip and the door to cock or fall.
It s important to check your garage door balance regularly and adjust it when necessary.
Second and far more critical is when the garage floor has begun to tilt backward toward the house.