Step 1 adjust the limit.
How to adjust down pressure on garage door.
Step 2 adjust the force.
Every complete turn equals 2 inches of travel.
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.
How to adjust a garage door opener.
To make fine adjustments try adjusting the lifting cable instead of the spring.
Equal about 2 of travel adjustment.
Program the garage door opener to recognize when your garage door is completely open.
Adjust the garage door opener mechanism.
How to adjust a garage door opener reverse sensors.
To decrease it turn it counterclockwise.
To open the door completely adjust.
Turn the adjustment screw on the limit clockwise if the door doesn t fully close.
One full turn of the adjustment screw will.
If the up travel isn t functioning properly turn the up limit adjustment screw clockwise.
Using the up open limit adjustment screw you will turn the screw clockwise for more open.
Place a small piece of lumber or other hard object under the door while it is open.
On the garage door motor there will be two knobs or dials to adjust the opener and the reverse sensor.
Travel and counter clockwise for less open travel.
Hold down the open travel limit button until the door has raised all the way.
It is important to set the up open travel limit properly.
Move it the opposite way to decrease it.
In order to increase the down travel rotate the down limit adjustment screw counterclockwise.
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.
The green indicator light will flash twice to confirm.
With the door propped open take the s hook out of the support and tighten or loosen the cable as needed.
Step 3 adjust the safety reverse.
The cable is attached to the door and runs to an s hook that attaches to the track support.
This video demonstrates how to adjust force on a liftmaster garage door opener with manual adjustment controls.