If it tries to keep going down then you need to lessen the.
Overhead door model 456 force adjustment.
Let s read the manual overhead door model 556 656 all scams online offering a manual so let s read an actual one.
When the garage door opens about halfway or 5 feet from the ground and stops the up limit switch needs to be adjusted.
If it reverses as soon as it hits the board you are ok.
If a page isn t legible from compression le.
Set a 2x4 on the ground and close the door on it.
View and download overhead door 450a installation instructions and owner s manual online.
It has a set of adjusting screws on the back for the amount of force it will take to reverse the door if it finds an obstruction when coming down like somebodies foot or a kitten.
Have model 456 overhead door opener.
Garage door opener system.
Helical drive gear was worn.
When disengage the door it moves chain up and down.
Redid install to make sure all seated properly.
Garage door opener curved arm includes cotter pin.
Open the garage door and watch it closely as it opens.
Download the owners manual for overhead door products including garage doors and garage door openers.
26013 26013d s 26013d.
Now moves up and down 1 2 inches.
I fixed it and things worked.
Thought that rpm sensor was problem.
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This video details how to adjust the opener force and travel of the door.