To know how to balance a garage door first disengage the opener from the door by pulling the opener release handle see opening photo.
Homemade roll up garage door opener.
The garage door opener motor is the part that activates the lifting mechanism to either raise or lower the garage door.
This is generally easy to do as it goes in behind the railing system of the garage door opener.
This was done because i was informed by the garage door company that it was not a way to add a garage door opener to my doors but here is the evidence.
When installing a new garage door opener you will need to do what is called fit the motor assembly.