Garage Door Arm Adjustment

Access door gap between floor and bottom of door safety must not exceed 14 reversing sensor.

Garage door arm adjustment.

You must attach the bracket that connects the arm to the door before you can attach the arm itself. I left the door in the lift bay alone and just offset the opener completely outboard of the upper rail on one side. You can do this with a jigsaw or a circular saw sanding off the bottom and replacing it in the frame so it sits properly. You may also have to adjust the position of the door bracket shown in the third image.

If it was opening too quickly move it to the next lower hole. Have a helper steady the ladder. Adjust the springs on both sides of the door the same way. If you have a wooden garage door then you can trim the door down to make it fit properly.

These may be on the side of the box but are usually at. Place a stepladder beneath the box portion of the garage door opener. Look for two limit adjustment screws. This video details how to adjust the opener force and travel of the door.

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. 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. Adjusting the height of the header bracket illustrated in the second image will help keep the curved door arm from extending below the lowest point of the door or the lowest point of the header wall. Settling is a problem for garage doors as it changes the way the door sits in the frame.

Once the spring is free of tension remove from its track hanger.