Garage Door Arm Adjustment

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.

Garage door arm adjustment.

Place a stepladder beneath the box portion of the garage door opener. Have a helper steady the ladder. 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. Adjust the springs on both sides of the door the same way.

Settling is a problem for garage doors as it changes the way the door sits in the frame. If the door was closing too quickly move the spring to the next higher hole on the bracket. You may also have to adjust the position of the door bracket shown in the third image. Retest the door.

You must attach the bracket that connects the arm to the door before you can attach the arm itself. Once the spring is free of tension remove from its track hanger. Look for two limit adjustment screws. These may be on the side of the box but are usually at.

If it was opening too quickly move it to the next lower hole. 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. Access door gap between floor and bottom of door safety must not exceed 14 reversing sensor. If you have a wooden garage door then you can trim the door down to make it fit properly.

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.