Single Spring Garage Door Adjustment

If the spring shortens in length unwind the spring and switch sides the spring is on the wrong side.

Single spring garage door adjustment.

The springs are located at the top inside part of the garage door. Adjusting garage door springs is a common repair. Adjust the springs on both sides of the door the same way. Adjusting garage door extension springs.

Begin by turning the spring up 1 4 turn until it meets resistance. 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. At this point you will wind the springs. This is accomplished by opening the garage door as fully as possible until it hits the stop bolt on the track.

If it was opening too quickly move it to the next lower hole. Once the spring is free of tension remove from its track hanger. Otherwise continue winding until you reach a count of 30 this is 7 1 2 turns which is normal for most 7 garage doors. Hold the garage door in this position by attaching a c clamp to the track at a point below the lowest door roller wheel.

You must release the tension on the garage door springs before attempting adjustment or replacement. Newer steel doors with only one strut on top often need only 7 1 4 turns. Many garage door servicemen mark the springs with chalk or paint but you can probably wind the springs in the time it would take me to explain how to read the marks. If the door was closing too quickly move the spring to the next higher hole on the bracket.

Troubleshooting garage door springs. Retest the door balance as you did in step 1. Adjusting the tension or balance spring on an up and over garage door when the door feels heavy. Garage door springs are used to offset the weight of the door.

Without the springs the door is very difficult to lift. When garage doors won t close all of the way or they close unevenly spring adjustment may be called for.