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.
How to clamp a garage door spring.
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.
Do this by attaching the clamp to the garage door track just above the door roller at the very bottom on each side of the door.
For extension spring hardware the tension in the springs disappears almost completely as soon as the door is completely opened.
Unplug the garage door opener and clamp the door to the track.
Close the garage door and use c clamps to hold the door closed.
Working on an open garage door without vice grips.
Lubricate the spring with garage door lubricant then remove the clamp from the garage door.
If you are underneath it it will come down on you like a guillotine.
Just because the door is open does not mean that the spring tension is fully released.
This will prevent the door from shooting up and breaking your nose when you wind the new springs during an overhead garage door repair.
Disconnect the garage door opener so the door remains closed.
Now unplug the garage door opener if you have one and disengage it by pulling the cord on the unit s arm.
Open the door completely and block it in this position with clamps or locking pliers firmly tightened to the track to prevent the door from closing.
You can go ahead and remove the clamps from the garage s tracks and lower the door manually.
If you do so you need to clamp vice grips on the door.
To adjust garage door cables you ll need a stepladder c clamps a flat head screwdriver wire cutters and pliers.
To fix your garage door cables you ll want to release the tension of the springs by lifting the door.
If the door remains in place the replacement was a.
Hold the garage door in this position by attaching a c clamp to the track at a point below the lowest door roller wheel.
This is true even if you have a garage door opener.
Test the spring by lifting the door about 3 feet.
You may wish to work on your garage door extension spring with your garage door up.