How To Stretch Garage Door Spring

If the garage door is being held up extension springs there should be two on each side of the door.

How to stretch garage door spring.

This is accomplished by opening the garage door asfully as possible until it hits the stop bolt on thetrack. Durability of the spring. These will stretch and coil to aid the opening and closing of the door. This is the wire size.

Fasten c clamps or vice grips under bottom rollers to retain door. If you use an extension spring with a different first number you need to adjust your cable length to achieve the necessary 10 percent of stretch when your door is open. The cable then attaches to the hanging bracket at the end of the track. Thread the cable through the guide hole and then through the spring.

This extension spring is used on a seven foot garage door. When you get this far you re almost done replacing garage door springs. It has a 25 inch relaxed or compressed length and a 42 inch stretched length which is how far the spring should be stretched when the garage door is closed. 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.

Hold the garage doorin this position by attaching a c clamp to the track at a point below the lowestdoor roller wheel. Disconnect power and lifting arm of garage door opener. 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. Measure 10 coils to the nearest 1 16.

The spring works by either compressing the spindle or unravelling it to open and close the door. It 39 s an older style system with essentially a one piece door where the bottom swings out. Knowing the spring s length can help you find the wire size on the chart above. It does not need to be tight just snug so it does not tangle.

This is true even if you have a garage door opener. As you might expect longer springs tend to be used on taller garage doors. I 39 m trying to get this garage door opener working for my landlord and i tried maxing out the motor force and it still would just start to close stop and return to the open position. With tension completely off extension springs disconnect springs from track support.

What could i use to stretch a side mounted garage door spring. Remove c clamps or vice grips and lower door by hand.