How To Stretch Garage Door Spring

With tension completely off extension springs disconnect springs from track support.

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. 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. Remove c clamps or vice grips and lower door by hand.

Change the fraction into a decimal and divide by 10. For a more accurate measurement start at the 1 mark on your ruler. It does not need to be tight just snug so it does not tangle. Disconnect power and lifting arm of garage door opener.

The spring works by either compressing the spindle or unravelling it to open and close the door. When you get this far you re almost done replacing garage door springs. Hold the garage doorin this position by attaching a c clamp to the track at a point below the lowestdoor roller wheel. It 39 s an older style system with essentially a one piece door where the bottom swings out.

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. Repeat this process for the other 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. These will stretch and coil to aid the opening and closing of the door.

What could i use to stretch a side mounted garage door spring. 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. This extension spring is used on a seven foot garage door. This is accomplished by opening the garage door asfully as possible until it hits the stop bolt on thetrack.

Fasten c clamps or vice grips under bottom rollers to retain door. The cable then attaches to the hanging bracket at the end of the track. Knowing the spring s length can help you find the wire size on the chart above. This is true even if you have a garage door opener.

This is the wire size. Durability of the spring.