Plug end extension spring is a p528 28 in.
Tighten garage door extension springs.
Always move the hooks on both the springs equally.
Two p528 springs one on each side of the door can handle a 105 lbs.
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.
Push the door up as far as you can to release the tension on the springs.
Use two pair of vice grips or two c clamps to clamp the track below the roller.
Perform the same step on the other side and test the door.
To keep the door from falling it must be clamped to hold it in place.
Spot the bar that runs parallel to the top of the garage door and has 2 springs on it.
If your garage door is hard to open you most likely need to reduce the tension.
Raise the door and release the garage door opener.
A few years back i narrowly avoided being hit by a spring that snapped.
The bar also has a pulley at each end through which the garage door cables that open and close it pass.
The cable is attached to the door and runs to an s hook that attaches to the track support.
Look at the wall just above the garage door.
To make fine adjustments try adjusting the lifting cable instead of the spring.
How to fix garage door tension.
You want an overhead garage door to operate easily and safely neither putting undue strain on a garage door opener or you.
With the door propped open take the s hook out of the support and tighten or loosen the cable as needed.
To do this move the hook in the opposite direction toward the door framing.
Door with an initial tension of 165 lbs.
In this video you ll learn how to spot and replace a garage door extension spring.