1 divide the total spring s ippt by the cable drum multiplier 2 multiply the spring ippt by the number of turns and then divide by the hi moment arm.
How to determine garage door tension force.
If the tension is too loose the springs that help lift the.
The spring to your right is a left wound spring and the spring to your left is the right wound spring.
In order to order new garage door torsion springs you will need to measure as accurately as possible your current spring s and find the.
This is sometimes referred to as the spring s lift power how much weight the torsion spring can lift.
All tension must be released from springs before any work is performed.
Spring length how long each spring is 4.
The spring s individual measurements are also important they determine the spring s lift.
When the garage door is open the spring is in its equilibrium state natural condition.
Continue making minor adjustments with the cable and testing the door until it s correct.
Inch pounds per turn.
On the contrary it is very simple to determine the winding type of a garage door spring.
Measure the distance from the top of the closed door to the bottom of the horizontal track.
Force spring exerts per 1 turn of the spring.
Use this method if the door worked correctly before the spring s broke and the garage door has not been tampered with.
Torsion springs and garage door weight torsion springs need to provide enough force to equal the weight of the door.
Spring orientation only worry about this if you have a 1 s.
Inside diameter 90 of doors have a 2 0 inside diameter 3.
With most new garage doors there will be two torsion springs separated by a divider that s located at the midpoint of the door.
You need proper tension on a garage door to operate the door by hand or with an automatic opener.
Determine if your door is opening and closing the way you would like and ensure it s balanced closes evenly and without gaps.
This video applies t.
Thus they have their end of wire on the right side.
On the other hand a left hand winding spring is wound in an anti clockwise direction and has its end of wire on the left side.
This method of measuring your torsion spring requires you to measure the existing springs.
During the twisting motion of the torsion spring it exerts the force required in order to keep the door balanced and light to operate.
So if the spring to your left is broken you want to order a right wound spring.
