How To Determine Garage Door Tension Force

Inside diameter 90 of doors have a 2 0 inside diameter 3.

How to determine garage door tension force.

During the twisting motion of the torsion spring it exerts the force required in order to keep the door balanced and light to operate. This is sometimes referred to as the spring s lift power how much weight the torsion spring can lift. When the garage door is open the spring is in its equilibrium state natural condition. If the tension is too loose the springs that help lift the.

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 video applies t. Determine if your door is opening and closing the way you would like and ensure it s balanced closes evenly and without gaps. Force spring exerts per 1 turn of the spring.

You need proper tension on a garage door to operate the door by hand or with an automatic opener. The right hand winding springs are wound in a clockwise direction. Inch pounds per turn. This method of measuring your torsion spring requires you to measure the existing springs.

The spring to your right is a left wound spring and the spring to your left is the right wound spring. Thus they have their end of wire on the right side. Spring orientation only worry about this if you have a 1 s. Spring length how long each spring is 4.

With most new garage doors there will be two torsion springs separated by a divider that s located at the midpoint of the door. 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. Continue making minor adjustments with the cable and testing the door until it s correct.

All tension must be released from springs before any work is performed. 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. When the garage door is closed the torsion spring is in its deflected condition torqued up. So if the spring to your left is broken you want to order a right wound spring.

The spring s individual measurements are also important they determine the spring s lift. 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.