How Many Times To Turn Garage Door Spring

On standard lift doors the formula is dh dc 1 or the door height in inches divided by the drum circumference in inches plus one.

How many times to turn garage door spring.

You can find vertical lift doors normally in commercial and industrial applications such as on loading docks. Force spring exerts per 1 turn of the spring. As a matter of fact it took nine full turns 36 quarter turns of the original spring to get the door to balance. Measure the distance from the top of the closed door to the bottom of the horizontal track.

1 75 means the inside diameter is 1 inches. The original installer did not use a strong enough spring. This video applies t. 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.

That is unless it s a reverse torsion system which we are not going to discuss right now. In most cases you can determine the wind of your garage door torsion spring by using the color coded system on the cones at the end of the spring. Instead they end up either overwinding or underwinding the torsion spring. In case of doubts on how many times you need to turn the spring contact a technician for guidance.

When you count 30 turns you should know that you have completed the remaining five turns. This completes a total of seven spring turns adequate for a standard garage door. If you have an 8ft door then start at 34 quarter turns. Trained garage door technicians learn to master this calculation.

We also carry the full line of liftmaster electric garage door openers and their accessories to meet all your everyday needs. Inch pounds per turn. Doing so will eventually ruin your garage door opener. Garage door spring wind direction color chart.

If you cannot find the size. 2 means the inside diameter is two inches etc. If you experience problems during the installation of your garage door contact us. Torsion spring inside diameter and overall length in many cases the inside diameter of the torsion spring will be indicated on the stationary cone in between the two springs at the midpoint of the door.

After winding the spring you may need to add or subtract a quarter turn or more. To know how many times to wind a garage door spring you need to use an exact formula. Most people do not. I made the calculations for the correct spring ordered them and now the door balances with 7 full turns 29 quarter turns.