Other problems frequently ensue when a single spring is used on a double car garage door.
How many turns on a 12x10 garage door double spring.
You can find vertical lift doors normally in commercial and industrial applications such as on loading docks.
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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.
After winding the spring you may need to add or subtract a quarter turn or more.
If the spring breaks near the stationary cone a large portion of the spring spins loose with the winding cone secured to the shaft.
Give home owners options when it comes to replacing garage door springs.
Force spring exerts per 1 turn of the spring.
If you disconnect the door while it is aloft you risk the several hundred pound door crashing to the ground due to the lack of the support of the torsion springs.
Require only one spring.
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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.
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This completes a total of seven spring turns adequate for a standard garage door.
Check for a straight line drawn across the length of the spring s.
Measure the distance from the top of the closed door to the bottom of the horizontal track.
Many manufacturers have cut costs by using a single spring on a double wide 16 steel garage door.
If you suspect that a torsion spring on your door has broken do not disconnect the garage door by pulling the red emergency release handle while the door is in an open position.
First the weight of the.
Garage door spring wind direction color chart.
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.
Number of turns needed to wind a torsion spring.
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If no line is present draw one using a piece of chalk.
After inserting the two winding bars all the way into the winding cone wind the springs 1 4 turn at a time in an upward direction as shown in fig.
Inch pounds per turn.
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.
