Multiply the wire diameter by the total number of coils in the spring.
How many turns for garage door torsion spring.
We will see with you what.
After winding the spring you may need to add or subtract a quarter turn or more.
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.
If you experience problems during the installation of your garage door contact us.
Always convert torsion springs to a spring of equal or greater wire diameter.
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Measure a length of the spring then divide by the number of coils within that length.
Multiply the number of turns by the wire diameter to find spring growth.
When you count 30 turns you should know that you have completed the remaining five turns.
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In case of doubts on how many times you need to turn the spring contact a technician for guidance.
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The stretch of an extension spring is always the door height.