Do not include the winding and stationary ends.
Overhead door spring winding chart.
After winding the spring you may need to add or subtract a quarter turn or more.
Measure the overall length of the garage door spring unwound take all your measurements from the broken spring.
Measure the spring only from coil to coil.
Step 2 measure the inside diameter of the your garage door spring it will be one of the following.
You can find vertical lift doors normally in commercial and industrial applications such as on loading docks.
This video applies t.
3 3 8 or 3 3 4 step 3.
Install new or use this pair of left install new or use this pair of left and right wound torsion springs to replace broken sectional garage door torsion springs.
Each torsion spring consists of spring coils stationary cone and a winding cone fig.
Determine the wire.
All dura lift springs meet the dasma standard rating of 10 000 plus door open and close cycles.
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The spring coils are color coded depending on the spring size and the winding cone is color coded separately either red or black.