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The four specific items required to purchase the correct replacement Mini Warehouse garage door torsion spring.
#1 Wire Size
#2 Inside Diameter
#3 Length of spring
#4 Wind of spring (Right or left wound)
A springís wire size can be determined by several different tools or techniques. Use of a caliper, micrometer, or wire gauge are common ways to determine a springís wire size. If none of these tools are available, simply measure ten coils of wire to the nearest 1/16th of an inch, and refer to the Spring Wire Chart. The spring must be tightly compressed, with no gaps. Itís also a good idea to measure twenty coils as a double check.
Measure the inside diameter to the nearest 1/16th of an inch.
LENGTH OF SPRING:
Measure spring length with the spring in its unwound state. In the case of a distorted or broken spring, simply count the total number of coils and multiply by the wire size. 120 coils x .250 wire = 30" 120 coils x .375 wire = 45"
RIGHT OR LEFT HAND WOUND:
To ensure the correct wind, please refer to the Winding Chart below. Please remember the side of the door a spring is located on does not indicate the wind of the spring.
LEFT WOUND SPRING AND RIGHT WOUND SPRING RESPECTIVELY
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