They extend when the door is lowered and closed and retract as it opens.
Side garage door springs.
Usually you will have two springs on your door which will be color coded.
Most of the time the end on the right hand wind is red and the left and wind is black as you can see on the graphic below.
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.
Four p730 springs two on each side of the door can handle a 150 lbs.
A garage door generally has two extension springs one on each side of the door and runs parallel to the track.
There are two at either side of the door to help with the tensile strength of each spring even though the extension is separate from one another.
Garage door springs springs are a major part of your garage door unlike other components if a spring breaks you need to replace it to keep your garage door functioning and operating properly.
Both the winding and stationary cones are professionally installed for safe operation.
All dura lift springs meet the dasma standard rating of 10 000 plus door open and close cycles.
Either 4 c hook s or 4 w hook s sold separately are required to connect the springs to the jamb hardware.