They are mounted in pairs onto a horizontal shaft that’s connected to a cable drum at either end; brackets at each end support the shaft, and a center bracket separates the pair of springs. Instead of stretching, torsion springs work by tension. They are installed under tension—wound up tightly on the shaft. wall console They are installed under tension—wound up tightly on the shaft.
When the door is closed, the springs are put back into tension again. carriage house doors Torsion springs generally have a longer service life than extension springs, averaging 15,000 to 20,000 cycles. Both types of springs are color-coded with a touch of paint at either end to indicate their pulling strength and their length, which should be matched to the weight and height of the garage door. Both types of springs are color-coded with a touch of paint at either end to indicate their pulling strength and their length, which should be matched to the weight and height of the garage door.
There are two primary cables involved in garage door operations: lift cables and retaining cables. To correct any kind of cable issue, it’s important to know which specific cable is damaged and what type of repair or replacement may be required. For those not well versed in garage door mechanics, attempting to fix a broken cable can be very dangerous.
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