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Alleffra Searlait Garage Door December 09, 2017 06:07:12
In the past the biggest concern with operating an overhead garage door was the potential risks associated with the springs used for balancing the door weight. Pre mid 1960 s garage door installations typically relied upon a pair of stretched (tensioned) springs to assist the operation of the garage door pivoting hinges. These springs became loaded (tensioned) as the door was moved into the closed position. Unloading (releasing) of the stored spring energy occurred as the door was opened to the horizontal overhead position. One of the most dangerous aspects of these spring systems was that after a period of time often without any maintenance or inspection the points of attachment of these springs would rust or become weak. This weakening of the springs or points of attachment would often lead to an inadvertent explosive failure flinging the broken spring components across the garage embedding the spring or steel components into the garage walls cars or other items in the path of travel. Unfortunately sometimes people were in the path of travel of these explosive occurrences. As these springs failed as an attempted safeguard some manufacturers devised a "caging" system for the springs. These cages were retrofitted onto the stretched springs in an attempt to capture the parts that would release if a failure occurred. While these caging devices were helpful they were not completely effective. Some of these spring devices are still in use today. Whenever this condition exists or the quality of garage components are questionable a qualified professional service technician should be consulted.
The spring is perhaps the most undervalued part of a garage door initially but makes its value known very quickly. Low-cost doors tend to use extension springs. Make sure an internal safety containment cable is included in case of breakage. Springs tend to be the first part of the garage door to need service or replacement. Many springs are tested to operate between 5,000 to 10,000 cycles while some manufacturers make a spring that will last up to 30,000 cycles or more. That s a wide difference in longevity and value when you add it up. Most homeowners use their garage doors up to 3,000 times per-year so a 10,000-cycle spring could break within 3-4 years. Replacement usually costs $150 - $250. Check the manufacturer s warranty on the spring. Never buy a door with only a one-year warranty on the spring.