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Maintaining garage door cables

Published On: May 29 2012 03:11:45 PM CDT
Updated On: Jun 14 2012 01:07:53 PM CDT

By KMS Woodworks, Networx

The cables on your garage door are designed to be strong, yet flexible; this allows them to carry the heavy load of the door and still roll over pulleys or be wound onto a drum. Garage doors will typically have either torsion spring systems or extension spring systems. Which system you have will dictate how much wear and tear your garage door cables will experience.


Torsion Or Extension Spring Cables

Homeowners need do know whether they have a torsion or extension spring system in order to understand the dangers involved with replacing garage door cables, should it become necessary. Torsion spring systems have a spring, or pair of springs, that are located above the door and run parallel to the door. Here, the garage door cables are wound around drums that are located at both ends of the spring shaft. As the spring "unwinds," the cables are pulled up and wrap around the drums. The cables run vertically from their connection point near the bottom of the door to the drum. This simple, straight cable run will last for years without much need for maintenance, but should be inspected regularly.


When you inspect your garage door cables, look for kinks or frayed portions. If frayed areas are found, look for what might have caused this damage. A protrusion in the cable path could be the cause and needs to be corrected to prevent future damage. It is also important to keep the cables free of accumulated debris and to avoid heavy lubricants, as these can attract dirt.


Get Help With Torsion Systems

If your garage door cables need replacement and you have a torsion system, it is best to have a professional perform this task. Torsion springs store a lot of potential energy - after all, they do the majority of the work in lifting the door and must be "unloaded" to allow the cable to be replaced. This is a task that can be very dangerous if not done properly. Some caution here and professional help will ensure that no one gets hurt.


Extension Systems: Better For DIY Types

Garage door cables on extension systems are simpler to replace, but some caution should still be used. Here, the springs, which are mounted parallel to the track, pull a pulley backward to provide lift for the door. When the door on these systems is in the raised position, it is fairly easy to remove the load from the garage door cables. When working on extension systems it is important to secure the door in the raised position before releasing the spring's tension: This keeps the door from crashing down unexpectedly and will make your project go much more smoothly. A pair of "C" clamps secured below the bottom roller is a great way to keep the door in the raised position for this work. Just like in torsion systems, these garage door cables should be checked regularly for kinks and frayed areas. Another area to check with extension systems are the pulleys, as these can see wear from repeated use.


Keeping your garage door cables in tip-top shape is pretty straightforward. Replacing them, however, is a bit more involved and depending on your system, should be performed by experienced professionals. Your job, as chief inspector, is to monitor your garage door cables for signs of wear. Most systems are well designed and should provide many years, if not decades, of trouble-free service.


Source: http://www.networx.com/article/maintaining-garage-door-cables

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