Extension springs are used to operate overhead doors and can be found in various locations. They are positioned along the ceiling and are attached to the door via pulleys and cables. Manufacturers set the initial tension based on the door’s size and design. Extension springs should only be installed or serviced by experienced professionals to avoid injury or property damage. Regular inspection and lubrication can improve their operation, and both springs should be replaced at the same time.
An extension spring is a tightly wound spring mechanism used to operate an overhead door. These springs can be found on many types of spiral doors, including those found in residential garages, auto shops, and warehouses. In a standard garage door application, the extension spring is positioned along the ceiling. This type of operating system provides an alternative to torsion springs, which fit into the gap just above a closed garage door.
Many overhead doors use tracks that run vertically from the floor to the top of the door opening, then continue horizontally along the ceiling. In this standard application, installers place a pair of extension springs on the ceiling between the rails. When the door is closed, these springs are fully extended and at their point of maximum tension. As the door opens, each extension spring contracts and the tension is reduced. The springs are attached to the door via a series of pulleys and cables, which are used to operate the door manually or remotely.
Garage door manufacturers set the initial tension of these springs based on the size and design of the door. By varying the wire size, length or diameter of the spring, manufacturers can match the extension spring to the door to ensure effective and long-lasting operation. Each end of the spring has a hook or clip that allows the installer to easily attach it to surrounding components. These hooks can be stationary or stationary depending on the design of the door.
Over time, extension springs can wear out or stretch, which can lead to difficulty opening or closing the garage door. Due to the high tension contained within an extension spring, these springs should only be installed or serviced by experienced professionals. Inexperienced installers can cause serious injury to themselves or others while attempting to work with these springs. Even in cases where no one is injured, springs can still cause property damage if mishandled.
Squeaky or noisy springs can be sprayed with lubricant to reduce friction and improve operation. These springs should be inspected regularly for signs of damage, including loose or frayed wires. Homeowners should always replace both springs at the same time, as a damaged spring is a good indication that the other is reaching the end of its life. Also, replacing just one spring exposes the other to different forces and stresses than before, which could cause the spring to break.
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