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How to replace the garage door extension spring?

Views:46 Author:Site Editor Publish Time:2023-04-11 14:11:37 Orgin:Site

A garage door's springs balance the door's weight so that you can open and close it effortlessly, whether by hand or with a motorized opener. With time, the springs supporting your garage door's weight may wear down, and you might need to replace them. A sudden, unexpected snapping sound could startle you in this situation.

However, this is obvious in most cases after you open the garage doors. If the door's springs break, the door will feel significantly lighter when lifted. The electric opener will also make a noise as it strains to lift the doors without the assistance of the spring.

The steps involved in replacing garage door extension springs are detailed here. Warning: working with coiled springs is not for the faint of heart. Thus, use a garage door maintenance specialist if you have limited DIY or comparable professional expertise.


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Extension springs 


Some extension springs are placed just above door rails that run perpendicular to the ceiling. Pulleys maintain pressure on the cords that lift and lower your garage door, and their one or two ends are linked to the rear track hanger. You should weave a second batch of safety cords around the coils of the extension springs to hold them in place if the springs snap.

By lengthening, extension springs maintain cable and pulley tension. The springs can have a pulling force of anything from fifty to four hundred and forty pounds.

Their length is another defining characteristic, with measurements given regarding the fraction of a garage door's height corresponding to one inch. The typical lifespan of an extension spring is 10,000 cycles, but you may find springs with a lifespan of up to 20,000 cycles if you want to spend a little more money.


Garage Door Extension Springs: How to Replace Them


Step 1: Get new extension springs.


Get a new set of springs identical in size and tension to the previous ones. Often, 7- or 8-foot-tall doors will be the ones for which they are recommended. You can buy them as individual springs or as part of a set with brand-new cables, pulleys, and installation hardware. While replacing the springs, it's also a great idea to repair any other worn components.


Step 2: Prep your garage door.


The garage door must be fully open, and C-clamps must be attached to both tracks to keep the door from closing on you while you're working. You can also use a long brace to block the door's bottom. You should also unplug your garage door opener so it can't be mistakenly triggered.


Step 3: Remove the spring


Remove the first extension spring's bracket from the door track's back (it's the one furthest from your door).


Step 4: Detach the lift cable


Pull the lift cable out of the bracket above the door opening, where it attaches to the door rail. Separate the movable pulley from the spring's end and unwind the slack cord from the pulley.


Step 5: Detach the safety cable.


Remove the safety cord from the spring. The removal of the garage door spring is now possible. To replace the other door's spring, simply repeat steps 3-5.


Step 6: Attach the safety cable.


Now, you'll need to attach the end of the new safety cable to our track brackets and thread the line through the spring.


Step 7: Attach the lift cable.


You should fasten the new spring's fixed end to the door track and the adjustable pulley. Assemble the cable by threading it through the bracket on the door track, then up and over the stationary pulley, and finally looping it through the movable pulley at the spring's end.

Finalize the cable's connection to the track bracket by gently stretching the spring before tightening the nut (though not more than 1-2 inches). You must repeat steps 6 and 7 for the opposite door's spring.


Step 8: Spring Testing and Lubrication


Garage door springs will benefit from a light coating of spray lubrication. After disconnecting the C-clamps and plugging in your garage door opener again, ensure the door opens and closes smoothly. Since the new springs may be stronger than the previous ones, the lifting power of the door opener may need to be adjusted.


Take away


Assume you have not learned how to replace garage door extension springs despite having researched extensively. If that's the case, just give an expert call and set up a time for a free consultation.