An extension spring counterbalance system consists of a pair of stretched springs running parallel to the horizontal tracks. The springs lift the door through a system of pulleys and counterbalance cables running from the bottom corner brackets through the pulleys. When the door is raised, the springs contract, thus lifting the door as the tension is released. Typically these springs are made of 11 gauge galvanized steel, and the lengths of these springs are based on the height of the garage door in question. Their lifting weight capacity can best be identified by the color that is painted on the ends of the springs. https://m.youtube.com/e/Z_eZc-kh40c
While it would be wonderful if door springs lasted forever, the reality is that the simple act of opening and shutting the door multiple times every day isn’t easy. It’s hard on the springs, even though they’re built to do it. Most springs will last for a while, but they won’t last forever. The regular wear and tear of endlessly opening and shutting the door breaks them down and eventually, they’ll need to be replaced.
The winding and unwinding is done at a metal fitting, called a winding cone, attached to the outside end of the spring. You stick a winding bar into one of the four holes in the cone and use the bar as a lever to turn the cone. Once you've completed a quarter turn, insert the other bar into a different hole in the cone and let the bar lever against the closed garage door to hold the spring tension. This allows you to move the original bar to repeat the process, alternating the bars with each quarter-turn. It takes about 30 quarter-turns to fully tension a standard torsion spring.
9.13 If you have a spring anchor bracket with a fixed steel bearing, check for wear at the point where the shaft and bearing race meet. The shaft needs to be free to slide sideways inside the bearing. File the shaft if needed. Lube the bearing. Notice that only one bearing is needed for two torsion springs. This bearing keeps the shaft from rubbing against the inside of the stationary cones and on the center bracket. Your garage door may not have a center bearing. If so grease the shaft where it will be rubbing the bracket and the insides of the cones.
Since most yards entertain play activity including baseballs and other sporting equipment, it's no surprise that garage doors experience broken glass from time to time. Regardless of the cause, it's important to repair glass quickly, since broken glass in a garage is a safety issue, a security problem, and an invitation to every bird and insect in the neighborhood to take up residence in your garage. Fortunately, it's not difficult to replace a pane of glass. The techniques are exactly the same as for replacing glazing in a house window.
When it comes to garage doors, functionality and safety are equally important in the eyes of Sears Garage Door technicians. Our associates know the importance of garage door safety and the hazards that a faulty garage door can pose for your family. To confirm that your garage door and opener operate safely, our technicians perform a 20-point safety check during maintenance calls and repair jobs. This safety check verifies that any repair work performed has been done correctly and that there are no lingering safety problems with your door and mechanisms. If our technician discovers any safety concerns, he’ll advise you on the best way to proceed with correcting the problem.
Step 1: Check the metal tracks inside the garage. Look at the mounting brackets that hold the tracks to the walls. If they're loose, tighten the bolts or screws at the brackets. Working inside the garage with the garage door closed, examine the tracks for dents, crimps, or flat spots. If there are any damaged spots, pound them out with a rubber mallet, or with a hammer and a block of scrap wood. If the tracks are badly damaged, they should be replaced.
Repair Sagging Garage Doors – As doors and homes age, they can shift and move and sometimes this results in a garage door that needs to be realigned or reinforced. We will send a technician to your home to adjust the doors and to inspect the entire opening to make sure the door isn’t damaged. Once we understand the problem, we will fix the needed parts and make any adjustments to the door.
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Align the upper roller tracks by carefully lifting the door halfway. Lock it in place with two locking pliers, and install the supporting brackets on the back of the rails using 1-1/4 in. perforated angle iron (available at home centers and hardware stores). Install 1-1/2 x 1/4 in. stop bolts, with the threads to the inside of the track, at the end of each upper track.
If one of your door springs just broke and you are looking for instructions to decide if you can change the spring or springs safely and correctly, this page should help. DO NOT OPEN AND CLOSE YOUR GARAGE DOOR. Wooden garage doors are heavy and will probably damage or ruin the opener. The tops of steel doors often bend when operated with broken springs.
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Extension springs last 15,000 cycles. Every time the door goes up and down is one cycle. On average extension springs will last 7 to 12 years. For most people, you know you need to replace your extension springs because it snaps. Sometimes, however, when extension springs get older, they can lose their tension and the spring becomes elongated. This is rare but it does still happen. Basically, the coils are fatigued and when the door is up you can see gaps where the spring is not relaxing properly. When this happens, the spring is useless. It is best to replace the springs at this point rather than overworking the opener which will cause it to last a shorter life.
If your garage door goes up and down in a jerky motion, you might have one broken spring on a two spring system. Some garage door openers are strong enough to lift a door with only one good spring. The “herky jerky” motion is especially common with garage doors equipped with extension springs. It might be something as simple as lubricating your garage door pulleys, hinges, and rollers. When in doubt or if something doesn’t feel right about your door, call a service company to have it serviced.
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When I called to schedule the repair service, I was transferrd 5 times and spoke with 6 service reps. Each rep was very confused by my request to get my garage door repaired. One rep actually told me that Sears doesn't repair garage doors. I had to tell her that Sears installed the door. When I finally found a rep who could schedule my service, it took one week for the appointment. https://www.youtube.com/watch?v=Z_eZc-kh40c&feature=youtube_gdata
8.5 Inspect the bearing. Lube it with motor oil, spray lithium, or spray lubriplate grease. Do not use WD-40. If the shaft is worn and the bearing is seized and you can't free it, replace the bearing. Or, if you have bearings labeled "ADH" we recommend replacing them. I find very few other bearings that need to be replaced. However, if you do need to replace the bearing and you do not have a new one, you can replace it at a later date. You'll find a quick way to do this at our End Bearing Plate Replacement instruction page.
Eric Jonas has been writing in small-business advertising and local community newsletters since 1998. Prior to his writing career, he became a licensed level II gas technician and continues to work in the field, also authoring educational newsletters for others in the business. Jonas is currently a graduate student with a Bachelor of Arts in English and rhetoric from McMaster University. https://youtube.com/v/Z_eZc-kh40c