If the door closes but then immediately pops open again, you'll need to check the limit settings, which help the mechanism determine how far to move the door in order to close it properly. If the settings are off, the door will hit the ground before the opener believes it should. It will assume that it has hit an obstacle and will automatically backtrack to avoid damage. Check the owner's manual or the buttons on the motor to adjust the limit settings. It may take some trial and error to get the setting just right.

If you need to leave the door open until you can make repairs, block the door track on both sides so the door can't move, and unplug the garage door opener (if you have one). If you want to close the door, you can try closing it with the opener, making sure there's nothing in the door's path in case something goes wrong. However, this will put some strain on the opener. Alternatively, you can have a few strong helpers hold the door while you disconnect it from the opener and carefully close the door manually—again, it will be very heavy.

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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.
To evaluate whether the problem lies with the door or the automatic opener, make sure the door is in the fully closed position, then disengage the opener trolly from the door by pulling the emergency release cord. Try to lift the garage door by hand. If the door opens smoothly by hand, the problem is with the opener. If the garage door still only opens halfway, the problem is with the door.
Loosen the set screws while holding each spring with a winding bar. Position a sturdy ladder to the side of the springs, rather than working directly in front of them, for safety reasons. Put on eye protection and leather gloves. Push a winding bar into the bottom hole of the winding cone on the outside of 1 spring. Use a wrench to loosen the 2 set screws. Keep a firm grip on the bar as the the spring will expand powerfully as the screws are released. Repeat on the other side.[2]
Garage doors provide one of the major entryways into your home. Therefore, it is essential to ensure that they are secure and in good working order. If you are having problems with your current door, then you need to have a professional determine if it can be repaired or if it will need to be replaced. Here are some of the most common factors that will affect the cost of a garage door repair.

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Slide the left spring onto the tube and add the cable drum. When your new springs arrive, put the new left spring (the 1 with the end facing up and to the left) on the torsion tube, making sure that the stationary cone on the end of the spring faces the center bracket. After sliding the new spring into place, replace the cable drum and insert the torsion bar into the left bearing bracket.[9]

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10.2 Tape your winding bars if you have not done so already, not only to assure that you are inserting the bars completely into the cones as you wind the torsion springs, but more importantly to assure that the bar does not slip out of the cone when you stretch the springs at the end. This has happened to me several times. Professionals always stretch torsion springs after winding them because the shaft floats horizontally between the flexible end bearing plates as the door operates. Although this may be as little as 1/4", the binding of the coils as the garage door closes oftentimes keeps the door from closing completely, especially when the torsion springs and bearings are dry.
"Mile High garage called shortly after submitting my request and set an appointment to have a repair man show up shortly after. They went over everything I needed to get done and gave me several pricing options to fix initial need and alleviate future issues. Work was done in a timely manner and customer service was great. Mile High garage called shortly after submitting my request and set an appointment to have a repair man show up shortly after. They went over everything I needed to get done and gave me several pricing options to fix initial need and alleviate future issues. Work was done in a timely manner and customer service was great. "
10The type of garage door shown provides the necessary lift assistance with a “torque tube.” If you intend to use an opener, wait to install the tube. Otherwise, install the torque tube according to the manufacturer’s directions. Roll up the door about 4 feet to check for the alignment of the tracks, and make any adjustments. Then tighten all fasteners.

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Product was received in two days and was as advertised. Installing these myself saved around $150 but it took around 2-3 hours. I would imagine everyone's experience is going to be different. These springs appear to be heavier duty than the ones they replaced. I couldn't use the same slots for tension as the old ones and it was trial and error in adjusting the length of my pull cable until the door closed as it should. I need to replace the springs on my other garage door and would think that will take less than an hour based on what I learned from the first install.
For commercial or residential doors, operators and accessories outside of the U.S. or Canada you can contact international. ​​​​​​Please be sure to include the following in your e-mail, so we can connect you with the Overhead Door™ Distributor that can best serve you: Contact Person, Phone Number (including local dialing code), Company Name, City and Country, Product(s) of interest (i.e. residential or commercial garage doors, operators and accessories), Name of Project (if any) and Project Specifications.​​​​​​​​​​​​ 

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9.14 Slide the springs to the bracket. Double-check to make sure you have the right wound spring on the left side and the left wind spring on the right side. Turn the springs until the ends are facing you. The wire at the ends of both torsion springs here at the bracket should be pointing down. At the winding cones at the opposite ends, the spring wire points up. If not, reverse the springs. About once a month we get a phone call from a do-it-yourself customer who begins the conversation with, "I wound the garage door spring to about six turns and the spring came loose from the cone." We normally refer them back to this step and suggest they switch their springs.
10.5 If the spring comes loose from the cone at about 6 turns, you are probably winding the spring backward because the springs are on the wrong sides. Switch the springs. Otherwise, after winding the torsion springs, you will need to stretch the springs and secure the winding cone. First, mark the shaft 1/4" beyond the winding cone with tape or with a file. We stretch the springs because the shaft floats horizontally between the flexible end bearing plates as the garage door operates. Although this may be as little as 1/4" the binding of the coils as the door closes often keeps the door from closing completely, especially when the springs and bearings are dry and need lubrication.
"Our garage door wouldn’t shut on sunny days and the tech came out. He explained my options (swap the “seeing” sensor with the other, or replace them). He tried swapping and it was still an issue so he replaced them. In addition, he adjusted the spring because the company that installed it last year did not adjust it properly. He was here for about two hours and charged us for only the sensor replacement. Will definitely be using this company again! Highly recommend them. "

If you have a steel door, but want the look of a wood one, it is not necessary to change your entire garage door. Often, it may be possible to mimic the look of wood with skillful painting. Your local home improvement store may be able to provide good advice about the type of paint and brushes needed to mimic the look of wood for your particular door material.

Thread the cables and tighten the drums. Run the lift cable between the roller and the doorjamb. Slip the lift cable stop through the cable slot on the drum. Then, attach locking pliers to the torsion tube to secure it in place. Spin the drum to wind the cable into the grooves, then tighten the set screws. Repeat on the other side, leaving the locking pliers in place.[11]
These instructions are for doors with cable drums and cables that look similar to those in the picture below. The next part beyond the end of the spring assembly is the cable drum. The drum is cast aluminum alloy 4" in diameter and 12.6" in circumference around the flat portion. Just beyond the cable drum is the end bearing plate. The cable unwraps off the back of the drum between the drum and the garage wall or jamb and travels down alongside the door, inside the track brackets and behind the roller stems as shown.
Jerrod the technician had answers to all my questions. He was very knowledgeable and very patiently explained what was going on with my garage door and the opener. I would definitely recommend A1 garage door service to friends and family. I was given options to either repair the door or replace it. I will get the door replaced when it gets non-functional from A1 garage door service.

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The garage we take for granted very likely stores thousands of dollars worth of tools and household belongings, not to mention your automobiles. Yet this space is typically rather easy for intruders to penetrate. Garage security can be greatly improved by installing a modern garage door opener that features rotating digital codes, which can foil even the most tech-savvy prowlers.
Sometimes, people unplug their power source and then wonder why their garage door opener fails to work. Sounds ridiculous, I know, but it does happen. Make sure that your garage door opener is plugged into a working outlet. Outlets sometimes go out without warning, so you can check to see if the outlet is working by plugging another working electronic device into it. Also, check your circuit breaker, fuse, or GFCI.
Garage door springs come in two styles: torsion (see above), which mounts on the header above the door, and extension (Photo 1), which floats above the upper roller track. In the past, extension springs were safer to install but didn’t have containment cables running through the center of the spring. Without cable, these springs become dangerous, heavy whips when they break. They also tend to be noisier than torsion springs, and we recommend you use them only if you don’t have the 12 in. of headroom above the door that a torsion spring requires. https://youtube.com/watch?v=Z_eZc-kh40c&app=desktop
9.16 If you cannot get the stationary cones to finger-tighten against the center bracket, we recommend installing washers between the winding cone that houses the bearing and the spring bracket. This is a common problem with torsion springs on older Windsor garage doors because their steel bearings are often wider and they extend beyond the stationary cone. Raynor garage doors also have wider bearings that fit properly in their 2 1/4" stationary cones, but washers may need to be installed if their bearings are installed in 1 3/4" or 2" stationary cones, or if some of their older bearings are installed in their newer cones that are installed on older brackets.
Home Depot local Service Providers are background checked, insured, licensed and/or registered. License or registration numbers held by or on behalf of Home Depot U.S.A., Inc. are available at homedepot.com/licensenumbers or at the Special Services Desk in The Home Depot store. State specific licensing information includes: AL 51289, 1924; AK 25084; AZ ROC252435, ROC092581; AR 228160518; CA 602331; CT HIC.533772; DC 420214000109, 410517000372; FL CRC046858, CGC1514813; GA RBCO005730, GCCO005540; HI CT-22120; ID RCE-19683; IA C091302; LA 43960, 557308, 883162; MD 85434, 42144; MA 112785, CS-107774; MI 2101089942, 2102119069; MN BC147263; MS 22222-MC; MT 37730; NE 26085; NV 38686; NJ 13VH09277500; NM 86302; NC 31521; ND 29073; OR 95843; The Home Depot U.S.A., Inc. is a Registered General Contractor in Rhode Island and its Registration Number is 9480; SC GLG110120; TN 47781; UT 286936-5501; VA 2705-068841; WA HOMED088RH; WV WV036104; WI 1046796.
The spring is the most common part to break. It is responsible for supporting and lifting the heavy weight of the door, making it easier to be opened manually. A broken spring is the most unwanted thing a homeowner would ever want to happen especially during weekdays when everybody is busy and needs to rush to school and work. It is not advisable to open the garage until the broken parts of the door has been replaced.
If you need to leave the door open until you can make repairs, block the door track on both sides so the door can't move, and unplug the garage door opener (if you have one). If you want to close the door, you can try closing it with the opener, making sure there's nothing in the door's path in case something goes wrong. However, this will put some strain on the opener. Alternatively, you can have a few strong helpers hold the door while you disconnect it from the opener and carefully close the door manually—again, it will be very heavy.

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Overhead Door Company of Central Jersey has been in the garage door industry since 1972. Our proficient service technicians offers the best installation, maintenance and replacement for your garage doors and parts. You can check our our Before and After residential garage doors photos for reference. Kindly click on "Schedule at-home appointment" below to get started.

Jerrod the technician had answers to all my questions. He was very knowledgeable and very patiently explained what was going on with my garage door and the opener. I would definitely recommend A1 garage door service to friends and family. I was given options to either repair the door or replace it. I will get the door replaced when it gets non-functional from A1 garage door service.

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When you hire a professional, the first thing they will do is turn off the power as a safety precaution.  They will then measure the existing door springs to make sure the new springs they order or have in stock fit accordingly.  With these new springs, they will unwind the existing springs and install the new ones in its place, tightening them with screws.  When tightened, the springs will be balanced, lubricated and the springs will be wound up.  Lastly, the door will be tested and the tracks will be lubricated to move efficiently.


If your garage door is equipped with extension springs (usually seen on single car garages), the cable and pulley might be hanging down when the spring break's. Extension springs use a two pulley system on each side of the door to lift the garage door up and down. When the spring break's everything goes haywire, causing the cables to become twisted or even frayed when they catch on the metal edge of the track. There is a lot of force being released when a garage door spring breaks.
7.5 Slide both springs out toward the cable drums. This is often the hardest part of the job. You may need to file away swollen shaft, set screw burs, drywall or paint. If the shaft is distorted because the garage door installer overtightened the set screws, file the shaft, insert a bar into the cone and tap the bar with a hammer until the cone passes over the enlarged portion of shaft.
Annual maintenance. Make an annual check of all nuts and bolts on rails and rollers to make sure they’re firmly tightened. Check the condition of all cables to make sure they’re not worn or frayed. Lubricate rollers and springs with a garage-door lubricant (see How to Fix a Noisy Garage Door for maintenance and problem-solving tips). The door should operate smoothly and be properly balanced. Check the balance by disconnecting the opener and lowering the door halfway- the door should hold its position. If it doesn’t, adjust the spring tension or replace the springs.

10.4 Raise the second bar 90 degrees and insert the first bar. This is "three." Continue winding. If the spring shortens in length, unwind the spring and switch sides - the springs are on backward. Otherwise, continue winding until you reach a count of "30." This is 7 1/2 turns, which is normal for most 7' doors. Longer life springs are wound the same number of turns. Newer steel doors with only one strut on top often need only 7 1/4 turns. On 8' doors count to 34. Each time you insert a bar into the winding cone, listen for the click to let you know the bar is in all the way. Not inserting the bar all the way could cause the cone to explode.	 http://www.youtube.com/watch?v=Z_eZc-kh40c&feature=kp

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.
Garage door springs don’t require extensive care and maintenance. However, they also can’t be left entirely to their own devices. Spraying the springs with WD-40 is a good place to start. It’s also a good idea to check the balance of the garage door every year. To do this, simply lift the garage door up about halfway and let go. If the springs are in good working condition, the door should remain still. If the springs are beginning to weaken, the door might sag or fall. By taking these basic steps, you can preserve your door springs for longer.
In this article, we’ll tell you the difference between a safe door and one that’s unsafe. We’ll also give you the helpful tips you’re not likely to find in the manufacturer’s instructions to correctly, and safely, install a new garage door with a torsion spring and do-it-yourself tensioning. Installing a new, double garage door yourself will save you several hundred dollars and should take eight to 12 hours if you’re fairly handy. You can do most of the new garage door installation project yourself, but you should recruit help for removing the old door.
6.8 Properly tightened screws will loosen with less than a turn. Once you loosen a set screw, keep at least one bar in the cone AT ALL TIMES until the spring is fully unwound. Many cones have been over-tightened. The spring may unwind 1/4 turn and not unwind any more until one of the set screws is loosened some more. You may need to completely remove the set screws. The shaft may be distorted and the cone still may not unwind at all.
My garage door has been acting up. Not wanting to work sometimes. I noticed the blue light flashing on the opener when I push the remote button. Today it will not open. That is the only way in, so I can't go in the garage from inside the house. I can't pull the cord to release the belt drive. How do I open it now? I never did run wires to the manual button into the house. I have to use the opener. Only have one I can find now. It is not working. I need in there now.

Guest 9232954 -- check out the other answers for this question, and the links below the answers for even more - seems from $125-400 range from different contributors (should be replaced in pairs for balanced lifting unless one spring is quite new), about $200-250 or 300 seems a common charge. The springs themselves generally run about $20-50 each depending on lead they have to carry.

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A garage door is a large door on a garage that opens either manually or by an electric motor (a garage door opener). Garage doors are frequently large enough to accommodate automobiles and other vehicles. Small garage doors may be made in a single panel that tilts up and back across the garage ceiling. Larger doors are usually made in several jointed panels that roll up on tracks across the garage ceiling, or into a roll above the doorway. The operating mechanism is spring-loaded or counterbalanced to offset the weight of the door and reduce human or motor effort required to operate the door. Less commonly, some garage doors slide or swing horizontally. Doors are made of wood, metal, or fiberglass, and may be insulated to prevent heat loss. Warehouses, bus garages and locomotive sheds have larger versions.
Does your door stop when going up? Does your look crooked? Can you see a break in the spring that runs along the side of the tracks? You might have a broken extension spring. Extension springs are generally used on smaller doors like an 8×7 or a 9×7. Extension springs are attached to the bracket that holds the horizontal track to the ceiling. The extend as the door goes down and with one broken the door cannot work properly. Typically one spring is broken and the other is not, however, we would replace both. They have both been used the same amount and springs break based off of usage. https://youtube.com/watch?feature=youtube_gdata&v=Z_eZc-kh40c
Just like on a bike sprocket, your cables can sometimes become disengaged. Oftentimes, when a torsion spring breaks, the garage door cable will snap as a result. Sometimes, the cable will cause damage to a vehicle or wall, and if a person happens to be in the way of the cable it can cause serious harm. If you cables have snapped, you should call a professional to help you. See the video above.
With over 300 independently moving parts, your garage door is a deceptively complex piece of equipment. To help prevent malfunctions and break-downs, it is a good idea to occasionally perform a garage door tune-up to keep all of these parts in good working order. A regular tune-up service by a Sears professional can prevent unexpected door problems and prolong the life of your existing equipment.
Garage door manufacturers typically produce garage doors fitted with torsion springs that provide a minimum of 10,000 to 15,000 cycles and are guaranteed for three to seven years. One cycle is a single opening and closing sequence. Most manufacturers offer a 30,000 cycle spring. However, it is important to remember that if the weight of the garage door is increased by adding glass, additional insulation, or even several coats of paint, the life of the torsion spring may be greatly reduced. Additionally, springs at highly humid environments, such as coastal regions tend to have a significantly shorter cycle life, due to the corrosive cracking.

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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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8.10 Double-check to make sure you have the correct wind on your new torsion spring. On the left side next to the winding cone the end of the spring wire should be pointing up if it is facing you. Notice, also, that the cone is red which usually designates right wind. Customers frequently call and explain that when they get about six turns on the springs they spin on the cones. This is due to installing the springs on the wrong sides of the center bracket.

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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We have the best team of expert professionals who know how to handle each and every type of garage door and its components. This is because all of our technicians go through a rigorous train-ing process, covering every known garage door repair technique. We do not let them onto the field until we know that they are completely trained, and can perform a job to perfection. Aside from this, they are continually updated with all the latest knowledge, information and training in order to do their work efficiently.

9.8 Twist the garage door shaft to tighten the cable on the drum. While twisting, vise grip the shaft as shown to keep the cable tight on the drum. The top of the vise grip should be tight against the garage header. This will keep the cable snug on the first drum while you install the cable on the other drum and position it in place. It also keeps the shaft from turning and the cables peeling off when you wind the springs. That one grip can save many hours of walking back and forth and having to level and re-level the garage door after winding the torsion springs.

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If you have a single-car garage, an extension spring will do the job. If you’re looking for a smoother motion and an ability to lift heavier doors, you may be better off selecting the torsion spring option. And if you have a two-car garage, your door will likely be too heavy for an extension spring. In this case, the torsion spring is the better choice.
Does your garage door stop when it is going up? Did you hear a loud bang, similar to a gun shot? Do the torsion springs above your door seem separated? If so, you might just have a broken torsion garage door spring. Torsion springs are located above the garage door and they are what lift the actual weight of the garage door. Most doors weigh between 150 to 250 pounds and without working springs, the garage door opener cannot lift the door. Attempting to use a garage door opener to lift a garage door with a broken spring can cause numerous parts on the opener to break.
Hiring a professional to handle garage door spring repair and replacement tends to be a much easier and safer option for homeowners. Removing or repairing garage springs can be a dangerous job, but professionals have the experience and equipment to do it safely and efficiently. Unless your springs only need a minor repair, such as lubrication or fixing a minor balance issue, be sure to call in a local garage door pro to do the job.

With Garage Door Doctor, you can rest assured we will replace your springs correctly. We offer 2 types of springs – standard and high cycle. On a 7 foot tall door, our standard torsion springs will last 15,000 cycles and our high cycle torsion springs will last 50,000 cycles. How many years will this last you? That is based off only one thing – usage. For example, with standard torsion spring, if you use your door 4 times a day, you get just over 10 years of life. However, if you use your door 8 times a day, you would get just over 5 years of life. If you use door very little or if you are moving very soon, maybe standard springs would be best for you. If you use your door many times a day or if you don’t plan on moving for a while, high cycle springs would be best for you. Getting high cycle springs will ensure you won’t be stuck with a broken spring for many years to come. Either way, both types of torsion springs we offer work great – its just a matter of when the break again. Call Garage Door Doctor today to have your garage fixed properly!
Standard torsion springs (about $40 each) have a service life of 7,000 to 10,000 open/close cycles. However, you can buy double-life (25,000 cycles) replacement springs for about $65 per spring. If you have a two-spring setup and one spring breaks, the second spring will break soon. So replace them both at the same time. To get the right springs for your door, you'll have to provide the supplier some details. Here's how:

Annual maintenance. Make an annual check of all nuts and bolts on rails and rollers to make sure they’re firmly tightened. Check the condition of all cables to make sure they’re not worn or frayed. Lubricate rollers and springs with a garage-door lubricant (see How to Fix a Noisy Garage Door for maintenance and problem-solving tips). The door should operate smoothly and be properly balanced. Check the balance by disconnecting the opener and lowering the door halfway- the door should hold its position. If it doesn’t, adjust the spring tension or replace the springs.
We have had many concerns with our garage opener unit both safety issue and sleepless nights. At this time we are pleased that so far the unit is operating as it should.Hopefully we hope the issue of the unit opening by it self at early morning hours is solved. And if this is so, we want to Thank all involve in bring a satisfactory solution to this nightmare.

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9.4 Slide the end of the shaft into the end bearing plate. Tighten the set screws an additional 1/4 to 1/2 turns beyond the point you finger-tightened them. Add an additional 1/4 turn if you could not find the original set screw indentations in the previous step. Heavier wooden garage doors may require an additional 1/4 turn. Caution: Under-tightening the drums could cause the drum to slip and the door to cock or fall. Over-tightening the set screws could damage the shaft or drum, resulting in the same problems. This is a critical step. http://youtube.com/watch?feature=youtube_gdata&v=Z_eZc-kh40c
Most residential garage doors have one of two types of springs: torsion or extension. Torsion springs are heavy-duty springs mounted to a metal rod that runs parallel to the door, directly above the door opening. These springs are loaded, or tensioned, with a twisting action. When the door closes, cables attached to the bottom corners of the door pull on pulleys attached to the ends of the metal rod the springs are mounted on. The pulleys turn the rod, which twists the springs and creates tension. When the door is opened, the springs unwind and help lift the door. https://www.youtube.com/attribution_link?a=Z_eZc-kh40c&u=watch?v=XXXXXX&feature=share

4.4 Take the spring on the left and place it at the left end of the door as pictured here. Notice that the end of the wire points to the right toward the center of the door. This is a right wind torsion spring. It will go above the garage door on the left side of the spring anchor bracket. The winding cone at the other end of this spring is usually painted red.
Doors with extension springs have two sets of pulleys (which are sometimes called sheaves): one at the end of each spring and one at the top of the vertical door track. They also have two cables on each side. One cable attaches to the bottom of the door, runs up and over the pulley above the door and around the spring pulley and then attaches to the door track bracket. The other cables are safety cables that run through the middle of the springs and are fixed to a track bracket at both ends. These cables restrain the springs if they break under tension. All extension springs must have safety cables.

Spring Issues - Unless it is due to an obstruction of some type, uneven movement of your garage door is likely caused by a problem with the spring mechanism. Roll-up doors generally have one center-mounted torsion spring. The tension on torsion springs is great. Therefore, it is necessary to call a professional for any repairs to this type of spring mechanism to avoid serious injury. Because replacement of these springs or cables in a garage door can take at least two or three hours of labor, costs can average $300 or more.
First, check to see if the transmitter on the wall inside your garage still opens your garage door when pressed. If it does, then the transmitter in your car likely just needs a simple battery replacement. If you have more than one car transmitter for your garage door, then your other transmitters will likely need new batteries soon as well, since they were probably installed around the same time.
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.
6.10 If the garage door comes off the floor when you pull down on the bar, and if the cone still won't loosen, tap the bar next to the cone with a hammer to force the cone beyond the swollen portion of shaft. Maintain a firm grip on the bar; keep it firmly inserted completely into the cone; and be prepared at all times for the cone to slip, break, explode or break free from the shaft and yank the bar down. https://www.youtube.com/v/Z_eZc-kh40c&feature=share
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