Even if one could somehow stretch and clamp the springs to the proper extra length, the process would still be more trouble, and there would be little or no reduction of risk. Lifting the full weight of the unsprung door by hand and clamping it in the raised position is dangerous in itself, and creates the same amount of stored energy as winding the springs, ready to slip out of your hands. Many doors won't travel far enough up the track to provide clearance to access the springs. You're also going to have to deal with winding stiff steel cables onto both lift drums at once without any resistance to maintain tension. Finally, even if you managed to complete the installation with the door raised, you then have to lower the massive door against an untested balancing torque. If you've made a mistake, then that massive door has nothing but your skeletal force applied through your meat clamps (hands) to prevent it from falling down and crushing whatever is in the way (perhaps your feet?).
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.
Although you can replace your garage door opener on your own, it’s more difficult than most DIY projects, so following the installation instructions is a must. If you’re not confident you can replace the opener on your own, you should consider hiring a professional, which further increases your costs. You can also expect to pay more if you’re replacing a garage door in addition to the opener.
The "liability" angle: The flip side of "safety issue" is "liability". This is not used to directly sell you something; it is used to demean the cheaper alternative and prod you into buying a more expensive (and profitable) option. For example, you may be pressured into buying a whole new door, when you just need a new spring, by the salesman telling you he can't just replace the spring due to "liability" issues. Since product liability is a big burden on the garage door industry, and so many old doors (and especially automatic openers) are dangerous, this may be a genuine reason to accept a higher price.
A torsion spring counterbalance system consists of one or two tightly wound up springs on a steel shaft with cable drums at both ends. The entire apparatus mounts on the header wall above the garage door and has three supports: a center bearing plate with a steel or nylon bearing and two end bearing plates at both ends. The springs themselves consist of the steel wire with a stationary cone at one end and a winding cone at the other end. The stationary cone is attached to the center bearing plate. The winding cone consists of holes every 90 degrees for winding the springs and two set screws to secure the springs to the shaft. Steel counterbalance cables run from the roller brackets at the bottom corners of the door to a notch in the cable drums. When the door is raised, the springs unwind and the stored tension lifts the door by turning the shaft, thus turning the cable drums, wrapping the cables around the grooves on the cable drums. When the door is lowered, the cables unwrap from the drums and the springs are rewound to full tension.
Modern garage door openers include basic to advanced features that improve safety and deter break-ins. Examples include an automatic stop if a descending door encounters a solid object such as the hood of a car and light beam sensors that detect the presence of an object -- or a person or pet -- and stop a garage door's downward movement before accident or injury can occur. Available security options include remote lockouts for when you will be away from home for an extended amount of time, remote codes that change after each use, and lights that turn on automatically when your garage door opens or if movement is detected inside.
It is precisely on those coldest days of the year when you most need and appreciate the convenience of opening and closing your garage door quickly. Sadly, those also happen to be the kinds of days when cold and moisture combine to make this difficult. Garage doors can and do freeze to the garage floor. Sometimes it is a minor icy connection between the two that can be broken when you hit the opener button.
Since we're using an 18-inch (1.5 feet) winding lever to wind each spring up to 29 foot-pounds, we must apply a maximum tangential force to the end of the winding lever of about 20 pounds. Later we'll see that the actual weight of this rather dense door is 238 pounds, implying a maximum tangential force on the winding levers of only about 13 pounds!
Spending your whole weekend setting up a new garage door opener is not on the top of most peoples list. This opener is easy to install for most levels of DIYers and it provides a quiet and reliable open and close. This has 3/4 HPc DC chain features and the powerhead can open 12" in a second. It has a wireless remote and Intellicode 2 security to prevent people from breaking into your home.
The various increments of standard wire sizes differ by only about 0.010 inch, so calipers or a micrometer would be the tool to use to be certain of the stepped size you have, or else a trustworthy ruler marked in tenths of an inch to use the measure-10-turns-and-divide-by-10 trick. The most common wire sizes in the US are 0.207", 0.218", 0.225", 0.234", 0.243", 0.250", and 0.262".
Precision Garage Door of Seattle is the best choice if you are looking for garage door repair, maintenance, replacement and installation in the greater Seattle area. Our vast experience sets us apart from other competitors. Our experienced garage door specialists and our approach to finding and treating the cause of the problem is why we are the trusted name for garage doors in Seattle.
Finally, we also carry any and every residential garage door product that you need to have a state-of-the-art, secure and safe garage door. We are proud certified dealers of Clopay doors, the most durable and versatile doors on the market. With over fifty years of garage door manufacturing experience, you can trust Clopay quality, just as you can trust our team to install these highest-quality doors.
Spring rate, torque, and lift: The spring rate K for these measurements is π*28.5*10^6 * (0.273)^4 / (32 * 140 * 1.72) = 64.5 IPPT. Applying 7.5 turns on this rate will yield a torque of 7.5 * 64.5 = 484 in-lb, which on the 4-inch drums (2-inch radius) yields a lift of (484 in*lbs)/(2 in) = 242 lbs. Again we find good agreement with the approximate door weight of 238 lbs.
Manufacturers and distributors of torsion springs believe they are better off not retailing their product directly to the public. They believe they are maintaining higher prices for their product by restricting sales "to the trade." One brochure for parts even flatly stated, "We do not sell to the end user. We protect our dealers," which would seem to be prima facie evidence of an illegal restraint-of-trade scheme. But this is an old story which is true of virtually every product and service, going back to medieval guilds and before.
In 1992 the United States Consumer Product Safety Commission released new rules for automatic garage door openers. Anything manufactured after 1993 was required to include either an electric eye (a pair of sensors that detect an object obstructing the doorway) or a wall-mounted control button that users hold down in order to close the door entirely. Most manufacturers opted for the electric eye method, sometimes referred to as safety sensors.
Adding a new garage door provides a dramatic difference in your home’s appearance. When neighbors pass by, when guests pull up, or when you return from work, your house will have a distinct beauty that makes it a landmark of the neighborhood. The unique look you’ve always imagined — as well as the material, the finish, and the insulation can be found in our wide selection of garage doors.
Yet another professional wrote me to say that the red paint on certain components of these assemblies is an "industry standard" that signals, "Danger! Part under hazardous tension." Other items under tension like the bolts on the cable attachment plate on the door should therefore also be painted red. If so, then this is a new, ambiguous, unreliable, and little-publicized standard, because none of my old hardware shows it, red paint also means other things, and searching the Web does not readily turn up references to this practice.
The Genie Universal Dual Frequency Remote Conversion/Upgrade Kit The Genie Universal Dual Frequency Remote Conversion/Upgrade Kit includes one 3-button compact remote one receiver one transformer and electrical wire (two-wire). The kit alleviates frequency issues from the recently implemented Land Mobile Radio communication system used by military bases as part of the Homeland Security efforts. More + Product Details Close