271–280 of 344 posts
[0] https://www.novoferm.nl/producten/garagedeuren/kanteldeuren/
I had a teacher in high school who was blinded (I think only in one eye) trying to do this repair. You could not pay me enough money to do this repair. >This work is risky, but the risk is comparable to doing your own car repairs, or climbing on the roof of your house to clean your gutters. Notably, "unintentional fall" is the #1 cause of emergency department visits for adults [1], which is why I'd hire a professiona…
When my spring broke I called a someone local (maybe via Yelp), he came out within 30 minutes, replaced it in 20 and charged me $75. This was only a couple of years ago. Likewise with brake fluid changes. I can do it, but the risk/hassle just ain't worth it for the cost of a pro.
The fluid only degrades in the caliper, no need to replace it entirely, and no need for a computer when you do it like I described it.
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I’m not an expert in how springs break but wouldn’t an ejection of material require the spring breaking in at least 2 places that are close enough to not loop around the rod? I’m curious if anyone’s ever been hurt by one breaking (other than when actively working on it).
I’ve also never heard of a shrapnel-based injury. Only door falls or torsion bars breaking arms. I’ve actually replaced these in two houses, and yes, they’re dangerous, but honestly a little common sense and a straightforward (printed, with a buddy double-checking) list of steps you take with each quarter turn. It’s super important to have the right torsion bars. Don’t try to invent your own.
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I’m baffled too. Changing oil in a car is dead simple and effectively zero risk with a proper pair of jack stands and a modicum of common sense and mechanical aptitude.
Not everyone is born with common sense. I sure wasn't. I'll find some way to do something that will leave the people with common sense scratching their heads, saying "but why wouldn't you just...".
The author's intentionally verbose/non-linear storytelling technique, for example the two paragraph detour that describes his ladder and the ladder company's bankruptcy, and the 19 paragraph deep dive on garage door repair business marketing, makes it very hard for my brain to absorb the core information I was looking for (the procedure to replace the springs). I know I'm kind of missing the point/creative intent of…
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The door needs less counter weight as it goes up. In order for weights to work you either need several weights, with different weights bottoming out as the door rises. Or have the cable on a spiral pulley may work.
I don't think that's true of the mechanism I saw, which I believe was quite common, but it's 20 years since I looked at the mechanism. Ok I've found a video with one in: https://m.youtube.com/shorts/zLuJYlHBSkU The counter weight is always taking the full weight of the door, there's just a linkage which rotates the door on the way up. So, not the same as the spring ones, which follow a curved channel. This makes me l…
I did one on the "do it with the spring relaxed and the door up" plan. The door isn't that heavy, you can just lift it with your hand to help the opener lift it up, and done. But cramped!! Getting the lift cable nicely wound on the lift pulley, giving it a bit of preload (pull) and getting it attached to the bottom of the door, all with the raised door in the way, and doing both sides, let's just say my supply of swe…
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Still need to store the same amount of energy. A counter weight or piston also has more opportunities for uncontained failure. At least when a garage door spring fails it is still constrained by the shaft running through the middle. For what it's worth, I have also replaced my own garage door spring, and I really have no desire to do that again.
The risk isn’t just what the spring does but what happens to something caught in it. Springs can release energy a lot more quickly than a counterweight which can only accelerate a 9.8m/s/s, and therefore more risky to disable.
I had a teacher in high school who was blinded (I think only in one eye) trying to do this repair. You could not pay me enough money to do this repair. >This work is risky, but the risk is comparable to doing your own car repairs, or climbing on the roof of your house to clean your gutters. Notably, "unintentional fall" is the #1 cause of emergency department visits for adults [1], which is why I'd hire a professiona…
I don’t understand why it’s even considered safe to have one of these springs in one’s garage without a solid shield of some sort. While the energy involved is small on the scale of energy storage devices ( Which brings to mind some rather different designs. A rather small motor with a lot of mechanical advantage can easily open a close a garage door, and if a DC or low voltage AC motor is used, it could do so quite…
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When my spring broke I called a someone local (maybe via Yelp), he came out within 30 minutes, replaced it in 20 and charged me $75. This was only a couple of years ago. Likewise with brake fluid changes. I can do it, but the risk/hassle just ain't worth it for the cost of a pro.
I never replace the brake fluid. I do flush each caliper when changing summer and winter tyres. This means a selected offspring presses the brake twice for every tyre and the caliper has fresh fluid in it. The fluid only degrades in the caliper, no need to replace it entirely, and no need for a computer when you do it like I described it.