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actual good screw and nut drivers have flats/a hex area on the shaft to do this with. and a metal strike cap on the back.
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Mar 29, 2021 00:16
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Hydraulic motors, I thought.
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Mar 30, 2021 02:30
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I would really like to know if that works on refrigerant leaks, but i can't even get the boss to pony up for more than one 200 dollar sniffer per 10 techs, so lol at getting this space magick funded.
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Sep 1, 2021 19:40
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Dec 7, 2021 02:17
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It was the heat exchanger for a domestic hot water boiler.
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Dec 7, 2021 03:34
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Mr. Wiggles posted:More info necessary. Boiler size? second hand photo, but 500k btu. zero maintenance done since installation through 5 years of life. unit is also piped to heat domestic water directly, instead of treated water looped through a heat exchanger tank. said domestic water was also not softened for at least a year. one of 4 units that serve a 15 story commercial/residential building. units got rode hard, put away wet. surprise, they broken now. if you look close you can see one of several pinhole leaks in the back pissing water. the center is where the metal mesh burner goes (natural gas) Unrelated equipment failure: 
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Dec 7, 2021 23:20
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 A seasons "gently caress you" to the engineers who spec pumps like the above. the twinned volute means you don't have isolation for each pump, which is great when the seal pops a leak, because now you either shut off both pumps (the only heat for the building), or run one and dump treated water down the drain (and hopefully not into the space below) these only make sense if the most likely failure mode is motor failure, and even then you still have to isolate and drain in order to change motors because the shaft is usually part of the seal until you get large enough for a coupler. these are not two pumps, they are one pump with two motors.
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Dec 30, 2021 03:49
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kastein posted:I agree, and I'm kind of surprised you didn't also post that in the HVAC thread that I'm now nearly 400 posts behind on. Or maybe you did and I haven't seen it yet. Who knows, not me. I leave the hvac thread for goon help. this thread seemed more appropriate for complaining about bad mechanical design, which i would say is a type of failure.
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Dec 31, 2021 03:05
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slidebite posted:What a moronic system. I would be jumping through mental gymnastics to make a case for that....like a very specific size envelope. the only answer I can think of is it saves you from making 8 more piping connections, thus is cheaper to install, while still being notionally "redundant" the model I was working on also had ECM motors (or at least 3phase with built in VFDs, didn't really look at the electrical), so with a disconnect that's also less expensive, because those are also easier than mounting a drive + bypass on a wall somewhere.
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Dec 31, 2021 03:16
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I just saw a video where some aeronautics guy explains why new engines don't happen for GA https://www.youtube.com/watch?v=_k1TQGK3mZI
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Jan 25, 2022 00:36
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Seems to me the priority is over-nighting* the customer the Correct breather, then pointing fingers later. *so one week, these days.
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Apr 28, 2022 23:57
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Iirc that design choice was because it made production easier/faster?
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Jun 12, 2022 19:02
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Bits are disposable wear items, but yes probably material defect in casting.
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Aug 8, 2022 03:29
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But the threaded spindle is still there...
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Jan 28, 2023 23:35
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That is the Evaporator  the Condenser is outside the box. but yeah fin combs work on both. also, probably want to look at the defrost coil or timer.
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May 10, 2023 23:12
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No problems with stranded wire and lever wagos, I have used both brand and "lever wire connector" knockoffs. No issues assuming the insulation fits and the wire is the correct gauge. the push ones are branded "wallnuts" or push in nuts. no stranded on those solid only.
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Jun 4, 2023 20:59
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My shitbox honda requires Aerospace Grade workmanship. I follow NASA standard 8739.4 when I plug my ipod into the aux jack.
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Jun 6, 2023 02:24
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I am the two different sized lug nuts.
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Mar 24, 2024 19:02
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