Be sure to count your turns

Comments

• Kaput@lemmy.world ⁨1⁩ ⁨month⁩ ago

  Any truth to this? I doubt it but still…I wouldn’t know.

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  • neidu3@sh.itjust.works ⁨1⁩ ⁨month⁩ ago

    Now. The joint isn’t threaded, it’s a slew ring. Think of it like a wide diameter ball bearing with some extra locking mechanisms to hold the top part in place.

    What happened here is most likely a damaged or worn slew ring.

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    • Honytawk@lemmy.zip ⁨1⁩ ⁨month⁩ ago

      So is it possible to swing infinitely any way? Or is there a limit because of electric cables or something?

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  • Ferrous@lemmy.ml ⁨1⁩ ⁨month⁩ ago

    There’s a remote risk of this catastrophic failure happening due to bad maintenance, installation, or building, but there’s no risk of this happening due to normal rotation/swing. In other words, assuming the machine is in good working order and used for realistic applications, this will never happen.

    Here’s a video that explains how excavators achieve infinite swing angle without tangling the hydraulic hoses that go to the motors in the tracks. The dude in the video knows his stuff.

    youtu.be/oUVE2PIV5_k

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    • idegenszavak@sh.itjust.works ⁨1⁩ ⁨month⁩ ago

      Tom Scott has a video of a rotating house, the plumbing uses the same logic there, they made some nice animations: www.youtube.com/watch?v=gisdyTBMNyQ

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    • Kaput@lemmy.world ⁨1⁩ ⁨month⁩ ago

      Interesting thank you.

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  • The_Picard_Maneuver@lemmy.world ⁨1⁩ ⁨month⁩ ago

    I’ve heard it’s one of those ways they haze new operators.

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• possiblylinux127@lemmy.zip ⁨1⁩ ⁨month⁩ ago

  This is actually really scary. I would not want to be the operator when the top falls off.

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  • prettybunnys@sh.itjust.works ⁨1⁩ ⁨month⁩ ago

    That’s not typical, mind you

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    • DasFaultier@sh.itjust.works ⁨1⁩ ⁨month⁩ ago

      They could at least tow it out of the environment.

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• ininewcrow@lemmy.ca ⁨1⁩ ⁨month⁩ ago

  Just made a post it note and put on my wall for the next time I’m operating a full sized construction excavator

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  • seathru@lemmy.sdf.org ⁨1⁩ ⁨month⁩ ago

    Don’t let your memes be dreams. They just leave them parked everywhere.

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    • ininewcrow@lemmy.ca ⁨1⁩ ⁨month⁩ ago

      That’s beautiful … whenever I see construction guys on the highway packing up a piece of heavy machinery I tell my wife that these guys could be stealing that excavator / tractor / packing machine / dump truck / whatever in broad day light and no one would notice a thing.

      Everyone on the highway just ignores these people like they don’t exist and a gang can just pull up with a flatbed, jack a machine, load it up professionally, drive it away to the other side of the country and resell it somewhere else or tear it apart for parts to resell.

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• edgemaster72@lemmy.world ⁨1⁩ ⁨month⁩ ago

  Never assume the top was fully screwed on, make sure to go to the right until it can’t anymore so you know you have the full 16 rotations to the left

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• someguy3@lemmy.world ⁨1⁩ ⁨month⁩ ago

  Plus, you don’t want to get dizzy! You gotta rotate the other way around to be a pro.

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