Subject:
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Re: Yet Another Technic Creation
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Newsgroups:
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lugnet.technic
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Date:
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Fri, 4 May 2001 14:49:28 GMT
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Viewed:
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3867 times
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Geoffrey Hyde wrote:
> Hmm - I'm not sure, but I think sometimes demolition material can get
> overbalanced somewhat. If the heavier stuff winds up at the wrong end, it
> can make lifting on a bit melodramatic, but like all things mechanical, it's
> just a matter of where the lever, fulcrum, and load are. :-)
I saw this once, although the heavy material was all over to one side causing
the truck to lean over in a most precarious fashion. I assume these vehicles
are a lot more stable than they look in those situations...
> As you can probably tell, those hydraulic pistons on the prototype are quite
> powerful - I'm not sure how much weight they can lift,
I think the skips on 8x4s generally go up to about 20 (UK) tons, although I am
not sure if this is the gross or payload weight. I had some stats somewhere
about the pressure in the hydraulic system and it was indeed pretty serious.
> For some dumpsters, the driver of the truck will often get underneath and
> secure some chains to attachment points, I guess this is a safety measure in
> case the dumpster bounces around a bit, and moves off it's loaded position.
I have read that some of them have some kind of chassis locks as well, in fact
I believe some form of securing the skip to the chassis in addition to the hook
lift system is mandatory. I wish I had kept all these URLs!
> They also use chains in cases where the dumpster has been moved into a
> position where the hook can't reach it. They simply hook some chains up,
> and drag it to where the hook can engage properly, then loading goes as
> normal. I'm not sure if this is mentioned on your site.
It isn't, but I could perhaps rig up a photo to illustrate it - I have a small
grey chain which came with one of the newer "town" digger sets I received at
Christmas which should do the job ;-)
> One model I would like to see from the waste haulage and disposal side of
> things is the kind where they use a large dump truck with large liftarms
Am I barking up the wrong tree here, or is the alternative model to the airtech
claw rig a variation on this theme?
Jennifer
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Message has 2 Replies:
 | | Re: Yet Another Technic Creation
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| (...) airtech (...) How about the Barcode reader? That's almost exactly what it is, except that the real ones are a bit more complex as regards to the items loaded? James Powell (25 years ago, 4-May-01, to lugnet.technic)
| | | Re: Yet Another Technic Creation
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| "Jennifer Clark" <jen@vulture.dmem.strath.ac.uk> wrote in message news:3AF2C178.8B3C23...h.ac.uk... (...) it (...) it's (...) causing (...) vehicles (...) Yeah, visually it's a bit unsteady looking. (...) quite (...) I am (...) somewhere (...) (...) (25 years ago, 6-May-01, to lugnet.technic)
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Message is in Reply To:
| | Re: Yet Another Technic Creation
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| "Jennifer Clark" <jen@vulture.dmem.strath.ac.uk> wrote in message news:GCt0sF.4AJ@lugnet.com... (...) (URL) (...) in (...) (URL) thought as much, they had me wondering for a second if your computer had gone slash happy. (...) some (...) this (...) (...) (25 years ago, 4-May-01, to lugnet.technic)
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