Subject:
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Re: new jack
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Newsgroups:
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lugnet.technic
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Date:
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Wed, 5 Mar 2003 10:56:26 GMT
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Viewed:
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1670 times
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"Paul Krieg" <pdkrieg@epix.net> wrote in message
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> AS an opperator of some of these types of lifts I thought I'de share.
Thanks Paul, interesting indeed! I had no idea that those machines were
difficult to drive in a straight line, although I have seen one which had
very large and bold arrows indicating which direction was forward, a matter
of some importance I imagine :-)
I assume that those machines are designed to stay balanced in the event of a
tyre puncture, but I always wondered about driving over a pothole or
something similar; presumably there is a large degree of balance designed in
to prevent the machine toppling in such an event. Presumably they look more
precarious than they are!
To clarify the notion of simultaneous movement I mentioned, I saw an example
this morning where the two boom sections similar to that designed by Pixel
was driven by a single hydraulic cylinder, and linkages kept the two parts
at equal angles to the horizontal. The two independent movements is probably
smarter looking though.
Jennifer
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Message has 3 Replies:
 | | Re: new jack
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| "Jennifer Clark" <jen@vulture.dmem.strath.ac.uk> wrote in message news:HB9vr0.64x@lugnet.com... (...) these two different designs have different functionality when two parts of boom are driven indepandantly the man in the basket can be send out of (...) (22 years ago, 5-Mar-03, to lugnet.technic)
| | | Re: new jack
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| (...) When you have the turet turned 180 degrees and you need to move the machine the arrows help because the controlls in the basket for foward and reverse will work oppositly from the operator's perpesctive. (...) No suspesnion. Very bumpy going (...) (22 years ago, 5-Mar-03, to lugnet.technic)
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Message is in Reply To:
| | Re: new jack
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| (...) Hi Everyone, AS an opperator of some of these types of lifts I thought I'de share. In my experiance some of them will let you control more than one- boom riser, boom up, b. extender, turet, tilt, etc at once. The few I've been on only up to 3 (...) (22 years ago, 4-Mar-03, to lugnet.technic)
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