Subject:
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Re: JCB JS220 Excavator
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Newsgroups:
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lugnet.technic
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Date:
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Fri, 28 Nov 2003 10:10:28 GMT
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Viewed:
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4360 times
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In lugnet.technic, Ross Crawford wrote:
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Hmmmm you may be right - I’m still disappointed you didn’t implement
automatic bucket release though ;)
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One of these days :-) It is probably doable with the small pneumatic cylinder.
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And have you seen those new mini excavators that have the ability to move the
dipper assembly sideways? they have a sort of parallelogram linkage and
another hydraulic cylinder. I should try yo get a pic of one.
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I came across this when building the JS70 model on my website, the datasheet
mentioned a “parallel offset boom” and I had no idea what it was until I asked
someone. It is indeed as you describe, and apparently avoids the need to
constantly reposition the excavator when digging trenches etc. Also good for
digging up agaist walls and so on.
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Also I saw the other day a JCB backhoe with an extendable dipper - it was
telescopic, with the hose for the bucket & bucket release doubled back inside
it. I’m not sure what it is intended for, but this guy was just using it when
he needed to change the backet, so he didnt have to have the alternate
buckets so close i guess.
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Interesting, I saw exactly one of those a few weeks ago too, prior to this I had
never seen one, perhaps it is a new thing for this type of machine? I didn’t see
the operator do anything fancy with it either.
Jennifer
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Message is in Reply To:
 | | Re: JCB JS220 Excavator
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| (...) Hmmmm you may be right - I'm still disappointed you didn't implement automatic bucket release though ;) And have you seen those new mini excavators that have the ability to move the dipper assembly sideways? they have a sort of parallelogram (...) (21 years ago, 27-Nov-03, to lugnet.technic, FTX)
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