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<blockquote type="cite" cite="mid:60822E6D.6020301@frontier.com"><font
face="Arial">Those wouldn't be that hard to turn on a lathe. I'm
guessing the originals were cast aluminum alloy, then final
machined. Could turn a solid piece with the step and slots for
the springs. Then cut them apart and finish the ends to size. If
I had my lathe still set up I'd do it.
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<p><font face="Arial">Thanks, Steve. Already considered that as one
option, have lathe and large hunks of aluminum round in my scrap
bin. Springs could be generic, guesstimating the original
tension by wire gauge and coil diameter. The wild card is
whether the type alloy used is critical to the clutch's proper
operation - its friction against the cast iron outer drum. The
shoes seem noticeably heavier than what I'd expect typical
aluminum to weigh. At the worst I'm out an afternoon's
machining to try this approach. <br>
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<p><font face="Arial">Wet pine needles got lodged between the
chipper disc and its housing, which ultimately bound it up. As
this was in progress, the centrifugal clutch started slipping
and heating up, which I didn't notice at first. Eventually heat
totally melted one of the four aluminum shoes. <br>
<br>
Been the best mid-size chipper I've ever used. Billed as an AV
(All Vegetation) unit by Vandermolen, it will literally chip and
shred practically anything. First by the four knives in the
disc, then into a hammer-mill chamber with swinging flails.<br>
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<p><font face="Arial">Richard</font></p>
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