[AT] OT WoodPro wood chipper clutch
swilliams268 at frontier.com
Fri Apr 23 00:01:16 PDT 2021
Richard Walker wrote:
>> 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.
> 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.
> 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.
> 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.
It could be some odd alloy but I would think it's a 300 series casting.
Unless they used a slug of something inside the casting.
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