power pro slows and stalls
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quaddrussell
- Bronze Member
- Posts: 5
- Joined: Mon Aug 14, 2017 10:23 pm
power pro slows and stalls
I've been using my Shopsmith with the power pro head as a lathe with no problems for at least three years. Today it began to slow and stop under a small load turning a bowl. Started out turning at 500 rpm with a rough cut and it hung. Now each time I put any pressure on the piece it slows and stops and then restarts and comes back up to speed. No error codes. Any ideas?
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JPG
- Platinum Member
- Posts: 35600
- Joined: Wed Dec 10, 2008 7:42 pm
- Location: Lexington, Ky (TAMECAT territory)
Re: power pro slows and stalls
Belt slipping?
i.e. Does the motor continue to turn as the workpiece stalls etc.?
i.e. Does the motor continue to turn as the workpiece stalls etc.?
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╟JPG ╢
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Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10E[/size](SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange
╟JPG ╢
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Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10E[/size](SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange
Re: power pro slows and stalls
Does the RPM indicate the slow down?
As was mentioned a slipping belt is likely the cause (or a loose pulley). If you have been using the machine for a couple of years it might well need a belt adjustment anyway. One of mine is pretty stable but the other one has about twice as many adjustments for some reason but seems to have established a better spacing after the first couple of years.
So best guess at this point will be the belt adjustment.
Ed
As was mentioned a slipping belt is likely the cause (or a loose pulley). If you have been using the machine for a couple of years it might well need a belt adjustment anyway. One of mine is pretty stable but the other one has about twice as many adjustments for some reason but seems to have established a better spacing after the first couple of years.
So best guess at this point will be the belt adjustment.
Ed
{Knight of the Shopsmith} [Hero's don't wear capes, they wear dog tags]
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quaddrussell
- Bronze Member
- Posts: 5
- Joined: Mon Aug 14, 2017 10:23 pm
Re: power pro slows and stalls
Thank you both for the assist, that seems to have fixed the problem. The belts had a bit too much play. As a side note, when I removed the cover I found a bolt and a set screw in the bottom of the housing from the lower part of the mount. All the rest were still tight and I was able to locate the empty holes and replace them both. I guess it's not a bad idea to pull the covers every once in a while to make sure things are still tight.