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Lathe query

Drive fault

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Alan Sayner05/02/2011 14:55:39
2 forum posts
Hello
I have a mini lathe similar to the Warco. When I turn the lathe off with the speed controller the motor gets bursts of power every couple of seconds or so. Is it likely to be a faulty potentiometer or could it be something else.
Can anyone help?
Steve Garnett05/02/2011 16:34:08
837 forum posts
27 photos
On the face of it, that's a good candidate - but if it does this with the motor stopped, and you aren't touching the control, it seems less likely. If the pot is faulty, there's a good chance that if you turn it up slowly, the motor will be a bit 'squirrely' when it starts up. Another check you could try is to turn the pot up very slightly from the end stop and seeing if it still does this. By doing this, hopefully you get onto a less worn bit of track without the motor actually running, but if the same thing happens, then likely you'd be looking for a different cause, unless the pot is really bad.
 
Alternatively, just try changing the pot and see what happens.
Alan Sayner06/02/2011 11:52:02
2 forum posts
Thanks for that Steve . Ill try changing the pot first.

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