Hi Neil, Did you try to spin the motor manually while it is powered? Sometimes a DC motor has trouble starting but if you give it a little push it starts. Cheers, Isaac On 24/03/2015 01:27, Neil wrote: > Hi all, > > My high-school robotics team has this mill (=20 > http://www.amazon.com/Grizzly-G1006-Mill-Drill/dp/B0000DD0AF ) and the=20 > motor recently stopped. If I switch it on repeatedly, every few times=20 > it will "kick" is smidge as if it wants to come on, but does not. > > It has 2 capacitors (run and start) and a centrifugal switch on the=20 > motor shaft with a switch. And it runs on 110VAC. I'm not sure what=20 > type of motor it is. > > So far, I've checked both capacitors (had them tested and they're fine),= =20 > plus I've checked the centrifugal switch, cleaned the switch contacts=20 > and verified that the switch makes contact when the centrifugal switch=20 > is manually flipped outwards. I've also gone through the junction box=20 > on the side of the motor, verified and tightened up all connections and=20 > tested the power switch to ensure that works fine. > > I was thinking that if I can get another motor from elsewhere I could=20 > swap that in to verify that everything I've tested so far does indeed=20 > work properly, but so far I can't get a hold of another. According to=20 > the manufacturer, since all else checks out, it must be the motor, but=20 > before I have that shipped off, what else can I check or how can I test=20 > the motor directly? > > Thanks, > -Neil. > > > --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .