On 16 Dec 2018 02:38:14 GMT, "DoN. Nichols"
wrote:

On 2018-12-08, Bob La Londe wrote:
I may have a similar problem with my small lathe. It quit yesterday. Had a
couple slow starts where I pushed it with the collet closer handle to get it
going, and now nothing. The fact that its nothing "not even a hum" mkes me
wonder of the on/direction switch is bad. Fortunately I had radiused just
enough alignment pins for the projects that were finishing yesterday.

The lack of hum may be a function of how big a motor, and where
it happens to have stopped.

But given the slow starts, you very likely have let the smoke
out of the start capacitor.

I had that problem with a 1-1/2 HP motor, wired for 120 VAC
operation. Slow starts when belted for high speed, and occasional
tripping of the circuit breaker for that outlet. After it blew I
replaced the starting cap, re-wired the motor and switch for 240 VAC
operation, and connected it to a 240 VAC outlet, and it has worked well
ever since. (Some of these days, I'll swap in a 3-phase motor and a
VFD so I get variable speed as well, without having to shift belts all
the time. :-)

Good Luck,
DoN.


I've got a DC motor and speed control I've been promising myself I'll
install on my Myford Super Seven some day - It's been gathering dust
beside the lathe for several years now - - -