Jet 1642 Motor gone bad

[david privett]

you might want to try a mechanics stethoscope to isolate the rub .have you operated the lathe with the belt off?

[Dave Cullen]

The wobble in that shaft is way more than half a thousandth. This really bites.

At this point I think I'd be looking to replace the motor one way or another. You said it's not a standard NEMA frame -- have you looked at metric motors? Maybe it's a standard size somewhere else in the world?

[Joe Kaufman]

Did the motor shop perform electrical test on the stator such as coil resistance, Hi Pot or resistance to ground?
Possible short between windings?

With the motor running at the slowest speed can you increase the noise level by adding pressure to the belt?

Is the Stator assembly tight in the can/motor housing?

Possible open in one of the rotor internal shorting bars?

What is the approximate shaft size of the rotor between the bearings?

joe

[Wade Lippman]

what was strange was the 2 hp motor had 5 year warranty and the 1 1/2 hp motor had 1 year warranty......and the problem seems to be coming form the 2 hp motor

I hate to say it, but that's a relief... is it the 2hp motor that goes bad? I debated what to get and cheaped out on the 1.5hp.