And burns up.
Sounds like you need to replace the motor.
Doug Miller (alphageek at milmac dot com)
Nobody ever left footprints in the sands of time by sitting on his butt.
And who wants to leave buttprints in the sands of time?
If there's room around the machine, you can replace the motor with a
shaft and bearings, move the motor to a convenient place and drive the
new shaft with a belt and pulleys.
Replacing the motor with a 1750 rpm one would cost more but take less
effort. Since you're slowing the sander by half, you can get away with
reducing the motor power by half or more. (Your sanding material
removal rate will also drop, but I'm assuming you're not a production
shop.) This would save a few bucks on the motor and wiring.
There's probably room on the motor shaft to mount a large pulley. Then use
another motor, with small pulley, to drive everything. In other words, use
the motor for a jackshaft. If you need to go fast again, just take off the
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