I have had my jet mini lathe for 3 years. Last night while turning I
noticed a a increased sound while turning and when I would turn the
lathe off it would stop spinning immediately.I backed the tention off
of the hand wheel and that helped but there is still some extra noise
from the lathe. I have never lubricated the bearings. Is this something
I should do? The lathe also seemed to have slight changes in speed
while spinning. Anybody have a clue as to what might be wrong?