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Posted by Jim on April 5, 2009, 12:01 pm
> On 4/4/2009 4:19 PM Lew Hodgett spake thus:
> > David Nebenzahl wrote:
> >> Whoops; missed that part of the post. So it does have brushes.
> > Yes.
> > Saw is a "Kung FU Machinerty" Special.
> > I bought one for $50 in the mid '80s to throw in back of car for use
> > at the boat yard.
> > If you get 2 years, consider yourself lucky.
> Sounds as if the proper replacement procedure would be, to paraphrase an
> old musical-instrument repairperson acquaintance of mine:
> 1. Remove sawblade.
> 2. Slide new saw under sawblade.
> --
> Made From Pears: Pretty good chance that the product is at least
> mostly pears.
> Made With Pears: Pretty good chance that pears will be detectable in
> the product.
> Contains Pears: One pear seed per multiple tons of product.
> (with apologies to Dorothy L. Sayers)
My mid size (but not old monster, such as one sees in lumber yrads!)
bench saw has a separate one HP AC induction motor hanging out the
back using the weight of the motor to tension the drive belt. The step
up ratio, is, I think, about 2.5 to 1
Motor has thermal reset; some sort of starting contacts/winding AFIK;
no capacitor. It is connected in 230 volt mode. Was fortunate to
eventually find a double pole switch which have mounted on saw base.
Fortunately never had to have that motor apart.
But just curious? Do some of those all-in-one motorized bench saws
have a brush motor (direct drive) buried under the saw deck. I guess
in that case the saw blade is mounted directly on the motor arbor?
+++++++++++++++++++++++
What you have might be a repulsion-induction motor. Alas, they were
discontinued in the mid 1950's.
And, my saw has such a motor.
Jim
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