I have a rattle in my cabinet saw that I can't track down. It is definitely
within the cabinet and it "rings" like a sheet metal (not cast iron) part
that needs to be tightened. With the saw running without a blade I tried to
carefully touch each possible part to see if I could identify the loose
part by dampening the vibration. No luck there. Is it possible that there is
a loose part within the motor assembly? (it's not the capacitor covers, that
was easy to check). Any other idea on what it could be or a mothod of
diagnosis?

Related question: Mu drive belts seem to have a bit of vibration in them. Is
there a rule of thumb for setting belt tension?



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"Charley" wrote in message
This method might work for you. Hold one end of a 3 foot long piece of
hose
(size not really important) up to your ear (the good ear) and move the
other
end of the hose around near all of the possible sources of the sound.

Just make sure the hose doesn't get caught around a drive shaft or snagged
by a drive belt.

Try tweaking the thru-bolts that hold the motor together. I rebuild electric
motors for a living, and that is something we see every once in a while.
"C & S" wrote in message
.. .
I have a rattle in my cabinet saw that I can't track down. It is definitely
within the cabinet and it "rings" like a sheet metal (not cast iron) part
that needs to be tightened. With the saw running without a blade I tried
to
carefully touch each possible part to see if I could identify the loose
part by dampening the vibration. No luck there. Is it possible that there
is
a loose part within the motor assembly? (it's not the capacitor covers,
that
was easy to check). Any other idea on what it could be or a mothod of
diagnosis?

Related question: Mu drive belts seem to have a bit of vibration in them.
Is
there a rule of thumb for setting belt tension?



--
Posted via a free Usenet account from http://www.teranews.com

...... I found the source of my agravating
noise (it was a dry bearing).

This method might work for you. Hold one end of a 3 foot long piece of
hose
(size not really important) up to your ear (the good ear) and move the
other
end of the hose around near all of the possible sources of the sound. When
it gets louder through the hose you have found the source.

Charley


I tired the hose method. It was inconslusive, but I *think* it may be the
arbor bearing.

What does a bad bearing sound like/how could I know for sure?

The saw is 6.5 years old. That seems like a premature failure for a
hobbyist saw.

There are two distinct sounds... one is rattle the other is ringing caused
by some sort of sympathetic vibration.

I am NOT looking forward to tearing my saw apart. i certainly don't want to
do that unless I am sure that it's necessary.

-steve



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Posted via a free Usenet account from http://www.teranews.com

"C & S" wrote in message

What does a bad bearing sound like/how could I know for sure?

When I had a bad bearing, it was a 100 decibel high pitched whining noise. A
shot of lubricant in the beginning would get rid of it for about a minute or
so, but after awhile, the lubricant was useless. I wouldn't classify what I
experienced as a "whistling noise", it was much louder and much more
irritating than that. You may well be experiencing the beginning of a bad
bearing, but I'd be looking at other things first if it's just "whistling"
that you're experiencing. It might well be air flow in a certain area
causing your problem. Clean out at much sawdust as you can, lube all
mechanical parts and try again.