On 9/19/2010 4:28 PM, Puckdropper wrote:
wrote in news:31d17dea-35e5-4b35-
:

*snip*


The saw plate had a good bit of surface rust, but I managed to get it
pretty clean. The blade will of course have to be replaced. Same for
the power plug. But what else might I be looking at?

You may need to replace the switch. If you can see the contacts, look
for signs of degragation. If the switch is fussy, it may also be an
indicator the switch needs to be replaced. That contacts may need to be
cleaned, however, and one trick that sometimes work is just flipping the
switch on and off quite a few times. (Unplug the saw and just keep
flipping the switch.)

There may be internal lube on gears and the like. Some of it will set up
and instead of making parts move easily keep them from moving at all!
You may need to clean and replace the old lube. (Be sure you use the
proper replacement lube!)

Puckdropper

Any time you have a switch problem I highly recommend unplugging the
piece of equipment and flip the switch a couple of dozen times.

I learned this lesson the hard way. Many years ago I was working for a
company in southern Michigan near the Ohio state line. We had a
Chromatograph that was not working, and I called the service rep who had
to come down from Detroit, about a 3 hour trip at that time.

When he arrived with all of his equipment, he came into the lab and
walked up to the machine and gave the one knob about two dozen turns,
then turned the machine on. It came up perfectly. After spending
another couple of hours checking the unit with his testing equipment, he
found nothing wrong with the machine.

The bottom line I paid the man for 6 hours travel time plus 2 in the lab
to have him clean the switch by rotating it a couple dozen times. It
was a very expensive lesson in electronic. Now the first thing I do is
flip he switch at the first signs of trouble. (This will only if the
switch has a mechanical contacts )