pwl44m wrote:Is it only the two Machines that do it ? Assuming they have original cords, check under the paper insulator to see if the wires are frayed and touching the other prong.
Perry
Perry,
Only two that I can say for sure. Maybe three. But since we have over 30 and most don't do it, it's kind of a icky feeling when it happens.
I should say that those machines that are doing this are
very old.
Two are pre WWII, one is maybe 100 years old.
>One of the machines has been completely rewired from the inside of the motor out.
>One has a new cord set from the motor block to the wall and a new foot controller as well. The light has been rewired too, but the motor is original. This is the one that started this thread.
>The last one has been completely rewired from the block out to the wall and foot controller.
pokey wrote:what vintage machine?
3 wire cord [external ground]?
2 wire cord [insulated case]?
obvious stuff, you are the path to ground when you get "buzzed".
in your basement you are providing a better path, for whatever reason.
Pokey,
Very old, I covered that above.
All have two wire cords. None of our machines up to the newest one made in the mid 80s have three wire cords.
I think, I did a thread some time back about the first machine wiring. But it's been a very long time. This basement has a lot of metal AC ducting in the end my work area is in. I can touch a volt meter to the ducting and to a metal object plugged in, running or not and get nearly a full voltage reading.
The link to it was on our dead hard drive.
It's like the air in the basement is the conduit as much as anything else.
I can take the machines upstairs and get little or no buzz off the same machines.
horsesoldier03,
That sounds like a good idea. I'll pick up one of those testers next trip to the hardware store.
I'm pretty careful with my wiring, but I suppose a stray wire could exist. Another thing to check.
pwl44m wrote:Joe, I remember Our first encounter - No I don't think U R a blithering Idiot. But Are You sure Your outlets are grounded or are You assuming because they have 3 prongs ? One of those outlet testers like horsesoldier mentioned would tell U for sure.
Perry
Perry,
Your memory is better than mine ~or~ do I really want to remember?
And sometimes even I think I'm a blithering idiot. I just try to not to do it too often.
The one the extension cord is plugged into is a three wire system ... I'm semi sure. I haven't taken the plate off the box to look, but it's a 2 wire with ground cable going from the breaker box to the outlet. No guarantee the ground wire is hooked up though.
Something else to check.
williamranks wrote:How many prongs on the sewing machine cord?
All are two wire systems.
Joe
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