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Farmer John

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Reply with quote  #1 
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This is at least the third time that I have seen the wire connectors placed  backward in the receptacle.  Touch the exposed brass connectors and you will get a shock. 
John

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ke6cvh

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Reply with quote  #2 
Hi Farmer John,  Here in the Philippines all the power is balanced so both sides are hot.  In US the 230v side is balanced and after it gets taken down to 115 is when it becomes unbalanced with a ground on one side.  Navy ships are the same way.  I've actually run into power supplies on rare occasion years back for camcorders that would not work on unbalanced power.  Our satellite receiver box is strange in that sometimes when the power supply is connected one way it will work great then the satellite reception will begin to become poor like in a heavy rain and when I take the "wall wart" cube type supply and turn it around the problem dis appears.  With an older electric motor this would not be the case but I'd be more worried about the cast iron head getting a voltage....I'm assuming there is good bake light insulation to protect from that.  Back in the old days when drills and other tools had aluminum cases several sailors were shocked to death working on the metal decks of ships likely from a combination of sweating and the metal case/deck.  Now the tool rooms have tool testers.  One plugs the tool in and then touches the outer case to a bar ensuring this won't happen.  However, even with plastic cases I have a large Dewalt drill that is all plastic cased that also is a hammer drill.  I've been outside working very hard on a couple occasions that enough sweat got on the case it worked into the trigger switch assembly shocking me while I worked.  I'd have to give the drill a rest and then go back at it.  Best regards, Mike
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WI Lori

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Reply with quote  #3 
John, I hope you discovered the wire connectors issue before testing out the new 15-91. Does it sew as good as it looks?
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Lori in Wisconsin
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pgf

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Reply with quote  #4 
The first time I got a Singer power cord it was assembled like that.  Those things are a little fiddly to get the wires attached and the shell back together correctly -- I suspect people think "These little tubes must stick out, because there's no room for them inside!".

paul

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Farmer John

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Reply with quote  #5 
The 15-91 sews great, Lori, adjusted the check spring stop, rewired the power cord, put the needle in the correct way, replaced the winder tire, and tweaked the top tension.  Polishing up the "trappy" cabinet now.  The sm has a 7/10/53 date.  The sm is about as new.
John
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