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Necchi supernova juli came with two prong lamp plug on end of three wire lead for wall outlet.

The two prong lamp plug that came on my sewing machine is not polarity specific. One of the three leads is reading continuous to the frame so if you plug in the two prong plug upsidedown you'll have 110v on the frame. Of the three wires one has and outside ridge, one is center, and the other outside is smooth. Center=continuity to frame, outside with ridge=continuity to foot control, and outside smooth continuous to machine but I'm not sure where. As an electrician I would make the ridge identified wire the neutral but this would have the foot controler operating the neutral. Would like to know how the factory installed the plug end on the three wire lead to the wall and see if it works. I'd assume with a three prong plug but at the very least a two prong plug with one wide prong for neutral to avoid shocking someone.

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6ya6ya
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Posted on Jan 02, 2017

TheMobilian
  • 8220 Answers

SOURCE: Changing from 3 prong to 4 prong cord

The white wire goes in the middle between the 2 hot wires. 0c0b03b.jpg

Posted on Mar 19, 2009

  • 9 Answers

SOURCE: changing a 3prong plug to a 4prong plug on samsung dryer

leave the wire where it was. its a ground wire

Posted on Apr 01, 2009

SolutionGuy
  • 331 Answers

SOURCE: four prong plug to three prong plug

Kalola,
You can if you want to, but it's not generally necessary. Here's a picture of a 3 prong configuration with a ground strap...
df8caf5.jpg

That green wire with the yellow stripe is a ground and it is most definitely connected to the cabinet somewhere. So it will serve as the ground strap (in the above picture).

Here's the thing... say you were going from a 3 prong to a 4 prong. That is, the dryer was originally "designed" for a 3 prong. This means you'd have to "retrofit" it a bit. Take a look at this pic... ( I made this for someone else, so please disregard my somewhat hostile remarks, OK?)
22c744f.jpg

The ground strap has been removed and has been replaced by the ground to the frame. Yours probably does NOT have a ground strap, though... yours uses that Green/Yellow wire for frame ground.

All of that to say this. Don't lose sleep over it. Ya done good.

SG

b3b18a1.jpg



Posted on May 02, 2009

protek480
  • 1714 Answers

SOURCE: Frigidaire GLEQ2152ES Dryer Won't Power UP

IF you find that you have only a 3 wire feed for this dryer (and the reason for the 3 prong receptacle)...then you can not properly install a 4 prong dryer cord to it. You now have 2 choices....either rewire (assuming that it is a 3 wire supply) the entire run from the dryer breaker to the outlet location with 4 wire (typically a run of 8/3 with ground having a black, red, white and bare ground)and install a 4 prong dryer receptacle to match the configuration of the new dryers cord.....OR - you can remove the 4 wire cord and replace it with a 3 wire cord....re-using the ground strap - IF it is still in place.

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Posted on Jul 11, 2009

  • 96 Answers

SOURCE: Pfaff210 sewing machine foot pedal

google the manufacturer and see if you can get one by mail from ITALY

Posted on Dec 13, 2009

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