Question about Necchi 3101 Mechanical Sewing Machine
I tried to change thread in the bobbin case, and when I removed the bobbin a red plastic piece fell out from inside the case. I can't figure out how to fit it back in.
The red plastic piece sits adjacent to the inner metal piece with the sharp hook assembly. It does not sppear in the drawings in the manual. There is a cutout at its center that fits over the metal head protruding from the inner metal piece. When placed correctly you can see that the red piece fits precisely into the circumference of the metal housing in which it rotates. The outer metal piece is secured by the two black swing arms and the bobbin can then be easily replaced as usual. It helps to tilt the machine back slightly when inserting these pieces but be careful not to lose the red plastic piece inside. If it drops in it can be retrieved with a pair of needle nose pliers or similar.
Posted on May 27, 2012
That piece is a sweep that helps keep the hook clean. It is not necessary for the machine to use, I have thrown away many of them. If you can get your hook put back in you should be ready to go.
Posted on Jan 31, 2009
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Posted on Jan 02, 2017
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Do you have a manual for this machine? You need to follow the cleaning instructions and remove the needle plate, and clean under the bobbin holder. I've attached an image from my Janoma 6500 manual, it looks very similar to this Elna so I'm thinking its the same design bobbin and race. There may be a little triangular shaped tool in your kit but any short flat blade screwdriver will remove the two setscrews. (always good idea to unscrew off the pressure foot and take out the needle first so you've got room).
PLEASE NOTE: If you've never pulled this bobbin area apart before, good idea to snap pics with your digital camera as you go to refer to and for reference next time!!
This uncovers the bobbin holder area, you'll see there is a black plastic holder which your bobbin goes into which has the tension device on the side and this then sits inside an outer metal casing which is the hook race. The bobbin holder is held there by a magnet underneath it and sits up against another little stopper. Look at the bobbin case and the stopper, there should be two red marks that must line up. Are they???
If the answer is no, then you need to remove the bobbin case, clean out any lint and fluff using your little brush that came with the machine, and you may also have pieces of thread caught in here too. Once clean, place the bobbin case back into the outer surround, under the other piece and lining up the two red marks. This is where photos are so helpful.
Now replace the needle plate and screws, pressure foot, pop in a new needle and thread everything up again.
If the thread continues to catch then you may have managed to damage the bobbin case; as they are plastic if they move out of position the needle can catch and burr or pierce them. If this has happened you could try to smooth out the burring with an emery board or similar. Or you may need to replace it if damaged badly. I've changed mine twice so far because I've pierced it with the needle several times.
I hope that this helps you out, good luck with your machine.
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