HI THERE I HAVE BOUGHT A NECCHI 681C SEWING MACHINE SECOND HAND WITH NO INSTRUCTION MANUAL , I CANT GET THE MACHINE TO FEED THE FABRIC AS ITS SEWING IT JUST SEEMS TO SEW THE SAME ROW AGAIN AND AGAIN ??? I ALSO CANT GET IT TO SEW ALPHABET OR NUMBERS ?? PLEASE HELP

A lot of machines have a control knob/lever that raises and lowers the feed dogs. However, remember that when the control is activated, the feed dogs will not rise until the machine actually begins to stitch.

If the feed dogs do not rise, then there is most likely a problem and needs to be serviced.

Depends on your machine, but remember if your machine has a 5mm needleplate opening, that limits the size of the lettering you will be able to produce. Unfortunately, to get larger output, you would need to upgrade to an embroidery machine or do the lettering manually with a satin stitch. You can, after practicing, do monogramming free hand with your machine and a satin stitch. However, remember, if the stitch width is limited, even satin stitch will still be limited by that stitch width.

How to Monogram with Basic Sewing Machine (be sure to use a stabilizer behind the fabric. Layer the fabric, then stabilizer, and put in an upside-down embroidery hoop--that way the fabric will be on the top and everything will be flat against the machine's sewing surface. )

How To Do Free Hand Machine Embroidery
(in this video, she puts the stabilizer on the top of the fabric, but it is wash-away stabilizer. If using a tear-away or permanent stabilizer, be sure to put it under the fabric.)

Sewing Perfect Satin Stitch Wildly Wonderful Wearables Patterns Notions...

Machine Appliqu Basics 5 Stitching irregular shapes using satin stitch...

How to Use Satin Stitch Foot

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I suspect the knob on the lower right hand side is the feed dog knob. The "knit" symbol is for the feed dog. One setting drops the feed dogs so you can move the fabric yourself, ie free motion quilting. The other setting raises the feed dogs so the machine will feed the fabric for you.

to find a manual, Search the internet:
Brand + Model + the word "Manual"
...

https://www.google.nl/?gws_rd=ssl#q=necchi+681c+parts

https://www.google.nl/?gws_rd=ssl#q=necchi+681c+instruction+manual

Most sewing machines can use a double needle, the one with the single mounting shank and it turns into two needles.
MAKE sure you have Zig Zag needle plate installed to accomodate the double needle.
Turn hand wheel slowly to test then use thread and fabric and turn flywheel by hand to test sew.

the presser foot or what ever foot your sewing with does not feed the
fabric,, the feed dogs in the needle plate are what moves the fabric
to be sewed, the feet only hold the fabric against feed dog so the
machine can use the needle to sew the fabric.
if the fabric is not moving then the feed dogs have to be checked
can you see the feed dogs in the needle plate area are the up or
down?
do you have a manual for the machine?
a manual help to know where the feed dog lever is, I'm sending
you a link for a manual for the machine, so you can look for the feed
dog lever, if the feed dogs are up then there is something wrong
with the feed dogs & they need to be checked.
but if the feed dogs are down then look in the manual & see where
the feed dog lever is & put it in the up position & see if that brings
the feed dogs up to the sewing position, if the feed dogs do not
come up then the feed dogs need to be checked.

http://www.sewingpartsonline.com/instruction-manual-necchi-6015.aspx

I'm a bit confused, this isn't a serger machine as far as I can see. So do you mean an overcasting foot where you sew a XXXXX type stitch along the edge of the fabric? The overcasting foot just helps you to line up the fabric edge and sew over it neatly.

if you go to this page http://www.sewingpartsonline.com/necchi-6022-sewing-machine-parts.aspx
there is an instruction manual for sale.

http://sewmamasew.com/blog2/2009/06/feet-feet-feet/ is also a great resouce on sewing machine feet with good photos of what they are used for.

Here is a video of overcasting foot in action http://www.sewingmachine-sales.co.uk/sewing_machine_info/video/34/adjustable-overcast-foot.html

If you are wanting to sew knit fabric then you just need to use a small zig zag stitch and a ball point needle to put elasticity into the seam. Or your model may have a stretch stitch, where the fabric is moved forwards and backwards during the stitch formation to add some elasticity.

Sewing elastic stretched onto fabric is a bit different with a SM, can be fiddly and hard to keep everything lined up nicely and stretched. Some machines have a little device which clips onto the needle plate in front of the needle that you can feed elastic through and tighten it to tension it, then just use a three step zig zag stitch to seam over this onto your fabric. But I don't know if Necchi has such a thing, your needle plate would need holes in front for it to clip into. Elna had these on their swiss machines in the 80's but haven't seen a similar device for a while.

Hope I've answered your question and not completely misunderstood your problem. Purchasing a manual is often the best way forward when a machine is unfamilar. Or www.sewing.about.com is great resource.

It will always jam if the tread isn't seated in the tension disc. put one hand on each side of the the tention disc whn you are threading and make sure that thread seats

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