Oily cotton when stitching

Initially, the "safety device has been activated" error is usually caused by a jammed thread or fabric.
2 possible causes
The upper thread has become tangled around the bobbin case,
The needle is bent and hitting the needle plate, so the machine stops.
To fix this error.
1, Unplug your machine,
2. Remove the needle ( I know it is in a down position and locked up) but you can be able to remove it.
3. After removing the needle, turn your hand wheel if still locked up or stiff. Remove your needle plate and remove all your threads both upper and lower.
4. Clean your bobbin area using a brush take a deep breath then blow.
5. After that, try to turn your hand wheel again, if the hand wheel moves freely, rethread your machine and replace your needle with a new one. Then try to sew a few stitches using a hand wheel (do not sew using a pedal) if the hand wheel creates stitches that is the time to sew using the pedal.
If the problem is still there, you possibly have broken gear that needs to be replaced

http://www.fixya.com/support/t26888246-babylock_hand_wheel_wont_move

Hai, I think your machine timing is changed. So you can't sewing properly. Please check the timing and put the oil everyday all oil parts properly.

possibly needs new belt or belt adjustment.

12 wt thread generally will not work well in the bobbin...


"Aurifil 12wt Thread
Aurifil 12 wt thread is ideal for hand quilting, big stitch hand quilting and machine quilting. 12 weight thread creates a more defined and often primitive look. It's great for designs that use a longer stitch length if using a machine. When machine quilting with 12 wt thread, use 40 wt in the bobbin, increase your stitch length, lower your tension, use Topstitch size 90 needles and stitch slowly."

since the machine has been sitting up for 2 years & it smells bad then the
machine needs to be serviced

Hand wheel "stuck" because you have an obvious jam. Remove bobbin and clean bobbin case, put good quality sewing machine oil on oscillating hook and put new needle in flat side toward back all the way UP, and make sure presser foot UP when you thread machine. Jimmy

Make sure you have a new sharp needle installed for both problems and sometimes you need a particular kind of needle for the fabric. Also some machines don't deal well with 100% cotton thread. For some reason it gets caught up in the machine somewhere and breaks. Gutterman and Metrosene make excellent although slightly more expensive threads. Coats and Clark thread is good too. They make an all cotton thread but it doesn't come in as many colors. If you have the old spools of cotton thread from Walmart, just use them for topstitching if you need the color. Other wise, use them for hand stitching or throw them away. One more thing that I can think of off hand, one of my machines does not like lining fabric. For some reason the thread breaks if I stitch really fast. If you have to use that thread, you may try sewing slowly. One more thing, when was the last time your machine was serviced? This can make a huge difference if it's been awhile and you use the machine a lot. Good luck. Hope any of this helps.

Probably the most important contol on your machine is this one that regulates your top thread tension there are reason for having to reset your tension.Classified your fabric that you are using there are several set up of tension in every fabric that you use.Cotton fabric is most easier other than silk fabric make a record on this set up.The required tension depend upon the stiffness of the fabric,thickness,layer of rabric to be sewn and required stitches.Try cotton fadric turn tension dial to N0. 3 and Stitch set to from 8 to 12 defend to what is nice to you.

Take out the needle, tighten the needle clamp screw.

Select the zigzag setting plus the largest stitch width, run the machine quite fast for a few seconds. Turn the hand wheel so the needle bar is at it's lowest, turn power off, get hold of the needle bar and move it side to side half a dozen times.

Turn on power, run the machine again as before.

Go through all stitch type settings zigzag/straight etc and run the machine in each setting.

If after all that the problem is not solved I am afraid you need a sewing machine tech to have a look at it.

It would be interesting to know the make of machine and how old it is, plus when it was last serviced.
Best of luck
Rob