How to work the bobin - Singer Tiny Tailor TT700

Usually there is a wheel or switch to move in order to engage the bobbin winder. Also, most bobbins have a little notch or hole that corresponds to a pin on the base of the winder. If the pin isn't inside the hole/notch, it won't work.

That's how that machine works. You don't loosen the hand wheel or anything, Simply put the bobbin on the winder and go.

To "wind" a bobbin you can:
1 - Look in your book
2 - Google : how to thread a bobbin on a kenmore "12 stitch"
3 - Youtube https://www.youtube.com/watch?v=Fe11QQubfqw
4 - Ask a friend

To "make a bobin"
1 - Get some 0.5mm stainless steel
2 - Cut two 19mm circles out of the 0.5mm steel
3 - Drill a 6mm hole in the center of each circle
4 - Solder (silver solder work the best) the 2 circles together with a 6mm round by 9mm tall cylinder in between the two 19mm circular pieces.

if the bobbin winder spindle will not return to it's original position, then there's a part in the machine that not working correctly, & it needs to be serviced,

yes something is wrong with the machine , it needs to be repaired

With out looking at the machine it is hard to determine the exact problem, but make sure your bobbin thread is placed in the bobbine case corretly, and pulled through the little tension area on the bobbin case.

Next make sure the upper thread is in the tension discs, if not this can also cause you a problem, plus if possible used a little canned air (with the pressure foot up, machine unplugged and thread removed) blow out the tension area.

Good luck.

If there is a screw on the side of bobbin case try tightening it up.This usually worked on my old machine.

Try changing your needle.

i think your putting in your bobin backwards,
to check put your bobin in and hold bobin , and bobin case by thread if it unrolls its backwards,
hope this helps!!

This could be caused by many things but I would suggest that you take the machine to your local dealer for them to have a look at as the bobbin case may be the problem and they may have to replace it. If you look at the bobbin case it should be smooth all the way around - if there's rough edges then that could cause a problem. Also if the bobbin case jumps out of the socket then this is a good indication that you need to have it replaced.