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Understanding stitch length regulator in my Singer 15 knockoff

I was wondering if Ron or someone else could explain the operation of this on my Precision. There is a round disk with "R" (Reverse)at the top and "O" (Neutral)in the middle and "F" (Forward) bottom. There is a second disk rotating or fixed with a left sided screw that has numbers marked on it. Depending on how this disk is rotated the "F" lever can move only so much. I've noticed no difference in the stitch length by moving this disk to new positions. Any correction and advice is welcome. By the way, I know ISMACS has a digest for questions, but was more familiar with you all and the format of this group. Thanks, Sonya

Reply to
MSMenagerie
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Reply to
Melinda Meahan - take out TRAS

OK, I have a new one. On top of the machine, on the left above the take up bar there is a "knob/button" that can be pushed in or when pushed again it will pop up. WHat is this??

Reply to
MSMenagerie

That's the tension for your presser foot.

Reply to
Melinda Meahan - take out TRAS

Called a pop up darner. No pressure when all the way up most all the way down. I usually set them about 3/4

Reply to
Ron Anderson

Thanks! I am still unable to get the stitch length to respond. The stitches are lovely, but very small. Is there something I could double check to have set? S

Reply to
MSMenagerie

The lever on the right (stitch length ) all the way down should produce a stitch length of about 6 stitches to the inch. If not perhaps the needle plate is bent, stuff built up under the plate preventing feed dogs from coming up all the way. Maybe you are trying to give it to thick material to sew.

Reply to
Ron Anderson

If the stitch length lever won't move down, look for a screw or a collar that screws to lock the lever in place. It may be that you just need to back off on the screw to let the lever move.

Reply to
Pogonip

Success with regard to stitch length, now I've messed up the top tension! UGH! The tension seemed fine before, but when sewing shorter stitches it isn't a straight line, but rather slightly angled stitches. I'd know how to fix this on my modern machine, but have no idea where the adjustment is on this. Also, on the longer stitches the bobbin thread is making loops underneath the fabric so I have to play with that. I only get 5 minutes here and 5 there to piddle with it, but its interesting!

Reply to
MSMenagerie

Take some nice lint free thick thread and 'floss' the tension disks. Once you are sure it's clean between them, adjust the tension.

Reply to
Kate Dicey

Good point.

Reply to
Ron Anderson

Thank you. With around 50 machines of various ages around here, I've seen a few different ways to deal with stitch length. I do love the mechanical machines that are simple and direct in their approach. Not that my computer machines are less loved, but they are often inscrutable. As they say, there are 10 kinds of people: those who understand binary and those who do not.

Reply to
Pogonip

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