Question about Singer 3343 Mechanical Sewing Machine

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Tension issues Hi, I have an old machine--Bernina 807--and the stitching does not look right. When I change the tension dial to the farthest it can go on the minus (-) side, it almost looks right, but not quite. And every once in a while it skips a stitch. I oiled it and cleaned it, but that didn't solve it. What can you recommend? Thanks for your help.

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  • Anonymous Mar 30, 2014

    My serger is making a really loud noise. It is stitching ok and I have oiled it and changed the needle. It is a loud squeaking noise



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I'm working on 2 different singers. One, Singer 3343C has upper and lower tension problems that turning the dial just doesn't help. How do I adjust the tension on this drop-in bobbin carrier? My other machine is Singer Model 15 (AL311850), I'm having upper tension problems and the machine is sewing loudly-it's never done that before. Help!

Posted on Feb 03, 2008


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Posted on Jan 02, 2017


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Bernina serger 1150mda my thread is coming out of the tension dials

Be sure to ALWAYS RAISE the presser foot when threading the machine. Also, when threading, give each thread an extra little tug when going through the tension mechanism. (Grab the thread above and below the tension device and gently tug.) Sometimes (on my machine anyway) the thread will make a little "pop" when it seats in the tension.

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What model singer buttonhole attachment will fit a Bernina 807 minimatic machine. This question was asked but I can't find the answer.

Most likely a Singer presser foot will not attach to your Bernina. They are not interchangeable.

You can also probably use something like this:
but you need to purchase a snap-on shank adapter for your Bernina, like this:

Or, are you talking about the presser foot? Bernina #033? You can usually find a replacement through eBay, or even purchase a snap-on shank and pick up a snap-on buttonhole foot. But, if you have another zig-zag foot or open-toe presser foot, you can probably get by with using it as long as you can see your marks on the fabric when you stitch.

If you are actually referring to a buttonhole attachment like what is available for new machines, you may be out of luck. Probably not any available for this older model. The automatic buttonhole attachment usually has a sensor that your machine does not accommodate and the buttonhole attachments have a different shank that will not work on the older machines.

However, the buttonhole dial on your machine should work just fine. You just need to do more pre-work, ie measuring the button and marking the buttonholes on the fabric before stitching them. Even if the machine is only a zig-zag, buttonholes can still be done on them. Just be sure to practice a few buttonholes on scrap fabric before trying them on your garment. Get the stitch length so the zig-zag stitch has no gaps between threads but also does not overlap the thread next to it. Also, check that the tension does not cause the fabric to pucker (be sure to use a stabilizer between the fabric to prevent the fabric from stretching or distorting).

Button hole MPG (good tutorial)

807 Manual: (pg 27-28)

Tutorial how to sew buttonholes with the BERNINA presser feet no 3 3A 3B...

Genuine Vintage Bernina Old Style Presser Foot 033 Manual Buttonhole eBay


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The bottom dial on the right of your machine is the stitch length selector. The dial at the top right is the stitch width selector.


Dec 05, 2015 | Bernina Sewing Machines

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The machine is not stitching correctly,especially on zig zag # 3 stitch selection. I put two different thread colors and the zig zag on the front and back of fabric are both the bobbin thread. Now the...

If the bobbin thread is coming up to the top, then the thread is not under tension correctly. I think that this is a top loading bobbin so the bobbin will go into the bobbin holder, then you pull the thread back and press it into a tension device - should hear it click into tension. Now pull the thread back towards you and it should not come out of the tension. The bobbin should turn anticlockwise as the thread is pulled from it.

These bobbin holders usually will have a small adjustment dial on them and it should have the standard setting marked in red. It is very unusual that you would need to change this but check that it hasn't been messed with perhaps. If you have the machine manual check where they say the dial should be set. More likely that the thread is just not into tension fully or at all.

The manual may give you other troubleshooting tips too.

A good resouce is for general machine tips, cleaning and threading issues.

Hope this helps.

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How do I use the button hole foot on the Bernina 807 minimatic?

There isn't an automatic button hole on this machine. You can do it manually. Thread the bobbin thread as usual, but put it through the little hole on the hook in the bobbin case. Set the stitch length between 0 and 1, like a nice satin stich. Set the needle position to the far left and the stitch width to 2. Sew down the left side. Center the needle, set the width to 4 and lower the feed dogs, stitch about 6 stitches across the bottom. Then reverse the direction, set the needle to the right, stitch width to 2 and go back up the right side. Lower the feed dogs again, set a wide stitch and finish the top.

Another good option is to buy a universal presser foot shank from Bernina and then attach an old cam type buttonhole attachment from Singer. They make beautiful buttonholes and you can even do a keyhole button hole.

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My Bernina 1530 stitches are faulty - with loops underneath, even though it looks ok on top. When I remove and rethread the bobbin, the stitches are ok for 6-12 inches then start looping again. I tried to...

This is almost always indicative of an upper tension problem.
First, make sure you're using a good quality thread. If you're using thread that's not of European manufacture, you're probably filling your tension assemblies with little fuzzies. Coats and Clark Dual Duty is the most notorious thread for causing tension issues. If you have a bunch of this thread: throw it away or use it for hand sewing.
Turn your machine off, and use some canned air to blow out your upper tension assembly. (It looks like a couple of little cymbals inside the thread path.) Set your tension dial to 4.5.
When threading, right before you actually thread the needle itself, and with the presser foot up, "floss" the thread back and forth by holding the thread at the top by the spool with your right hand, and down by the needle with your left hand. This will ensure that you force the thread into the tension assembly.
Also ensure that your bobbin is oriented the right direction, but this would be a less common cause for your symptom.
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It could be that there is a loose piece of thread, or some fluff which is obstructing the tension gauge. Try blowing around the theading area (or even run the hoover pipe near it to see if you can **** it out). I cleared mine by folding a piece of non fluffy material and rubbing gently between the tension dial and machine.

Good luck

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