Question about Bernina Bernette 75

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The machine is threaded correctly but it is not stitching on the fabric,it was stitching but leaving spaces with no stitching ,so after re threading the machine and fiddling with the tension it now does not sew on the fabric .Help please!!!

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First I would replace the needle. Next, completely rethread the machine, making sure the thread is passing through the take-up lever. Next, remove the bobbin and reinsert it. This is a good time to also give the machine a quick cleaning, in case lint or thread is building up anywhere. Then try sewing again on scrap fabric and adjust your tension.
I hope this helps!

Posted on Apr 01, 2011

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Posted on Jan 02, 2017

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https://lindeegembroidery.com/common-causes-of-birdnests


Remove the thread from the machine.

ALWAYS raise the presser foot when threading the upper thread. This releases the tension disk so the thread will seat properly. Be sure to use a brand new needle and that it is the correct type needle for the project, thread, and fabric.
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Verify that the thread path is correct. Check that the bobbin is inserted correctly and threaded through the tension on the bobbin case properly. AVOID old or bargain bin thread. You may even try a different brand of thread (some machines and threads are just incompatible.)

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Nov 13, 2016 | Sewing Machines

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The tension on my machine is off.I don't know which thread to adjust.bobbin or top thread. on fabric top stitch seems ok,bottom stitch bunches up and is loose.How do I readjust the tensions?


If the thread problem appears under the fabric, it is a top thread issue.

If the thread problem appears on the top of the fabric, the bobbin thread is the issue.

Perhaps the upper thread is not seated completely in the tension disk. Remove the upper thread from the machine, ALWAYS RAISE the presser foot, then rethread from the beginning. Make sure the thread path is correct. Test your stitch.

If the thread is still looping under the fabric, the upper tension is too loose. Set the upper tension to the midway point. Test and adjust the tension until it is where you want it. Preferred tension is when both threads meet in the middle of the fabric.

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Oct 29, 2016 | Sewing Machines

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If it is creating a thread mess (thread nest) under the fabric, either the machine is not threaded correctly or you have forgotten to lower the presser foot before beginning to stitch.

Make sure you are starting with a brand new needle!

Remove all the thread from the machine.

Check that the bobbin thread is smoothly wound onto the bobbin and that the bobbin is inserted and thread properly in the machine.

ALWAYS RAISE the presser foot and rethread the upper thread. Check that the thread path is correct.

Set the upper tension to the midway point on the dial--this is usually the factory setting but may alter over time with use. Once you get your machine stitching without a mess, you can gently alter the upper tension until the two threads meet in the middle of the fabric.

Remember to lower the presser foot before beginning to stitch.

It also helps to pull the bobbin thread up to the top of the fabric and either wrapping both thread tails around a finger on the left hand or gently holding the thread tails between the left index finger and thumb. Then SLOWLY begin stitching.

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Sep 26, 2016 | Sewing Machines

1 Answer

Upper thread always cuts. Straight stitch doesn't work. The upper thread always cuts. The tension is No. 3. The stitches is adjusted to no, 2. The fabric is thin, soft and Lacey . Please advice.


Be sure to install a brand new needle of the type suitable for the fabric you are sewing.
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https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0ahUKEwiJuN_Np6bMAhVJKWMKHSGmDvAQFggjMAE&url=http%3A%2F%2Fwww.schmetzneedles.com%2Flearning%2Fpdf%2Fschmetz-needle-chart.pdf&usg=AFQjCNHTR52AmqwzvyCjbXmD5Ch52Va5_Q

Use a thread that is suitable for the fabric. If you are sewing fine, light-weight fabric, use a fine thread--avoid old or bargain bin thread. Use the same upper thread in the bobbin.

When threading, always raise the presser foot so the thread will seat properly in the thread tension and verify that the thread path is correct (consult the manual).

Standard tension is usually the midway point between high & low number. The stitch length could be set a little higher than a 2--maybe a 2.25 or 2.5 for light fabric.

Since you are sewing fine fabric, it sometimes helps to use a removable stabilizer to give the fabric some extra body while stitching--perhaps a wash-away stabilizer if the fabric is washable.

Test your machine on scraps of the fabric you will be sewing. Re-adjust the tension as needed. The correct tension is when both upper and bobbin threads meet in the middle of the fabric.

If the thread continues to break, then there could be a burr or nick somewhere that is catching the thread and causing it to break. Could also be a needle/hook timing issue.

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Apr 24, 2016 | Sewing Machines

1 Answer

Machine. Skips stitches and the thread breaks in the top tension.


First, install a brand new needle. Confirm that you are using the correct needle for the thread and fabric being stitched, ie the needle eye could be too small for the thread, the fabric is coarse or sticky causing the thread to wear/fray causing breakage, the needle is blunt or bent, a ball point needle is being used on woven fabric or vice versa...
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Second, remove the thread from the machine. Always RAISE the presser foot and rethread from the beginning--make sure the correct thread pathway is followed (consult the manual).

Verify that the tension is not set too tight. The tension is correct when both upper and bobbin threads meet in the middle of the fabric without any puckering of the fabric.

Use good quality thread--avoid old or bargain bin variety. And, use the same thread for the upper and bobbin. Some thread brands may work better than others in your machine. You may need to experiment to find ones that work best.

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There is also the possibility that there is a nick or burr somewhere that is catching the thread. You can wrap your index finger with old hosiery (or similar fine fabric) and rub around the thread path, in the bobbin/hook area, needle plate, etc. A small burr can be smoothed with a fine emery board. A big burr may require replacement of the part or service by a technician.


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Apr 23, 2016 | Sewing Machines

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Model 525B. Why is bottom stitch loopy and the hand wheel and needle jam?


try a new needle

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Jan 10, 2016 | Janome Sewing Machines

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My thread keeps bird nesting on the bottom of my fabric what am I doing wrong? What are the correct settings for a straight stitch?


Is your bobbin threaded correctly? You should be able to pull out the thread slowly while feeling it very slightly holding back. It should not pull out easily or quickly.
Could be something wrong with your tensions, try adjusting the upper tension first by starting at the middle setting and working gradually higher and then lower till you get a neat even stitch.

Nov 29, 2015 | Sewing Machines

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If it was sewing correctly BEFORE the needle break...why did the needle break in the first place?...and what fixes did you make?
If it sewed properly...what changed?

Cut your upper thread close to the spool...make sure the presser foot is raised and pull the cut off thread section through/out of the machine from the needle area (sewing direction...do not pull the thread backwards!)

Clean out the bobbin area...remove any traces of lint or pieces of thread...look for any broken off needle pieces... brush the bobbin area out....then add a drop of sewing machine oil (but only if your manual says to oil that area).

Remove the needle plate to expose the feed dogs...brush/clean out that area too and add a drop of sewing machine oil...then secure the needle plate back on.
Replace the needle...do it again...yup...some needles arrive bad from the factory. Make sure the needle is inserted and positioned properly. Then thread the machine WITH the presser foot in raised position. (The thread needs to get seated into the upper tensions.)
..with the.presser foot down...thread the new needle.
Oh...and use the correct needle for the thread. (a universal 80/12 is standard).
Thread can cause issues too. Try a different bobbin, or maybe a different spool of thread to see if that makes a difference.

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Machine not sewing


Make sure you have threaded the machine from right to left, it sounds like the needle thread is trapped under the lower looper thread and cannot form a stitch.........start the threading over from scratch like this:

  1. Lower Looper
  2. Upper Looper
  3. Left Needle
  4. Right Needle
Is there a diagram for how to thread on the inside of the door ?

Follow that slowly and carefully to make sure you have not missed any thread guides on the way, as each one needs to be followed through to ensure correct tension and thread progression.

If you are certain that all threaded correctly, did you have a fabric jam and pulled it loose ? If so, the timing may well be affected.

Post an update and we'll get this right.

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Feb 01, 2008 | Sewing Machines

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