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BERNINA: Deco 340. Top thread pulls through to bottom and tangles.. Help

Needle broke, replaced it and now stitching is a mess!!!

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 84 Answers

SOURCE: bottom stitch keeps getting tangled up after needle change

Hi,

Sounds like the needle has hit the hook.Open the bobbin area door, remove the bobbin and bobbin case. The swing the two lugs that hold the hook retaining ring to the side so you can remove the hook. CAREFULLY inspect the sharp tip of the hook. It will be sharp and 'chisel' shaped. ANY marks, scratches or burrs on the hook must be removed carefully with 180 or 400 grit 'wet and dry' abrasive. It must be as smooth as a 'babies bum' !! If you are not confident, take it to someone to do it for you. The hook is expensive, so don't mess it up!  

Good luck!

Posted on Oct 22, 2007

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  • 3 Answers

SOURCE: Bernina Bernette 600 Deco embroidery machine

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

Posted on May 22, 2008

  • 89 Answers

SOURCE: I have a Bernina Deco

First make sure you have the presser foot lever up when threading the machine.
It you have been doing that then I would check the bobbin area for burs of any kind on the bobbin basket (sometimes you can sand the off). That's about all you can do with the covers on.
Hope this helps

Posted on Mar 24, 2011

Tally Girl
  • 1129 Answers

SOURCE: Thread tension problem when sewing on heavy fabrics

If you are using buttonhole twist or heavy topstitch and normal thread underneath machine tensions wont like it. Try using regular thread top and bottom but use two same colour on top and thread both through needle but put one either side of tension discs if you can. Top stitching jeans is problematic for manymachines even Berninas

Posted on Jan 13, 2012

SOURCE: Thread jams starting with 1st stitch on Bernina 160

since a needle broke, & a new needle was put in, was the needle inserted correctly, normally flat side to the back of the machine, & pushed all the way into the needle holder
rethread the machine top & bobbin
make sure the bobbin is inserted correctly into the bobbin case.
if none of these suggestions help, then it's possible that when the needle broke it could have caused the machine to jump time & would have to be checked at a sewing machine shop

Posted on May 22, 2012

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1 Answer

I have a Bernina 350 SE. Trouble with buttonholes: thread accumulates in lumps intermittently. Stitches become very small, fabric stops advancing, thread piles up.


Have you tried re-threading the top thread? Sometimes the stitches get small and pull tightly because the thread is looped around a guide or the thread spool. Just a thought as that happens frequently with my machine.

Oct 19, 2017 | Bernina Sewing Machines

1 Answer

My bottom tention of Bernina Deco 340 is to loose. How to I correct is. The top treat shows to much at the bottom


Um, the top thread is showing on the bottom of the fabric? The top tension is too loose. The two threads create a tension battle, one pulling against the other. To pull the bobbin thread up, tighten the top tension. The tension is accurate when the two threads meet "in the middle" of the fabric. On thinner fabric, you might see a tiny spot of bobbin thread on the top and a tiny spot of top thread on the bottom.

Aug 24, 2017 | Bernina Sewing Machines

1 Answer

Sews 1/4" and then sews in place


1) remove upper and bottom threads. Try sew without threads.
Is fabric transported corectly?

NO:
- Drop feed dog button is OFF
- Dust under stitch plate
- Transporter malfunction (must be taken for a service to the BERNINA dealer)

YES:
- Upper or bottom thread jammed
- The upper thread tension is too tight.
- Wrong needle used (probably small ...)

Nov 20, 2013 | Bernina Bernette Deco 600

1 Answer

My Bernina Deco 340 does not pick the bobbin thread but keeps saying the top thread is broken


Check the needle timing. Go to bernina on the web and download the service manual for your model. The eye of the needle should be at the pick arm of the bobbin case Too early or late and it will miss the cotton.

May 30, 2013 | Sewing Machines

1 Answer

Thread jams starting with 1st stitch on Bernina 160


since a needle broke, & a new needle was put in, was the needle inserted correctly, normally flat side to the back of the machine, & pushed all the way into the needle holder
rethread the machine top & bobbin
make sure the bobbin is inserted correctly into the bobbin case.
if none of these suggestions help, then it's possible that when the needle broke it could have caused the machine to jump time & would have to be checked at a sewing machine shop

May 21, 2012 | Bernina Virtuosa 160

1 Answer

I have a Bernina 340 Deco embroidery computer. I am having trouble (lots) with the thread looping on top of fabric.


Make sure the bobbin case and shuttle are free from any thread tangles.

Thread with the presser foot up.

If problem persists, the machine will need to go into the shop where an authorized Bernina tech can check the timing and do a general service of the machine.

Take a sample of the mis-stitching.

Mar 20, 2010 | Sewing Machines

1 Answer

Bernina Bernette 600 Deco embroidery machine


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

May 19, 2008 | Bernina Bernette Deco 600

2 Answers

Thread tension problem when sewing on heavy fabrics


Sometimes when I need to use heavy thread for top stitching to reinforce a seam that has come undone, I will use the heavy thread on the top and regular thread on the bottom. I haven't tried it the other way around for hemming but I would think it would work. I do not currently have a Bernina.

Jan 15, 2008 | Bernina Artista 180

2 Answers

Bottom stitch keeps getting tangled up after needle change


Hi,

Sounds like the needle has hit the hook.Open the bobbin area door, remove the bobbin and bobbin case. The swing the two lugs that hold the hook retaining ring to the side so you can remove the hook. CAREFULLY inspect the sharp tip of the hook. It will be sharp and 'chisel' shaped. ANY marks, scratches or burrs on the hook must be removed carefully with 180 or 400 grit 'wet and dry' abrasive. It must be as smooth as a 'babies bum' !! If you are not confident, take it to someone to do it for you. The hook is expensive, so don't mess it up!  

Good luck!

Oct 22, 2007 | Bernina Activa 140

1 Answer

Error message


tell me what to look at to fix the problem

Jun 11, 2007 | Bernina Bernette Deco 600

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