Question about Bernina Virtuosa 160

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Faulty stitching the top thread won't clear the bobbin case, after one or two stitches forward on straight stitching, the whole thing bogs down and I have to snip a bunch of loops free from the underside of the fabric. There never really is a locked stitch made at all. It occurred while sewing denim seams, using a denim needle. In zigzag.

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  • Contributor
  • 4 Answers

Check to make sure that the timing is correct for the loop to be made..guessing 3- 4 mm past bottom center. also the thread size can make a difference. it may be catching in the basket at the positioning finger for the basket.it must be able to slip past the finger to create a stitch. hope that helps point you in the correct direction.

Posted on Mar 18, 2014

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Posted on Jan 02, 2017

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  • 106 Answers

SOURCE: Can't get a neat straight and stretch stitch underneath

Sounds like a bottom tension problem, to be sure I would have to have a look, I would suggest you have it looked at. Not sure about the materials you are sewing and have serious doubts as to whether the machine you are using is up for the job and will give you a satisfactory finish. It is possible a "walking foot" machine is what you need.

Posted on Mar 26, 2008

  • 1116 Answers

SOURCE: my top stitch is flat, but the bobbin is bunching

What looks like a bobbin problem is sometimes the threading of the top thread.

If you threaded the machine with the presser foot down, the tension is closed and the thread cannot enter as it should.

Improper seating of the thread into the tension results in loopy stitching as the thread is not being guided at the proper tension to create a satisfactory stitch.

Try re-threading the machine with the presser foot up.

Posted on Feb 20, 2010

aviral_srms
  • 1216 Answers

SOURCE: Bernia1130 will only stitch a very short stitch

If you have a drop feed mechanism make sure you have not dropped the teeth down by mistake, make sure you have enough pressure on the foot, remember you should not be able to pull the fabric through by hand if the teeth are up.
Make sure the teeth are not pushed down . i believe this is the problem you have

Posted on Jul 31, 2011

Tally Girl
  • 1125 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: Bernina activa 210 won't zigzag and has bobbin issues on straight stitch

it's very possible that the machine is slightly out of time & needs to be service at a sewing machine shop
is the fabric & thread & needle compatable with each other?
did you use every thread guide when threading the machine?
is the bobbin in correctly?
is the bobbin warped?

Posted on Mar 20, 2012

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2 Answers

Why isbobbin stitch on top weird how do i fix


sorry but the bottom stitch does not move but the top one does . if you want straight stitch the machine setting has to be changed to straight .

May 22, 2015 | Sewing Machines

1 Answer

Bottom thread is still loose even if i try to balance the tension, how do i balance the thread tension?


You bobbin tension CAN be adjusted. First, thread your machine with different colors in the top and bobbin, set your top tension at its default, and run a line of straight, and then a line of zigzag stitches, and compare the results at the top and bottom. You will be adjusting your bobbin to your top tension. If the top tension looks like a straight line instead of stitching and the zigzag looks like "chicken tracks" instead of a zigzag, but the bottom looks like a zigzag, your bobbin tension is too loose.

Remove the bobbin case, and locate the straight-slot screw. There are generally two; one is a Phillips and one is straight--you want the straight one. Leave the other alone.

The rule is "lefty-loosy, righty-tighty." If your stitching displays the above symptoms, it needs to be tightened, so turn 1/4 turn to the right--no more--then test again. You will need patience, but don't turn more than that. It is easy to do, but if you don't do it systematically, you can make things worse, and very slight adjustments can alter the stitching significantly.

Apr 15, 2015 | Singer Sewing Machines

3 Answers

How do I set a straight stitch? What is causing the top thread to break?


You do not say which machine you have. As for a straight stitch, make sure the needle is central and not in zig zag mode.
The thread can break for several reasons, such as. Incorrect tension.
:Wrong thread for the material.
: Thread in bobbin different from the top thread.
:Old thread.
: Not threaded correctly.
: Needle not inserted correctly, or incorrect needle.or the thread could be wound around the spool holder pin,
Try removing the spool and turn it around.
Hope this helps.

Mar 02, 2015 | Sewing Machines

2 Answers

Why does my thread knot on the back when stitching in place?


Several things to try:
Pull thread tails (both bobbin thread and upper thread) straight back and when you lower the presser foot, make sure they are held down straight back. This may or may not be enough to solve the problem, but it is simple to try, and often works. You might want to hold the thread tails while you start sewing.
Use a starter--folded piece of fabric scrap about an inch long--and begin sewing oink middle of starter. Push the fabric you want to see right up to the starter and keep sewing from the starter right onto your project without lifting the presser foot or cutting the thread. When you finish sewing, cut the little piece of thread between the starter and your project.
Before lowering presser foot, use wheel to lower your needle once and then pull up bobbin thread to top surface of your project. Then hold both bobbin and upper thread tails, lower your presser foot, and begin sewing. Release the thread tails after a few stitches.
Hope this helps. Those nasty "thread nests" are a real pain.

Jul 13, 2014 | Janome Sewing Machines

1 Answer

Singer xl-400 bobbin tread to loose when momograming


It means that your top thread tension is tighter than your bottom thread, and it's pulling your bobbin thread up. You loosen your top thread by turning the dial towards the "S." You should only have to loosen it by a maximum of one number; if it's more than that, you may have to adjust the bobbin thread tension.

You do that by first turning off the machine and removing the embroidery unit. Turn the tension dial to S. It helps to use a different color top and bottom thread, with the scrap fabric a third color. Run a straight stitch and zigzag stitch and examine them. If one size of the zigzag looks like "chicken tracks" or one side of the straight stitch is a straight line, it means that side is too tight. Take a look at your user's manual on page 11. If your top tension is on "S" and it is the side that is too tight, you will need to tighten the bobbin tension, to match the top tension. Tensions are a BALANCE.

The next step needs to be done systematically and carefully. If you don't, you can really make things worse. Set your mind to doing everything step by step--don't get tempted to jump ahead. Take the needle plate off and take out the bobbin case, and locate two screws on the side. One is a Phillips screw--leave it alone. The other is a straight screw--that's the one, and you will need a tiny screwdriver to adjust it.

The rule is "righty-tighty, lefty-loosey." Remember, you are trying to match the top tension! Give the screw on the case no more than 1/4 turn, reinsert and retest. You should see at least a little improvement. Keep doing that until you have balanced your stitches, and DON'T jump ahead! The difference between too tight or too lose is often a very small turn of that screw--especially when you're close.

Jun 11, 2014 | Singer Sewing Machines

1 Answer

Bernina activa 210 won't zigzag and has bobbin issues on straight stitch


it's very possible that the machine is slightly out of time & needs to be service at a sewing machine shop
is the fabric & thread & needle compatable with each other?
did you use every thread guide when threading the machine?
is the bobbin in correctly?
is the bobbin warped?

Mar 20, 2012 | Bernina Sewing Machines

1 Answer

Just borrowed a friends machine but no instructions for threading cotton from top to needle and how to put in spool.Have got thread on spool.Just need to sew a basic hem


You haven't said what mail and model machine this relates to.

You could try http://sewing.about.com/od/sewingmachineindex/tp/operatingasewingmachine.htm, there is lots of good general information there which might be of help, most machines have similar functionality, ie a bobbbin goes into a rotary hook and there will be a tension spring on that thread. Top thread will also need to go through tension device, usually discs in the threading path from spool to needle.

There is usually a stitch length and stitch width dial/knob/digital selection and a stitch selector for different utility stitches such as blind hem, overcasting etc. If you just want a straight stitch, then stitch length would be 2.5 or 2.7 maybe for a heavy fabric.

You need to put in the correct sized needle for the fabric you at sewing too, http://sewing.about.com/od/sewingmachineindex/ig/Sewing-Machine-Needles/

Important thing is threading up so that both threads are under tension, make sure the pressure foot is raised during threading so the top thread can go between the tension discs. The bobbin will either be drop in top loading in which case you need to click the thread into a tension spring on the side of the bobbin holder. Or front loading bobbin inside a removeable bobbin case which is mounted vertically. The bobbin case will also have a tension spring on it.

Also you could try You-tube - there is lots of videos there for different brands.

May 15, 2011 | Sewing Machines

2 Answers

Have a brand new Singer 1507 that keeps jamming the bobbin thread. Have followed threading and winding bobbin instructions closely, but am still having problems with the bobbin thread jamming after 1-2...


I would try adjusting the tension on the machine - this sometimes causes the bobbin thread to jam while sewing. Re thread the entire machine including the top thread. Also it is recommended to use new thread as old thread can ball up after time. If no luck I would call the store you purchased the machine from.

Nov 30, 2010 | Sewing Machines

2 Answers

The bobbin stitch is not as straight and tight as the top stitch. I'm using the right needle for the denim a 110-18.  I have the tension set at 9 and I have played with it =all the way down to 0....


Try adjusting the bobbin tension. My Pfaff (with a front load bobbin) has a tension adjustment on the bobbin housing. When you take the housing out, make sure there is no lint or stray thread caught anywhere in the bobbin casing, load the thread. Then dangle the bobbin housing from the thread end. A gentle pull (more like a ****) on the thread should allow the bobbin casing to slide down 1/2 inch or less. If the casing falls too far, increase the tension on the bobbin thread. Good luck.

Dec 29, 2009 | PfaFF Sewing Machines

1 Answer

Missed stitches noise when it happens


Firstly, turn machine off then turn back on. Change needle. Re-thread the top and bobbin threads. Make sure you have not set the machine for a sideways stitch but you have been using a single stitch foot (recipe for Disaster!). BEFORE trying to sew, wind the machine by hand through a stitch or two (take the thread out of the needle's eye first) and look closely to see if the needle is in fact hitting something. If it is, then the needle needs re-centering and you will have to take the machine for repair to get this done.
Make sure the top thread is going into the tension disks. The presser foot MUST be up while you are threading. Hold onto the thread just as it comes off the spool and when you get down to the needle give a tug to be sure the thread is seated in the tensions before threading the needle. When you insert the bobbin, be sure the thread "clicks" into the tension slot on the bobbin case. Check the Sewing Advisor to be sure you are set for the correct fabric and stitch for what you are sewing. Have you cleaned out the bobbin area? Remove the clear or smoke bobbin cover, either use the tool provided or just press down firmly and slide forwards the metal feed dog cover (feed dogs down first), lift out the light grey plastic bit that half covers the bobbin case, remove bobbin case. Use the brush and clean out all the fluff from the bobbin area. Then check the bobbin case and clean it too. You can use a piece of strong thread or UNWAXED dental floss to clean out between the tension springs (the bit where the bobbin thread 'clicks' into). Reassemble the bobbin pieces in reverse order, making sure that when you replace the metal feed dog cover you push it all the way to the back and it too will 'click' into place. Hope something in the above works for you.

Dec 23, 2009 | Husqvarna Designer I

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