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I can not see how to open the top to see if I have a loose connection.

It looks like there are little screws but I can not get the top loose and the screws are hard to get to

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  • Sewing Machines Expert
  • 381 Answers

Please take the machine in to a authorized repair shop and let them take a look for you. More than likely you don't have the tools to disassemble the case, or and repair the problem, so let a professional make the repairs so it's a safe machine to operate.

Cheers,
Kelly
San Diego, CA
Embroidery Services

Posted on Nov 30, 2014

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1 Answer

Bobbin tension is too loose


Ok, go a head and set your top tension to "normal" Then take out your bobbin case and get our your tiny screw driver. Find the small screw that holds the tension spring on the case..

First carefully examine the spring (look for lint jammed under it, etc.) Then turn the screw clock wise a little bit..(perhaps a quarter turn) reset your bobbin and put back in the machine. Sew a test strip. If your stitch is better, tweek the bobbin screw a bit more. Use caution though you don't want to reef down too much and break the screw.

Aug 02, 2012 | Singer 7256 Sewing Machine

2 Answers

Bottom tension is too loose


You really need a proper set of weights and test spindle to adjust the bobbin tension, however if the bobbin tension is genuinely too loose, you can adjust it by turning the tension screw clockwise - this is the larger of the two screws on the side that are attached to the spring under-which the thread goes when it comes off the bobbin. You only need to turn the screw a little bit to make a big difference to tension, so dont overdo it.

Jan 27, 2012 | Bernina Artista 180

1 Answer

The hand wheel is very stiff and the foot control cannot electrically move the needle up and down either...just humms. The machine looks like it has had very little use. From the 70's and I just...


The top cover just pops open which is why there are no screws. Just push up from the front side and it should open. On older machines, this may take a little bit of force. :)

Aug 26, 2011 | Kenmore Sewing Machines

1 Answer

The underneath stitches are loose


When you see loose stitches underneath your sewing, it usually means that the top tension needs tightening. Write down where your tension disk is before you turn to a higher value, then sew. Keep doing the above until you reach the correct top tension. The reverse of this would be loose stitches on top which means the bobbin needs to have the tension screw increased, little at a time, about 1/8 ". Sew and repeat until the stitches are equal.

Sep 05, 2010 | Sewing Machines

1 Answer

The top stitch on my machine doesn't seem like it is correct. It seems like it isn't going deep enough into the fabric and hooking well w/ the bottom thread. It almost looks like one long stitch all the...


Hi. I think I know what you mean--the top thread looks like it's just laying across the fabric, right? This is because either the top tension is too tight or the bobbin tension is too loose. (Either condition will look the same.) Try it with a different color thread in the bobbin, you can easily see the bobbin thread cross the top thread on top of your fabric. Here's what to do:
  1. since you should hardly ever need to adjust the bobbin thread, we'll start with the top thread.
  2. Make sure you thread the machine with the pressure foot UP (opens the tension disks) but adjust the tension with the pressure foot DOWN (closes them so they will adjust). Use a size 12 or 14 needle and good-quality thread (it does make a huge difference!)
  3. With different color thread on top and in the bobbin, stitch an inch or so and check the stitch.
  4. Slightly loosen the top tension (move the dial so the numbers go lower). Don't move it a lot, just a little bit.
  5. Stitch again and check. Repeat this process, stitching, checking, and gradually adjusting the tension dial until you don't see any of the bobbin thread on the top (or very, very little) and don't see any of the top thread on the underside (or very, very little).
  6. IF this doesn't get the balance adjusted, then you'll have to play with the bobbin tension. (But generally, once this is set, you shouldn't have to mess with it again.)
  7. There is a tiny screw on the bobbin carrier that tightens or loosens a very small metal strip (where the thread exits the carrier). To tighten the bobbin tension, screw this just a tiny bit to the right. (Turn it to the right to loosen the screw, to the left to tighten it.) Again, just make a small adjustment each time and recheck your stitches.
Few things about sewing are more frustrating than stitches that aren't balanced!

Sure hope this helps!


Robbie

Apr 22, 2010 | Brother XR7700

1 Answer

Pfaff varimatic 6091 sew a rag quilt with jean and flannel,I can't get my tension right it seems to be funny on the bottom stitch,where shoulf the top tension be set at 4 1/2 ,when do I adjust the bobbin...


Hi! The bobbin tension rarely needs to be adjusted. First, make sure you're using the appropriate size needle and thread for your fabric (I'd probably use either a 'denim' needle or a universal size 14) and also that the upper thread and bobbin are threaded absolutely correctly. These can throw off the tension! Also, take the time to clean out the bobbin area. That can throw your stitch off also.

If the stitch on the bottom is loose, so that you see the top threads, then the top tension is too loose. If the top stitch is too loose and you see the bobbin threads on top, then the top tension is too tight.

It helps to thread the machine with different color thread on top and in the bobbin, and then stitch an inch or so on the same type of fabric as you're using in your quilt. Check the stitch. If you need to adjust the top tension, make sure the pressure foot is down! Adjust a little, stitch a few inches, and check again. Repeat until you don't see any (or very little) bobbin thread on the top or top thread on the bottom.

If you go through all these steps, and the bobbin thread is still loose (and you've tightened up the top tension), then there is a tiny little screw on the side of the bobbin case that you can use to adjust the bobbin tension. Turn the screw just a little bit (less than a quarter turn), stitch, check, etc. Once the bobbin tension is set, you shouldn't ever have to change it.

Let me know if this helps, ok?

Happy sewing!




Feb 10, 2010 | PfaFF Sewing Machines

3 Answers

Stitiching too loose


The top tension pulls the upper thread up to the top of the fabric. The bobbin tension pulls the lower thread to the bottom of the fabric.

An even stitch is a tug of war between the two.

If it looks good on the to and the bottom looks loopy, the bottom is dominating and the upper tension needs to be increased to pull the knots up.

If the thread on the top looks like a straight line, it is too tight on the top or too loose on the bottom.

Unless the bobbin case tension has been adjusted, the problem is usually on the top.

Jun 18, 2009 | Brother CS-100-T Computerized Sewing...

3 Answers

BOTTOM STITCH IS ALWAYS LOOSE


If the top stitch is loose, then you need to tighten the bobbin tension: if the bottom stitch is loose, tighten the top tension. Hope this helps. It could also be the size needle and thread you are using for a particular fabric. Different fabrics require different notions.

Mar 13, 2008 | Sewing Machines

1 Answer

Borther ce4000


Try taking a small screw driver and tighten the little screw on the bobbin cover, just a little at a time, then try your machine again. If still too loose move it a little more. If the top thread pulls you have it too tight, back the screw off a little. This should help !

Oct 21, 2007 | Sewing Machines

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