Question about Singer Sewing Machines

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How hat do to adjust the tension on my Singer 3201 - the under thread is real loose

When I sew a seam, it looks fine on the top. Then when I look at the under stitching, it is real loose and messy.

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  • Contributor
  • 23 Answers

If the bottom stitches are messy it usually means the top thread isn't threaded correctly.

Posted on Jul 20, 2014

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Posted on Jan 02, 2017

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  • 2 Answers

SOURCE: thread on bottom, bobbin thread loose

Sounds as though you've misthreaded the upper tension. The best way to verify this would be to thread your machine, lower the presser foot on to the material. Now try pulling the thread through the needle. (Assuming your upper tension dial is set to a number greater than one). You should feel resistance. Should you not feel resistance, rethread your upper tension.

Posted on Feb 01, 2008

  • 323 Answers

SOURCE: unable to adjust tension,

Sounds like the bobbin thread is not inside the tension on the bobbin case. This normally happens when the bobbin is upside down. Insert the bobbin and pull on the thread.The bobbin should turn counter clockwise.
sewman7

Posted on Jul 18, 2008

bargainbox
  • 1388 Answers

SOURCE: singer 237 stitches loose on bottom of fabric

Please TRY the solution BEFORE giving your considered rating.
Specific detail on bobbin case adjustment (with picture) near halfway down reply, the remainder will help you achieve a balance of top and bottom tensions.

Ensure that all is clean and free of lint and jams, this is the most likely cause....now for tension troubleshooting .......

This solution is for tension problems...if you cannot form any sort of stitch, the issue is quite different, so please let me know if you need a different problem solved.....

It is quite long, but just work through each section in order.

The "knotting up" can reveal a lot. If you have loose threads on one side or the other, the tension on the opposite side will be the culprit.

QUICK SUMMARY FIRST:
Ensure sharp new needle,
Thread guides and Bobbin are Clean & Clear of lint
Set Top Tesion to 4 ....then....
Balance Bobbin to suit.

TOP THREAD TENSION:
If the looping threads are on the underside as you sew, it is the top tension. Top tension ought to be between 4 & 6 (this variation to allow for the different weights of fabric in your projects).

IS YOUR NEEDLE SHARP ?
If you are using a needle that has seen quite a deal of work, or you suspect it may be blunt, change it for a new one !

TOP TENSION & GUIDES:
Make sure that when you thread the machine the presser foot is up so the thread goes between the discs and not to one side, top tension between 4 and 6, and that you have threaded through all the guides, including the last one, usually on the needle arm, just above the needle clamp.

It may be there is lint trapped between the discs, this will keep them slightly apart and reduce the actual tension, sometimes dramatically.

If tensions appear correct, and the thread is definitely in the channel between the discs, but still too loose and looping, try raising presser foot and remove your thread.

Now, with a 2" (50mm) wide strip piece of fabric 8 - 10" (20 - 25cm) moistened with methylated or denatured spirit, gently insert the fabric strip and clean between the discs with a see saw / to and fro action.

In the worst cases, gentle use of a needle to pick & remove the jam may be necessary, but be very gentle and make sure the tension is set at Zero and the presser foot is raised, (to disengage tension plates).... do not gouge or score the plates, they need a polished surface to work correctly.

BOBBIN TENSION:
Far less common, but if the loose threads are on the top, it is bobbin tension that is loose, it too may have lint in the spring and be giving a "false" tension.

I would not recommend fiddling with bobbin tension without good reason, it may end up with missing small screws and spring pieces, however, you can take the needle plate off to clean
the hook race area (where bobbin case sits)

...this is just good housekeeping, my wife does this every time she replaces the bobbin....

just take it out and clean the bobbin case and the fixed metal hook race with a small brush to remove lint. If there is a significant amount of lint, use a vacuum and small brush to get the worst.

Then wipe all this area with a cloth or cotton bud (Q tip) moistened (not soaked) with methylated spirit, especially if there appears to be fine dirty deposits....oil and lint combine to conspire against you.

If it seems likely that you ......really ....do .....actually .....need .....to adjust the bobbin case, first check there is no lint trapped in the metal spring where the thread is tensioned.

TOP LOADER:
Drop-in Bobbin case will look similar to this image with the tension screw in the middle of the metalwork....

4c76dc1.jpg ...the other screw at one end is holding it all together, so beware....it is not a tragedy to undo the whole lot and clean it, but very gingerly and lay the bits out in sequence and orientation, or you risk tearing your hair out !

FRONT LOADER:
....this is a bobbin case from a front loading machine and works in a very similar fashion to the top loader with drop in bobbin, again, if you dismantle it, take care so you can put it all
back properly.
165ca5c.jpg FINISHING UP
GETTING THE BALANCE RIGHT:
When you are certain there's no trapped lint in top tension or bobbin, set the top tension to 4 and the bobbin tension to a point where you just begin to feel resistance.

Try using good quality thread of contrasting colours so you can more easily spot the changes.

Set your zigzag to one width less than maximum (eg. 5 of 6 ...or... 4 of 5 etc) and sew a sample for a few inches and check the result.... adjust the bobbin tension screw very little at
a time, perhaps 1/16 of a turn.

You may find you are playing with this balance for some little while and if you are putting the needleplate on and off each time begin to think it cannot be correct to do this.....BUT....it is,
and eventually, you do get a "feel" for the correct tension and then it happens quite quickly.....as a user you won't be doing it very often unless there is lint built up (or are there small hands at work around the house !?!?!)

OTHER ISSUES:
If you live near the ocean as we do, salt air can play havoc with metalwork inside and out, so to help minimise this, keep a few small packets of dessicant (silica gel) in your machine
case....no case ? then make some sort of cover !

Same applies in any damp or humid environment, keep your machine dry and dust free.

Budget for a proper full service every couple of years (more often if heavily used) and if you don't use your machine for a few years, be aware that old oil will dry out and combining with
dust and form a "clag" like glue (another reason for some sort of cover, even a teatowel !)

FINALLY, A WORD ON THREAD:
If it is worth spending the time, energy and money on making something that you would like to give lasting enjoyment......use quality thread, .......it may seem to cost a little more at the
time, but the results, ease of use and added longevity will be worth the extra, and as a bonus, your tension troubles may be fewer and further between, because there is a more consistent diameter with good thread, and less compensating to be done by your tension plates and less thread breaks

bargainbox.com.au

Posted on Sep 02, 2009

  • 234 Answers

SOURCE: my bobbin straight stitch is wavy and loose and

If you have any spare bobbin holders, I suggest you exchange it with the troublesome one and see if you get better results, Some times the bobbin /holder gets worn and no adjustment will correct it, therefore, you need to replace it. Or, could be that the timing (syncronization) of the upper and lower movements have changed and need to be realigned (not all models allow you to do this realignment syncronizing). Goodluck, Macgivor

Posted on Jan 31, 2010

chrismyers67
  • 53 Answers

SOURCE: top thread keeps breaking

This sounds like a backwards needle. Take out the needle and when you re-insert it back in, make sure that put the flat side to the back.

c384264.jpg

Posted on Jun 07, 2010

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2 Answers

NO MATTER HOW I ADJUST THE THREAD TENSION ON MY SINGER 2950, IT CONTINUES TO SEW LOOSE BOTTOM STITCHES. THE TOP STITCH IS FINE, I HAVE RETHREADED THE MACHINE AND THE PROBLEM PERSISTS. ANY SUGGESTIONS?


someplace I read hat on some of these newer machines we need to hold the bobbin so it gets into the tension slot , which we can not see . while bringing the bobbin thread up thru the needle hole . I did try it and it is simple to do . just leave the bobbin cover off till you get ready to sew .

Aug 31, 2015 | Singer Sewing Machines

1 Answer

The stiches at the botton are loose,it sound good at sewing but somehow it still a real mess ,no matter how i tried all different adjustment in the control bottons..


Looping on the underside is an indication that your top thread is not under tension. So you need to check again on the top threading up and make sure the thread is seated into the tension discs. Always thread up with the pressure foot raised to open up the tension device. Make sure the thread goes into the tension device, to test, lower the pressure foot and pull on the thread downwards - it should feel firm and resist pulling. If you can't get any tension onto the top thread, then the tension device may be broken.

You should not need to adjust the bottom tension at all.

If a machine is set up correctly the top tension should only need finessing by half a number at the most.

Sep 24, 2011 | Singer 5050 Mechanical Sewing Machine

1 Answer

I have a singer 7258 that I can not get the tension to loosen up on. The top stitch is straight across and adjusting dial doesn't help.


Hello

Adjust the tension

Load your sewing machine with one color on top, threaded through the needle. Load the second color thread into the bobbin and thread.


Fold the scrap fabric in half, and sew a straight stitch at least 2 inches long. Look closely at the seam. If you see loops of the bottom color thread on top of the fabric, proceed to Step 3. If you see loops of the top color thread on the bottom of the fabric, proceed to step 4.


Loosen the top tension. Since the top tension is so tight, it is pulling the bottom thread up through the fabric. Loosen the top tension by turning the numbered knob on the front of the sewing machine counterclockwise by one number.


Tighten the top tension. Since the top tension is too loose, the bottom thread is pulling the top thread down through the fabric. Tighten the top tension by turning the numbered knob on the front of the sewing machine clockwise by one number.


Sew a straight stitch 3 inches in length. Check the stitching. It is perfect if the threads meet in the middle, and you can only see the top thread on top and the bottom thread on bottom. If it still needs adjusting, go back to step 2 to repeat the needed steps.


Using two different colored threads makes it easier for you to see which thread is being pulled.

Always use proper precautions when working with electrical machines.

Aug 01, 2011 | Singer Sewing Machines

1 Answer

Looking for sewing machine manual for singer sewing machine model 6218. The bottom bobbin tension is so loose that it forms many loops under the fabric.


I went to the singer website & typed the number in 6218 & it came up with nothing, is that the correct model number?
the tension problem try adjusting the top thread tension to 3-5, & see if that helps the loose tension

Oct 21, 2010 | Singer Sewing Machines

1 Answer

Top thread bunching under fabric when sewing


tension could be too loose. start with bobbin tension- should allow thread to pass with SLIGHT resistance. then adjust top tension at about 2-3 to start.

Jun 01, 2010 | Singer 8280 Mechanical Sewing Machine

1 Answer

Tension is too tight on my sewing machine,,need to know the settings to go with which seam. singer 724 graduate


Hi. As a rule of thumb, once the tension is balanced on your machine, it shouldn't need adjusting. It's not something you adjust for each different type of seam or fabric (again, rule of thumb!). (Certain kinds of sewing, like free motion embroidery or when you use rayon thread, require particular tension adjustments, but for ordinary sewing, you shouldn't have to mess with the tension that often.
If the top tension is too tight, your top thread will be loose and basically just sitting on top of the fabric. You need to loosen it up so that the bobbin thread can pull the top thread down into the fabric.
Let me know if this helps, ok? I'm going to post a tip on adjusting tension so please check that out.
Happy Sewing!

Robbie

Mar 10, 2010 | Singer Sewing Machines

1 Answer

Singer 301a...sews on top of fabric nicely...bottom is just loose loops of thread...it's like the bobbin is not sewing...I put 2 different colors in to see...top is perfect...on bottom of fabric I see the...


This is a tension adjustment problem. It's good to use two different colors of thread, like you did. From your description, the top thread (needle thread) tension needs to be tighter. As you tighten the tension of the top thread, you'll see that the top thread pulls the bobbin thread up into the fabric so it's no longer laying loose on the bottom of the fabric.

You'll need to have the pressure foot down when you tighten the tension. Tighten it a little, sew a practice seam, check to see what the stitch looks like. Tighten it a little more, sew, check, etc etc--until both top and bottom look the same--you shouldn't see much (if any) of the bobbin thread color on top of the fabric or the top thread color on the underside.

Let me know how this works for you, ok?


Robbie

Jan 25, 2010 | Singer Sewing Machines

1 Answer

Sewing a straight seam will be going well until the bottom thread suddenly becomes very loose and loopy. The top thread is completely fine. The only clue that this is happening is the spool "jumping"...


Hello,
Here are some solutions to try.

* Increase the upper thread tension on your machine. It may be too loose.

* Decrease your bobbin tension if your sewing machine allows you to adjust it. Consult your manual.

* Reinsert your bobbin. It may be inserted incorrectly.

* Change your thread. If your upper thread and bobbin threads are different types, try using the same thread for both.

Although you did this, it won't hurt to re-check. Make sure bobbin is threaded correctly.

Hope this helps.

Sep 21, 2009 | Singer 1120 Mechanical Sewing Machine

2 Answers

Can't get thread tension right on my Euro-Pro 7130


the top seam is actually the bobbin thread. dots on the underside means that the top tension is too tight. you may have a piece of thread or something gummy caught between the upper tension disks.

Jun 08, 2009 | Euro-Pro Deluxe 7130 Mechanical Sewing...

1 Answer

The threads are not tight on my serger


Here is an easy way to get your thread adjusted. Rethread the machine using four different colors. Then sew and for example the "yellow" thread is loose on the fabric, you know to adjust the tension with the yellow thread. Also a good starting place on your dials is 4-3-2-1 from left to right. Start with the tension set there and then adjust as needed.

Dec 20, 2008 | Singer 5050 Mechanical Sewing Machine

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