Question about Singer 1507

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Loose bottom stitches on Singer 1507

The top stitches seem ok, the bottom stitches at very loose. Adjusted the bobbin tension to high, no help.

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  • Singer Master
  • 7,365 Answers

Top tension must be adjusted to fix loose stitches of bottom stitches
adust the top tension one letter or number higher and sew on a scrap
piece of fabric till stitches look correct,, here is a free manual
http://www.singerco.com/uploads/download/36952a1312a6d8436174ef874f3662471a946b64.pdf

Posted on Jan 07, 2013

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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

Mimito7
  • 128 Answers

SOURCE: loose stitches on bottom

FYI.. Loops on the bottom, problem is on the top..
Loops on the top, broblem is with the bobbin.

Posted on Apr 19, 2009

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

  • 980 Answers

SOURCE: The bottom stitch on my Singer model 360 is loose,

You are adjusting the bobbin the wrong way, first make sure the top tension is about 4 or 5, slacken the bobbin tension off about a quarter of a turn at a time until you can just pul;l the thread through with slight resistence

Posted on Oct 25, 2009

  • 1116 Answers

SOURCE: The bobbin thread is sewing loose stitches and

Always have the presser foot up when you thead any sewing machine.

Make sure the flat side of the needle shaft is facing to the back of the machine.

Don't do anything to the bobbin tension. Set the top thread tension to what is recommended by the mfg.

Make sure the thread from the bobbin is feeding from the bobbin in the correct direction and through the correct guides.

After inserting the bobbin and threading the machine, lower the needle (hold on to the thread tail) and then raise it by turning the hand wheel by hand to pull up the bobbin thread.

Gently pull the two threads under the presser foot and to the back of the sewing machine before you begin to sew.

Posted on Feb 19, 2010

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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.

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1 Answer

Top stich perfict but bottom stich too loose on vivo singer machine 1004


Your bobbin tension needs adjusting, and although it is not hard to do and doesn't require that you take the machine apart, you MUST do it systematically. If you don't, you'll make things worse.

First, download the user's manual from the Singer site if you don't have one. On page 20, you'll see a discussion regarding tensions, and what improper tension looks like. Tension is a balance between the top and bobbin.

Then, using scrap fabric, set your top tension on Auto and make sure your needle is all the way up in the clamp. Run a line of straight stitches, and next to it, run a line of zigzag stitches, maybe four inches, and examine it. The illustration on that page will show you what your straight stitches SHOULD look like. If your zigzag stitches show one side that looks like "chicken tracks" but the other side looks like it should, the chicken tracks side is too tight. In your case, if the bobbin is too loose, the top will look like chicken tracks. It helps a lot to use two different thread colors, as well as a third for the fabric.

To adjust the bobbin tension, you will need a tiny straight blade screwdriver. If you have an indication that the bobbin side stitches are too loose, take the bobbin case out of the machine and locate two screws on the side. One is a Phillips--don't touch it. The one on the left of the Phillips is a straight-slot screw--that's the one you want. The saying is "lefty loosey, righty tighty." If your test indicates the bobbin tension is indeed too loose (which can happen over time), you need to tighten it by turning the screw 1/4 (ONLY) turn to the right (righty-tighty). Test again. You should see at least some improvement to indicate you're on the right track, and repeat--turning ONLY 1/4 turn--until your top and bottom tension are balanced. Don't forget to also test with a zigzag; I have adjusted bobbin tensions in the past that looked OK on the straight stitch, but the zigzag indicated I wasn't quite there yet.

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Singer 8770 beeps twice then stops stitching


do you have a manual?
try a new needle
adjust the top tension
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1 Answer

The bottom stitch is very loose. I've tried tightening and loosening the screw and the problem remains...HELP!


The bottom stitch is affected by the TOP thread tension :) First go back and make sure your bobbin tension is correct since you adjusted it. It should drop slightly when held suspended by danging it by the thread. If it reels out to the floor it is too loose. If it doesn't drop at all it is too tight.

Now that you have that adjusted look at your top tension. If it is loopy on the bottom side of the stitch the TOP tension is too loose. Increase the top tension.

Now take some scrap material and set machine to a wide zig zag, medium length stitch and sew a bit. Compare the top and the bottom sides of the stitch. They should look identical. Remember the TOP side effects the bottom and the BOTTOM tension effects the top side. Adjust accordingly until they look identical with no loose threads or loops and no puckering (puckering means it's too tight).

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I have a 1970's? singer and the top stitch is ok but the bottom stitch is very loose then binds up I have tried putting another bobbin in but nothing seems to work. Thank you


Check the threading and tension on the top thread. It is the one that affects the stitch on the bottom. It may be hung up somewhere if it's not threaded correctly or the tension might be too tight. Also double check the size of your needle and make sure it is correct for the type of fabric. Most likely it is the tension. Double check the tension by sewing a wide zig zag stitch and examining the top and under side to see if they look identical and not puckered or too loose.

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My top stich is tight,but bottom is loose of my singer sewing machine.


Think in opposites... the top stitch is formed by the bottom thread tension and the bottom of the stitch by the top. So either the bobbin thread is too tight or the top thread is too loose. Check the bobbin thread first as that is the one most overlook. It should come out of the bobbin without having to yank it hard but it should have a little resistance.

Mar 22, 2011 | SINGER 7470 Sewing Machine

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!




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1 Answer

Loose stitches on bottom


FYI.. Loops on the bottom, problem is on the top..
Loops on the top, broblem is with the bobbin.

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1 Answer

Singer 221-1 stitching is good on bottom but not on top


pucker is caused by too loose or, to tight adjustment of: the thread tensioners both the bobbin tensioner and, the needle tensioner need to be adjusted: to adjust the needle tensioner turn the side knob clockwise is tighter counterclockwise loosens; the bobbin tensioner is a tiny screw on the bobbin holder adjust both tensioners until your stich loops' both top and, bottom are tight but, the machine does not break the thread

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