Question about Singer 8280 Mechanical Sewing Machine

2 Answers

Tension featherwight 11, The tension on machine is producing stitches looped and on top of material. working well for majority of sewing then went wrong. on no 4 setting and other settings do not make any difference

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2 Answers

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  • Singer Master
  • 1,388 Answers

Bobbin Tension is too loose......probably thread/lint trapped in the spring tension of the bobbin case.
Check this tutorial for all things tension....
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....

tension - 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.
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 Aug 02, 2009

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  • Master
  • 4,088 Answers

Look for a broken tension spring around the bobbin area.

Posted on Aug 02, 2009

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2 Answers

What am I doing wrong when the stitching on top of the material is ok and straight and the backside is knotting?


wrong bobbin tension , but amazingly its actually easier to adjust the top threads tension to compensate for it , use your tension knob to slowly adjust , try an inch , slowly adjust try an inch , and so on to get a top and bottom thread tension to match , this will need to be adjusted for each major change in fabric (aka , knits to woven )

Aug 17, 2016 | Sewing Machines

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How do I fix the looping under the material when I sew?


the looping on the bottom usually is a tension problem, the top & bottom tension are unequal usually fixed by adjusting the top tension.
some people that I've talked with have had success with changing to a different size needle ( depends what type of thread is being used).
when the machine is threaded the foot needs to be up ( this releases tension on the thread), when the foot is lowered it the tension is set on the thread. if the material being sewed is too thick it raises the foot too high & releases tension on the thread ( the material has to be really thick to do this).
if there a piece of thread or lint in or around the tensioner or bobbin area it could cause trouble.
other wise if you've tried everything you can think of, take it back th the store & have them try it & tell you what is wrong.

also this machine has bad reviews (i'll provide a link so you can read them), people having the same problems as you are. the newer singers just don't seem to be the same quality tha the older ones were.
all bad reviews
http://www.amazon.com/Singer-5400-60-stitch-Sewing-Machine/product-reviews/B007ZG9DTQ/ref=cm_cr_pr_btm_link_1?ie=UTF8&showViewpoints=0&sortBy=byRankDescending
mixed reviews
http://reviews.walmart.com/1336/20573406/singer-5400-sew-mate-60-stitch-sewing-machine-5400-reviews/reviews.htm

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My tension is very loose when I do freemotion quilting. It is fine on the top, but the bottom gets tangled. It sews fine when I have the walking foot on, but when I put on the different plate for...


Hi Leann: Think about how a sewing machine works. Now think about what kind of difference an 1/8th of an inch distance would make. Yes. You will need to adjust your top tension when you do free motion work. Keep in mind that plate is not just stopping your feed dogs from working... it's holding your materials that far away from the bed of the machine... so when the thread makes a loop and tightens for the stitch it has the extra 1/8th of an inch to make up for... if the tension isn't right... you got loops. There are no "specific" settings for tensions... you learn by doing you stitch a few stitches on like materials and tighten until you see a good stitch.

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1 Answer

Sewing machine not working in reverse


try a new needle
try a different thread top and bobbin
try adjusting the top thread tension one number or letter at a time
higher sewing on a scrap piece of paper till the stitches look
normal
make sure the top thread does not come off the thread take up lever

Jan 11, 2013 | Sewing Machines

1 Answer

The cotton on my bernina 801 keeps jamming


Loops on bottom indicate a top thread tension problem.

Make sure needle is the correct size and not bent or broken
Make sure it is threaded properly with the lever UP.

Do a test stitch.

If it still loops below... tighten the top tension and do another test stitch... keep doing this until the stitch is balanced.

BTW... always grasp and hold both threads when starting a seam.

Jul 30, 2012 | Sewing Machines

1 Answer

The thread on the top side of my material starts looping after 4-5 stitches. I've tried every number of thread tension, and even on 0 it loops on the right side of the material, not on the back.


Check the tension on your bobbin thread. When you hold it by the thread and let it dangle does it just drop down without any resistance at all? If so then you need to tighten it a bit. If the bobbin thread is too loose it can not pull the top thread down enough thus puts the loops on the top side of the stitch.

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The threads under the material being stitched forms loops - the thread can be easily slipped out and the work undone.


top thread tension is too loose try tightening the top thread tension until the loops disappear.

Good Luck!
Chris
glfi.com

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Hi, check that the thread tension knob makes only one rotation from 0 to 9 and stops at each ends, see that it moves in and out as you increase or decrease the tention, see that the small tension wire to the left of the knob is still in place, in any of these fail you need to replace/repair that assembly.

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Looping of stitching on the reverse of the material.


put the tension to about 4 and make sure it is threaded in a N shape and remember the thread catcher above the needle from the bobbin to left down round tension up to arm down the side.

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