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Singer 7028 The thread bunches up under material when sewing

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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kimbo322
  • 10 Answers

SOURCE: thread bunches under the material

There ARE still parts for your 7570 - amazing how rumors can get around!

Could be any number of things - from something as simple as a thread caught somewhere in the upper/lower tensions to the tension assembly to timing to any number of other things? You may have already tried some of these - hope this helps:

  1. Try "flossing" your upper tension - this is nothing more than running a heavyweight thread (such as upholstery or 12 weight thread) through the threading paths. Grasp the thread at the beginning of the threading path and the end coming through the needle and "FLOSS" (back and forth - just like you do your teeth). This will usually pull through anything that is gently stuck.
  2. Pretty much the same thing for the bobbin thread - if you're comfortable doing so, loosen the tension screw on the side of the bobbin case to make sure there aren't any little bits of thread fuzz stuck under the tension plate on the side of the bobbin case.
  3. Also remove the needle plate to allow you to better see the upper part of the bobbin system - if there are any bits of thread, etc. stuck in there, you may be able to see them and pull out with tweezers (turn machine off before you do this so the tweezers don't accidentally come into contact with anything).

If this doesn't work, you'll need to have a sewing machine tech look at it (I would recommend a Pfaff-trained tech as they're going to be the most familiar with your machine). The 2140/2144/2170 use most of the same parts - even the new CV still uses some of the same parts.

Good Luck,
Kim

Posted on May 04, 2008

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bargainbox
  • 1388 Answers

SOURCE: on underside of material thread is loose and not catching

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


Posted on Sep 02, 2009

  • 40 Answers

SOURCE: 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.

Posted on Jun 01, 2010

SOURCE: the thread bunches up under the material when i

first start with the needle & see if it's bent-roll the needle on a flat surface & see if it roll correctly
when a needle is blunt it makes a popping sound when it goes thru the fabric
check the bobbin to see if it's warped-I have had some that were
check to see if there is lint or loose thread in the bobbin case area
rethread the machine to make sure the upper thread is not catching on anything
sometimes the thread can come off the thread take up lever
& sometimes it can get caught on the spool pin & also on the notch that's on the thread spool it's self---I've had this happen before
if you sew alot-good maintenance practice is to clean the bobbin case area at least once a week-if you don't sew alot-once a month & also under the needle plate
when cleaning under the needle plate-make sure you do not damage the top of the screws when you remove them to clean under the needle plate & because if the top of screws get damaged they can pull the fabric when the fabric goes over them
check also to make sure your top tension is correct

Posted on Sep 02, 2010

  • 3 Answers

SOURCE: when i sew the bobbin thread bunches up. what to do?

remove the thread and bobbin.
take out your manual and follow the exact instructions for threading and inserting bobbin.

If this does not help check the tension on the top(the number should be about mid way).
If it is too low it will bunch up on the bottom.

Posted on Nov 17, 2011

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try a different needle
here's a link to a free manual from singer
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Your top threading is not right, double check your manual and make sure your bobbin thread is coming out the right way

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Clean away all the thread.

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Hello,
Here are some solutions to try.

* Re-thread your machine
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* Raise your feed dogs If your machine has this feature.

* When you start to sew a seam, hold the upper and bobbin thread tails back and out of the way as you sew your first couple of stitches. This will keep them from getting caught in your machine.

I hope this helps.

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