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Janome 4618le my bobbin thread side is all loopy and loose no matter what setting I put the tension on

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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bargainbox
  • 1388 Answers

SOURCE: bobbin tension

This is an issue of your upper thread tension, so take a look at this generic tension solution

If you are in a pickle with your bobbin case, check top tension and bobbin case are free of lint, reset the top tension to 4, and adjust the bobbin tension to suit......some more detail on how to do that, is here

Bargain Box

Posted on Jan 30, 2008

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  • 97 Answers

SOURCE: thread or bobbin tension

Thread tension. Beware of adjusting the bobbin screw. Pfaffs maintain their tensions just fine without adjusting the bobbin tension, unless you're using some crazy thick or fine thread. If you must change your bobbin tension, you would be well-advised to buy an extra bobbin case, because re-calibrating your tensions after changing them can be less than fun.

Increase your top tension, and your looping should cease. I normally keep my tension around 4.5. Also make sure you're using a good quality thread, and that there's nothing in the upper tension assemblies. Sometimes a tiny piece of debris can keep the top tension from applying enough tension, so turning the machine off and blowing some canned air in there can help as well.

Good luck,

-R

Posted on Mar 11, 2009

  • 1 Answer

SOURCE: janome straight stitch loose

I don't know if this is the right answer for any of you, but thought I'd put my 2 cents worth in. Often this can be the bobbin in backwards. It needs to unwind a certain way depending on the machine. I've heard a phrase for this: Mind your p's and q's which means some wind off to the right like a q, others to the left like a p. Mine has to unwind one way then be slipped backwards into a little slot or it does that loose bottom thread looping and bunching someone here mentioned. It seems everytime I get that problem I rethread the top thread 100 times before it clicks again and I remember it could be the bobbin thread. Either your manual will tell you the correct way, or you could experiment and try one or the other. Once you figure out whether you're a p or a q, mark it on your machien somewhere to remind yourself.

Good Luck and Happy Sewing!

Posted on Apr 04, 2009

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: janome 9500 bobbin tension too tight can I adjust it

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 !
 
 

www.bargainbox.com.au 

Posted on May 01, 2009

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1 Answer

Why does the bottom tread come out loose and loopy


First, check the stitching to verify that it is in fact the bobbin thread that is loose & loopy. Usually, loopy thread under the fabric is the upper thread--which, if that is the case, is an indication it is either threaded incorrectly or the upper tension is too loose.

Make sure you are using a brand-new needle.
Always RAISE the presser foot and then thread the upper thread making sure that every guide and the correct path is followed.

Set the upper tension to the midway point between high & low number and re-test the stitching. Re-adjust as needed. The tension is correct when both upper and bobbin threads meet in the middle of the fabric.

Understanding Thread Tension Threads

If it is in fact the bobbin thread causing looping, it could be that the bobbin case is not threaded properly or the tension is way off.

Liz Kettle adjusting your bobbin case tension 1 wmv

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Apr 11, 2016 | Sewing Machines

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Model 525B. Why is bottom stitch loopy and the hand wheel and needle jam?


try a new needle

try adjusting the top thread tension to see if that helps the bottom loopy stitch

Jan 10, 2016 | Janome Sewing Machines

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How to fix bobbin thread on computered memorycraft 9000 sewing machine ?


1)Check that your bobbin does not have a nick in it where the thread can catch and won't feed smoothly.2) make sure the upper and bobbin threads are the same.3) pull out the bobbin case and chect to see if there is a clump of lint.4) make sure the feed dogs are moving the fabric through smoothly,some fabrics can get caught on the dogs and make the bottom thread get loopy.5) check your needle,if it's bent or has a bad tip,it can mess up the stitch.

Aug 15, 2014 | Janome Memory Craft 9000 Computerized...

1 Answer

Janome 5900 sewing backwards!


Most likely, the bobbin thread is not in the bobbin tension. Rethread the bobbin and try again.

Loops on top of the fabric almost always mean too little tension on the bobbin thread; loops on the underside almost always mean too little tension on the top thread. Just backwards of most people's first guess. See http://www.picturetrail.com/sfx/album/view/22521551

Jan 18, 2014 | Janome Sewing Machines

1 Answer

Brother cs-6000 will not sew, the top thread go through and tangles on back, and the bobbin thread is a straight line and can be easily pulled out, please help, trying to make kids school clothes


Hi:

Ok... so try to remember that loopy stuff on top means the bobbin tension is too loose (or the top tension is too tight...)

Loopy stuff on bottom, means the top tension is too loose. (or it's not threaded right)

Now. Get some scrap of the same material. Loosen that bobbin back to where it was. RETHREAD the top, with the foot in the UP position.

Place your scrap under the foot, and sew. still have problem? clip your threads and try again only this time hold the top and bottom threads off to the side as you begin to sew. How did that do?

Adjust the top tension to the point where you start seeing the bobbin thread come up in loops to the top... then back off until the disappear.

Now... be sure you have the correct thread and needle for your fabric. A lot of problem are caused by not having the proper needle and thread.

Jul 09, 2012 | Brother CS-6000

1 Answer

The thread underneath when sewing is too loosed


Usually thread too loose on the bottom is caused by the upper tension being too loose. The top and bottom tensions work together with the top thread making the underside of the stitch seem too taunt or too loose and the bobbin thread causing the top side of the stitch to be loopy or too tight. Select a large zig zag stick and sew a couple of inches. Then examine the stitch. It should look identical on both sides. Look to see which side is drawn too tight, the zig zag being smaller on that side with threads from the bottom threads pulled through. Then adjust the two tensions so that they make a uniform, identical stitch.

Also, when the bobbin tension is right you can hold the bobbin dangling by the thread and it won't spool out to the floor but will let loose a bit with a slight flick of the wrist. Too loose it will just spool out. Too tight and it won't drop at all. When you get that set right then do the above zig zag test to see where the top tension should be set.

Mar 02, 2011 | Sewing Machines

1 Answer

Bunches of threads on the bottom


You didn't give the brand, but if it's any of the older, non computerized machines, your problem is most likley in the tensions.
Loopies (tangles or nests of thread) on the bottom means upper tension too loose (or bobbin too tight).
Let's do the bobbin first...once it is set...99.9% of loopies on the underside are a problem with upper tension.
This is for bobbins that load on the front/side of the machine.. Take out the bobbin case...check the area (hook/race area) that the bobbin goes into for lint, tiny thread pieces, etc.). Now, most of this type of bobbin loads into the case with the thread going counter clockwise (when you are looking at the open side of the case), insert the bobbin in the case, and pull it through the hole/slott in the side of the bobbin case. To test for proper tension:
Lay the bobbin case in the palm of one hand, pull on the thread coming off the bobbin case. The bobbin will gently lift off your hand & if you wiggle the thread, the bobbin case should slowly drop about an inch at a time. If it's too tight, loosen the Larger (closest to where the thread comes out) screw on the side of the bobbin case about 1/16 of a turn...tiny bit...retest. Once that is done try a test stitchout. Remember to hold onto the bobbin & top thread for first few stitches.

If you still get loopies on the bottom...tighten the upper tension...it should be set between 4-5 for regular sewing.
Make sure the needle is in properly.

For a drop in bobbin...adjusting that tension is harder. You take the face plate (needle plate, the plate covering the sewing area of the machine) off and remove the bobbin case...First...look at the case in the machine...there is a little lip sticking out, usually at the bottom right corner of the open area (closest to you)...this is where you need to have the little lip when you replace the bobbin case.
Remove the case...check under it and inside the machine for lint/dust/threads & using a small paint brush (I use a childs tooth brush sometimes), clean the lint out. Now check the bobbin case for lint, especially where the thread fits..look at the inside of the case, you will see a little flat metal thing with a slott in it...make sure no lint in that slott. I use a pin to remove lint from there. Reinsert the bobbin case, rethread it all, (bobbin goes counterclockwise). Put the faceplate back on & test the stitches...still loopies with the upper set to between 4-5? Then you will remove the faceplate, remove the bobbin case & loosen the screw on the outside about 1/16 of a turn (these are usually covered in a colored coating) and retest.
I know that most home machine makers say not to adjust the bobbin..but that was back when you had one size thread...now we have many, many sizes and types of thread, so adjusting the bobbin may be needed sometimes.
Rule of thumb is:
loopies on underside...tighten upper tension
loopies on top...loosen upper tension.
But, like I said...with all the new threads..sometimes you have to adjust that bobbin.

May 12, 2010 | Sewing Machines

1 Answer

Tension issues with the bobbn area


No, I have not had a consistent problem with this.

What looks like a bobbin issue could be a threading issue.

If a sewing machine is threaded with the presser foot down, the tension control does not capture the thread as it should. The top thread then cannot form a proper stitch with the bobbin thread.

If I forget to have the presser foot up when I thread, then I get loose stitching on top and loopy stitches on the bottom.

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2 Answers

Bobbin thread tension issues


There might be a piece of thread or lint caught in the bobbin tension preventing it from functioning correctly.

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2 Answers

Tension problem


Set the top tension as recommended by the mfg - this is usually between 3 - 6.

Now re-thread the machine with the presser foot up and see if this doesn't eliminated the loopy stitches.

What appears to be an issue with the bobbin may actually be the top thread was not seated into the tension during threading and the tension cannot control the flow of thread to the needle and you get a loopy stitch.

Keep the bobbin case clean as built-up lint can cause stitching problems.

Feb 20, 2010 | Brother LS-2125 Mechanical Sewing Machine

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