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Bobbin thread is to loose - Sewing Machines

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  • 276 Answers

Normally it's assumed stitch looping underneath is a bobbin fault, it's most probably the top (needle) thread tensioner you should look at

Posted on Feb 17, 2014

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6 Suggested Answers

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Posted on Jan 02, 2017

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SOURCE: needle will not pick up the bobbin thread

www.whitesewing.com try there web site

Posted on May 29, 2007

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

  • 2 Answers

SOURCE: bobbin thread not catching

Whenever you see loops on the underside of the fabric something is snagging the thread. the biggest culprit is burrs on the hook. the hook is what goes round and around the bobbin. The reason for burrs on the tip of the hook areseveral

ONE ...is by helping the fabric through as the machine is doing the sewing which directs the needle too close to the hook thus scarring the smooth surface of the hook and potentially breaking it off and the needle too. You must allow the machine do it on its own and only guide the material.

TWO...Sometimes if you are sewing s-t-r-e-t-c-h-y double knit material the material calls for a ball point needle. I have gotten good results with the Singer brand YELLOW BAND needle.

Three ... The hook could have gotten out of timing. What this means is that the hook is not meeting the needle on the top edge of the eye of the needle. You yourself can check this out by removing the bobbin (or shuttle, cassette). Install the needle flat side to flat side of the mounting rod and all the way up. By slowly turning the handwheel on the right slowly and watching that the eye of the needle is just below the hook on the upward swing of the needle and that they both meet dead center. This when you need to take it in to a repairman. FrankIy I don't like to advise this because of unscruppulous practices. My boss used to call me a virgin Mary because I wouldn't ripp-off the customers. Anyway at this time you can also check the condition of the hook carefully looking for nicks and scratches on or around the tip of the hook. If there is damage present you can file this down with a very fine emory board or by using a strip of 400 to 600 grit sandpaper as if your were buffing a shoe. If the hook is removeable by unsnapping the snaps on either side its easier to buff. Anything courser may contibute to the problem. If the paper won't remove the damage you may need a whole new hook. If its not removeable you will have to take it in to have it installed.They have to time it properly.

Four...The two disk that you mentioned also has a spring. That sping is there to pull up those loops. If the disks are full of lint from the thread going through. the clups of lint won't allow the discs to apply tension on the thread and thereby having tightened the tension so much that that spring is not working properly.You can clean the discs by raising the foot which opens the discs. With a long narrow pick pull out all that lint without scatching the discs. Check closely that the the thread goes across the top of the machine down through the discs pull up snug so the spring engages,through the take up arm,in the two thead guides, then into the needle front to back or right to left, if it is a side loading bobbin. Now the tension will work properly!

TESTING : Move the TENSION dial to mid point of the dial usually 5. This is your starting point.
With two layers of fabric ( not stretchy) and with a regular needle, set stitch length at about 12 per inch on the dial. Now sew about six inches. Raise the fabric and look at the results. Do minor adjustments necessary on your tension dial up 6...7.. if loose on the bottom 4...3..2 if loose on top.
If you did all the steps above those are the steps a repairman performs and charges $75 except me I used to charge $10 .

Brother machines are good quality it is those hidden gremlins that make a fun hobby frustrating when you don't have someone to turn to without having to shell out cash! Its been a pleasure!

jravenus

Posted on Nov 07, 2008

  • 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

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I do a lot of hemming on my machine, the underneath stitch is real real loose, I tried adjusting stuff, still is so loose I have to cut it and begin again, thanks


Is your top thread not pulling the bobbin thread up? This would be top tension too loose. FYI--be sure to ALWAYS RAISE the presser foot when threading the upper thread so it will seat properly in the tension disks.

If the bobbin thread is loose, then the bobbin tension may need to be tightened.

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Mar 06, 2017 | Sewing Machines

1 Answer

Bernina activa 130 tension loose after needle breaking into bobbin area


Is it the bobbin tension that is very loose? Try tightening it. Also check that the bobbin has been installed in the bobbin case, turning the correct direction and that the bobbin tension is threaded properly.

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If it is the upper tension that is loose and creating "thread nests" under the fabric, the machine is either misthreaded or possibly the thread is not seated completely in the tension disk.

Remove the upper thread from the machine.
ALWAYS RAISE the presser foot and rethread the upper thread from the beginning--verify the thread path is correct.
Set the upper tension to the midway point between high & low number (the factory standard--although it may need tweaking later for your particular machine).

Retest your machine. Hopefully, the issue has been resolved. If not, it may need service.

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Oct 03, 2016 | Bernina Activa 130

1 Answer

Bobbin threat loose


Make sure you have threaded the machine properly--which usually involves removing the thread and rethread from the beginning. Make sure to RAISE the presser foot before threading the upper thread. Check that the bobbin is loaded in the bobbin case and it is threaded properly.

sewing machine loose bobbin thread Google Search
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Jan 26, 2016 | Sewing Machines

2 Answers

Top zigzag is fine, bottom is loose


sounds as if it has insufficient top tension, clean between discs then re thread with presser foot down

Feb 17, 2014 | Singer 4423 Sewing Machine

1 Answer

The upper thread breaks immediately I start operating


Upper thread breaks
needle may be in backwards

Raise the needle bar to the highest point, then loosen the clamp screw

to remove the old needle, place the new needle in the clamp with the flat

side to the back of the machine

Push the needle all the way up to the stop or as far as it will go, then

tighten the needle clamp screw

upper tension may be to tight

the needle may be bent or damaged

thread may be hanging up in bobbin case--check area for loose threads

or lint

Apr 17, 2012 | Sewing Machines

2 Answers

The upper thread is too loose and the bobbin thread is taken up too much


It is the upper thread which pulls the bobbin thread up. If the bobbin thread is taken up to much, one solution is to loosen the upper thread -- but the upper thread is too loose. Therefore, the same problem needs to be combated from the bobbin side.
The thread from the bobbin should slide through a wedge. On that wedge should be a screw. It needs tightened. The bobbin thread should be tight as follows:
A fully loaded bobbin should tangle by the thread without falling. While dangling the bobbin by the thread, bounce the bobbin (yo-yo style). An easy tug should cause the bobbin to release an inch or two of thread and then the bobbin should stop falling on its own.
Once the bobbin tensioner is correct, you should be able to tighten the upper tensioner.

Jun 02, 2011 | Singer 5050 Mechanical Sewing Machine

1 Answer

How to thread the bobin on a elna air electronic su. where do i put the loose end when threading the bobin


I assume you mean when you wind a bobbin full of thread??

You take the end of thread from your spool through the tension device or an eyelet on top of the machine, then back to the bobbin on the bobbin winder and thread the loose end through a top hole on the bobbin. Click the bobbin in against the stop and press on the pressure foot to start to wind. Hold the top thread for a bit as the bobbin starts to fill and then once it has been covered by a row or two of thread, stop and cut of the loose end from top of the bobbin. Now continue to wind the bobbin until it cuts out as it fills against the stopper. Nudge the thread with a finger tip as it spools onto the bobbin to help get the bobbin filled top and bottom and not just in the middle. (bit like when you coil the garden hose onto the reel, it always wants to go in the middile only and then jams up LOL).

Also a really good idea to place your scissors handle into the top of the thread spool to slow/control it as the thread reels off it. This helps give an even tension on the thread going onto the bobbin which really helps with stitch quality later.

Jan 18, 2010 | Elna 8007

1 Answer

Using Singer 7470 for the first time, and my bobbin thread is bunching terribly. There is a loud sound from the bobbin chamber, as if the mechanism is bouncing around??? How can I fix this bobbin issue?...


1. Take bobbin out and re-insert and thread.
If that dosen't work, try:
2. Take bobbin out and bobbin case, clean area and re-insert bobbin case and bobbin.
If that dosen't work, try:
3. Re-thread the top thread that goes to the needle. (Sometimes the thread dosen't hook to the "Thread take-up"(page 6 on manual). It pulls the bobbin thread and the bobbing becomes loose inside the bobbin case.
If that dosen't work, try:
4. Wind a new bobbin (Sometimes a bobbin might wind thread to lose) Do not wind thread to the edge of bobbin.
If that dosen't work, you should take it in to be serviced...Somenthing might become loose that only a technitian can correct.
Also check manual for troubleshooting.
Good luck.....
Chickiefl

Apr 15, 2009 | Singer 7436 - INGENUITY

1 Answer

Threading bobbin


Put the bobbin in the bobbin case and slide the thread in the slot.
Pull the thread until it goes under the flat spring.
Now, by holding the bobbin case, pull the thread.
It should'nt be too loose or too tight.
to adjust the tension of the thread turn the small screw right for more tight, or left for more loose.
Hold the bobbin case upwards and put it in to the sewing hook until it clicks.

May 25, 2008 | Husqvarna Viking 1

2 Answers

Elna supermatic bobbin and threading instructions


Check out these instructions and diagram. Good luck. Paste this link to your Address bar... http://www.sewusa.com/Threading_Diagrams/Threading_Pages/Elna_Sewing_machine_threading/Elna_Supermatic_threading_diagram.htm

Sep 09, 2007 | Sewing Machines

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