Question about Janome Sewing Machines

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My bobbin thread is going loose what can i do?

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  • Janome Master
  • 1,564 Answers

Are you making sure that your presser foot is down? Remember up with threading, down when sewing. It's that important. ;)

Posted on Jul 24, 2013

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 5 Answers

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

SewExpress
  • 41 Answers

SOURCE: Bottom (bobbin) thread suddenly loosens

Good morning,

A few steps to help you troubleshoot:

  1. Bobbin in the right direction: when looking at the bobbin in the bobbin case, pull the thread tail. The bobbin should turn clockwise.

  2. One of the biggest causes of what you describe is simply a burr/rough spot on the needleplate or hook.

    Remove the needleplate from your machine and inspect the opening for any rough spots... run your finger over the area to feel for any sharp bits. If you discover some rough spots, they can be smoothed using a fine emery cloth. Use this gently - don't want to distort needle opening, just smooth the roughness.

    If no rough spots on needleplate, open the bobbin cover and turn the handwheel towards you until the hook (little pointy part of bobbin area) is towards the bottom of the machine. Run your finger over the point to feel for any rough spots. Again - a fine emery cloth can smooth this. Be VERY careful to not flatten the hook - just a little smoothing to get rid of rough bits. Too much can ruin the hook. If you're uncomfortable with this, don't hesitate to take to your Pfaff tech and point out the rough bits.

  3. Hold the bobbin case/bobbin between finger/thumb, making sure you're not pressing on the bobbin tension (little flat metal piece on side of case). Pull the thread smoothly out of the bobbin case to see if you feel any little glitches. If you do, there may be a bit of fuzz/broken thread trapped under the bobbin tension.

    You can loosen the large setscrew on the side of the case to allow you to blow out whatever may be trapped.

  4. While your top thread may appear fine, there may be a bit of fuzz or broken thread wrapped around the take-up lever. This would interfere with the smooth feeding of the upper thread, also causing an inconsistency in the bobbin.

    Use a flashlight and look down into the top of the machine/takeup lever area. You may be able to see a bit of thread and remove it. If you can't see an offending bit, try "Flossing" your upper thread path by grasping the thread close to the spool and after it comes out of the needle. Run the thread back and forth through the thread path to see if you can dislodge anything

  5. If none of the above help, we'd suggest you have your local Pfaff authorized tech take a look. It's always a good idea to take your machine to it's respective authorized service person as they'll be the ones to know the most about it and have access to any repair parts.
Please don't hesitate to respond if you need further help or clarification.

Happy sewing,
Kim & Linnette

Posted on Jun 13, 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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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 thread is not hooking to the bobbin thread


have you tried a new needle
is the bobbin damaged or warped
is the bobbin inserted correctly into the bobbin case
some bobbins only go one direction-tyr turning the bobbin the opposite
way
clean under the needle plate & bobbin area for loose threads & lint

Apr 18, 2012 | Sewing Machines

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

The bobbin thread is not catching. I have rethreaded the entire machine multiple times, tried different bobbins, etc. However, the needle and thread are not catching the bobbin thread. The bobbin thread is...


try a new needle
make sure the bobbin is not warped
make sure the bobbin case area is free of lint or loose thread
make sure you hold the upper thread tail while it's going down to pick up the bobbin thread
make sure there is a 2 to 4 in tail for the upper thread to grab

Aug 01, 2010 | Brother Disney PE-180D Computerized Sewing...

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

Just want to do a yearly good cleaning myself


Remove the bobbin, bobbin case and covering. Use a small brissle brush (one should have come with the machine) and clean around the exposed bobbin area. You can use a vacuum hose to help suction out the lint and loose threads. Remove the needle plate and brush (or suction) out the lint and loose threads from that area. Clean out loose threads and fluff from the upper threading area. Usually there is no need to oil but if you feel a need to use Tri-Flow oil available from bicycle shops or Amazon.com. Put it all back together and you should be good to go. When a service technician services the machine they also calibrate bobbin tension (or Viking1 and 1+ the tension resistence should be 22g). Service also includes verifying that the needle center position is actually in the center (calibrates to center when you turn the machine on), that the feed dog heights are not too high or low, that the upper tension units are correct (not too lose or too tight). Here's info on checking the upper thread tensions:

Thread the machine top and bottomn. Watch the needle as you slowly turn the handwheel counter clockwise (toward you) and the needle point touches the fabric (make sure presser foot is down). Is the thread still relatively taunt? If it is loose, the upper thread tension unit does not have enough tension. Check the areas where the thread goes and make sure you remove any loose threads or fluff which could be inhibiting the tension discs from closing over the thread. If the tension unit still is not tightening enough, the tension unit may need to be replaced or the circuit board replaced. If everything is ok in the upper thread area, now look at the bobbin area. With no fabric, watch as the needle enters the bobbin area. Does it go down and the upper thread catch the bobbin thread and pulls it to the surface? Check for anything preventing the bobbin thread from being pulled up to the surface through the needle plate.

Good luck.

Jan 02, 2010 | Husqvarna Viking 1

1 Answer

Sewing a straight seam will be going well until the bottom thread suddenly becomes very loose and loopy. The top thread is completely fine. The only clue that this is happening is the spool "jumping"...


Hello,
Here are some solutions to try.

* Increase the upper thread tension on your machine. It may be too loose.

* Decrease your bobbin tension if your sewing machine allows you to adjust it. Consult your manual.

* Reinsert your bobbin. It may be inserted incorrectly.

* Change your thread. If your upper thread and bobbin threads are different types, try using the same thread for both.

Although you did this, it won't hurt to re-check. Make sure bobbin is threaded correctly.

Hope this helps.

Sep 21, 2009 | Singer 1120 Mechanical Sewing Machine

2 Answers

Bobbin thread bunches up creating a tangled mess under the plate


This could either be due to the bobbin being wound too loosely, or the tension on the top thread is too loose. This just happened to me the other day, and I thought it was the bobbin thread, but then I put another bobbin in with a different color than the top thread (this is a huge help in diagnosing thread issues), and I was surprised to find that it was actually the top thread that was a big loopy mess on the underside of the fabric. I fixed it by tightening the tension on the top thread (quite a bit), and everything was fine.

Jan 23, 2009 | Husqvarna Viking 1

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