Thread jammed around bobbin case holder....can't get loose
Must say this happened due to a brain failure, not like I'm a beginner, nevertheless it has become a major problem, as I can't figure out how to get the thread out of there. Consequently, the clutch wheel is not moving the bobbin case holder more than 1/4th of an inch, the dog feed plate preventing it going farther. I even went as far as removing the dog feed & plate reinforcement piece, but it didn't change anything. I'm guessing I need to loosen the screws around the holder, about 4-6 of the tiny things, which I felt I was going to ruin the heads if I didn't quit trying, as I can't get them loose. Was I on the right track or not at all? I'm quit sure I'm not naming everything correctly, but am not talking about the bobbin case, but what the case inserts into, that is the piece that has the thread jammed around it, (part of the hook?)
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Re: thread jammed around bobbin case holder....can't get...
Lol...kinda jammed together but i kinda understand, your on the right track but if you are unsure i would take it to a repair shop, dont mess around that area because you can throw the timing off, i would need more information to where the thread is actually hung up, send pic if u can
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Have you removed the bobbin holder and then put it back in lining up the little red markings on the right hand side? If the case has moved slightly then it will keep jamming and the bobbin thread won't clear to form a stitch. The case is held in place by a magnet and a stopper but it will dislodge if you have a bad thread jam, then it keeps happening even if you have removed all the thread because its not in position.
When you take out the bobbin case, carefully inspect it for any damage and burrs in the black plastic, if there are any then file them carefully out with a nail file or fine sandpaper, a burr will keep catching thread too. Or you may actually need to replace the bobbin holder if it has been pierced by the needle badly, they are about $35 or so.
You may also want to get it serviced. On my 6500 during its last service the technician added a little piece that is a Janome "after sale replacement" part. It is slightly longer than the standard part, and is a little metal bit on the left hand side of the rotary hook area which is holding the bobbin holder in place better. Haven't had a major jam up since this was fitted so you may want to get this fitted on yours too.
Are you having thread jamming problems before you get this message?
I found that my bobbin holder which is held by magnets was being dislodged when I had a thread jam up, usually when I was trying to sew something very thick over a seam such as jeans hems.
Have you mastered removing the needle plate and the bobbin holder to clean in under it and putting this all back together again? With my 6500P, the needle had been striking the bobbin holder when it dislodged and rotated out of postion, the bobbin case had holes and damage to the plastic which was then catching the thread as the bobbin rotated making the jams happen.
Each time, I would dismantle the bobbin holder, clean everything, cut the jammed up threads, check the bobbin case and give the damaged bit a file with a nail file to make it smooth again, then put it back matching the red markings on the bobbin holder and the stopper, rethread and start over. I have bought two new bobbin cases too and taken it back to the dealer a couple of times over 5 years.
I've now learnt to not try to stitch over the thick seam intersections, I'll stop before, lift the pressure foot, move the work past the seam, then restart sewing. However, my machine was just serviced last week and it looks to me like the mechanic has added a part to hold the bobbin case in better, its like a little black lug on the left screwed into the outer housing. So perhaps Janome have addressed this issue with an aftermarket repair.
Apologies if this is telling stuff you already knew, good luck.
Check the bobbin tension and that the thread is tight around the bobbin. Make sure that the bobbin is in the right way around - the bobbin thread should double back on itself coming out of the bobbin holder.
Top thread not inserted correctly.(must keep thread tight.)
Debris and loose thread around the bobbin cage. All it takes is a tiny piece of thread in the right place.
Bobbin inserted backwards in the "bobbin holder". When installed correctly, There is some resistance when you pull on the thread, but the bobbin will spin without trying to pop out of the "bobbin holder".
Test your thread quality to start, thread your machine and LIFT the presser foot (this opens the tension disks). Pull your top thread straight back. If you feel no tension no mater how much thread you pull, your thread is good. If that your machine passes that test, then let me know, we can go to step 2. If not, try different spool of thread, same test until you get a smooth pull (tip: always check your thread this way when you thread your machine)
Pull on your threaded bobbin thread while it’s in the machine. Does it pull smooth and even? If so, go to step 3. If not, try a new bobbin (bobbins get bent or distorted if wound too tight).
Clean thoroughly in the hook and bobbin case area and oil 1-2 drop is all.
Thread knotting on the bobbin can be a lot of things but here's some guidance:
If the thread is loose on the bottom of the fabric, it's actually the top thread is too loose. Think of 2 little elves playing tug of war in your machine, one on toip and one underneath. If you have loops on bottom, the top needs to pull harder (tighten top tension)
Jamming bobbin case:
If it is damaged from turning out of place once, it could have rough spots on it that makes the thread hang on it, and keeps making it turn over and over. Use a finger nail board (fine sanding) and smoothall rough spots. Then reset the bobbin case taking care to put the notch in the bobbin case in alignment with the proper spot in the machine (basically 5 o’clock) when looking at the round area where the bobbin case goes.
I had this happen the first day I got my machine. The bobbin case has probably came loose from the holder. There is a step by step cleaning instruction in the manual and it tells you how to reset the bobbin case in the holder in the manual.
Are you making sure that your pressure foot is up when you thread the upper thread? If it isn't then your thread is not seating correctly in the tension disks. It will then be loose and make a birds nest(mess) under what you are trying to sew. The other thing to check is which way you are putting the bobbin into the bobbin case, different machines do it different ways. Some want the thread to come out of the case in the same direction as the slot on the case and some want it to come off in the opposite direction.
Probably when your son broke the needle he knocked it out of time. You will need to have a sewing machine technician to repair that.
Your problem is a simple one.Jamming is due to thread getting trapped on the bobbin holder.All you need to do is to unscrew two screws holding the the bobbin holder clean the same and reasseble it.your problem will be solved.N.Govindarajan
This has happened to me, even though I have been sewing for 30 yrs. When I take the bobbin holder out I realise what I have done wrong. When placing a bobbin into the bobbin holder the thread must be running around the bobbin CLOCKWISE. If incorrect take bobbin out of holder turn it over, so now the thread will run clockwise.If bobbin placed in holder and thread runs anti-clockwise, when you tried to turn wheel to bring bobbin thread up, it will either not do it at all or will make a huge tangle of the threads. Happy Sewing