I have just bought a Janome 4020. I tried the different stitches, when I used the overcast foodt it started making loops on the top-side of the material and it started to clunk. I adjusted the tension. Then the thread wouldn't come freely .
So... I rethreaded it, took out the spool and cleaned the casing. It doesn't clunk exactly but is quite noisy, just like an old Singer. Can you tell me what it might be?? Many thanks
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Re: noise from bobbin case on new Janome 4020
Check the bobbin to be sure it is inserted correctly. When you pull on the bobbin thread the bobbin should turn to the left(orcounterclockwise). If it doesn't, the thread will come out of the bobbin tension and give you loose stitches on top of the fabric. It will also make a noise because the bobbin is bouncing up and down.you will need to readjust your tension again. sewman7
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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
Hi Leann: Think about how a sewing machine works. Now think about what kind of difference an 1/8th of an inch distance would make. Yes. You will need to adjust your top tension when you do free motion work. Keep in mind that plate is not just stopping your feed dogs from working... it's holding your materials that far away from the bed of the machine... so when the thread makes a loop and tightens for the stitch it has the extra 1/8th of an inch to make up for... if the tension isn't right... you got loops. There are no "specific" settings for tensions... you learn by doing you stitch a few stitches on like materials and tighten until you see a good stitch.
have you tried changing the needle? have you tried adjusting the top thread tension? it might be the needle and the thread are not compatable,, the needle may be to light for the thread. if the suggestions don't help, sew on the sewing machine till it makes the loop and then stop the machine and take it to the repair man and let him see the loop and then ask him why it's making the loop.
Ok, Let's understand exactly what is going on. You said. "the top stitch is loose." So that we are clear....do you mean that you are getting loops on top of the seam? Or do you mean that you are getting wiggly stitches on top and small loops on the bottom of the seam? It's important to know... Because loops underneath means the top tension isn't right. Maybe you didn't thread with the presser foot in the UP position... or your tension is dialed too low.
Now, if you are getting loops on top of the seam... that means the top tension is too tight. Loosen the top tension. Make sure your bobbin is inserted correctly. If loosening top tension isn't enough, you may have to tighten the tension screw on the bobbin case/ or bobbin carrier.
try adjusting the top thread tension for the loops try changing the needle and see if that help any if not then take the machine back and tell them what the machine is doing if the machine was adjusted, then they should have checked the stitches to make sure that the stitches were normal both forward and backwards.
Check to make sure that the thread running between the tension disks. A quick check is to lower the presser foot and then pull on the top thread. If you do not feel any tension, then it may not be ran in between the disks. Also, check to see if your bobbin is inserted correctly going counter-clockwise. This can cause the "loose" loops and thread jams in the bobbin casing.
If it was sewing correctly BEFORE the needle break...why did the needle break in the first place?...and what fixes did you make?
If it sewed properly...what changed?
Cut your upper thread close to the spool...make sure the presser foot is raised and pull the cut off thread section through/out of the machine from the needle area (sewing direction...do not pull the thread backwards!)
Clean out the bobbin area...remove any traces of lint or pieces of thread...look for any broken off needle pieces... brush the bobbin area out....then add a drop of sewing machine oil (but only if your manual says to oil that area).
Remove the needle plate to expose the feed dogs...brush/clean out that area too and add a drop of sewing machine oil...then secure the needle plate back on.
Replace the needle...do it again...yup...some needles arrive bad from the factory. Make sure the needle is inserted and positioned properly. Then thread the machine WITH the presser foot in raised position. (The thread needs to get seated into the upper tensions.)
..with the.presser foot down...thread the new needle.
Oh...and use the correct needle for the thread. (a universal 80/12 is standard).
Thread can cause issues too. Try a different bobbin, or maybe a different spool of thread to see if that makes a difference.