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Hi, using a jonome finesse model 356, changed the thread on the bobbin and now its knotting up and not loose from the bottom, did i thread it incorrectly? tension is wrong now?? thanks!

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Check 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. The bobbin tension adjustment is the small screw in the plate on the bobbin case that the thread passes under as it comes off the bobbin and goes out.

Posted on Apr 11, 2011

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I have juki 1541industrial machine . It started sewing upside down . Instead of nice stiching on top show side it on bottom. Any ideas


This is caused by the tension between the bobbin and needle threads being out of balance. If the knots between the stitches are on the bottom side, then you need to tighten your needle thread tension a little at a time until the knot is in middle of fabric. The reverse of this is if the knots are on the top, then either your bobbin tension is too loose or your needle thread tension is too tight. If this occurs, then loosen your needle thread a little at a time to see if knot goes down in middle of fabric. If it does not, then you need to increase the tension on your bobbin thread. This done by taking bobbin case out and tighten the small screw located in the middle of the spring on the side of the case. You only need a slight, steady pull on the bobbin thread - the more you put on the bobbin, the more you are going to have to put on the needle thread.

Feb 13, 2015 | Juki Sewing Machines

1 Answer

I have a VX1250. I don't know how to regulate the tension.


There is two places to adjust thread tension: the top tension device controls the top thread tension and is usually a dial or knob with numbers on the front of the machine.

Then there is some form of tension device on the bobbin; in your case I believe the Brother has a removable bobbin case with a tension spring which holds the bobbin thread firmly: the tension spring can be adjusted with a screwdriver but once set, you shouldn't need to adjust this much, just alter the top tension slightly for different weights of fabric. So start by setting top tension dial to 4-5 and test stitch a seam. Use different coloured but the same type of thread top and bottom and take a look at the seam. You want to see a balanced even seam.

Here is a link to a great info site for this:
http://www.sewusa.com/Sewing_Machine_Repair/Thread_Tension_Settings.htm

If the bobbin thread is too loose, then you probably will need to finess the tension spring on the bobbin case and adjust this slightly. The best way to set the tension on the bobbin case is as follows. Load the bobbin into the bobbin case and pull the thread tail into the tension spring, then suspend the bobbin by holding the thread tail up in the air (the dangle test). You want it to be just tight enough to hold its own weight, but still able to release thread when you pull gently downwards on the bobbin case. If it isn't doing this then take your little screw driver and adjust the screw on the leaf tension spring by ONE QUARTER TURN ONLY. Lefty looser, Righter Tighter. Then test again, and adjust again until its right.

Now test stitch again and finess your top tension to get the seam even. Remember to change the needle for each new sewing project too; this will impact tension also.

Jan 04, 2012 | Brother Sewing Machines

2 Answers

Bobbin thread keeps knotting


1. Do you mean that there are knots in the bobbin thread?
2. Is the bottom thread in your stitching looping and knotting.

If yes to 1. you need to rewind your bobbin fresh, and keep slight tension on the thread reel that you are winding it from. Put the handle of your scissors into the top of the reel to apply a gentle pressure while winding. Keep your eye on the bobbin as it winds and give it a nudge with a finger tip to ensure it winds the bobbin evenly top, middle and bottom.

If yes to 2, then you need to check your bobbin threading, is the thread even under tension. Is the bobbin tension set correctly. Break out your manual and revisit this to ensure it is set correctly.

Feb 27, 2011 | Brother XL-5340 Mechanical Sewing Machine

1 Answer

Singer sewing machine bobbin thread knots rather than forming stitches or forms large loose stiches on bottom of fabric


What you have going on is a bobbin problem. The knots are referred to as birds' nests and happen when your bobbin thread gets caught on a piece of the bobbin casing. The large, loose stitches are normally caused by a problem with the bobbin case, a bobbin that is would properly, or when you're getting to the end of the bobbin's thread and the thread is loosely would on the bobbin at that point.

You're best bet is probably to buy a new bobbin casing. They're usually about $25 or so and you should be able to find one on eBay by searching for Singer (your machine name and model) under the Crafts category. The silver plate on top of the area covering where you place your bobbin into has screws you need to carefully remove (careful not to loose them!). If you need to, take pictures with your cellphone or digital camera as you remove the old bobbin casing so you can see how to put the new one in.

This should take care of the problem. If, for some reason it doesn't, you may well have a problem ALSO with your bobbin tension, and that should be looked at by a Singer Technician. You can find one in the yellow pages near you or probably by searching Yahoo Local. Happy Sewing.

Dec 08, 2010 | Singer CE-100 Futura Computerized Sewing...

1 Answer

I have a Janome that looks similar to the Sewist 625e and is 25 years old. The underneath threat of the stitch is knotting up underneath. I have checked that I have threaded top thread correctly. I...


Hi. It may be that you need to adjust the tension. Put a different color thread on top than is in the bobbin and sew a couple of inches, then check. I suspect you'll find that the top thread is the one that is loose and knotting up. (It's hard to tell unless you're using two different color threads.) If that's the case, your upper tension needs to be tighter. Tighten it just a bit, then sew a few more inches and check again. Repeat until you don't see any of the top thread on the bottom (or maybe just a little bit) or the bobbin thread on the top (or maybe just a little bit.).

Hope this helps!

Robbie

Aug 11, 2010 | Janome Sewist 625e

2 Answers

Singer 301a sewing machine does not sew for more than 2 secs...top thread just knots into a huge ball on bottom of fabric...everything is threaded correctly and all tension set well...next step is trash...


Recheck the top thread and bobbin tension for equal balance of thread when sewing. The knotting of thread problem is usually because the tensions are too tight or too loose and/or thread may not be properly threaded. Another reason is when the bobbin thread is wind imbalanced it will cause the thread to knot-up when sewing. This problem is notorious when the bobbin is winded within the bobbin case on some machines. The bobbin thread need to be wind smoothly in the bobbin to avoid this problem.

Jan 24, 2010 | Singer Sewing Machines

1 Answer

Knots!


Try changing the needle sometimes over use causes burrs on the end of a needle and always remember to use proper needles to appropriate fabrics. Change needles frequently to avoid unnecessary wear on the feed dog teeth

Dec 12, 2009 | Janome Memory Craft 10000

1 Answer

Husqvarna Vicking - The bobbin thread is knotting


Check that it is threaded correctly (both top and bottom) making sure that the upper thread is in the takeup lever. 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. If you have still not been able to resolve the problem suggest you take it to an authorized husqvarna viking dealer for service. You can locate a dealer near you by visiting the husqvarna viking website and clicking on the Dealer link on the left-hand side of the page - http://www.husqvarnaviking.com

Good luck.

Dec 04, 2009 | Husqvarna Viking 1

1 Answer

Upper thread knots up with bobbin thread when sewing a stich


Thread test
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)
Step 2:
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:
Tension:
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.

Mar 16, 2009 | Sewing Machines

2 Answers

Problems with Singer 2732


"Birdnesting" occurs when there is no tension on the needle thread to pull the bobbin thread. This is easily corrected by rethreading the machine, following the threading path carefully and making sure the thread is fully engaged in the tension mechanism.

Jan 02, 2009 | Singer 2732 Mechanical Sewing Machine

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