How to adjust the tension - Elna 2005 Mechanical Sewing Machine

Yes, the upper thread tension on the Jan ome MC 11000 SE can be manually adjusted. To do so, start by loosening the tension dial on the back of the machine until the tension is light enough. Then slowly turn the tension dial back up until you reach the desired tension.

Tension is most often adjusted at the top tension dial. Only in extreme cases where the top tension does not make the needed adjustments would you need to adjust the bobbin tension. Also, bobbin tension is very sensitive and can easily throw your machine into a tizzy.

Basically, sewing machine tension is simply a tug-of-war between the top and bobbin thread. When they are equally matched, the threads will meet in the middle of the fabric. This is the optimum tension for most sewing. If the bobbin thread is coming up to the top of the fabric, the top tension is too tight--loosen it. If the top thread is going to the underside of the fabric, the top tension needs to be tightened. The higher the number on the dial, the tighter the tension.

FWIW, tension is static. It is not one of those, set it and leave it forever deals. Whenever the fabric, needle, thread are changed, there's a good chance the tension will need to be tweaked.

Understanding Thread Tension Threads

Generally, thread tension should be adjusted at the top thread. Only in extreme cases should the bobbin tension be adjusted.

http://www.singersewinginfo.co.uk/tension

How to Adjust Tension Sewing Machine

Liz Kettle adjusting your bobbin case tension 1 wmv

Fixing Top Load Bobbin

Sew What Up View thread Singer Stylist 513 threading correctly

You would need to adjust the tension screw so the tension is looser than usual. However, remember to mark the setting BEFORE making any adjustments so you will know where to return the original setting.

Bobbin Tension How and Why Tension is Adjusted

Understanding Bobbin Tension

Understanding Thread Tension Threads

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How to change the tension on a sewing machine?
Adjust your top tension if it's too tight. To decrease your top tension if it is too tight, turn your knob so the numbers are decreasing. Try ½ to 1 number lower, then test the stitches on a piece of scrap fabric. Continue until it looks even on both sides and you can no longer see the bottom thread on the top.

How to Adjust the Tension on a Sewing Machine: 13 Steps

www.wikihow.com/Adjust-the-Tension-on-a-Sewing-Machine Search for: How to change the tension on a sewing machine?
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Usually, tension adjustments are made to the top. The bobbin tension is adjusted mainly only when using a different weight of thread (either very thin or very thick). Very seldom is the bobbin tension changed.

Understanding Thread Tension Threads

http://ohyoucraftygal.blogspot.com/2013/10/sewing-lesson-10-how-to-fix-tension-on.html

https://www.craftsy.com/blog/2015/03/how-to-adjust-sewing-machine-tension/

Generally, tension adjustments are made using the upper thread tension. Most likely the upper tension is set too tight and is pulling the bobbin thread up. Loosen the upper tension and try again. Tension is accurate when the upper thread and bobbin thread meet in the middle of the fabric. Whenever fabric, thread & needle are changed, there may be a need to adjust the upper tension.

HINT: When threading the upper thread, make sure the presser foot is RAISED during threading to make sure the upper tension disks are open and the thread seats properly.

Bobbin tension is only adjusted when the tensions are way out of whack. Only slight turns of the bobbin case tension screw are made in graduated movements and testing occurs after each adjustment.

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Generally bobbin tension is the last thing to try to adjust on your machine. Most sewists adjust the bobbin tension ONLY if they are using very lightweight or very heavyweight thread in the bobbin. Most sewists will advise to make all possible adjustments to the top tension before tackling the bobbin tension to resolve issues.

Try searching YouTube videos or this may be helpful:

Bobbin Tension How and Why Tension is Adjusted

Understanding Bobbin Tension

Setting the Bobbin Tension on your sewing machine

Liz Kettle adjusting your bobbin case tension 1 wmv

How to fix Tension Don Panic

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I'm sorry, but you will have to be more specific. There is a top and bottom tension. The top tension is adjusted using a dial of some kind, visible on your machine. It has numbers on it; generally the lower the number, the tighter the tension. The bobbin tension generally does not need adjusting, although it can be adjusted. Please write again to let me know what it is doing that leads you to believe the tension needs adjusting.

pucker is caused by too loose or, to tight adjustment of: the thread tensioners both the bobbin tensioner and, the needle tensioner need to be adjusted: to adjust the needle tensioner turn the side knob clockwise is tighter counterclockwise loosens; the bobbin tensioner is a tiny screw on the bobbin holder adjust both tensioners until your stich loops' both top and, bottom are tight but, the machine does not break the thread