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How do I adjust the bobbin thread tension - Singer 2517 Mechanical Sewing Machine

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Whoa, why are you adjusting bobbin tension? Your machine looks fairly new, I think I would try rethreading and making sure that I have a fresh needle in the machine if there is thread bunched up under the fabric. Usually, it is the top threads causing the problem. Read your manual, if you don't have one go to singerco.com and download one for free.

Posted on Sep 09, 2010

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Posted on Jan 02, 2017

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My bobbin thread is showing through on front please help


Loosen your top tension. If it is too tight, it will pull the bobbin thread to the top of the fabric. If it continues, then it may have to do with the thread weight you are using in the bobbin or the bobbin tension needs to tightened slightly. HOWEVER, adjusting the bobbin tension is usually a last attempt. It is a sensitive adjustment.

I frequently use a lighter weight thread for quilting and need to adjust the bobbin tension. So, I have a separate bobbin case that is adjusted for that purpose only. Having to adjust the bobbin tension every time one changes the thread weight is a real pain. For most general sewing, the factory set bobbin tension should be sufficient.

Understanding Thread Tension Threads

Nov 09, 2017 | Sewing Machines

2 Answers

Try sewing but bottom thread on fabric is crumpING UP


needle thread tension is not adjusted up properly tighten the setting until you have resistance when you pull the thread to thread the needle

Oct 02, 2016 | Sewing Machines

2 Answers

How do I adjust tension on the bobbin?


First of all, be absolutely certain that the problems being experienced are not a result of the upper thread tension, ie threading when the presser foot is not in the up position, thread pathway is correct, a brand-new needle compatible with the thread and fabric, etc.

Before making any adjustments to the bobbin tension, be sure to mark the bobbin case where the skrew slot sets with permanent marker or a small drop of nail polish. This will allow you to reset it to original should your adjustments not be successful. And, make only minor movements of the tension adjustment, ie 1/8th of a turn, then re-test, before making another adjustment. Tiny incremental changes will make a huge difference in the outcome.

Understanding Bobbin Tension

Bobbin Tension How and Why Tension is Adjusted

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=6&ved=0ahUKEwiAs_S73ZnMAhUpnoMKHXQjA7cQFgg4MAU&url=http%3A%2F%2Fwww.ca.uky.edu%2FHES%2Ffcs%2FFACTSHTS%2FCT-MMB-213.pdf&usg=AFQjCNE4QlGk1Fvt8K2UGCRCfzMpGS-A2Q&cad=rja

Understanding Thread Tension Threads

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Apr 18, 2016 | Sewing Machines

2 Answers

Why is the bobbin thread bunching up?


if your saying that your bobbin thread is balling up under the platen plate , this is a sure sign that your top thread tension is not correct and there isn't enough tension to pull the bobbin thread up from below

Mar 24, 2016 | Sewing Machines

2 Answers

Loose stitches when using zipper foot.


If it has been a while since the needle has been changed, doing so may be helpful. Also be sure to use a sharp needle that will more easily penetrate the zipper tape.

Be sure that you are actually lowering the presser foot before stitching (this most likely isn't the case--just a thought).

Most machines also have a presser foot pressure adjustment that can be loosened or tightened to accommodate different thickness of fabric and the amount of pressure applied by the zipper foot on the fabric and the feed dogs. Experimenting with that pressure adjustment may be helpful.

Some bobbin cases also have a finger extension with a hole through it. If you are experiencing issues with bobbin tension, sometimes threading the bobbin thread through that finger will help even out bobbin tension.

Using lighter weight thread will also affect the resulting thread tension. If the bobbin case is wound with light weight thread, the bobbin tension will not operate the same as it would with standard weight thread. Light weight thread in the bobbin will cause looser tension, but heavier thread will cause a tighter tension.

Technicians use a standard weight thread to test tension on a machine, but if you use a different weight thread, then your results most likely will not be the same.

Bobbin Tension How and Why Tension is Adjusted

How can properly adjust my tension

Understanding Thread Tension Threads

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=12&cad=rja&uact=8&ved=0ahUKEwiBnuWi4tnLAhXBtIMKHRRPA5gQFghPMAs&url=http%3A%2F%2Fwww.ca.uky.edu%2FHES%2Ffcs%2FFACTSHTS%2FCT-MMB-213.pdf&usg=AFQjCNE4QlGk1Fvt8K2UGCRCfzMpGS-A2Q

Most tension adjustments can be accomplished via the upper tension. However, there are times when the bobbin needs to be adjusted. Sewists are frequently nervous about adjusting bobbin tension. It is important to mark with permanent marker where the skrew-slot is positioned on the bobbin case BEFORE attempting any adjustments (at least if you need to return it to the original setting, you'll know where it was). Make only 1/8 turn adjustments at a time and re-test. (Righty-tighty, Lefty-loosey!) Sewists who frequently use different weight threads in their machine will often have an extra bobbin case that is set up specifically for that thread weight so they don't have to manipulate the bobbin case every time a thread is changed.

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Mar 24, 2016 | Juki DDL-8700

1 Answer

Bobbin thread is straight adjusting upper tension does nothing


Remove the upper thread. RAISE the presser foot and rethread from the beginning. (This opens the tension disk so the thread will seat properly.)

Set the upper tension to the midway point between high & low number and retest your stitch. See if the upper tension is now controlling the upper thread. You may have to move the upper tension a bit to achieve the optimum tension. Both upper and bobbin thread should meet in the middle of the fabric.

If the bobbin thread is really tight and holding the upper thread down, then the bobbin case needs a tension adjustment. Search the internet for instructions to adjust bobbin tension.

Jan 29, 2016 | Sewing Machines

1 Answer

The bobbin thread shows to the front. Does the bobbin or thread tension need adjusted


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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Jan 20, 2016 | Sewing Machines

2 Answers

How do to adjust the bobbin tension? Do I need to remove the throat plate and loosen the screws that hold the bobbin mechanism in place so I can get to the tension screw?


the tension screw for the bobbin thread is on the side of the bobbin carrier
that bit that you put the full bobbin in to clip it back onto the machine
t there is a small spring plate that you pull the bobbin thread under when you put the bobbin back in the carrier and you pull the thread down a slot and under that spring plate
the tension is adjusted by that small screw that holds that plate on
only very small adjustments make a lot of difference to the tension
don't touch any other screws or you will alter the needle /hook timing and that will put you a pickle

Oct 02, 2015 | Sewing Machines

2 Answers

Difficulty adjusting tension to avoid bobbin looping


it sounds like your bobbin tension is too tight. to adjust bobbin tension, remove bobbin case (remove needle plate first) and adjust bobbin tension screw on side of case until bobbin thread has a slight resistance as you pull it through the bobbin case.

this will be trial and error until you get best result. you should always try and match top and bottom threads. if the top thread is quite thick you may have continue to increase needle thread tension until balanced.

scott

Jul 26, 2009 | Brother CS6000i Computerized Sewing...

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