Question about Singer One Plus Computerized Sewing Machine

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Tension problems My top thread tension is too loose, I keep getting little loops about every twenty stiches or so on the back side of my fabric, top side is perfect. I have re-threaded countless times, changed the needle, and adjusted the tension wheel and nothing is helping... don't know what to try next. Maybe something is jammed inside, is there a way to take the front cover off this machine?

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Yes the covers come off all machines. That does not mean it is easy to do. Since the problem is not on every stitch I would check the tension by installing a size 80 needle put the presser foot down and pull on the thread towards the back at a 45 degree angle to the direction of sewing. The needle should bend about a 1/8 to 1.4 inch at normal tension. If the tension is steady it could possibly be other reasons that the loops are forming under the fabric. Such as a burr on the hook, or bobbin case, lint, or clearance between the positioning devices for the bobbin case. I made a video about tension problems that are not actually caused by tension.

I also did one on common repairs for a top load bobbin sewing machine.

Posted on Nov 18, 2013

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Posted on Jan 02, 2017

RickE1
  • 202 Answers

SOURCE: Top thread stitches correctly but bottom thread loops.

Make sure your bobbin is not in the case upside down and turning the wrong way.
Sometime people thread the machine with the presser foot down and the upper thread does not go between the tension discs, so check that.

Posted on Jan 11, 2009

  • 6 Answers

SOURCE: Singer CG 550 Top thread keeps wraping around the bobbin and jam

Have you checked the top thread is correctly placed in the spring of the bobbin case?

Posted on Feb 21, 2009

  • 255 Answers

SOURCE: Singer 301a...sews on top of fabric

This is a tension adjustment problem. It's good to use two different colors of thread, like you did. From your description, the top thread (needle thread) tension needs to be tighter. As you tighten the tension of the top thread, you'll see that the top thread pulls the bobbin thread up into the fabric so it's no longer laying loose on the bottom of the fabric.

You'll need to have the pressure foot down when you tighten the tension. Tighten it a little, sew a practice seam, check to see what the stitch looks like. Tighten it a little more, sew, check, etc etc--until both top and bottom look the same--you shouldn't see much (if any) of the bobbin thread color on top of the fabric or the top thread color on the underside.

Let me know how this works for you, ok?


Robbie

Posted on Jan 26, 2010

  • 1116 Answers

SOURCE: The bobbin thread is sewing loose stitches and

Always have the presser foot up when you thead any sewing machine.

Make sure the flat side of the needle shaft is facing to the back of the machine.

Don't do anything to the bobbin tension. Set the top thread tension to what is recommended by the mfg.

Make sure the thread from the bobbin is feeding from the bobbin in the correct direction and through the correct guides.

After inserting the bobbin and threading the machine, lower the needle (hold on to the thread tail) and then raise it by turning the hand wheel by hand to pull up the bobbin thread.

Gently pull the two threads under the presser foot and to the back of the sewing machine before you begin to sew.

Posted on Feb 19, 2010

  • 20 Answers

SOURCE: bottom thread too loose; tried

Check for correct bottom thread tension.
It's provided by a flat spring on the bobbin holder.
When the bobbin is correctly installed, pulling on the thread
should meet with slight resistance, and the bobbin should spin without
trying to jump out of the bobbin holder.

Posted on Dec 18, 2010

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1 Answer

Upside down stitching


Am having a difficult time picturing this. Sounds like the upper thread is creating loops under the fabric and the bobbin thread is showing on the top of the fabric.

Make sure to use a brand new needle.

Remove the thread from the machine
ALWAYS raise the presser foot and rethread the upper thread.
Make sure the thread path is correct.

Check that the bobbin is turning the correct direction in the bobbin case and the bobbin thread is threaded through the bobbin tension correctly.

Set the upper tension to the midway point (factory standard), however, this setting may need to be tweaked for your particular machine.

Bring the bobbin to the top of the project Before beginning to stitch.
How and Why to Bring up the Bobbin Thread

Retest--begin sewing slowly.

If the upper thread is still showing on the other side of the fabric, the tension is too loose. If it is pulling the bobbin thread up to the top of the fabric, the upper tension is too tight

OR the bobbin thread tension is too loose. (CAUTION: make only small adjustments to bobbin tension--1/8 of a turn at a time!!! It also helps to mark the screw groove location with magic marker on the bobbin case BEFORE making any changes so you can back it out and return to the original setting.)

Bobbin Tension How and Why Tension is Adjusted

Understanding Bobbin Tension

Understanding Thread Tension Threads

Sewing Lesson 10 How to Fix Tension on Your Sewing Machine

...

Oct 05, 2016 | Sewing Machines

2 Answers

Back side of stitches are loose


increase the thread tension of the needle thread
this is an indication that the tension is not enough to pull the bobbin thread up tight

Jun 15, 2016 | Sewing Machines

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When sewing looks fine on top but on the reverse side of fabric it is bunched up loops and not really stiched


so looping on underside indicates top thread is not in tension, you need to recheck your threading from the thread spool, through the various thread eyes, the thread take up lever, the tension discs and then to the needle. It sounds like your thread has not gone into the tension discs fully. It is important to always thread up with the presser foot raised as this opens up the tension discs too so the thread can be laid in fully.

Jul 18, 2015 | Sewing Machines

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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

Why is thread looping under fabric, looks great on top???


Tension is based on tightness of stich. Hold with two fingers and pull should only feel little resistance. Both top and bobbin tension should be eq

Aug 19, 2014 | Sewing Machines

1 Answer

THREAD GET BUNCHED UP UNDERNEATH THE FABRIC, THE STICHES SEEM TO BE INCOMPLETE THE TOP LOOKS GOOD THAN I TURN IT OVER AND THE THEAD IS BUNCHED AND LONG LOOPS OF THREAD ARE LEFT. THANKS LOU


Hi Lou! This sounds like a tension problem--the tension on the top thread is too loose. Try using different color threads on the top and bobbin, then carefully rethread everything. Stitch a couple of inches and check the underside. If the top stitches look fine and the bottom ones are loose and loopy, and with the pressure foot down, tighten the tension. Move the knob or dial (whichever you have) just a little bit. Sew a couple of inches more, and recheck. Continue to sew and recheck, gradually tightening the tension, until you see little if any bobbin thread on the top or top thread on the underside of the fabric.

Let me know if this helps, ok?


Robbie

Jan 27, 2010 | Singer Sewing Machines

1 Answer

Singer 301a...sews on top of fabric nicely...bottom is just loose loops of thread...it's like the bobbin is not sewing...I put 2 different colors in to see...top is perfect...on bottom of fabric I see the...


This is a tension adjustment problem. It's good to use two different colors of thread, like you did. From your description, the top thread (needle thread) tension needs to be tighter. As you tighten the tension of the top thread, you'll see that the top thread pulls the bobbin thread up into the fabric so it's no longer laying loose on the bottom of the fabric.

You'll need to have the pressure foot down when you tighten the tension. Tighten it a little, sew a practice seam, check to see what the stitch looks like. Tighten it a little more, sew, check, etc etc--until both top and bottom look the same--you shouldn't see much (if any) of the bobbin thread color on top of the fabric or the top thread color on the underside.

Let me know how this works for you, ok?


Robbie

Jan 25, 2010 | Singer Sewing Machines

1 Answer

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There should be a small screw on the side of your bobbin case adjust it little by little until you get the correct tension.

Jun 06, 2009 | Euro-Pro 9125 Computerized Sewing Machine

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Proper set of bobbins and tension set up vs. fabrics will sew you satified.Also incude regular maintenance cleaning of the feeds dogs with a brus,also the shuttle assembly need sometime to clean.Some threads and fabrics chips accumulates in the feed dogs and shuttles assembly.In setting up thread bobbins the thread should be clockwise direction as you pull out on slot coming out to the bobbins (as you shown in my inserted image manual).The loop thread should be propely in the sequence position same like in the image refer to it.If you use cotton/ polyester fabric in the begining of trial set tension dial to No.3 and stich to No. 8 to 12 any convenient to you Use needle No. 14 .Posible make a record if you are sewing different types of fabric mostly silk fabric is hard to sew adjusting to lower stich can posible sew satisfactory.

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I have a 26 year old Elna and this is the only weakness it has. Before sewing, try this. Turn the wheel manually and watch the upper thread pick up the bobbin thread. Pull both back to the left. Make sure they are plenty long. This helps me prevent the tangling in the dogfeed. My Elna has a universal tension on the bottom and I haven't ever had a problem with it unless the top tension is too tight.

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