Question about Singer One Plus Computerized Sewing Machine
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
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
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?
Posted on Jan 26, 2010
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
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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