Top thread is loose, how to tighten on singer 2250

SOURCE: thread on bottom, bobbin thread loose

Sounds as though you've misthreaded the upper tension. The best way to verify this would be to thread your machine, lower the presser foot on to the material. Now try pulling the thread through the needle. (Assuming your upper tension dial is set to a number greater than one). You should feel resistance. Should you not feel resistance, rethread your upper tension.

SOURCE: Singer Simple bottom thread is loose

hi there
raise pressure foot up thread making sure thread passes between thread guide this should solve problem never alter bobbin tension,
mary h

Richard

• 47 Answers
• Posted on Jul 07, 2009

SOURCE: Top thread is loose

Your needle thread tension is too tight or the bobbin tension is too loose. If it is the latter try turning the bobbin case tension adjusting screw clockwise abot a full revolution.
If that does not work there is more than likely a bit of lint behind the tension spring, so carefully remove it and clean it out.

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

SOURCE: Singer Futura II - Model 920

This happens when we forget to have the presser foot raised when threading.

What looks like the fault of the bobbin is actually the top thread not forming a tight stitch with the bobbin thread.

When the machine is threaded with the foot down, the tension control is closed and the thread cannot enter the control as it should. When you begin to sew, the tension control cannot do it's job.

If the machine is already threaded, lift the presser foot and pull about 10" of thread from the needle, or re-thread the machine with the presser foot up.