Trying to sew...my thread undearneath is loose and loops...help?

Question

I have a Singer model 4562. When sewing the seam on top looks fine but on the underside the seam is way to loose and loops like crazy. Can anyone help me out?

Answer 1

Try re- threading your machine. If you are sewing a really stretchy fabric you might need a special needle. Maybe you need to adjust your tension.

Answer 2

Adjust the tension and try out a few practice runs to get the correct tension.

Answer 3

Take Kay's answer.  It's the top tension

Answer 4

"rowlfe" is partly Right. The tension-er is off but, if it's the bottom thread like you say, then it's the bobbin tension. Take the bobbin out, there's a real small s***w on this part. If you hold your thread and give the bobbin a small jerk about one inch should unravel, if not, then tighten this s***w about 1/4 turn. Then go from there.

     Most evryones problems are the tensions, a look at the thread could help, making sure the threads are the same size.

Answer 5

Your top tension is too loose. There are two tensioners, one in the bobbin and one near to top above the needle. If the bobbin tension was too loose, you would have the opposite effect. The top tensioner is a pair of washers which are spring loaded to squeeze the thread a bit. The thread passes between the washers so they squeeze the thread and provide some resistance to pulling the thread through. There is a thumbscrew which when turned will apply more or less pressure to the washers. Either the tension is way too loose, or you have incorrectly threaded the needle with the wrong path. The path should be from the spool through a stationary guide through the tensioner, through a stationary guide, through the moving guide (which follows the motion of the needle) through another stationary guide and then finally through the eye of the needle. The idea is the tensioner holds the thread so it does not unspool any more as the moving guide pulls the loop tight on the upstroke. If the tensioner is too loose, when the guide tries to pull the loop tight, it actually unspools thread from the spool leaving the loop loose under the fabric. The thread pulls from the point of least resistance and the tensioner has to be tight enough to so that it is easier to pull the lower loop tight than to unspool more thread.

Answer 6

If there are loops on the bottom of a seam, the top thread tension is loose.  If there are loops on the upper side, the bobbin thread is loose. (and if you don't believe me, try threading up with a different color in top and bobbin).

Most likely, you've threaded the top improperly -- the presser foot needs to be up when you're putting the thread through the top tension -- that unloads the tension disks and allows the thread to enter the tension.  Once you've got the machine threaded past the takeup lever (the thingie that bobs up and down in time with the needle), you can lower the foot and finish threading the needle for a little more finger room.  Upper tension setting is normally "4" for standard thread.

If you've threaded with the tension open and pulled the thread into the tension and you're still getting loops on the bottom, even if you've adjusted the tension settings, the two next most likely explanations are that you've got dirt or lint jammed in the upper tension (moisten a fold of cotton fabric with rubbing alcohol and "floss" the upper tension) or you've used mismatched thread in top and bobbin.