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Sailrite thread tension loops fabric - Sailrite Ultrafeed LSZ-1 Mechanical Sewing Machine

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How do i adjust my consew 105 so the stitches do not loop on the bottom?


If the thread is looping under the fabric, it is a top tension issue.

Make sure you are using a new needle and that the needle/thread/fabric are compatible.

Verify it is threaded correctly and that the thread is firmly seated in the tension disks.

If the top thread is still looping under the fabric, then the upper tension is too loose.

...

Nov 07, 2016 | Consew Sewing Machines

1 Answer

Most of the time the bobbin stitch is correct. Occasionally there is a loop in the bobbin thread. Any suggestions as to what this could be?


Is it actually the bobbin thread that loops or is the loop appearing on the underside of the fabric as you stitch? If it is a loop under the fabric, that's usually an indication it is an upper thread issue. Thread irregularities that appear on the topside of the fabric are generally bobbin related.

First thing to try is installing a brand new needle. Verify it is the correct needle for the fabric and thread being used.
All About Needles
Sometimes, the fabric being stitched will "grab" the thread and hold it for a second before releasing and will cause a loop. In this case, a needle with a larger scarf and eye may be helpful.

You might also open the upper tension as much as possible, RAISE the presser foot and run a piece of UNwaxed dental floss through the tension disk a few times to clear out any gunk that may be stuck there. A piece of pearl cotton dipped in rubbing alcohol and squeezed moist/dry will also work.

Remove the upper thread. RAISE the presser foot and rethread the top thread from the beginning. Use only fresh, good quality thread--NO old or bargain bin variety! Try using the same thread in the top and bobbin. Make sure the thread is firmly seated in the tension disk and the thread path is correct. Check that there are no burrs or snags in the thread path that could be catching the upper thread. Especially, check that the thread is not catching on the spool "slit" that holds the thread when in storage. Every time the thread navigates around the thread spool, it could be catching on that slit just enough to cause a loop.

Try changing the bobbin. There could be something amiss with the current bobbin--could be nicked or could even be the wrong bobbin for the machine. Also, make sure the bobbin is loaded and turning the correct direction in the machine.

Set the upper tension to the midway point. This is usually the starting point, although it will probably require some tweaking. Test your stitch and adjust the tension so the upper and bobbin threads meet in the middle of the fabric. Neither thread should dominate one side of the fabric or the other.

Understanding Thread Tension Threads

Last thing to try is a different presser foot.

If you still have the intermittent loop, you might want to take it for service. Could be a problem within the tension disk.

Nov 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

1 Answer

How to fix tension? Janome 10000. Top thread looping on the bottom of the fabric.


Generally speaking, if there is thread looping on the bottom of the fabric the upper tension is incorrect or the tension disks are not engaged. Try completely untreading and re thread the machine with the pressure foot up. Then lower the pressure foot and see if you have tension when pulling gently on the thread. Try again.

Mar 07, 2015 | Janome Memory Craft 10000

1 Answer

Fabric bunching sailrite


try easing both bobbin and top thread tensions

Dec 25, 2013 | Sailrite Ultrafeed LSZ-1 Mechanical Sewing...

1 Answer

Lower thread too loose


Big loops on the bottom of the fabric is NOT the lower thread. First make sure that your upper thread is correctly threaded with the presser foot in the UP position. Do a test seem. If you still have loops tighten the UPPER tension knob. Do a test seem.

If after several upper tension changes do nothing. Remove the upper thread and take some rather rough sturdy fabric like light weight denim and "floss" where the tension discs are then rethread... and try again.

Oct 14, 2012 | Brother XL-2600

1 Answer

Needle thread tension- huge loops


Put the tension settings back to the mfg's suggested setting.

Re-thread the machine with the presser foot up and there will be no more loops.

Mar 03, 2010 | Elna 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

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