7-10
2-thread fl atlock, narrow and wide
Stitch programs 05 and 06
If all the thread tensions are set correctly, 
the looper and needle threads will meet on 
the edge of the fabric.
The needle thread is too loose or the lower 
looper thread (yellow) is too tight.
Adjust the corresponding needle thread 
tension to a higher setting and/or change 
the yellow thread tension to a lower 
setting.
The lower looper thread (yellow) is too 
loose and/or the needle thread is too tight.
Adjust the yellow thread tension to 
a higher setting and/or change the 
corresponding needle thread tension to a 
lower setting.
Note: To sew the 2-thread 
fl atlock attach the converter as 
described on page 2-29.