How to adjust stitches in over-lock sawing machine?

Question:the threads are loose

Answers:
It depends on the make, but in most cases adjust your tension knobs to a higher number. Change them a half number at a time. It is also easy for the threads to come out of the tension disks. make sure the thread are firmly placed in each tension.

If the threads are loose on the outside of the stitch you may have to move the stitch wall. On most overlock the part of the overlock that hold the blades can be moved in and out.

If all else fells change the threads to a different needle or looper. Good luck