Set the yellow thread tension to a higher va
lue.
lue.
3-thread flatlock
The needle thread is too tight.
narrow and wide
Set the needle thread tension (blue) to a
Program 13 and 14
lower value.
The upper boper thread (pink) appears on
The lower looper thread (yellow) is too
the underside of the fabric,
loose.
Set the pink thread tension to a higher va
56