Pfaff perfomance 2058, Owner'S Manual, Page: 32 / 98

2:14
Correct thread tension - How to get it
Set the required amount of the needle thread tension using the
markings on the tension dial.
The normal thread tension for sewing is 4 - 5. For decorative stitches,
darning or sewing buttonholes, the normal setting should be 3.
The information system of your sewing machine gives you
recommendations on the touch screen for the correct needle thread
tension for each stitch (see ”Information in the sewing menu” page
3:15).
Thread tension
For the best stitch appearance and durability make sure the needle and
bobbin thread tensions are balanced with one another, i.e. the threads
evenly meet between the two fabric layers.
The following is valid for general sewing work:
Bobbin thread is visible on the top side of the fabric:
The needle thread tension is too tight.
The needle thread tension must be reduced.
Top thread is visible on the underside of the fabric:
The needle thread tension is too loose.
The needle thread tension must be increased.
Note: For decorative stitches and buttonholes the top thread should
be visible on the underside of the fabric.