Thread Tension - Husqvarna Viking Prelude 350 User Manual

Thread tension

You can adjust the thread tension by turning the
dial which is numbered. The higher the number
the tighter the tension. Normal thread tension is
number 4.
When sewing buttonholes and decorative stitches
set thread tension to number 3.
When topstitching with a coarse thread in thick
fabric, increase the tension to 7-9.
Correct and Incorrect Thread Tension
To understand the correct thread
tension, sew a few sample stitches at
different settings.
1. Begin with a tension that is too loose, i.e. set
at "1". The lower thread will lie straight and
the upper thread will be drawn down on the
underside.
2. If you set the tension at the highest number,
the opposite will occur, and the seam may
pucker.
3. The correct thread tension is provided when
the threads interlock in the middle of both
layers of material or, in the case of decorative
stitches, on the underside.
Make a few tests on a scrap piece of the material
you are going to sew and check the tension.
Procedures
1.
2.
3.
9