Bernina 710 - Needles, Threads; Correct Needle;Thread Combination; Too Thin Thread or too Thick Needle; Too Thick Thread or too Fine Needle

15
Important sewing information
Needles, threads
1
2
4
5
3
Correct needle/Thread combination
When sewing, the thread should travel smoothly down the long groove on the
front of the needle.
Too thin thread or too thick needle
The thread has too much clearance in the long groove. Skipped stitches and
damage to the thread can occur.
Too thick thread or too fine needle
The thread rubs on the edges of the long groove and can get jammed. This
can cause thread breakage.
130/705 H-S/70
1 130 Shank length
2 705 Flat shank
3 H Needle scarf
4 S Needle point (here e.g. medium ball point)
5 70 Needle size (shank diameter)
Guidelines
Material and thread Needle size
Light weight materials:
Fine thread (darning thread, embroidery thread) 70-75
Medium weight materials:
Sewing thread 80-90
Heavy weight materials:
Sewing thread (quilting thread, topstitching) 100, 110, 120
033805.51.04_2014-02_Manual_B710_EN