Bernina 880 - Lower Thread Tension

31
Sewing preparation
Lower Thread Tension
⦁
hold bobbin case 1 firmly with your left hand
⦁
with your right hand, turn the hand wheel clockwise until the setting tool can
be slid over the lug at the slider
Basic value:
 lug of the slider matches with the marking of the bobbin carrier, or
 lug is shifted 1-2 points to the right, or
 lug is shifted 1-2 points to the left
⦁
turn lug to the left with the setting tool
►
thread tension becomes looser
⦁
turn lug to the right with the setting tool
►
thread tension becomes tighter
Change per point = 4 g.
⦁
bring hook into the position shown in the illustration by turning the
handwheel clockwise in order to be able to thread it properly
1
034791.51.04_2014-02_Manual_B880_EN