Viking Huskylock 936 Manuale Utente
2
3
4
1
a
—30—
Wrong side
Right side
Wrong side
Right side
3-thread stitch
Correct tension
The needle thread lies fl at and straight, to the
left, and locks with the upper looper thread on
the top and the lower looper thread on the bot-
tom side of the fabric.
Unbalanced lower looper thread is wrapped
around and over the top side
Increase the thread tension of the lower looper
(dial
④
) or reduce the thread tension of the up-
per looper thread (dial
➂
).