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2. When the upper looper thread is
unbalanced and lies underneath the fabric:
Tighten the thread tension of the upper
looper (Dial 3) or loosen the thread tension
of the lower looper (Dial 4).
3. When the lower looper thread is
unbalanced and appears on the top-side of
the fabric:
Tighten the thread tension of the lower
looper (Dial 4) or loosen the thread tension
of the upper looper (Dial 3).
4. When the left needle thread is too loose:
Tighten the thread tension of the left needle
(Dial 1) or loosen both looper threads
(Dial 3 and 4).
5. When the right needle thread is too loose:
Tighten the thread tension of the right
needle (Dial 2).
Top side
Top side
Top side
Underside
Underside
Underside