Thread Tension Adjustment - Pfaff hobbylock 4764 Operating Manual

Thread tension adjustment

1. Correct tension
Top side
Underside
2. Unbalanced lower looper thread wraps
around the back.
Top side
Tighten the thread tension of the lower
looper (Dial 4) or loosen the needle thread
tension (Dial 2).
Underside
3. Needle thread unbalanced and too loose.
Tighten the needle thread tension (Dial 2)
Top side
or loosen the tension of lower looper thread
(Dial 4).
Underside
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