SINGER WSL7234 User Manual
Page 15
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(3) Unbalanced lower looper thread wraps
round and over the face:
Tighten the thread tension of the lower looper
(Dial 4 ) or loosen the thread tension of the
upper looper (Dial 3 ).
(4) Unbalanced left needle thread too loose:
Tighten the thread tension of the left needle
(Dial T)) or loosen both looper thread (Dial ®
and "4)).
(5) Unbalanced right needle thread too loose:
Tighten the thread tension of the right needle
(Dial
2
.).