SINGER 14J250 Stylist Serger - Manual (Page 41)

40
ADJUSTING THREAD TENSIONS
Turning thread tension control dial to a higher number
gives a tighter thread tension. Turning the thread control
dial to a lower number gives a looser thread tension. The
higher the number, the tighter the tension.
Test thread tensions on a scrap of the fabric you plan to use.
TWO-THREAD USE
Just right. Lower looper thread pulled to under
side.
Fig. 1 Fig. 2 Fig. 3
Needle thread pulled to top side.
Fig. 1 Fig. 2 Fig. 3 Fig. 4 Fig. 5
FOUR-THREAD USE
Just right. Upper looper thread pulled
to under side.
Lower looper thread pulled to
top side.
Left needle thread loose
and visible on under side of
fabric.
Right needle thread loose
and visible on under side of
fabric.
Increase upper looper thread
tension and/ or decrease
lower looper tension.
Increase lower looper thread
tension and/or decrease
upper looper tension.
Increase left needle thread
tension and/or decrease either
or both looper threads.
Increase right needle thread
tension.
Decrease needle tension.
Decrease tension
Increase tension
Under side
Needle
thread
Lower
looper
thread
Needle
thread
Top side
Under side
Lower
looper
thread
Needle
thread
Top side
Under side
Lower
looper
thread
Top side
Increase needle thread tension.
Under side
Top side
Upper
looper
thread
Lower
looper
thread
Left
needle
thread
Right
needle
thread
Under side
Top side
Upper
looper
thread
Lower
looper
thread
Left
needle
thread
Right
needle
thread
Under side
Top side
Upper
looper
thread
Lower
looper
thread
Under side
Top side
Under side
Top side