17
FOUR-THREAD USE
ADJUSTING THREAD TENSIONS
Turning tension dial to a higher number gives a tighter thread
tension. Turning tension dial to a lower number gives a looser
thread tension. The higher the number, the tighter the tension.
Test each thread tension on a scrap of the fabric you plan to use.
TWO-THREAD USE
Decrease tension
Increase tension
Left needle
thread
Right needle thread
Upper looper thread
Lower
looper
thread
Top side
Under
side
Upper looper thread
pulled to top side
Increase Upper looper thread
tension and/or decrease lower
looper tension
Fig.2
Left needle
thread
Right needle thread
Upper looper thread
Lower
looper
thread
Under
side
Top side
Lower looper thread
pulled to top side
Increase lower looper thread
tension and/or decrease upper
looper tension
Fig.3
Needle thread
pulled to top side
Lower looper
thread
Needle
thread
Top side
Under side
Increase needle thread tension
Fig.3
Left needle
thread
Right needle
thread
Upper looper
thread
Lower looper
thread
Top side
Under
side
Left needle thread loose and
visible on under side of fabric.
Increase left needle thread tension and/or
decrease either or both looper threads.
Fig.4
Left needle
thread
Right needle
thread
Upper looper thread
Lower looper
thread
Top side
Under
side
Right needle thread loose and visible
on under side of fabric.
Increase right needle thread tension.
Fig.5
Lower looper
thread
Top side
Under side
Needle
thread
Just right
Fig.1
Left needle
thread
Right needle thread
Upper looper thread
Lower
looper
thread
Top side
Under
side
Just right
Fig.1
Lower looper thread
pulled to under side
Fig.2
Top side
Under side
Lower
looper
thread
Needle
thread
Decrease needle tension