How To Adjust Thread Tension - JUKI DX-4000QVP Instruction Manual

4.12. How to adjust thread tension

If the thread tension is not adjusted correctly, seam balance will be lost resulting in puckering or thread breakage.
Default setting is suitable for most fabrics. Adjustment may be necessary according to fabrics and sewing applications.
Thread tension can be changed even during sewing.
41
Press .
Adjust the thread tension by sliding your finger on the scale
mark part.
The thread tension can also be adjusted by turning the ad-
justing dial.
(Setting range: -5.0 - 5.0)
The needle thread
tension is decreased.
White: Initial value
Blue: Changed value
When you tap the portion above the semicircular portion
shown in the above-given figure, the setting you have done
is confirmed. Then, the screen returns to the previous
screen.
* If a new pattern is selected, the set value will be re-
turned to the initial value.
The needle thread
tension is increased.