JUKI TL-18QVP Manual De Instrucciones página 22

Adjusting the thread tension
CAUTION:
The standard bobbin thread tension is such that
the bobbin case goes down slowly when you hold
the open end of the bobbin thread and shake it as
shown at right. (The count of the thread is #50.)
* Adjust the needle thread tension in accordance
with the bobbin thread tension.
* The bobbin case is an exclusive JUKI part. Please
consult the JUKI dealers when you purchase it.
■ Proper thread tension
Improperly adjusted thread tension may
cause puckering on materials, inferior
stitches, or thread breakage.
Center of
the material
20
Turn OFF the power switch when taking out the bobbin case.
Needle thread
Bobbin thread
· Adjusting the bobbin case
The needle thread tension is too low
Needle thread
Bobbin
thread
The needle thread tension is too high
Needle thread
Bobbin
thread
Tension ad-
Increase
justing screw
Thread tension
dial
Increase the
needle thread
tension.
Thread tension
dial
Decrease the
needle thread
tension.
Decrease