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23 –
Adjusting the thread tension
CAUTION
Turn OFF the power switch before taking out the bobbin case or replacing the
needle.
As a measure of the thread tension applied by the bobbin case, when a
bobbin (Cotton TEX40) is loaded in the bobbin case, the bobbin should
slowly drop by its own weight as illustrated in the gure.
* Adjust the needle thread tension in accordance with the bobbin thread
tension.
* The bobbin case for the TL-2200QVP is an exclusive JUKI part. Please
consult the JUKI dealers when you purchase it.
· Adjusting the bobbin case
· Proper thread tension
Improperly adjusted thread tension may cause
puckering on materials, inferior stitches, or thread
breakage.
The needle thread tension is too low
The needle thread tension is too high
Tension
adjusting screw
Increase
Decrease
Needle thread
Needle thread
Bobbin thread
Needle thread
Bobbin thread
Bobbin thread
Center of the
material
Thread tension dial
Decrease the needle
thread tension.
Increase the needle
thread tension.