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- Бренд
Просмотр инструкции швейной машинки Jaguar 444, страница 15
14
Fabric puckers
Decrease
Increase
ADJUSTING BOBBIN THREAD TENSIONADJUSTING BOBBIN THREAD TENSION
ADJUSTING BOBBIN THREAD TENSIONADJUSTING BOBBIN THREAD TENSION
ADJUSTING BOBBIN THREAD TENSION
BOBBIN THREAD TENSION REQUIRES ADJUSTMENT LESS
FREQUENTLY THAN THE TOP THREAD TENSION.
If the tension is well balanced, but the fabric puckers badly, both
top and bobbin thread tensions may be too tight and have to be
adjusted.
To test if the bobbin thread tension is correct, suspend the bobbin
case by the thread and jerk it once. Correct bobbin tension will
result in the thread unwinding only one inch or two. If too loose it
will unwind continuously. If too tight the thread will not unwind at
all.
When adjusting the tension on the bobbin case, make only slight
adjustments with a screwdriver.
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