T H R E A D T E N S I O; Upper Thread Tension; Lower Thread Tension - Brother VX880 How To Use And Enjoy Manual

I
Thread Tension
I
I t
is
important that tension of upper and lower threads be equal to prevent puckering of
material or other problems.
I t is recommended that a test sample be made before starting t o sew.
UPPER THREAD TENSION
To regulate upper thread tension, merely
turn thread tension dial with your fingers
after lowering the presser foot.
THE HIGHER THE NUMBER, THE
TIGHTER THE TENSION.
To increase tension: Turn dial to right to
higher number.
To decrease tension: Turn dial to left to
lower number.
NOTE: When sewing the zigzag stitch,
it
requires less upper tension than
straight stitch.
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LOWER THREAD TENSION
Tension
Lower thread tenion has been already
adjusted for general use at the factory
before shipment, but when sewing extreme-
ly thin or heavy material,
it
also requires
adjusting the lower thread tension.
To regulate the lower thread tension, turn
small screw on the tension spring of the
bobbin case with the small screw driver.
To increase tension: Turn the small screw
clockwise very slight-
ly.
To decrease tension: Turn the screw coun-
terclockwise very
slightly.