To Regulate Tension Of Upper Thread - New Home 535 Manual Instruction

TO REGULATE TENSION OF UPPER THREAD

For ordinary stitching the tension of the upper and lower threads
should be set so as to lock both threads in the centre of the
fabric. (A)
If the tension of the upprr thread is too strong, the upper thread
will lie straight along the upper surface of the fabric as shown
in (B).
In such case, turn the thread tension dial knob anti-clockwise or
to the smaller number.
If the tension of the upper thread is too weak, the lower thread
will lie straight along the underside of the fabric as shown in (C).
In such case turn the thread tension dial knob clockwise or to the
larger number.
(Usually No. 5 on top will be found to be correct for straight
sewing and No. 3 on top for zigzag sewing.)