Adjust Thread Tension - Premier MCO-5199 Manual De Instrucciones

Adjust Thread Tension
A. Adjust the upper thread tension
Generally, the upper thread tension is
set as "4". If it is necessary to increase
tension, turn around the adjusting
button of the upper thread tension in
clockwise direction and select the
larger setting point; and vice versa.
1. It can provide ideal straight sewing
stitch;
2. If the upper thread tension is too
small, adjust the button and select the
larger value.
3. If the upper thread tension is too
large, adjust the button and select the
smaller value;
4. For the zigzag stitch, the criteria of
tension is to expose a little upper
thread from underside of cloth.
B. Adjust the lower thread (bobbin thread) tension
- Hold thread end and let bobbin case freely fall; the falling
height shall be limited within 8-10cm;
- If it can't fall down freely, rotate screw in "-" direction;
- If its falling height is too large, rotate screw in "+" direction;
Note: the Suitable tension for the upper and lower threads
is very important to the sewing; the set tension shall be
finely tuned according to the actual needle, thread and
textile. It shall be set between "3" and "5" for most of
sewing operation.
P-11