Stitch Selector Table; Tension Adjustments; Upper Thread Tension; Lower Thread Tension - Simplicity DenimStar sw210 Instruction Manual & Reference Manual

SIMPLICITY CUSTOM STITCH SELECTION
R S
ANGE TITCH
N A Straight
N A Zigzag
N B Knit blindhem
N C 3-step zigzag
N D Double action
N E Woven blind hem
N F,G,H,I Decorative
N J,K,L Buttonhole
S A Triple stretch straight
S A Rick rack
S B Arrowhead
S C Honeycomb
S D Overcasting
S E Elastic overlock
S F,G,H,I Decorative

TENSION ADJUSTMENTS

The upper thread tension dial controls the amount of needle
thread delivered to the bobbin case. Most thread tension
adjustments should be made using the upper thread ten-
sion dial. In some cases, the lower thread tension on the
bobbin case may need to be adjusted for specialty
sewing techniques.

UPPER THREAD TENSION

The numbers 0-9 on the dial represent upper thread
tension settings. The higher the number, the stronger the
upper tension. Tension settings between 3-5 are most
commonly used [Fig. 1]. In a balanced stitch, needle
thread and bobbin thread interlock in the center of the
two fabric layers [Fig. 2]. If needed, adjust an unbalanced
stitch by turning the dial until the new setting is aligned
with the indicator line on the machine [Fig. 1].
If the fabric gathers or the threads break, the upper thread
tension is too tight [Fig. 3]. Loosen the tension by moving
the dial to a lower number.
If loops form on the underside of the seam then the
upper tension is too loose [Fig. 4]. Tighten the upper ten-
sion by turning the dial to a higher number.

LOWER THREAD TENSION

The lower thread tension can be adjusted by turning the
screw on the bobbin case slightly to the right (clockwise)
to increase the tension [Fig. 5]. Turn the tension slightly to
the left (counterclockwise) to decrease the tension [Fig. 6].
10
S
TITCH
P
ATTERN
WIDTH
0
0-5
3-5
3-5
3-5
3-5
3-5
3-5
0
2-5
3-5
3-5
3-5
3-5
3-5
Fig. 1
Upper thread too tight
Fig. 3
Increase tension
Fig. 5
S P
TITCH RESSER
LENGTH FOOT
0-4 All feet
0-4 All-purpose
4 Blind hem
3 All-purpose
3-4 All-purpose
4 Blind hem
1-4 Open toe
0.5-1 Buttonhole
3-4 All-purpose
2-4 All-purpose
3 All-purpose
2-4 All-purpose
3-4 Overcast
3-4 All-purpose
2-4 Open toe
Fig. 2
Upper thread too loose
Fig. 4
Decrease tension
Fig. 6
D
ROP
FEED
Up/Down
Up/Down
Up
Up
Up
Up
Up
Up
Up
Up
Up
Up
Up
Up
Up