Table of Contents
Advertisement
6) Adjusting thread tension
The result of the needlework depends on the sewing conditions such as the sewing material, used thread and stitch length. So
please adjust as desired.
⑴ Adjusting the upper thread tension
Like in Figure 23, turning the tension adjustment nut ①
of the thread tension control assembly clockwise makes
the upper thread tension stronger and counterclockwise
makes it weaker.
Strong
Weak
①
⑶ Adjusting the thread take up tension
Adjusting the thread take up stroke
As in Figure 25, loosen the stopper fastening screw ①, and turn the thread take up lever' s spring stopper ② clockwise
to make the stroke smaller and counter clockwise to make it bigger. The thread take up stroke is normally 5~10mm.
Adjusting the thread take up tension
As in Figure 26, loosen the screw ① of the thread tension control assembly, and insert the driver into the groove ② of
the thread tension control assembly. Turn clockwise to make the spring tension stronger and counter clockwise to
make it weaker. The thread take up spring tension is normally 50~80g.
Small
- good sewing
- upper thread tension is strong while the lower thread tension is weak
- upper thread tension is weak while the lower thread tension is weak.
Weak
Strong
[Figure 23]
Big
[Figure 25]
⑵ Adjusting the lower thread tension
Like in Figure 24, turning the tension adjustment nut ①
of the hook clockwise makes the lower thread tension
stronger and counterclockwise makes it weaker.
Weak
Weak
Strong
[Figure 22]
①
Strong
[Figure 24]
[Figure 26]
17
Advertisement
Table of Contents
