1818
1919
Bobbin thread
Weaken
strengthen
WeakenWeaken
Weaken strengthen
7. Adjusting the tension of thread
2. Reverse sewing (Fig.17)
When sewing, press down the feed lever to
perform reverse sewing, release the lever, the
forward sewing is resumed.
1. Adjust the tension of thread (Fig. 18)
(1) Adjust the tension of needle thread
Lower the presser foot and adjust the nut as
shown in the Fig 18 (left)
(2) Adjust the tension of bobbin thread
Hold the tip of bobbin thread, the proper tension is
that the bobbin case can drops slowly, Adjust the
screw as shown in the Fig.
2. Adjust the pressure of presser foot (Fig. 19)
(1) Loosen the nut
.
(2) Turn the screw to adjust the pressure
Under the condition of without slippage, the
more small the pressure of presser foot, the more
good it is.
(3) Tighten the nut .
Strengthen
1717