
S-6200A
10. THREAD TENSION
45
10-2. Adjusting the presser foot pressure
Correct stitches
Upper thread
Skipped stitches occur
Increase the pressure.
Uneven stitch length
Stitches are puckered
Decrease the pressure.
The presser foot pressure should be as weak as possible,
but strong enough so that the material does not slip.
1. Loosen the adjusting nut (1).
2. Turn the presser adjusting screw (2) to adjust the presser
foot pressure.
3. Tighten the adjusting nut (1).
10-3. Adjusting the trailing length after thread trimming
At the time of thread trimming, the thread tension is
loosened and tension is applied by the pretension (1) only.
The standard trailing length for the upper thread is 35-40
mm.
If the tension of the pretension (1) is increased, the lengths
of the threads trailing from the needle tips will be reduced;
if the tension is reduced, the lengths will be increased.
Adjust by turning the pretension (1).
3886M
0894M
0895M
0896M
0897M
Becomes stronger
Becomes weaker
Longer
Shorter
1977B
1978B