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Main tension
The main tension (2) determines the normal thread tension
during sewing.
Proper setting
The main tension (2) should be adjusted as low as possible.
The thread interlace should be exactly in the middle of the sewing
material.
Disturbance
Due to excessively high tension:
• Ruffing on the seam
• Thread breaking
• The needle thread pops out of the tensioning plate
Additional tension
The additional tension (1) increases the needle thread tension
during sewing, e.g. for thickened seams.
Proper setting
The additional tension (1) must always be adjusted lower than
the main tension (2).
Disturbance
Due to excessively high tension:
• Ruffing on the seam
• Thread breaking
• The needle thread pops out of the tensioning plate
To open and close the additional tension:
1.
To open the additional tension (1), press the lever (3) into
the tension.
2.
To close the additional tension (1), press the lever (3) out
of the tension.
Operating Instructions 969 PURE - 00.0 - 04/2020
Operation
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