Thread Tension - DURKOPP ADLER 670 Operating Instructions Manual

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4.7

Thread tension

Together with the hook thread tension, the needle thread tension
influences the final seam pattern.
The needle thread tension is defined by the pre-tensioner, the
main tensioner and the additional tensioner.
Proper setting
If the tension of needle thread and hook thread is identical, the
thread interlacing lies in the middle of the sewing material.
Set the needle thread tension so that the desired seam pattern is
achieved with the lowest possible tension.
Fig. 12: Thread tension
①
②
③
(1) - Identical needle thread and hook thread tension
(2) - Hook thread tension higher than needle thread tension
(3) - Needle thread tension higher than hook thread tension
Operating Instructions 670/680 - 00.0 - 01/2017
Operation
DA150018_V52_XX