Pfaff Tipmatic 1035 Owner's Manual - Page 14

Upper tension 112 N = Setting mark. The normal tension setting is in the white range between 3 and 5. The higher the number, the tighter the tension. Lower tension O = Regulating screw. Turn it left for a looser tension, or right for a tighter tension. P = Both tensions are correct. Q = Upper tension too loose or lower tension too tight. R = Lower tension too loose or upper tension too tight. The correct lower tension Let the bobbin case with a full bobbin hang down freely by the thread. It must not slide down by its own weight, but should gradually move downwards when you jerk your hand upwards lightly. Once the lower tension has been set correctly, only the upper thread tension should be adjusted. 4 j - 4 I. Q-' -'I 10