Pfaff coverlock 3.0 Owner's Manual - Page 34

Thread tension Àne tuning Thread tension is automatically set when selecting a stitch type with the Auto Tension Dial (ATD), but it may have to be Àne tuned with the Àne tuning levers depending on: • Type and thickness of the fabric • Needle size • Size, type and Àbre content of the thread 2-thread overlock When the lower looper thread lies on the underside of the fabric When the needle thread tension is too loose Move the lower looper thread tension Àne tuning lever (yellow) toward a higher position. Or, move the needle thread tension Àne tuning lever (blue or green) toward a lower position. Move the needle thread tension Àne tuning lever (blue or green) toward a higher position. Or, move the lower looper thread tension Àne tuning lever (yellow) toward a lower position. 2-thread overlock, wrap When the lower looper thread tension is too tight or needle thread tension is too loose When the lower looper thread tension is too loose Move the lower looper thread tension Àne tuning lever (yellow) toward a lower position. Or, move the needle thread tension Àne tuning lever (blue or green) toward a higher position. Move the lower looper thread tension Àne tuning lever (yellow) toward a higher position. 3-thread Áatlock stitch When the lower looper thread tension is too loose When the upper looper thread tension is too loose Move the lower looper thread tension Àne tuning lever (yellow) toward a higher position. Or, move the needle thread tension Àne tuning lever (blue or green) toward a lower position. Move the upper looper thread tension Àne tuning lever (red) toward a higher position. Or, move the needle thread tension Àne tuning lever (blue or green) toward a lower position. When the needle thread tension is too loose Move the needle thread tension Àne tuning lever (blue or green) toward a higher position. Or, move the upper looper thread tension Àne tuning lever (red) toward a lower position. 3-thread overlock When the upper looper thread lies on the underside of the fabric When the lower looper thread appears on the top of the fabric When the needle thread is too loose Move the upper looper thread tension Àne tuning lever (red) to a higher position. Or, move the lower looper thread tension Àne tuning lever (yellow) to a lower position. Move the lower looper thread tension Àne tuning lever (yellow) toward a higher position. Or, move the upper looper thread tension Àne tuning lever (red) to a lower position. Move the needle tension Àne tuning lever (blue or green) to a higher position. 34 Stitch adjustments