Singer 1 One Instruction Manual 26 - Page 47

7) 4-thread Ultra Stretch Mock Safety Stitch Tension is automatically set when seiecting the desired stitch type with the Auto Tension Dial (ATD). Tension may be fine tuned with the Fine Tuning Levers according to the following variables: 1) Type and thickness of fabric 2) Needle size 3) Size, type and fibre content of thread Correct Balance Set auto tension dial to A shown at right and test sew on a sample of your fabric. ATD:A NEEDLE POSITION SEAM WIDTH FINGER KNOB N STITCH LENGTH 2~4 SPREADER N/A Upper looper thread Right Needle thread Left needle thread Topside Lower looper thread Underside Fabric Orange Medium weight Tension Dial Blue Green Red Brown Upper looper thread How to Balance When the upper looper thread lies on the underside of the fabric; -Move the upper looper thread tension fine tuning lever (green) toward a higher position. - Or, move lower looper thread tension fine tuning lever (red) to a lower position. When the lower looper thread appears on the top of the fabric; -Move the lower looper thread tension fine tuning lever (red) toward a higher position. - Or, move the upper looper thread tension fine tuning lever (green) toward a lower position. When the left needle thread tension is too loose; -Move the needle thread tension fine tuning lever (orange) toward a higher position. Right Needle thread Left needle thread Topside Lower looper thread Underside Upper looper thread Right Needle thread Left needle thread Topside Lower looper thread Underside Upper looper thread Right Needle thread Left needle thread Topside Lower looper thread Underside Upper looper thread When the right needle thread tension is too loose; -Move the right needle thread tension fine tuning lever (blue) toward a higher position. Right Needle thread Left needle thread Topside Lower looper thread Underside 46