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1 Slide the flat bed attachment to the left to release it. 1 1Flat bed attachment ..With the flat bed attachment removed, free-arm sewing is possible. Note . When you are finished with free-arm sewing, install the flat bed attachment back in its original position. 2 Slide the part that you wish to sew onto the arm, and then sew from the top. Sewing with a twin needle (Option) We have designed your machine so you can sew with this needle and two top threads. You can use the same color or two different colors of thread for making decorative stitches. 1 Twin needle 2 Extra spool pin CAUTION . Use only twin needles that have been made for this machine (part code: X57521-021:2.0/75 with a 2 mm width). Other needles could break and damage the machine. . Make sure that the needle does not strike the presser foot. . Do not sew with bent needles. The needle could break and injure you. ¦ Attaching the twin needle Attach the twin needle in the same way as a single needle (see page 7–8). The flat side of the needle should face toward the back and the rounded side should face toward you. 20 SEWING BASICS SEWING BASICS ¦ Attaching the extra spool pin Insert the extra spool pin onto the end of the bobbin winder shaft. Install the second thread spool onto the extra spool pin. 1 Bobbin winder shaft 2 Extra spool pin 3 Thread spool ¦ Twin needle threading You should thread each needle separately. 1 Thread the left needle. Follow the same instructions for threading a single needle (see page 14). 2 Thread the right needle. Thread the right needle in the same way that you threaded the left needle using the thread from the spool on the extra spool pin, but do not pass the thread through the guide above the needle before you pass it through the eye of the 2 right needle. 3 2 1 1 3 1 Left needle thread passes through the needle bar thread guide 2 Right needle thread passes in front of the needle bar thread guide 3 Needle bar thread guide 3 Attach zigzag foot “J”. For details on changing the presser foot, refer to “Changing the presser foot” on page 8. CAUTION . When using the twin needle, be sure to attach zigzag foot “J”, otherwise the needle may break or the machine may be damaged. 4 Turn on the machine. CAUTION . Do not turn on the machine while pressing down the foot controller. The machine may start unexpectedly and cause personal injury or damage to the machine. 5 Select a stitch. CAUTION . After selecting a stitch, slowly turn the handwheel toward you (counterclockwise) and check that the needle does not touch the presser foot. If the needle hits the presser foot, the needle may bend or break. . The twin needle should only be used with the Straight Stitch (Center Needle Position) and the Zigzag Stitch (1.5 mm (1/16 inch) width). Do not use the twin needle with any other stitches. 6 Start sewing. For details on starting to sew, refer to “Starting sewing” on page 18. • Two lines of stitching are sewn parallel to each other. CAUTION . When changing the sewing direction, be sure to raise the needle from the fabric, and then raise the presser foot lever and turn the fabric. Otherwise the needle may break or the machine may be damaged. Thread tension The tension of the thread will affect the quality of your stitches. You may need to adjust it when you change fabric or thread. Memo . We recommend that you do a test sample on scrap of a fabric before you start to sew. ¦ Correct tension Correct tension is important as too much or too little tension will weaken your seams or cause puckers on your fabric. 2 1 1 Surface of fabric 2 Back of fabric 3 3 Upper thread 4 4 Lower thread ¦ Upper tension is too tight Loops will appear on the surface of the fabric. Note . If the bobbin thread was incorrectly threaded, the upper thread may be too tight. In this case, refer to “Lower threading” on page 13 and rethread the bobbin thread. 2 1 1 Surface of fabric 2 Back of fabric 3 Upper thread 3 5 4 Lower thread 4 5 Loops appear on surface of fabric Solution Reduce the tension by turning the upper tension control dial to a lower number. ¦ Upper tension is too loose Loops appear on the back of the fabric. Note . If the upper thread was incorrectly threaded, the upper thread may be too loose. In this case, refer to “Upper threading” on page 14 and rethread the upper thread. 5 2 1 1 Surface of fabric 2 Back of fabric 3 Upper thread 4 Lower thread 5 Loops appear on back 3 4 of fabric Solution Increase the tension by turning the upper tension control dial to a higher number. 22 BUILT-IN STITCHES BUILT-IN STITCHES 3 BUILT-IN STITCHES Straight stitching Straight stitches are used for sewing plain seams. Stitch Name Pattern Stitch Length [mm (inch)] Straight Stitch (Center Needle Position) 2 1.6 (1/16) Straight Stitch (Center Needle Position) 3 1.8 (1/16) Straight Stitch (Center Needle Position) 4 2 (1/16) Straight Stitch (Center Needle Position) 5 2.5 (3/32) Straight Stitch (Center Needle Position) 6 4 (3/16) Straight Stitch (Left Needle Position) 7 2.5 (3...