User manual SINGER 108U20

[. . . ] Use this machine only for its intended use as described in this manual. Use only accessories recommended by the manufacturer as contained in this manual. Never operate this machine if it has a damaged cord or plug, if it is not working properly, if it has been dropped or damaged, or dropped into water. Return the machine to the nearest authorized dealer or service center for examination, repair, electrical or mechanical adjustment. [. . . ] If you do not cut the excess thread completely before winding the bobbin, when the thread runs low it may tangle around the bobbin and cause the needle to break. 1 CAUTION Not winding the bobbin properly may 5 Trim the excess thread above the bobbin. cause the thread tension to loosen, and may break the needle. 1 6 2 Press the foot controller to start. 1 Wound evenly 2 Wound poorly 7 spinning slowly, take your foot off the foot When the bobbin seems full and begins controller. 8 to the left and remove the bobbin. Cut the thread, slide the bobbin winder shaft Note The needle bar does not move when you slide the bobbin winder shaft to the right. Immediately after winding the bobbin, it is normal to hear the sound of the clutch engaging when beginning to sew or turning the handwheel. 17 KNOWING YOUR SEWING MACHINE ---------------------------------------------------------------------------------- 1 turning the handwheel toward you Raise the needle to its highest position by (counterclockwise) and raise the presser foot lever. Lower Threading · For more details on using the quick-set bobbin, see page 19. CAUTION Not winding the bobbin properly may cause the thread tension to loosen, and may break the needle. 2 Slide the button and open the cover. 1 2 1 Cover 2 Slide button 3 the direction shown by the arrow. Put the bobbin in so the thread comes out in 1 1 Wound evenly 2 Wound poorly 2 The bobbin was designed specifically for this sewing machine. If bobbins from other models are used, the machine will not operate correctly. Use only the enclosed bobbin or bobbins of the same type (part code: SA156, SFB (XA5539-151)). Actual size 11. 5 mm (7/16 inch) This model Other models · Only use bobbins that were designed to be used with this machine. CAUTION Make sure you set the bobbin so the CAUTION Make sure you turn the power off while thread unrolls in the right direction. If the thread unrolls in the wrong direction, it may cause the thread tension to be incorrect or break the needle. · Make sure that the thread is correctly inserted through the tension-adjusting spring of the bobbin case. If you accidentally step on the foot controller and the machine starts to sew, you could be injured. 1 1 Tension-adjusting spring 18 4 down with your finger, and then pass the Hold the end of the thread, push the bobbin thread through the slit, as shown. Lower Threading (for models equipped with a quick-set bobbin) This feature is only available on certain models. CAUTION Winding the bobbin improperly may cause the thread tension to loosen, breaking the needle and resulting in injury. 5 place (see arrow 1), and then press lightly on 1 Reattach the bobbin cover. Put the left tab in the right side (see arrow 2) until the cover clicks into place. 2 1 2 1 Wound evenly 2 Wound poorly 1 · Replace the cover so that the end of the thread comes out from the left side of the cover (as shown by the line in the illustration). The bobbin was designed specifically for this sewing machine. If bobbins from other models are used, the machine will not operate correctly. Use only the enclosed bobbin or bobbins of the same type (part code: SA156, SFB (XA5539-151)). Actual size 11. 5 mm (7/16 inch) This model Other models CAUTION Be sure to turn off the power. If you accidentally step on the foot controller and the machine begins to operate, injury could result. 19 KNOWING YOUR SEWING MACHINE ---------------------------------------------------------------------------------- 1 Follow steps 1 and 2 from "Lower Threading". Put the bobbin in, feed the end of the thread 3 place (see arrow 1), and then press lightly on Reattach the bobbin cover. You can use the same color or two different colors of thread for making decorative stitches. 3 and put them toward the back of the machine Pull out about 10 cm (4 inch) of both threads under the presser foot. CAUTION Use only twin needles that have been 1 2 1 Upper thread 2 Lower thread made for this machine (part code: X57521-021). When using the twin needle, make sure the stitch width is not set above 3 since this may cause the needle to hit the needle plate and break. When using the twin needle, make sure you use the zigzag presser foot only. 24 Attaching the Twin Needle Attach the twin needle in the same way as a single needle (see page 8). The flat side of the needle should face toward the back and the rounded side should face toward you. Attaching the Extra Spool Pin Put the extra spool pin in the hole on the top of the machine. Put the second spool of thread onto the extra spool pin. 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. 1 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 Twin Needle Threading You should thread each needle separately. 1 Follow the same instructions for threading a single needle (see page 21). 2 Thread the right needle in the same way that 1 3 4 1 2 3 4 5 6 Surface of fabric Back of fabric Upper thread Lower thread Loops appear on surface of fabric Loops appear on back of fabric Thread the right needle. 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 right needle. Upper Tension is too Tight Loops will appear on the surface of the fabric. 2 3 2 1 3 5 4 5 4 3 1 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 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. 2 6 Note Models Equipped with a Needle Threader You can not use the needle threader to thread the twin needle. Using the needle threader may damage the machine. 1 3 4 5 4 3 Solution Increase the tension by turning the upper tension control dial to a higher number. 25 KNOWING YOUR SEWING MACHINE ---------------------------------------------------------------------------------- FABRIC, THREAD, AND NEEDLE COMBINATIONS Fabric Type Broadcloth Medium weight fabrics Taffeta Flannel, Gabardine Lawn, Batiste Lightweight fabrics Georgette Challis, Satin Denim Heavyweight fabrics Corduroy Tweed Stretch fabrics Jersey Tricot Thread Type Cotton Thread synthetic mercerized Silk or silk finished Cotton Thread synthetic mercerized Silk Cotton Thread synthetic mercerized Silk Thread for knits Thread synthetic mercerized Silk 50­60 Ball point needle (golden colored) 75/11­90/14 90/14­100/16 60­80 50­80 30­50 50 90/14­100/16 65/9­75/11 60­80 75/11­90/14 50­80 Size Size of Needle For top stitching 30 Memo For clear nylon thread, always use needle 90/14 - 100/16. [. . . ] Turn on the main power switch. ­ page 25 The upper thread tension is too tight. The area around the hole in the nee- Replace your retailer or the nearest Contact dle plate is scratched. (For example, you have not fitted the spool properly, or the thread has come out of the guide above the needle. ) There are knots or tangles in the thread. Only use a bobbin that has been designed for this machine. ­ page 21, 25 ­ ­ ­ page 16 Correct the upper threading. page 21 Remove any knots or tangles. [. . . ]