Évaluations - 5, GPA: 4.2 ( )

Fabricant : Sears Taille : 2.34 mb Nom Fichier : Langue d'enseignement:

CHANGING LIGHT BULB The sewing light is located inside the face cover plate as shown. To replace the bulb, push switch to off, unplug machine and swing the face cover plate open. Push up on the bulb slightly and,turn bulb to the left. Withdraw bulb from socket. Push in new bulb and turn to the right. iCHECKING PERFORMANCE PROBLEMS I II SUSPECTED PROBLEM PROBABLE CAUSE IRREGULAR Incorrect size needle. STITCHES Improper threading. Loose upper thread tension. Pulling fabric. Light pressure on presser foot, Loose presser foot. Unevenly wound bobbin. Nicks or burrs at needleplate opening. BREAKING Pulling fabric. NEEDLE Incorrect size needle. Incorrect setting of needle. Loose presser foot. BUNCHING OF Upper and lower threads not drawn back under presser THREAD foot before starting seam. PUCKERING Incorrect thread tension(s). Light pressure on presser foot. Using two different sizes or kinds of thread, Bent or blunt needler Loose presser foot. Fabric too sheer or too soft. SKIPPING Incorrect size needle, STITCHES Certain knits and synthetics. Bent or blunt needle. Incorrect setting of needle. Tight upper thread tension. Light pressure on presser foot. BREAKING UPPER Starting to stitch too fast. THREAD Improper threading, Tight upper thread tension. Incorrect size needle. Sharp eye in needle. Nicks or burrs at needleptate opening. BREAKING BOBBIN Improper bobbin case threading. THREAD Lint in bobbin case or shuttle. FABRIC NOT Feed cover plate attached or feed dog down. MOVING Light pressure on presser foot. Thread knotted under fabric. MACHINE JAMMING, Thread caught in shuttle. KNOCKING NOISE Damaged needle. Bent needle plate. MACHINE DOES Power cord not connected, NOT SEW Power/light switch off. 22 IIII II II HIIIIIII IIIIIIIIIIIIIIIIUIIIIIIIII POSSIBLY EASY CORRECTION Choose correct size needle for thread and fabric. Rethread machine; check tension spring threading. Tighten upper thread tension. Do not pull fabric; guide it gently. Increase pressu re on presser foot. Reset presser foot. Rewind bobbin. Replace needleplate, or polish off burrs completely. Do not pull fabric; guide it gently. Choose correct size needle for thread and fabric. Reset needle. Reset presser foot. When starting a seam be sure to draw both threads under and back of presser foot about 4" and hold until a few stitches are formed. Reset thread tension(s). Increase pressure on presser foot. Upper thread and bobbin thread should be same size and kind. Insert new needle. Reset presser foot. Use underlay of tissue paper. Choose correct size needle for thread and fabric. Use "Q NEEDLE '''M and "Q FOOT"'". Insert new needle. Reset needle. Loosen upper thread tension. Increase pressure on presser foot. Start to stitch at a medium speed. Rethread machine. Loosen upper thread tension. Choose correct size needle for thread and fabric. Insert new needle. Replace needleplate, or polish off burrs completely. Check bobbin case threading. Clean bobbin case and shuttle. Remove feed cover plate or raise feed dog. Increase pressure on presser foot. Place both threads back under presser foot before beginning to stitch. Disassemble and clean shuttle. Replace needle. Replace needle plate. Check plug. Push to on position. 23 STARTING TO SEW Now that you are familiar with the controls on your machine and with the accessories pr,ovided for the machine, you are ready to start to sew with your sewing machine, Below are some good habits to follow each time you sit down to sew: 1, Check the needle-it should be straight, properly set and sharp on the point. it should be the correct size for the fabric and thread being used, Do not be afraid to change your needle frequently. Many of the new fabrics made of synthetic blends tend to dull the needles more easily than fabrics made of natural fibers, . Before placing the material on the machine, see that the ends of the threads have been drawn about 3 -4 inches to the rear of the machine, Hold on to threads during the sewing of the first 3 or4 stitches of the seam. . Test the machine stitch on a scrap of fabric you plan to use, The fabric should be double thickness, Adjust the machine for the length of stitch and tension suitable to your fabric, . Fabric should be placed under the presser foot with the bulk of the material to the left of the needle and the right edge of the material placed on the 5/8" seam marking on the needle plate when making a simple seam. 5_ Run the machine at a slow even speed. The more pressure you put on the foot control, the faster the machine will sew. 6. Fasten each seam by back tacking at the beginning and end of the seam. 7. Always finish sewing each seam with the needle at its highest point. 8. Guide the fabric gently with your hand in front of the needle. Never pull or hold the fabric in such a way, that the normal feeding is altered. , When turning the hand wheel manually, always turn it toward you. STRAIGHT STITCHING Stitch selector Pressure regulator See page 14. Presserfoot *You may use z...

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