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2500 SERIES OWNER’S GUIDECLASS WORKBOOK SECTION A LETS START WITH THE BASICS .1999 BERNINA of America page 2 SECTION A – LETS START WITH THE BASICS MACHINE SET UP • Identifying the Serger Parts – Instruction Manual pg.___ • Attaching the Foot Control and Power Cord – Instruction Manual pg.____ • Assembling the Thread Stand – Instruction Manual pg.___ • The Waste Collector • Power Switch – Instruction Manual pg.___ • Light Switch– Instruction Manual pg.___ • The Looper Cover – Instruction Manual pg.___ Loopers – what are they? – Instruction Manual pg.___ Tool Storage Safety Feature – machine won’t sew when the Cover is open • Swing Out Presser Foot – Instruction Manual pg.___ For easier threading For easier removal and insertion of Needles Safety feature – the machine won’t sew Use the Needle Stop Button to raise the Needles Raise the Presser Foot Swing the Presser Foot to the left • Free Arm Cover – Instruction Manual pg.___ For serging tubular projects Slides off to engage free arm THREADS – Instruction Manual pg.___ • Types to use • The importance of quality threads NEEDLES – Instruction Manual pg.___ • Always start with a new Needle • Match the Needle to the fabric and thread – Instruction Manual pg.___ • Change the Needle often • Using the Needle Inserter • Loosening/re-tightening Needle screws STITCH SELECTION DIAL – STITCH SELECTION PANEL • Selecting stitches • Understanding the code – Instruction Manual pg.___ .1999 BERNINA of America page 3 NEEDLE STOP BUTTON – Instruction Manual pg.___ • Needle Up - Overlock sewing • Needle Down – Cover/Chain Stitch sewing CONVERSION TO OVERLOCK SEWING • Conversion Chart – Instruction Manual pg.___ • The Converter Arm Use the Needle Stop Button to lower the Needles • Removing the Cover/Chain Stitch Extension Plate – Instruction Manual pg.___ • Installing the Knife Guard – Instruction Manual pg.___ • Raising/Lowering the Knife Arm– Instruction Manual pg.___ • Rotating the Upper Knife into Cutting Position– Instruction Manual pg.___ THREADING FOR OVERLOCK SERGING • Cone Holders and Spool Caps – Instruction Manual pg.___ Cone Holders used for large cones of serger thread Turn the Cone Holders upside down for the larger based cone threads. Spool Caps used for “normal” sewing thread and decorative thread spools • Raise the Presser Foot when threading Releases the pressure on the tension disks • The Threading Path – Instruction Manual pg.___ Use the road map inside the Looper Cover as a quick reference guide. • Threading the First Thread Guide on All Threads – Instruction Manual pg.___ Wrap the thread from left to right to lock the thread into the guide. • Threading Order First – Upper Looper This thread lies against the body of the serger. Second – Lower Looper Third – Center Needle Fourth – Left Needle • Thread the Upper Looper – Instruction Manual pg.___ • Thread the Lower Looper – Instruction Manual pg.___ The Lower Looper Auto Threader – Instruction Manual pg.___ Rotate the Handwheel to bring the Looper to the right before engaging the Looper Threader • Thread the Center Needle -– Instruction Manual pg.___ • The Needle Clamp Guide – Instruction Manual pg.___ • Optional - Using the Quick Needle Threader from a BERNINA sewing machine. • Thread the Left Needle – Instruction Manual pg.___ .1999 BERNINA of America page 4 TEST SEWING – Instruction Manual pg.___ • Lift the Toe to place the fabric under the Presser Foot • Lift the Presser Foot for thick fabric or when accurate fabric placement is needed. • Chain off the fabric. • Use the built in Thread Cutter to cut the Thread Chain. .1999 BERNINA of America page 5 TENSION THEORY A BALANCED 4-THREAD STITCH Instruction Manual pg.___ Serger Library - Tips and Tricks •Turn the Stitch Selection Dial to select “A” on the Stitch Display panel. •Thread the serger for a 4-thread Overlock stitch using thread colors to match the Color-Coded Threading Path on the serger. •Fold the fabric in half to 3” X 6”. •To begin stitching, lift the front of the Presser Foot with your right thumb and slide the fabric under the Presser Foot. Release the tip of the Presser Foot and begin serging. •Serge to the end of the fabric. •Continue stitching off the fabric until you have a 3”- 4” Thread Chain. •Locate the Thread Cutter on the left side of the serger and cut the thread chain (from right to left). •Examine the serger stitch formation and compare it to the balanced stitch graphic on page__ of the Instruction Manual. •Read the information under Fine Tuning on page__ of the Instruction Manual for information about the stitch formation and correcting any stitch irregularities. •Make any necessary tension adjustments and serge another row of stitching. •Trim and mount the sample. FABRIC: Firm fabric 6” X 6” NEEDLES: 80/12 Universal THREAD: 4 cones of serger thread (yellow,green,blue,red) PRESSER FOOT: Standard .1999 BERNINA of America page 6 ADJUSTING TENSIONS Instruction Manual pg.____ Serger Library – Tips and Tricks LOWER LOOPER •Turn the Stitch...