Pfaff 145 Owner's Manual - Page 7

6. Setecting the Correct Need!e To ensure machine. a reliable stitch formation, make sure the correct needle is inserted in the Needle Systems The Pfaff 145 while Model H unison-feed machine in Models H 1 3 uses System 134-35, and Model H and H 2 4 System uses System 190 needles. 134 needles, Needle Point Styles These needles are available with different various 134 R. needle point styles are identified type points by a letter to suit different requirements. following the needle system, The e.g. Fabrics are needles are stitched with available with a round-point the following needle, identified point styles: by 14, while for leather work Lr • Narrow reverse twist point LI 4 Narrow twist point Lack - Patent leather point p • Extra-narrow wedge point PCr Extra-narrow wedge point with right-twist groove PCI Extra-narrow wedge point with left-twist groove S I Narrow cross point: for long, straight stitches. D .4 Triangular point: for short, straight stitches. Vr 0 Reverse twist spear point VI Twist spear point Rubberized fabrics and plastic materials are sewn with round-point needles. Needle and Thread Sizes The correct needle size is select the needle as thin the needle eye easily. dependent as possible, on the fabric and thread weights. For best but make sure the thread can be pulled results, through The needle size machine model. should be selected to match not only the thread weight, but also the The needle size is needle has a shaft indicated on the shank in hundredths diameter of 1/l0o0o = 1 mm. of millimeters. Thus, a No. 100 6