NSTRUCTION BOOK -—- ‘L*”
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PFAFF !%J 1: :w NSTRUCTION BOOK -—- ‘l*” CPFAFFD® 74 INSTRUCTIONS FOREWORD ‘,. You dream has come true. You are now the proud owner of a PfaIf 74, the sewing machine which will enable you to master all ordinary sewing and darning jobs that may come up in a home. In addition, your machine can sew a large number of beautiful decorative designs completely automatically. This instruction book will help you understand the machine and give you valuabTe tips to make sewing more fun for you. Even if you are an experienced seamstress, you will find this book a valuable guide to easy sewing. Follow these simple instructions and familiarize yourself with the exclusive features of your machine. You will find sewing exciting on your easy4o-operate Pfaff 74. If you have any sewing problems, please contact your Plaff dealer. He will be glad to help you at any time. G. M. PFAFF AG Karlsruhe-Durlach Branch 20 11 12 19 13 18 14 />I 17 16 15 DR 556 1 Face cover ltl Slop ninilon knob 11 Feol doq 2 Takw-up lever 11 Motor dennaqinq 3 Bed cover 3 Thread retainer mechanism 19 Sewinq toot thumb screw 4 Spool pins 12 Bobbin winder thread 20 Liqht switch 5 Stitch width lever (A) retainer 21 Needle thread tension 6 Fashion disc 3 Reverse teed control 22 Presser bar litter 7 Needle position lever (B) 4 Stitch lenqth control 23 Needle set screw 8 Bobbin winder 15 Needle plate 21 Sewinq foot 9 Etalance wheel 16 PlaIt rotary sowina hook 2 ____________ — .-— .,.. - I — - .-.-- - -- —- ——S--.- .- t 0R050 Fundamentals of Machine Operation • Whenever you have to turn the balance wheel, turn it toward you (counter-clockwise as shown by black arrow). L • Make sure stop motion knob on the balance wheel is tightened before you begin sewing. • Never run a threaded machine unless you have fabric under the sewing foot. • Place both threads back under the sewing foot before you put fabric j into the machine. • The machine will feed the material under the sewing foot automatically. 1. All you have to do is guide the work. • Always bring take-up lever to its highest position before you begin and after you have completed a seam. Failure to observe this rule may cause the thread to slip out of the needle eye. Also, it is easier to remove the work with the take-up lever up. 3 DR 051 DR 506 Operation of Your Sewing Machine 4 Engaging the Sewing Mechanism Hold balance wheel and turn stop motion knob clockwise. Disengaging the Sewing Mechanism Hold balance wheel and turn stop motion knot, countorclockwrse (toward you). The sewing mechanism is then disengaged for bobbin winding. Eectrical hiformation Power Drive and Sewlight Push plug 1 into receptacle 2 on hack of mochine, and plug 3 at other end ol cord into the wall outint. Cord 4 leads to the foot control. t /N rootdriven machines hnvc merely a sewlight cord whose plug is pushed into the wall outlet To switch on the sewlight. push button or, face cover. Mount ririving belt Before you drop the machine reniove the belt from the stand wheel, pulling it to the right. DR 861 4 I: Motor Disengaging Mechanism Powercjr,ven machines feature a lever underneath serves the balance wheel which to swing the motor to its operative Position To lever down. After do this flick the you have completed sewing, 4 position in flick the lever to its top order to return the motor to the inoperative Position ii With the motor swung out of engagement all stands can machines set up on treadle be driven by loot power. H ‘4 Foot Control I Place the foot control under the cabinet within easy Rest the right reach of your foot foot on the control pedal the and press, The harder you faster the machine will run. press, On some sewing cabinets, the loot control the opening cord can be passed through in the bedplate extension. Sewing Speed The Pfaff rotary p hook enables you to sew a at speeds of over 1200 minute Such high speeds stitches are ideal for straight stitching Wide zigzag operations stitches and Automatic embroidery work require a which is obtained by depressing tower speed the foot control only R 7132 slightly, 5 11; %- •‘-. Utility-Stitch Fashion Discs A Ordinary zigzag seam B Elastic serpentine seam o Blindstitch seam for non-elastic materials D Scalloped seam for overcasting the edges of underwear, lingerie, handkerchiefs, doilies, etc. and obtaining an additional ornamental effect. F Elastic seam for stitching elastic materials and producing a decorative effect. H Multi-stitch zigzag seam for stitching highly elastic materials where it is essential that the individual stitches are securely anchored in the fabric, Ideally suited for the following sewing jobs: inserting patches, attaching elastic to fabric, hutt seaming two plies, etc. I Blindstitch seam for elastic fabrics. A B C D F H I 7 I 8 — -.r — - - — -r A — 00 544 Changing the Fashion Discs Always jerk stitch width lever A to 0 before you insert or remove a disc. Turn thumb nut R counter-clockwise to release the disc in the zigzag mechanism, then pull it up and take it out. Push the disc on the stud and rotate it until stud H snaps into one of the slots. Then tighten the thumb nut by turning it clockwise. Set the machine for the desired stitch width and stitch length. [R 8C2 Removing the Bobbin Case Furn the b&ane whee’ inti the need’e ha sen of the need}e hit fton end Of hod slide nd pull Lift latch k with the thumb of your left hand and pull out bobbin case with bobbin. When you release the latch, the bobbin drops out DR tfl 10 I DR iso I I 4 4 , ,,‘. , ‘:: j Winding the Bobbj f Disengage the sewing mechanisni and raise the spool pins to the vertical position, Place a spool of thread on one of the spool pins on and a bobbin the bobbin winder spindle making sure that the key at its base enters the slot in the bobbin Pass the thread through the right hand thread guide, down and around the thread retainer stud, and up to the bobbin Wind a few turns of thread on the bobbin in clockwise direction Push to the the bobbin right and start the machine The bobbin winder will stop automatically when the bobbin is full. Press the left bobbin to the and remove it from the spindle Then tighten the stop motion knob again. The amount of thread to be wound on the by bobbin is regulated turning the adjusting button accordingly, Set the button at Position A for the minimum amount of thread, or for at position B the maximum The button can be turned to the desired A position after loosening its set screw with a screwdriver. i. ‘I . -. -: -- -- — - Mercerized Needle Types of Fabrics Silk Cotton Size Recommended Needle Fine Fabrics 80 0 60 to or and Thread Sizes such as georgette, chiffon, to 000 batiste, voile, lawn, silk. 100 twist 70 The appearance of the finished seam is dependent on the correct relationship between needle, thread Lightweight Fabrics 70 A & B and fabric. Select the proper thread sizes and needles such as dress silks and cottons, 80 to twist from this chart. sheer woolens, shirting, dra- 80 peries. The same size threads should be used in the needle and on the bobbin. Some experienced seamstresses Medium Fabrics prefer a somewhat thinner bobbin thread. However, 50 such as lightweight woolens, B & c the bobbin thread never should be thicker than the muslin, brocades, to 90 madras, twist needle thread. heavy silks and rayon. 70 gabardine. For embroidery and darning work, a No. 50 thread should normally be used. Heavy Fabrics 40 such as coating, denim, cor & D to c 100 duroy, slipcover fabrics, bed twist 50 tickings, lightweight canvas. Synthetics, Rayon, Acetate Determined by 0etmmeut by including nylon, orion, dacron, weight of fabric thread size plastics, etc. 40 to 50 60 to 80 14 _.__ . * - Important Facts about Needles On PfaIf 74 sewing machines, System 130 fl, flat-shank needles are used for all ordinary sewing and embroidery work. The last column in the chart on page 14 gives you the needle size required for the material in hand. Genuine Pfaff needles, System 130 A, are available from every Pfaff dealer. Bent or blunt needles should not be used. Changing the Needle Bring needle bar tn its highest point and lower sewing foot. DR863 Loosen needle set screw a half a turn and pull old needle out of needle clamp. Make sure that the flat side of the shank faces toward the back and long groove toward you. Insert new needle into opening of needle clamp and push it up as far as it will go. Tighten needle set screw a. 15 Ii,,. Upper Threading the spool pins Raise the presser bar lifter and swing the spool pins up to the vertical position. Place spool 1 on one of the right and left and lead the thread behind both scrolls of thread retainer 2 (see ill, at top of p. 17). Seize the thread on thread into the left eyelet. of the thread retainer and pull it toward you until it snaps into the eyelets. It suffices to draw the the right so that it slips Pull the thread between any two of tension discs 3 (see ill, at bottom of p. 17) and jerk it far to the casting between properly into the slot and under the thread check spring As you do this, press the thread against spool and tension.