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Simple, up-to-date sewing Congratulations! You have bought a high-quality product that provides unique advantages. Your new hobbylock 756 can take any material in its stride and will sew, trim and neaten up for you in one ope ion. Your PFAFF hobbylock features the very latest in design and technology, and it is just as easy to use as this instruction manual is to follow. If you now take a bit of time to study the instruction manual nothing can go amiss.
___________________ IMPORTANT SAFETY INSTRUCTIONS For the United States only This sewing machine is designed and manufactured for HOUSHOLD use only. When you use an electric appliance, the following basic safety precautions should always be adhered to: Read all instructions before using this sewing machine. DANGER : To reduce the risk of electric shock: 1. The sewing machine should never be left unattended when plugged in.
.1 Notes on safety Notes on safety for domestic sewing machi nes according to EN 60335-2-28 bzw. IEC 335-2-28. 1. The user must exercise adequate caution with regard to the up and down move ment of the needle and keep the sewing area under constant observation while working. I Environment The recommended environment is: Ambient temperature 100 C to 40° C Humidity 20 % to 80 % 2.
CONTENTS Page 1 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 4 J 15. 16. 17.
1. ACCESSORIES ( ( Needle set tal) Screwdriver (sheet me ® © © Tweezers plate Rolled hemming throat Hex-head wrench fl 1 - 0 UJ ) Sciewdiver (small si7e 1 I L accessories. See page 44 for optional V N 2. NEEDLE INFORMATIO t shank industrial needle This overlock uses a fla sibility of inserting the that eliminates the pos needle backwards. a standard household Do not attempt to use any size or type in this sewing machine needle of overlock.
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HOW TO OPEN LOOPER COVER 4. Push the cover to the right as far as it will go. Pull cover down toward you. () * * Caution: Be sure looper cover is closed when sewing. PRINCIPAL PARTS BEHIND LOOPER COVER 5. () Upper looper () Movable upper knife ® Presser foot ® Stationary lower knife ® Lower looper 6. PREPARATION PRIOR TO SEWING Connect the controller/electric plug tD to the machine receptacle ().
Warning: 7. * Be sure that the electrical voltage of the elect ric outlet (wall receptacle) is the same as the rated voltage of the motor. * Handle the foot controller with care and avoi d dropping it on the floor. Be sure not to place anything on top of it when not in use. * Disconnect the powerline plug from the electric outlet when changing needles, press er feet or throat plates, or when leaving the machine unattended.
RT HOW TO REMOVE AND INSE NEEDLES 8. • TO REMOVE NEEDLE (S) ine from the Be sure to disconnect the mach . le(s) need electric outlet before removing * the needle Turn the hand wheel toward you until is at its highest position. * needle set screw Loosen, but do not remove the with the small screwdriver. left needle set screw right needle set screw © * — — Remove the needle(s). * • TO INSERT NEEDLE (S) ce to the back.
9 HOW TO REMOVE AND REPLACE CLOTH PLATE * Remove cloth plate for free arm sewing (tublar work) * To remove, pull cloth plate to the left while pressing the push botton on underside of cloth plate upward. * To replace, guide latch on cloth plate into hole in cylinder cover and push cloth plate to the right as far as it will go. :10. •1 HOWTO REMOVEAND REPLACE CYLINDER COVER * Removing the cylinder cover exposes the lower looper for easy threading and cleaning of the machine.
11. THREADING THE MACHINE r • THREADING DIAGRAM * A color coded threading diagram is located inside the loopei cover for quick refcrcnce. * Thread the machine in the order shown.
Pass thread from back to the front through the thread guide D * F F Pass thread through hole @ from front to back, then to the front through right slot as shown. * F While holding thread with finger, pass it between the tension discs and pull thread down to make certain it is properly located in between the tension discs. * I I * * Thread the looper area of the machine following the orange color coded thread guides. (®- ®) Thread the hole in the upper looper from front to back ®.
(2) Threading the Lower Looper (Yellow) Thread the lower looper as indicated D * gh the Pass thread from back to the front throu thread guide * to back, Pass thread through hole J from front shown. as slot right gh throu then to the front * * 12 While holding thread with finger, pass it between the tension discs and pull thread down to make certain it is properly located in between the tension discs.
ine following Thread the looper area of the mach es guid d ®®. threa d the yellow color code * I: I expose the Remove the cylinder cover (page 9) to . lower looper for threading * the lower Turn the hand wheel toward you until looper is at the far left. * I 10 cm (3 Pull 7.5 e (ij. guid thread * j 4 inches) of thread through of the lower Insert the thread through the left end looper.® * Drop the thread. * the accessory set Note: Use the tweezers that are in to aid in threading the looper.
(3) Threading the Right Needle (Green) Thread the right needle as indicated * I (iJ--®. — . \ L_—4 1• * * 14 — Pass thread from back to the front through the thread guide D * A —- Pass thread through hole ® from front to back, then to the front through right slot as shown. While holding thread with finger, pass it between the tension discs and pull thread down to make certain it is properly located in between the tension discs.
* s® Continue to thread point thread through upper Be sure to pass the Note: * * —®. guide(). thread path of the thread right needle ®. Thread the eye of the the easier to thread when The needle may be n no d and placed in the upper knife is disengage e 23). operating position. (see pag before sewing. Be sure to engage knife r back, under the presse Place the thread to the foot.
(4) Threading the Left Needle (Blue) * Thread the left needle as indicated * Pass thread from back to the front through the thread guide * I from front to back, Pass thread through hole slot as shown. right through front the then to °Tfl * While holding thread with finger, pass it between the tension discs and pull thread down to make certain it is properly located in between the tension discs. J 16 (.
Continue to thread points * ®—®. Note: Be sure to pass the thread through lower thread path of the thread guideC. * * Thread the eye of the left needle. ® The needle may be easier to thread when the upper knife is disengaged and placed in the non operating position (see page 17). Be sure to engage knife before sewing. — * Place the thread to the back, under the presser foot. • IMPORTANT THREADiNG INFORMATION * I .
12. CHAINING OFF AND TEST SEWING * When the machine is completely threaded, bring all of the threads over the throat plate and slightly to the left under the presser foot. * Hold the threads and apply a slight tension. * Turn the hand wheel toward you 2 or 3 complete turns to start the thread chain. * Lower presser foot. * Continue holding the chain and press on the foot control until the chain is 5 7.5 cm (2 3 inches) in length.
13. BASIC STITCH TYPES • 4 THREAD OVERLOCK MOCK SAFETY STITCH * uses This machine is a four-thread overlock that 5.7mm a two needles and two loopers to create stitch. (7/32 inch) wide four-thread mock safety • WIDE 3 THREAD OVER LOCK STITCH * When the right needle is removed a wide 5.7mm (7/32 inch) three-thread stitch is sewn. 4 • NARROW 3 THREAD OVERLOCK STITCH When the left needle is removed a narrow 3.5mm (9/64 inch) wide three-thread stitch is sewn.
• SUGGESTED TENSION SETTINGS FOR 4 THREAD OVERLOCK MOCK SAFETY STITCH Note: Tension Dial Light weight These are suggested tension settings only.
TINGS FOR • SUGGESTED TENSION SET TCH THE 3 THREAD OVER LOCK STI * Tension Dial Fabric Note: * lock Stitch Left Needle/Wide 3 Thread Over settings only. These are suggested tension by Tension settings are effected ric fab of ss kne thic and e 1) Typ 2) Needle size content of thread. 3) Size, type and fiber Light weight Blue 3 : Medium weight Heavy weight Orange Yellow Green 5 1 2 1 2 1.5 2.
HOW TO CHANGE THREADS/TIE ON METHOD 15. To change thread type or color, clip thread near the spool. * * Place new thread on stand. * Tie new thread and old thread ends together. 3 cm (1 inch) length. If Clip thread tails to 2 clipped too short, threads may come untied. * 22 * Firmly pull both thread to test knot security. * Note tension dial settings. * Turn the tension dials down until the dial stops.
machine one at a Pull the threads through the time. check for tangles on If threads do not pull easily, er thread stand. thread guides or looping und * * 1’ ugh the needle, STOP When pulling thread thro the needle. when the knot is in front of it through the needle. Cut the thread, and insert vious settings. Return tension dials to pre * * * STITCH HOW TO ADJUST THE LENGTH 16. be set on the 3mm The stitch length dial should ing conditions.
• TO PLACE MOVABLE KNIFE IN WORKING POSITION Open looper cover and push the movable knife holder to the right as far as it will go. Turn the knob up and toward you until the knife clicks into the operating position. * * [ Caution: Always close looper cover before operating machine. 18. SEAM GUIDE LINES When the left needle is inserted, the thick line on the left of the looper cover is 16.0mm (5/8 inch). * * When sewing with the right needle, the thick line on the left of the looper cover is 14.
OVEREDGE HOW TO ADJUST THE SEAM WIDTH 9. four-thread stitch The machine is set to sew the tion stitch at a posi le and three-thread left need ). width of 5.7mm (7/32 inch * e-thread right The machine is set to sew the thre of 3.5mm (9/64 needle position stitch at a width inch). * Left need’e Left need’e be increased to The 5.7mm (7/32 inch) setting can m (9/64 inch) 7.2mm (9/32 inch) and the 3.5m (13/64 inch) by setting can be increased to 5mm adjusting the stationary knife.
HOW TO SEW A ROLLED HEM 20. * * * and overedging Rolled hemming is done by rolling the fabric edge. organdy, Light weight fabrics such as lawn, you, crepe, etc. perform the best. heavy or stiff Rolled hemming is not suited for fabrics. 1F MACHINE SET UP 0 the Be sure the machine is disconnected from power source. Remove the left needle. the right Insert a #2054 size #10 or #14 needle in * * * needle position. le Turn the hand wheel toward you until the need is at its highest position.
Set the stitch length dial to “2—F” and a fine seam will be sewn. * This machine can sew two types of rolled hems. * • SUGGESTED TENSION SETTINGS FOR STANDARD ROLLED HEM * Always sew a test sample and adjust tension balance if neccessary. Underside Topside Adjust tension balance the same as for a narrow three—thread overlock stitch (page 21). * Tension Dial Blue Green Orange Yellow 3.5 3.5 2.
ead is too loose When the lower looper thr thread tension dial per Turn the lower loo ber. (yellow) toward a higher num ead tension dial thr per loo Or, turn the upper . (orange) to a lower number * — I — Topside loose When the needle thread is too n dial (green) to Turn the needle thread tensio a higher number. * — \ Uppee thread Topside RMATION ABOUT • ADDITIONAL INFO ROLLED HEMMING to in when you begin sewing * Hold the thread cha o the seam.
21. STITCH VARIATIONS AND SEWING TECHNIQUES • HOW TO SEW A FLATLOCK DECORATIVE SEAM * A flatlock stitch is achieved by adjusting the tension of the three-thread overlock stitch, sewing the seam and pulling the fabric apart to flatten the seam. * The flatlock stitch can be used as a construction and decorative stitch or for ornamentation only. (1) MachineSetUp * Remove the left or right needle. * Begin with the machine threaded and tension balanced for the three-thread overlock stitch (page 21).
the Pull on opposite sides of the seam to pull stitches flat. * (3) Decorative Flatlocking Place the movable uper knife in the nonworking position (page 23). The fabric is not trimmed on this stitch. * * Fold fabric wrong sides together. Position the fabric so the seam is sewn with part of the stitch extending off the fabric. * Pull on opposite sides of the stitch to flatten.
• HOW TO SEW AN OVER LOCK BLIND HEM The excess fabric is trimmed and the hem is sewn and the raw edges are overlocked in one operation. The overlock blind hem is best suited for sewing knit wear. It provides a durable finish that is almost invisible. Remove the left needle and adjust machine for a narrow three-thread overlock stitch. Note: The three-thread flatlock stitch can also be used. * Set the stitch length dial at 4 5.
Fold the fabric with the wrong sides together and sew. * Press the pin tucks in the same direction. * • TURNING SQUARE CORNERS (1) Outside Corner from * Cut out approximately 2 cm (51/64 inch) edge. ge seam the corner, in line with the overed * Sew one stitch beyond point (A) and stop. * Raise needle and presser foot. Pull the fabric to the rear of the machine just enough to release the thread caught on the finger of the throat plate. * Note: Presser foot has been removed to show detail.
Place movable upper knife in nonoperating posi tion (page 23). * Stitch on cut edge of fabric. Stop sewing before you reach the corner and fold the fabric to the left to straighten the corner. * * Continue to sew slowly holding the fabric edge in a straight line moving the fold as you sew. * • PIN PLACEMENT I. Insert pins to the left of the presser foot. The pins will be easy to remove and are away from the cut ting action of the knives.
• APPLYING ELASTIC t Place the movable upper knife in the nonopera 23) ing position. (page * Divide the elastic and the area where the elastic a will be attached into quarters and mark with watersoluble marker. * g Lay elastic on the wrong side of the fabric makin sure elastic and fabric edges are even. * * * * * 34 Line up with edge of throat plate. Elastic should be sewn using the three-thread overlock stitch or the four-thread overlock mock safety stitch.
E A SEAM • HOW TO REINFORC redge sewing will Inserting twill tape while ove stabilize the seam. e in the front of Insert the tape through the hol the foot. t to the back of the Position the tape under the foo m. sea t machine and sew the garmen * * * is sewn. The tape is attached as the seam * F • BRAIDiNG BY CHAINING OF * * * * fe in nonoperating Place the movable upper kni position. or twill tape through Insert filler cord such as yarn t.
DIFFERENTIAL FEED (with differential feed machine only) * Differential feed is a system which “stretches” or “gathers” the fabric, when amount of feed of front feed dog in relation to the rear feed dog is changed. * The differential feed ratio ranges from 1:0.77 1:2.0. Adjustment is made by means of the dif ferential feed adjusting lever as shown. * Feed Control Lever Center Mark Use of differential feed is very effective in overedging stretch fabrics and fabrics cut on the bias.
(2) Stretch overedge (Use regular or rolled hemming throat plate) * Stretch overedge is ideal for sewing decorative collars, sleeves, skirt hems, etc. on loosely knit and woven fabrics. To set the differential feed adjusting lever * Open looper cover and loosen differential feed adjusting lever thumb screw. * Slide adjusting lever upward above the center mark, as required, to stretch, and tighten the thumb screw.
HOW TO ADJUST THE PRESSER FOOT PRESSURE 22. The presser foot pressure of the machine is pre adjusted for sewing medium weight fabrics. * screw Pressure regulating thumb It may be necessary to adjust the pressure to sew different weights of fabrics by turning the pressure regulating screw. For light weight fabric—decrease pressure. For heavy weight fabric—increase pressure. * FREE ARM SEWING (tubular work) 23.
24. EAD AND NEEDLE RELATIONSHIP BETWEEN CLOTH, THR Type of Fabric Needle Type of Thread Light Weight No. 10/70 Cotton No. 100 Silk No. 100 Spun No. 80 Tetron No. 80 Cotton No. 60 Silk No. 50 Spun No. 60 Tetron No. 60 Oxford, Denim Tweed, Corduroy, Cotton No. 40 — Silk No. 40 — Serge Spun No. 60 Tetron No. 60 Spun No. 80 Tetron No. 60 Spun No. 60 Tetron No. 60 Cotton No. 60 Spun No. 60 Tetron No. 50 Lawn, Organdy Voil, Crepe, etc.
25. MACHINE MAINTENANCE An overlock requires more maintenance than a conventional machine mainly due to two reasons. 1) A lot of lint is produced due to the cutting action of the knives. 2) An overlock runs at a very high speed and needs to be oiled frequently to lubricate the internal working parts. * . CLEANING THE MACHINE Danger: Before cleaning your machine, disconnect power line plug from the wall receptacle. Clean the lint from the looper and knife area often with a dry lint brush.
HOW TO REPLACE THE STATiONARY KNIFE Danger: Before replacing the stationary knife, dis connect power line plug from the wall receptacle. The stationary knife should be changed when it becomes dull. The stationary knife can be replaced according to the directions provided, however if there are any re difficulties experienced, consult your adjustments. make the to presentative * * * Be sure that the power line plug is disconnected from the electric source.
26. • HOW TO EXCHANGE LIGHT BULB TROU Danger: Always unplug before relamping. * shop. Take Light bulb is available at your shop and ask for same bulb. old bulb to the * If voltage indicated on the electrical rating plate of l27V, ask for light bulb your machine is 110 conforming to following specification.
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27. OPTIONAL ACCESSORIES AND ATTACHMENTS (1) Sewing with an Overlock * For additional information, the following book is recommended, Sewing with an Overlock-From The Sewing Reference Library, published by Cy Decosse Incorporated. (2) Edge Guide * Attaches to the looper cover to aid in seaming and decorative sewing such as flatlocking and pin tucking. set screw (3) Spool Cap (S) * Adapts a regular thread spool for use on the over lock machine.
F- (5) Ultra Hem Foot Special foot that makes sewing a blind hem easier. The machine will trim the excess fabric, finish off the edge and sew a hem in one operation. * (See page 31) (6) Clean Pocket * Fits under the base of the machine and catches the fabric scraps as they are trimmed. (7) Fabric Separator * Most suited for gathering when sewing tiered skirts, yokes, cuffs and frills on skirts etc. (See Gathered Overedge, page 36 for gather stitching). 28.
PFAFF G. M. Pfaff Akt i en g esel Isch aft Werk Karisruhe-Durlach GritznerstraIe 11 76227 Karlsruhe Gedruckt n Deutschland Druckerel Geblenc GmbH 76356 Weingarten, Stettiner StraSe 17 Technische Anderungen vorbehalten. Nr.: 29-62999558/OOO DG englisch 4/95 4/96 . .
