Benutzeranleitung / Produktwartung hobbylock 756 des Produzenten Pfaff
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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.
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.
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.
CONTENTS Page 1 Accessories 4 2. Needle information 4 3. Principal parts 5 4. How to open looper cover 6 5. Principal parts behind looper cover 6 6. Preparation prior to sewing 6 7. Setting up the thread guide holder 7 8. How to remove and insert needle 8 • To remove needle (s) 8 • To insert needle (s) 8 9.
1. ACCESSORIES ( Needle set ( Screwdriver (sheet metal) Sciewdiver (small si7e) ® Tweezers © Rolled hemming throat plate © Hex-head wrench See page 44 for optional accessories. 1 1 I 2. NEEDLE INFORMATION * This overlock uses a flat shank industrial needle that eliminates the possibility of inserting the needle backwards.
3. PRINCIPAL PARTS Thread guides and holder © Handle Pressure regulating screw Left needle thread tension dial (blue) ® Right needle thread tension dial (green) © Upper looper thread tension dial (.
4. HOW TO OPEN LOOPER COVER * 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. 5. PRINCIPAL PARTS BEHIND LOOPER COVER () Upper looper () Movable upper knife ® Presser foot ® Stationary lower knife ® Lower looper 6.
Warning: * Be sure that the electrical voltage of the electric outlet (wall receptacle) is the same as the rated voltage of the motor. * Handle the foot controller with care and avoid dropping it on the floor. Be sure not to place anything on top of it when not in use.
8. HOW TO REMOVE AND INSERT NEEDLES • TO REMOVE NEEDLE (S) * Be sure to disconnect the machine from the electric outlet before removing needle(s). * Turn the hand wheel toward you until the needle is at its highest position. * Loosen, but do not remove the needle set screw with the small screwdriver.
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.
r 11. THREADING THE MACHINE • THREADING DIAGRAM * A color coded threading diagram is located inside the loopei cover for quick refcrcnce. * Thread the machine in the order ® to as shown.
I I :4 F F F * Pass thread from back to the front through the thread guide D * 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.
(2) Threading the Lower Looper (Yellow) * Thread the lower looper as indicated D * Pass thread from back to the front through the thread guide * Pass thread through hole J from front to back, then to the front through right slot as shown.
I: I * Thread the looper area of the machine following the yellow color coded thread guides ®®. * Remove the cylinder cover (page 9) to expose the lower looper for threading. * Turn the hand wheel toward you until the lower looper is at the far left.
A (3) Threading the Right Needle (Green) * Thread the right needle as indicated (iJ--®. I — . L_—4 1- • —- — * Pass thread from back to the front through the thread guide D * Pass thread through hole ® from front to back, then to the front through right slot as shown.
* Continue to thread points® —®. Note: Be sure to pass the thread through upper thread path of the thread guide(). 15 L * Thread the eye of the right needle ®. * The needle may be easier to thread when the upper knife is disengaged and placed in the non operating position.
I * Pass thread from back to the front through the thread guide * 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.
• IMPORTANT THREADiNG INFORMATION * Always thread the needle(s) last to prevent mis threading the lower looper. * If the lower looper should come unthreaded. 1) Unthread the needle(s) 2) Thread the lower looper 3) Thread the needle(s) * Continue to thread points ®—®.
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.
13. BASIC STITCH TYPES • 4 THREAD OVERLOCK MOCK SAFETY STITCH * This machine is a four-thread overlock that uses two needles and two loopers to create a 5.7mm (7/32 inch) wide four-thread mock safety stitch. • WIDE 3 THREAD OVER LOCK STITCH * When the right needle is removed a wide 5.
• SUGGESTED TENSION SETTINGS FOR 4 THREAD OVERLOCK MOCK SAFETY STITCH Note: * These are suggested tension settings only. * Tension settings are effected by 1) Type and thickness of fabric 2) Needle .
• SUGGESTED TENSION SETTINGS FOR THE 3 THREAD OVER LOCK STITCH Note: * These are suggested tension settings only. * Tension settings are effected by 1) Type and thickness of fabric 2) Needle size 3) Size, type and fiber content of thread.
15. HOW TO CHANGE THREADS/TIE ON METHOD * To change thread type or color, clip thread near the spool. * Place new thread on stand. * Tie new thread and old thread ends together. * Clip thread tails to 2 3 cm (1 inch) length. If clipped too short, threads may come untied.
* Pull the threads through the machine one at a time. * If threads do not pull easily, check for tangles on thread guides or looping under thread stand. * When pulling thread through the needle, STOP when the knot is in front of the needle. * Cut the thread, and insert it through the needle.
• 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.
9. HOW TO ADJUST THE OVEREDGE SEAM WIDTH * The machine is set to sew the four-thread stitch and three-thread left needle position stitch at a width of 5.7mm (7/32 inch). * The machine is set to sew the three-thread right needle position stitch at a width of 3.
20. HOW TO SEW A ROLLED HEM * Rolled hemming is done by rolling and overedging the fabric edge. * Light weight fabrics such as lawn, you, organdy, crepe, etc. perform the best. * Rolled hemming is not suited for heavy or stiff fabrics. MACHINE SET UP Be sure the machine is disconnected from the power source.
• SUGGESTED TENSION SETTINGS FOR STANDARD ROLLED HEM * Always sew a test sample and adjust tension balance if neccessary. * Adjust tension balance the same as for a narrow three—thread overlock stitch (page 21). SUGGESTED TENSION SETTINGS FOR UPPER LOOPER THREAD WRAPPED ROLLED HEM For medium and heavy weight fabrics that are difficult to roll.
* When the needle thread is too loose — Turn the needle thread tension dial (green) to a higher number. * Place a slight tension on the material in the sewing direction and a finer seam finish can be obtained. * The minimum overedge stitch width that can be obtained for rolled hemming is approximately 1.
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.
* Pull on opposite sides of the seam to pull the 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.
• 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.
* Fold the fabric with the wrong sides together and 32 sew. * Press the pin tucks in the same direction. • TURNING SQUARE CORNERS (1) Outside Corner * Cut out approximately 2 cm (51/64 inch) from the corner, in line with the overedge seam edge. * Sew one stitch beyond point (A) and stop.
* 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.
• APPLYING ELASTIC * Place the movable upper knife in the nonoperat ing position. (page 23) * Divide the elastic and the area where the elastic will be attached into quarters and mark with a watersoluble marker. * Lay elastic on the wrong side of the fabric making sure elastic and fabric edges are even.
• BRAIDiNG BY CHAINING OFF * Place the movable upper knife in nonoperating position. * Insert filler cord such as yarn or twill tape through the hole in the front of the foot. * Position the filler cord under the foot and chain off the desired length.
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.
(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.
22. HOW TO ADJUST THE PRESSER FOOT PRESSURE * The presser foot pressure of the machine is pre adjusted for sewing medium weight fabrics. * It may be necessary to adjust the pressure to sew different weights of fabrics by turning the pressure regulating screw.
ii 4 ..‘ 24. RELATIONSHIP BETWEEN CLOTH, THREAD AND NEEDLE Type of Fabric Type of Thread Needle Light Weight Lawn, Organdy Cotton No. 100 No. 10/70 Voil, Crepe, etc. Silk No. 100 Spun No. 80 — 90 Tetron No. 80 — 100 Medium Weight Muslin, Sheersucker Cotton No.
. CLEANING THE MACHINE 40 • OILING THE MACHINE Danger: Before lubricating your machine, disconnect power line plug from the wall receptacle. * The oiling points shown in the diagram, should be oiled periodically. Note: Use sewing machine oil. Do not use any other oil or damage could result.
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.
• HOW TO EXCHANGE LIGHT BULB Danger: Always unplug before relamping. * Light bulb is available at your shop. Take old bulb to the shop and ask for same bulb. * If voltage indicated on the electrical rating plate of your machine is 110 — l27V, ask for light bulb conforming to following specification.
26. TROUBLESHOOTING CHART Problem Solution Page Fabric does not — Lengthen stitch length feed well — Increase presser foot pressure for heavy weight fabric — Decrease presser foot pressure for l.
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.
(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.
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 .
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