Pfaff hobbylock 799 manual

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IMPORTANT SAFETY INSTRUCTIONS This sewing machine is designed and manufactured for HOUSEHOLD use only. When using an electric appliance, basic safety precautions should always be followed, including the following Read all instructions before using this sewing machine DANGER To reduce the risk of electric schock: 1 The sewing machine should never be[...]

Contents Controls of the sewing machine . Accessory box Electrical connection Main switch and sewing light Foot control Notes on safety Handling the thread spool stand Thread guides behind the carrying handle Opening the looper cover and the swingout work support Threading diagram on waste box Threading thread guides 2 and 34 Needle combinations Th[...]

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Controls of the sewing machine 1 Thumbwheel for sewing foot pressure 2 Thread guides with colour markings 3 Carrying handle 4 Thumbwheel for left needle thread tension 5 Thumbwheel for right needle thread tension 6 Thumbwheel for right looper thread tension 7 Thumbwheel for left looper thread tension 8 Thumbwheel for chainstitch looper tension 9 Th[...]

Accessory box The accessory box can only be inserted in its compartment as shown in the illustration. The guide groove of the box must face downwards. Fully open work support 15 and take out the accessory box. Electrical connection This machine must only be used on a flat and even surface or on a special sewing table. Connecting foot control 26: In[...]

5 Switching the machine on and off Both power and sewing light are swit ched on and off with main switch 24. Switching on: Press switch. Machine and sewing light are switched on. Switching off: Press switch again. Machine and sewing light are switched off. Foot control The speed of the Hobbylock is regula ted as follows: The further you press the f[...]

Handling the thread spool stand Pull thread spool stand 21 as far as it will go in the direction shown by the arrow. Fully extend telescopic thread guide bar 38. Slowly turn the two upper telescopic sections until you hear their arresters snap in place. guide bar 38. Push thread spool stand (with or without spools) fully against the machine. After [...]

Opening and closing looper cover and work support Push looper cover 12 fully to the right, hold it, and swing it down. To close the looper cover, push it up until it locks. To open work support 15, push it in the direction shown by the arrow. To close the work support, push it lightly until it locks. Selecting stitch types Stitch types 1 to 8 are i[...]

Threading thread guides 2 and 34 Place thread spools on the spool pins. Threading must be done carefully. First thread up guides 2 according to colours. Then lift carrying handle 3 and place the thread in rear guides 34. Set the thread tensions at N and thread the machine in the following sequence: 1. right looper (red) 2. left looper (yellow) 3. r[...]

9 Threading the right looper Thread the right looper in sequence 1 to B and pull about four inches of thread through the looper eye. The thread path is marked in green in the threading diagram on the rear side of the waste box. Important: In order to achieve perfect sewing results, the thread must be pulled between the tension discs during threadin[...]

Threading the left looper Thread the left looper in sequence 1 to L 10 and pull about four inches of thread through the looper eye. The threading path is indicated in yel low in the threading diagram on the rear side of the waste box. Important: In order to achieve perfect sewing results the thread must be pulled bet ween the tension discs during t[...]

Threading the chainstitch looper 11 Thread the chainstitch looper in sequence 1 to 9 and pull about four inches of thread through the looper eye. The threading path is marked mauve in the threading diagram on the rear side of the waste box. Important: In order to achieve perfect sewing results, the thread must be pulled bet ween the tension discs d[...]

Threading the needles Threading the chainstitch needle (A> Carry out threading for the chainstitch needle in sequence 1 to 7. The threading path is marked blue (tri angular symbol). Threading needle B or C (with or without needle A). Carry out threading for the overedge needle in sequence 1 to 6. The threading path is marked pink (dot symbol). T[...]

Needle threader (accessory) Lower the sewing foot using lifting lever 20. Turn the hand wheel until right looper 31 is positioned right of the needle. Place the thread in slot A of the needle threader and tauten it a little, holding the needle threader turned a little to the front. With the needle between the two guide lugs B, move the needle threa[...]

After threading, close work support 1, fold down carrying handle 2 and close looper cover 3. Fitting the waste box Insert the tonues of the box in the cutouts on the front cover. Seam depth graduations: Application example: If the seam allowance of a cut part is 20 mm, the edge of the butting must be guided along the 20 mm graduation on knife guard[...]

15 Thread regulator Depending on the stitch type, regulator 41 must be set in position R or N. Position R is for all rolledhem seams. Position N is for all other seams. How to use thread regulator 41: Pull regulator 41 outwards and push it downwards to position R until it snaps n (see ill.). Pull regulator 41 outwards and upwards until it snaps in [...]

Sewing test After threading, a sewing test should be carried out. Raise the sewing foot with lifting lever 20 as shown in the illustration. Hold the thread ends with your left hand and turn the hand wheel with your right hand in the direction indica ted by the arrow on the wheel. Hold the threads taut and place them back under sewing foot 18. Place[...]

Points to remember during sewing! Sew the first stitches sIowy. If the machine has been rethreaded, place the fabric under sewing foot 8 and push it up to the needle before starting to sew. Since the fabric is fed automatically, do not pull or push the fabric. Use your hands for guiding only Thread cutter In order to use thread cutter 42 it is nece[...]

Adjusting the sewing foot pressure: Setting ,,N” of thumbwheel 1 is the standard sewing foot pressure. If very thick fabrics are to be sewn, set the thumbwheel at ,,4’. For very thin fabrics set the thumbw heel at ,,1”. Upper knife lock Sewing very thick fabrics in different ply thicknesses: This machine can sew all kinds of fabric from very [...]

Setting the standard thread tension Optimum seam appearance depends on the type of fabric used and on the thread size. The correct tension is set after checking the thread interloop see pages 20 to 24). Set ,,N” on the thread tension thumbwheels at the corresponding colour symbol. If needle A (only for chainstitch) is in use, ,,N” must be set a[...]

Chainstitch Set regulator 41 at N (see page 1 5). Stitch type 1 sewn with needle A Thread tensions: blue = triangular symbol mauve = triangular symbol Application example: Joining linen- or jeans parts without serging. 5-thread safetystitch seam (narrow) Set regulator 41 at N (see page 15). Stitch type 2 sewn with needles A and C Stitch type 3 sewn[...]

4-thread overedge seam Set regulator 41 at N (see page 15> Stitch type 6 sewn with needles B and C Thread tensions: blue = dot symbol pink = dot symbol green = dot symbol yellow = dot symbol Application examples: For sewing and serging all types of fabric, especially suitable for stretch fabrics. 2-thread overedge seam Set regulator 41 at N (see[...]

Correcting the Thread tensions: The thread tensions can be set from —5 to +5. The tension is set at the minus range or plus range according to the seam appearance. Towards + = stronger tension Towards — = weaker tension Chainstitch The thread tension of needle A is too weak. The blue tension must be turned towards +. Note: For 2-thread overedge[...]

3-thread overedge seam 4-thread overedge seam The left looper thread is too loose (yel low tension) or the right looper thread is too tight (green tension). It is possible that both tensions are incorrectly set. Adjust tensions accordingly. The left looper thread is too tight (yel low tension) or the right looper is too loose (green tension). It is[...]

4-thread overedge seam The thread tension of needle C is too weak. The pink tension must be turned towards +. 4-thread overedge seam The thread tension of needle B is too weak. The blue tension must be turned towards +. 5-thread safetystitch seam Since the 5-thread safety stitch seam consists of a chainstitch seam and a 3-thread overedge seam, the [...]

3-thread overedge seam Needle B Needle C Standard seam width N Standard seam width N i__• 1i Li LI 5,7 mm - Max. seam width 7,2 mm Maximum seam width 5 mm 3-thread overedge seam The 3-thread overedge seam is sewn Set regulator 41 at ,,N” with two looper threads and one (see page 1 5) needle thread (needle change see page 40). Changes of seam wi[...]

Engaging and disengaging the con verter Hand wheel 11 must be set as shown in the illustration. Set 2 at the marking line on the hou sing. Before you work with converter 40 the right looper thread must be cut and unthreaded from the looper eye. All seams with converter 40 are only sewn with left looper 32 and one or two needles (see page 27). The l[...]

2-thread overedge seam top side B underside top side underside top side B underside // ,/ / Needle B Needle C Standard seam width N Standard seam width N El ,5 m Setting range 2,5 to 5 mm Setting range 4,7 to 7,2 mm This illustration shows a 2-thread ove redge seam with correctly set thread tensions. Regulator 41 must be set at N (see page 15). Pos[...]

Thread chart for 5-thread safetystitch seam Fabric Stitch Fabric Stitch type Thread weight length Cotton: 2 to 3 mm Size 80 — 100 Chaindtitch Synthetic Size 70 — 140 Organdy, light- Light knis, silk, fabrics Cotton: lining fabrics Size 80 — 100 Overedge Silk 3 to 4 mm stitch Size 80 — 100 Synthetic Size 70 — 140 Cotton: Size 60 — 100 Si[...]

Thread chart for 2-, 3- and 4-thread overedge seams Fabric Thread Stitch length Lighth fabrics: Organdy, light- Cotton Size 80 — 100 knits, silk, Silk Size 80 — 100 2,0 to 4,0 mm lining fabrics Synthetic Size 70 — 140 Medium-heavy fabrics: Cotton, light-knits, Cotton Size 60 — 100 2,0 to 4,0 mm linen, dress fabrics Silk Size 50 — 100 Synt[...]

Setting the stitch length Still holding pushlock 39 (see page 29), now turn hand wheel ‘Ii to set the required stitch length at mark A. The stitch length settings range from 1 mm to 4 mm. The numbers on the hand wheel indicate the stitch length in mm. When you have set the required stitch length, release pushlock 39 again. Please note: The hand w[...]

Adjusting the differential feed The differential feed prevents interply shift. It consists of two feed dogs, arranged one behind the other, which simultaneously take hold of the workpiece and move it. The feed amount of either feed dog can be set separately. It is possible to have the workpiece moved more by the front feed dog than by the rear one,[...]

This table indicates possible settings of the differential feed. Carry out a sewing test to find out the correct setting for your fabric. The differential feed can also be set during sewing. Differential- Correct Fabric Illustration feed setting seam Nylon, tricot, lining fabrics, 0,5 to N 1 a satin, popelin, and silk Light cotton, jeans — 2 C (n[...]

Converting the machine to chain stitch, stitch type 1 Remove waste box 25, see page 14. Open looper cover 1 2 a little and pull off knife guard 10 upwards. Insert needle A (see page 40). Note: For sewing with chainstitch at a hem width greater than 9 mm. upper knife 14 and right looper 31 must be disen gaged. Insert the fabric guide plate (see page[...]

Inserting the workpiece guide plate Open work support 1 5 a little. When inserting the workpiece guide plate, make sure it is level with the needle plate. Close the looper cover and the work support. Now the chain- stitch seam can be sewn! Set the edge guide to the required hem width. Note: If the fabric guide plate is in use, the overedge looper ([...]

Adjusting the seam width The standard seam width settings N for the different needles are: 3.5 mm for needle C 5.7 mm for needle B 7.5 mm for needle A Disengage upper knife as described on page 33. Remove the waste box (see page 14>. Note: The required seam width is set with adjusting knob 35. The graduations on the seamwidth adjusting knob rang[...]

Twothread rolled hems sewn with converter 40: the slide must be set in position A (see page 26). Needle: Use right needle Sewing foot: Rolledhem sewing foot R Seam width: N (3,5 mm) Stitch length: 1,0 to 2.0 mm Set slide 41 at R (see top of page 37) A rolled hem is used for light, delicate fabrics and is an attractive finish for raw edges. Without [...]

Thread regulator Depending on the stitch type, thread regulator 41 is set in position R or N. Position R is for all rolled hems. How to set regulator 41: Pull regulator 41 forward and push it down to position R so that it snaps in (see ill.). 3-thread rolled hem Sewn with polyester thread 100 to 140. A rolled hem is used for light, delicate fabrics[...]

Rolled hem with polyester thread (Figs. 1 and 2, page 37, bottom) Preparation of the sewing machine: Needle: Remove needles A and B Sewing foot: Fit rolled hem foot ,,R” Seam width: From 2.5 to 3.0 mm (depending on material) Stitch length: From 1 .5 to 2.5 (short stitch length) Thread: Polyester 1 00 to 140, for pink, green, and yellow thread ten[...]

Changing the sewing foot Disengage the sewing foot. Push in lever F on the sewing foot hol der as shown in the illustration. The sewing foot disengages. Engaging the sewing foot. Place the sewing foot under the sewing foot holder so that when you lower the lifting lever, crosspiece G engages in groove H of the sewing foot holder. This illustration [...]

Changing the needles Pull out the mains plug. Lower the sewing foot. Turn the hand wheel as shown by the arrow to set the needle bar in its highest position. Hold the needle to be changed with the twee zers. Loosen set screws A, B or C with the small screwdriver. Remove the needle from the needle holder by pul ling it downwards. Inserting the needl[...]

Changing the lower knife Pull out the mains plug Disengage the upper knife (see page 33). Take out retaining screws 30 of lower knife 29. Set seamwidth adjusting knob 35 at 2,5 (smallest seam width). Inserting the lower knife Push the new lower knife from below into the groove of the knife holder. The cutting edge must face right. Tighten retaining[...]

Changing the upper knife Pull out the mains plug Disengage the upper knife, see page 33. Take out upper knife retaining screw 44 and remove the knife. Insert the new upper knife and tighten its retaining screw 44 just a little. Set the upper knife at its working posi tion. Turn the hand wheel unti the upper knife has reached its lowest point. In th[...]

Changing the light bulb Pull out the mains plug. Loosen housing cover retaining screw 43. Open the sewing light housing cover. Behind it, the bulb of the sewing light is located. Removing the tight bulb: Push the light bulb upwards and turn it in direction 1. Inserting the light bulb: Insert the new bulb (1 5 Watt max.> with its pins in slots 3,[...]

Stitch selection table The values set for thread tension, stitch length, needle size, and the differential feed setting are only basic settings that have to be varied according to the application, i.e. to the type of fabric, fabric thickness, and thread used. The Sewing foot must be selected according to the seam width (see ill, at right). The diff[...]

Sewing foot N 3 for Sewing foot N Sewing foot N 2 for Rolled hem sewing seam widths of 3 for seam widths seam widths of 5,5 foot R to 4,5 mm of 4 to 6 mm to 7,2 mm[...]

Fabric Needle system Needle thread j Looper thread 130/705 H Sewing Stitch type (s. p. 28 tension tension foot and29) l5xlH 1 1 2 thre,id serging seam without edge thread light — 2 — 1 (narrow) N or N 3 medium F — 2 — 1 (see top 14 page 45) heavy — 2 - 1 90 of 2-thread sergieg seam without edge thread light 1 — 1 wide) N or N 2 90 (see [...]

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Fabric Needle system Needle thread Looper thread 130/705 H Sewing Stitch type (s.p. 28 tension tension foot and29) l5xlH N N !A -- blue pink green yellow mauve A B C 3-thread serging seam without edge thread light 1 4 + 4 (narrow) —— N or N 3 90 (see top 14 of page 45) medium -1 -4 +4 heavy N —5 +5 3-thread serging seam without edge thread[...]

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Fabric Needle system Sewir Needle thread Looper thread 130/705 H Stitch type (sp. 28 tension tension foot and29( l5xlH N N N N N A B c blue pink green yellow mauve A B C 2-needle 3-thread overedge closing seam light — 1 — 1 —1 without edge thread N or N 90 90 (see tc 14 14 of 5tf!5 medium — 1 — 1 — 1 page 4 heavy N N —1 4-thread over[...]

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Sewing problems and their remedies This machine has been developed for easy operation, and there are no difficult adjustments to be made. Sewing problems of the kind described below may occur due to minor adjustment- and operation errors. They can easily be corrected if you follow the instructions listed below. Problem Cause Remedy Needle breakage [...]

Problem Cause Remedy Machine does not Power suooly interrupted Close looper cover 12 or work sup- run although main port 15 (see page 7) switch is on Fabric not neatly Sewing lint between upper Clean knives (see page 54). trimmed and lower knife Upper knife blunt Change upper knife (see page 42) Puckered seams Thread tension too tight Reduce thread[...]

Cleaning the knives Oiling the machine: Every time you use the machine, apply a little oil to the places indicated. The bushes and other important moving parts are made of special material and need oiling only once or twice a month. One or two drops of PFAFF sewing machine oil are sufficient. Disengage the upper knife (see top of page 33. Use the l[...]

Accessories 1 Screwdriver (big) 2 Screwdriver (small) 3 Lint brush 4 Tweezers 5 Upper knife 6 Thread unreeling disc 7 Needles 2 8 Sewing machine oil 9 Rolled hem sewing foot (R) 10 Sewing foot N2 3 11 Sewing foot N3 12 Thread spool net 13 Needle threader 4 Special accessories, see pages 56-62 Elastic tape sewing foot Part No. 29-924 993-67/100 Tapi[...]

Thread spool net Very useful for synthetic threads which tend to unravel and slip down (Fig. A). Thread unreeling disc The thread unreeling disc shown as item 6 of the accessories is used for smaller thread spools. Remove thread spool centering piece 37 from the thread reel pin. Place the thread spool on the reel pin and the thread unwinding disc o[...]

Stoff Perlen mm Fig. 2 Bead sewing foot (Fig. 1> This special sewing foot is for sewing on beads, sequins, strass bands, lead- and ordi nary cords. These operations are carried out with one needle only. 1. Set thread regulator 41 at N 2. Set differential feed at — 3. Insert bead sewing foot 4. For small beads use the needle C For large beads u[...]

Elastic tape sewing foot This special foot is for sewing on ela stic tape; in the same operation the fabric is trimmed and serged, and also gathered by the contracting elastic tape. Preparing the machine Set thread regulator 41 at N set at — use 1 or 2 needles, depending on tape width insert elastic taping foot N 4 to 4.5 approx. 4 Inserting elas[...]

Taping foot This special sewing foot is for sewing on tapes. On stretch materials (knit- wear) the seams are prevented from stretching when a tape is sewn on. Preparing the machine Set thread regulator 41 at N set at — use 1 or 2 needles, depending on tape width 3 to 5 mm (adjustable for a tape width from 4 to 9 mm) N N Inserting the tape 1. Set [...]

Cording foot This special sewing foot is used for sewing a cording tape between two fabric plies in one operation. Preparing the machine Set thread regulator 41 at N Differential feed setting: set at — Needles: B and C or B Sewing foot: hgage cording foot Upper knife: engaged Thread tension: N Stitch width: 3 to 5 Stitch length: N Inserting the f[...]

Gimp thread sewing foot This special sewing foot is used for sewing in gimp threads (cords, synthe tic threads) up to a thickness of 1.0 mm. By this means a wavy, i.e. more firm hem finish is achieved (e.g. on wedding dresses, curtains, etc.). Preparing the machine Set thread regultor 41 at N. Differential feed setting: Needle: Stitch width: Stitch[...]

Lace sewing foot This special sewing foot is used for sewing lace or borders together or on the workpiece. Preparing the machine: Set thread regulator 41 at N. Differential feed setting: set at — Needle: insert needle C Stitch width: N (with upper knife engaged) Stitch length: 1.5 to 2.0 mm Thread tension: right looper + 2 to + ‘ left looper+ 2[...]

Specifications: Maximum sewing speed Seam width Stitch length Sewing foot Lubrication,..... Max. sewing foot height Needle system . Needle size . . Number of threads Dimensions . . Weight 1.300 stitches/mm. 3-7.2mm 1 —4mm(HL788) 1 — 5 mm (HL 787) Change system Manual 5mm 130/7O5Horl5xlH 75-90or1114 2,3,4,5 315x280x330mm approx. 8.5 kg Contents [...]

PFAFF G. M. Pfaff A kt len g ese I I sc ha ft Werk Karisruhe-Durlach Gritznerstrae 11 7500 Karlsruhe 41 Printed in West Germany Druckerel Gablenc GmbH 7504 Weingarten Stettiner Stralte 17 Subject to alterations in design. No, 29-62999g74/ooo[...]