I PFAFF hobbylock 4870 Instruction manual
For easier understanding of this instruction manual please fold this or the last page out when reading. For the United Kingdom only Safety rules Blue: Neutral The leads must under no circumstances be connected to the safety-lead terminal I nor to a plug with three pins. The wires in the mains lead are coloured according to the following code: Brown: Live As the colours of the wires in the mains lead of this appliance may not correspond to the colour coding of the terminals in your plug.
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Parts of the hobbylock 4870 — — — — Upper thread tension left Upper thread tension right Handle to carry Looper thread tension right Looper thread tension left Looper thread tension for chainstitch Display Window for the stitch length Window for the differential feed Key for speed selection Program key—left Cursor key middle Mod key (right) LED needle display A,B,C Knife guard Looper cover Sewing foot (combination foot) Needle plate Adjusting knob for seam width Detachable work support Window for the s
A. ‘ Important safety instructions For the United States only This sewing machine is designed and manufactured for HOUSEHOLD 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.
Notes on safety Notes on safety for domestic sewing machines according to DIN 57 700, Section 28 or IEC 335, Section 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. 2. When leaving the machine, during maintenance work or when changing mechanical parts or accessories, always disconnect the machine from the mains by pulling out the mains plug. 3.
Simple, up-to-date sewing Congratulations! You have bought a high-quality product that provides unique advantages. Your new hobbylock 4870 can take any material in its stride and will sew, trim and neaten up for you in one operation. 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.
Page - Contents . 44,53 44 52 43,48 43 53 44 65—76 10 15,16 75 70 43 20 17 78,79 80 29 30,31 30 21 81 80 49,50 32,33 45-47 9 27,28 32 32 32 38 72 8,9 35—40 40 8 9 73 71 25 76 38 15,16 — 2 thread overlook stitch...........
. Looper cover Lower knife Main switch Maintenance and malfunction Material guide plate Needle plates N and R Needle threader Normal accessories Oiling Overedge needles Practical sewing Problems when sewing Program chart Programming language Right overedge looper Rolled hem Safety instructions Securing the seam Setting the programs Sewing foot chart Sewing foot lever Sewing foot pressure Sewing test Special accessories Specifications Speed pre-selection Spool disc Spool net.
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Technical part Electrical connection Detachable work support Accessory box Spool stands Waste box / looper cover Threading the thread guides and the looper Threader Threading the needles Sewing foot lever Sewing test / thread cutter Seam width adjusting knob Stitch length adjusting knob Differential feed Changing the needle, sewing foot and needle plate Converting the machine for chainstitch seam Fixing the upper knife /sewing foot pressure —...
Electrical connection Connect the mains cord between socket (29) of the sewing machine and the wall socket. Connecting the foot control Connect the plug of the foot control with the connection socket (31) of the sewing machine. The preset area of the sewing speed (see page 37) is regulated by pressing the pedal. Caution: Do not put anything under the pedal.
I ri Main switch When the main switch (30) is turned on the sewing light is turned up. The machine is now operational. To remove detachab’e work support / free arm The free arm is particularly suited to sew tubular goods without any difficulty. To do so pull the detachable work support (18) to the left. Insert the workpiece in the oppo site direction.
Accessory box To remove: Grip in the recess beneath the accessory box (20) and pull out in the direction of the arrow. To insert: Push the accessory box (20) into the appropriate opening until it catches. The words ,PFAFF hobbylock” must be facing upwards. 10 To open: Open the accessory box (20) by pressing the two points ,,A”.
-- -, Spool stands Before the spools are attached you must pull the spool stand (28) out fully in the direction of the arrow. Extend the telescopic thread guide (24) fully. To assure optimal thread take-up the two upper telescopic extensions must be turned slowly until you hear the ball stops catch in place. When you have finished sewing push in the telescopic thread guide (24) and push the spool stand (28) in towards the machine, with or without the spools, until it catches in place.
Waste box N V ODD C I Insert the tabs on the waste box (51) into the notches on the looper cover (14) and press it down against the looper cover until you can hear it catch in place. To take off reverse this process. 0 Looper cover Push the looper cover (14) to the right until it catches in place and then swivel it down. The individual threading paths as well as the converter setting are illustrated in colour on the inside of the looper cover.
nd e off :ed n is. dis - ccc 000 = 0 ccc 00 — Threading thread guides Place thread spools on the spool pins (25). For smaller spools we recommend you attach a thread unwinding disc to the spool with the rounded end to the bot accrding With both hands pull the thread through the thread guide (36) and the appropriate thread tension (1, 2, 4, 5 and 6). Make sure the thread stays in the slot on the back thread guide (36). Set the thread tension to ,,N” and thread as indi cated. 1.
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— 000 C DOD D 000 1 2 Threading the left overedge looper 1. The marking on the hand wheel must be in line with the marking on the hou&ng. 2. Thread the left overedge looper (39) in the order 1 to 8. Pull the thread from thread guide 8 through the looper eye 9 and pull it a bit with your left hand.
16 N , 0 11 7 3. Pull the end of the thread slightly and push the slider on the looper threader (41) to the left until it rests in place. çgtL /Q 4. Pull the thread a bit more nd at the same time let the slider slowly slide back. The thread is automatically inserted in guide 10. 5. With the tweezers thread the thread through thread guide (1 1) and draw the thread to the left under the sewing foot. The threading path is marked in yellow.
zz Il ID 1 — Threading the chainstitch looper ooper(4O) in the antiolockwjse so that the chainstitch looper is in the farthest position to the right.
/ , /1 V o o / — 8 , / I V 4 — — Push the positioning lever (44) of the chainstitch looper down. This moves the looper to the next position to the right and you can thread it easily. 0 6 / Draw the thread throug h thread guide 7 to thread guide 8. Now pull the thread through the looper eye 9 and place it to the left under the sewing foot. Return the positioning lever (44) of the chainstitch looper to its origina l position. The threading path is marked in mauve.
D ‘42) A 1 B B C B , A A ! B Needle threader (accessory) Lower the sewing foot with the sewing foot lever (33) and turn the hand wheel (32) until the needle is in its highest position. Place the threader from the accessories (see page 66) with the needle between the two guide lugs B. Draw the thread through slot A on the threader and hold it a bit taut. Slowly lower the threader behind the needle until the small hook C passes through the needle’s eye.
II 1 2 1 7 I 0 0 000 5 6 5 000 0 0 0 0 0 DOD 0000000 IhL-4 0 Threading the needles Note: When threading the needles make sure that the sewing foot lever (33) is in its highest position. This automatically releases the needle thread tensions and makes it easier to thread the needles. Threading the overedge needles B or C (with or without needle A) Thread the overedge needle in the order 1 to 8 and draw the thread through the needle’s eye 9 with the threader.
7 1 2 ‘5 000 LJDD 0000000 ___________ ____ _______________________ 1 2 3’ 8 67 o — Threading overedge needles B and C (without needle A) Thread the overedge needles B and C in the order 1 to 8 and draw the thread through the needle’s eye 9 with the threader. Draw the thread to the left under the sewing foot. The threading path for needle B is marked in blue (dots) for needle C in green (dots). Caution: Never use three needles.
22 I .1 Closing the looper cover When the machine has been threaded you must close the looper cover (14). Note The power to the machine is cut off if the looper cover is open i.e. it is now impossible to sew. ,,Close looper cover” appears in the display. The LEDs on the speed selection also flash. Sewing foot lever The sewing foot is raised and lowered with the sewing foot lever (33).
\ 000 - 0 0 ‘ 000 0 0 000 0 DO 000 Sewing test When the machine has been threaded, you should sew a test seam. First raise the sewing foot. Place a fabric remnant under the sewing foot right in front of the needle and lower the foot. With the threads held slightly taut, slowly begin to sew. Since the fabric is automatically fed, you just need to guide the material with your hands (do not push or pull). Note: Make sure that the threads interloop correctly when sewing (thread chain).
oO Thread cutter To use the thread cutter (26) you must sew over the end of the seam. Draw the thread chain that results to the front over the thread cutter. / Securing the seam There are various ways of securing the ends of seams: 1. Knot the thread chain. 2. With knitwear you can pull the thread chain into the seam with a crochet needle. 3. Sew about 2 inches over the end of the seam. Turn the sewing round and sew back a few stitches in the opposite direction without cutting the thread chain.
w ______________________ a E Setting the seam width The seam width adjusting knob (17) is released if it is pressed the right. You can now set the seam width you require as indicated in the window (19). The range is from 3 to 5 mm and is infi nitely variable. The standard setting N is 3.5 mm. Note: The seam width settings 3 to 5 are just for needle C. If needle B is used the amount that is set is increased by 2.2 mm to 5.2 to 7.2 mm.
I 1 1.5 2 2.5 N 3,5 4 Setting the stitch length You can set the require stitch d length by turning the stitch length adjusting knob (34), The setting is displayed in the window (8). The range is from I to 4 mm and is infini tely variable. The standard setting N is 3 mm. Differental feed The differential feed consists of two feed dogs, one behind the other, that assure that the fabric is fed compl etely evenly . It preven ts the displac ement of the two fabric lays.
= as same movement of feed dogs front feed dog longer movement, rear feed dog shorter movement Setting the differential feed You can set the differential feed turning by the adjusti ng ring (35). The range from 0,5 to 2 is infinitely variable and is indicated in the window (9).
1,5 N 0,5—N DifferentialFeed setting 4 3 2 1 Fig. f d c a Correct seam j 1,5—2 Fig. 1 Fig. 3 9 and rib-knit Fig. 4 Fig. 2 heavy knitwear, very elastic fabrics fabrics and light knits jersey, medium cotton, cut-pile (normal fabrics) light cotton and denim, poplin and silk nylon, tricot, lining fabrics, satin, Fabric This table shows possible settings for the differential feed. Sew a test seam to deter mine the correct setting for your fabric.
K Changing the needle Switch off the main switch. To remove: Lower the sewing foot and put the needle in its highest position. Now push the needle changing aid from the accessories (see page 66) from below right up until it catches over the needle. Loosen set screws (A, B or C) with the red screwdriver and pull the needle down to remove. To insert: Insert the needle into the hole E of the needle changing aid, with the flat needle shank K facing towards the flat side L of the aid.
Changing the sewing foot Switch off the main switch To remove: Raise the sewing foot with the sewing foot lever (33) and set the needle in its highest position. Press the white lever on the back part of the sewing foot holder. The sewing foot is automatically released from its mount and you can remove it to the left, raising the spring slightly.
To remove: Raise the sewing foot with the sewing foot lever (33) and set the needle in its high est position. Remove the sewing foot and press down the lever to disengage the needle plate (45). The needle plate (16) is raised out of its mount. Raise the needle plate a little more and remove to the left. 2 To attach: Raise the spring on the sewing foot holder a little and place the needle plate (16) in the guide screw at the back. Press the needle plate down at the front so that you can hear it catch.
— -N1LSll N. — Ic 32 Converting the machine for chainstitch, program 8 This is only necessary if you do not wish to cut the fabric edge. Insert needle A with the needle changing aid from the accessories (see page 66). First thread the chainstitch looper (40) and then needle A. Open the looper cover and pull the knife guard (13) off to the left. Disengaging the upper knife Note: To disengage the upper knife (49) you must set the seam width adjusting knob (17) to 3mm.
y ___________ /a__ / z Inserting the material guide plate Insert the material guide plate from the accessories (see page 66) as illustrated and make sure that it is on the same level as the needle plate. Now close the looper cover and set the guide ruler to the width required. You can now sew in chainstitch. Caution: If the material guide plate has been inserted, it is imperative that the right overedge looper is disengaged.
Note: 0 Upper knife lock You can sew absolutely any type of fabric with this machine, regardless of its thick ness. For extremely thick fabrics you must tighten the axial lock screw on the upper knife with the large screwdriver from the accessories (see page 66). This prevents the knife from being displaced by the material. Remove the sewing foot and needle plate (see page 30, 31).
Electronics To programme language Speed pre-selection LED needle display To select program To enter new data - - page page page page page 36 37 38 39 40 35
I iflflrii. You can choose between the following languages: Czech, Danish, German, English, Spanish, French, Italian, Dutch, Norwegian, Polish, Finnish, Swedish and Japanese. To programme language: Keep both the program key (11 left) and the key (10) for the speed preselection pressed and at the same time switch the machine on. ,,cesky” (Czech) now appears in the display. You can select the language you want by repeatedly pressing the program key (11 left).
“If I ooo DC ó \I I, 1 —0 O “ I DEl n El Speed pre-selection = 0 to max. 1000rpm On this machine you can set the maxi mum speed in three steps with the key (10). By pressing the key (10) you change the maximum speed and one, two or three LEDs light up. One LED lights up = 0 to max. 500 rpm Two LEDs light up Note: = 0 to max. Each time the machine is switched on it automatically sets a speed of 1 000 rpm.
a e a 000 II a a -ODD 0 000 PFAFF hobbylock 4870 i \___________________________________ _ ._____ Display LED needle display (A, B, C) for the 10 most important The LEDs on the needle display (12) show which of the needles A, B or C have to be inserted for the program you have selected.
; 0 0 0 0 0 prj 0 0 Q 000 OO 21 3thread overlock witH safety stitch narrowj 0 000 I-N--I-Nl---N--I-N-±N 121-101-1.01-N-I-N--I-N-- 000 .. 0 ID “C Ill 000 t .. ID ID 1 ID DDD 5;. ID 000 ID 0 ooo 0000000000 0 ,0000000000 / PFAFF Select the desired program by pressing the left program key (11). The programs appear in the order 1 —21. Keep the key pressed and the programs automatically run on.
i1 N 11 21AIN -101-1.01 —N-HN-IN N---N•-I•-N 000 000 -N- -N- I 0 - 0000000000 000 ‘I, 21A1 -N- I-N- I 00000 000 H--N--I-N-I N 000 00000000 d-lo N-- I--N--I N- 000 I-i 000 r 0 4 0 N I Ll XJt 1 F =’l I 40 Entering new data This machine has 21 programs. The optimal values are entered as standard settings for each program. You can change all the data from the standard settings in any program and store them.
Practical sewing Setting the standard thread tension Chainstitch 3 thread overlock with safety-stitch 3 thread overlock stitch 4 thread overlock stitch 2 thread overlock seam 2 thread overlock with safety-stitch Correction of thread tensions Converter (2 thread seam> Rolled/flat hem (2 and 3 thread> Thread chart Program chart — — — page 42 page 43 page 43 page 43 page 44 page 44 page 44 page 45 48 page 49 51 page 52, 53 page 54, 55 page 56 63 41
, / Iy_ ‘I DOD 0 000 0000000000 000 Setting the standard thread tension Uniform thread tension depends on the type of fabric and the thickness of the thread. The thread tension should be corrected after the thread interloop has been- checked (see page 43 to 47). Turn the values indicated on the thread tension thumbwheels to the corresponding colour symbol. If you are using needle A (only for chainstitch) you must turn the value to the blue triangle. If you are using needles B and C turn to the dots.
I i / __ top side charnstitch top side chainstitch underside top side chainstitch iop side overlock stitch —to side overlock stitch underside overiock stitch top side top side overlock stitch underside chainstitch. underside underside underside The right thread tension Prog8 Chainstitch Thread tensions blue =triangle mauve = triangle Examples of use Joining linen or jeans parts without ser ging Prog.
44 top side overlock stitch, top side top side overlock stitch, top side topside overlock stitch, uncle rs ide — overlock stitch underside underside underside I topside overlock stitch, top side overlock stitch, underside chainstitch underside underside Prog. 7 4 thread overlook seam Thread tensions: blue =dot green =dot pink =dot yellow = dot Examples of use: For sewing and serging all types of fabric, especially suitable for stretch fabrics. Prog.
/ I -‘ needle thread A & needle thread BorC left looper thread right looper thread = — Correcting the thread tension: The tension can be set between —5 and +5 It must be turned either to the or + range depending on the seam appear — Towards + = tighter tension looser tension Towards Prog 8 Chainstitch The thread tension of needle A is too loose The blue thread tension must be turned towards + Prog.
46 1 —ø ..‘ _right looper thread left looper thread 1- right looper thread left looper thread thread left looper thread Prog. 4 or 5 3 thread overlook seam (narrow or wide) The right looper thread is set too loose (pink tension) or the left looper thread is set too tight (yellow tension). Both thread tensions must be adjusted accord ingly by turning to + or—. Prog.
needle thread B Prog. 10 or 21 3 thread overlock with safety-stitch (wide or narrow) Since the 3 thread overlock with safetystitch is a combination of chainstitch and a 3 thread overlook seam, you can find the way to adjust these seams on pages 45 and 46. Prog. 7 4 thread overlook seam The thread tension on needle C is too loose. The green tension must be turned to +. Prog. 7 4 thread overlock seam The thread tension of needle B is too loose. The blue tension must be turned to +. Prog.
48 Prog. 4 or 5 ___________ _____ 3 thread overlock seam mm. 3 mm c max. 5 mm Needle width Standard needle width N 5 A Needle C 3 thread overlock seam (narrow or wide) The 3 thread overlock seam is sewn with two looper threads and one needle thread (needle change page 29). The set seam widths 3 to 5 mm in the window (19) only apply to needle C. If needle B is used, the setting is increased by 2,2 mm (seam width 5,2 to 7,2 mm). Needle B 4’ I Standard needle width N 5,7mm max 7.
Converter A serging seam is genera lly sewn with threads 3 . If you connec t the converter you can dispense with one thread i.e. you just continue to sew with 2 threads and thus save a lot of thread. Where ver 2 a thread seam is enough i.e. for elastic materials and materials that hardly fray, you can still make neat edges with less thread. You can also make very effective fancy seams with the converter using mercer ized cotton.
50 0 - — 0 —— — — C 0 N fl The left hand thread that runs over the right looper must be pulled over the poin of the right looper in the direction of the arrow as in this illustration. — — position A position B Push the slide of the converter to the left until the triangles are in line. The point of into the eye of the Converter switched on Converter switched off To switch the converter off Turn the hand wheel slowly until the left hand looper thread jumps from the point of the right ‘ooper.
I A B underside • un dersd i e topside underside top side ___________ I L •< ,B I ‘I top side 2 thread overlook seam with converter — Standard seam width with needle B = 5,7 mm (range from 5,2 7,2 mm) Standard seam width with needle C = 3 5 mm (rangefrom3— 5mm) Progr 1 or2 2 thread overlock seam (narrow or wide) FLATLOCK This illustration shows the 2 thread over lock seam with the thread tensions cor rectly set Ways of correcting the thread tensions Prog lor2 2 thread overlock seam (nar
Prog. 3,6, 13 or 18 0 0 underside top side underside top side 3 thread rolled hem Prog.18 3 thread flat hem Prog. 6 Rolled/flat hem A rolled/flat hem is used for light, thin fabrics and also creates a decorative edge. It is a very simple way to add a professional touch to cloths, scarves and valance. To do so just convert the machine as indicated in the display.
— — top side underside top side underside Needle plates N and R The needle plate R must be used for all Prog 3 2 thread flat hem The amount of thread used for the 2thread flat hem is smaller and the seam seems finer The converter must be switched on for this flat hem (see pages 49 50) Prog 13 2 thread rolled hem The converter must be switched on for this rolled hem (see pages 49 50) 53
Thread chart for the 3 thread overlock seam with safety-stitch Stitch length Thread 2 . Type of stitch 3 — — — Fabric cotton no. 80 100 silk no. 80 100 synthetic thread no. 70 140 2 — — — — — — — — — no.40—50 silk — no. 50 100 synthetic thread no.70—140 — synthetic thread no. 70 140 — — — 4 mm 3 mm 4 mm 4 mm 2 —3 mm — 3 mm overlock stitch cotton no. 60 100 silk no. 50 100 synthetic thread no. 70 140 3 .
Thread — — — — — — — — — — — — — 60 60 140 60 60 140 100 100 140 1 00 1 00 140 1,0 2,0 2,0 2,0 2,0 — 4,0 mm 4,0 mm 4,0 mm 4,0 mm 2,0 mm — — — — 140 Stitch length Thread chart for the 2, 3 and 4 thread overlock seam Fabric weight cotton no. 80 silk no. 80 synthetic thread no. 70 cotton no. 40 silk no. 40 synthetic thread no. 70 cotton no. 40 silk no. 40 synthetic thread no. 70 cotton no. 60 silk no. 50 synthetic thread no.
Program chart The values for thread tension, stitch length, needle thickness and the differential feed settings are basic settings and must be altered or corrected depending on the type of fabric, fabric thickness and thread.
Note: 90 14 e 90 14 N N N Needle plate N Differential feed position of converter Arn.._.B Zii disengaging everj This information about the thread spools, position of the looper disengaging lever and the converter position is only to be found in this chart (not in the display).
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69 A’
Program No.: Stitch type: Prog.
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Program No.: Stitch type Prog, 16 3 thread decorative seam serging Inarrowl flatlock Material (see page 54, 551 light medium Looper thread tension pink yellow — mauve Ni Ni Ni green + Needle thread tension iN blue 1 +4 4 + +1 — 5 — -5 — N Sewing foot pressure 1 N N N-3 — N 1 + +4 N—3 4 5 +1 +4 + —5 +1 1 medium —5 3 — heavy + N N — N N N—3 1 light .
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A / TBI 5 IiLS•tf i f B ‘Li -1 \ C Thread spool net The thread spool net from the access ories (see page 66) is particularly useful as it prevents synthetic threads from unravelling so easily and slipping off the spool (Fig A). Thread unreeling disc The thread unreeling disc from the acces sories (see page 66) is used for smaller thread spools. Remove the thread spool centering pieces from the thread reel pin and put on the thread spools.
1: Gathering foot Elastic tape sewing foot Gimp thread sewing foot Blindstitch foot Taping foot Combination foot Combination foot R N N N H N N R N special accessory special accessory special accessory special accessory special accessory special accessory special accessory special accessory normal accessory normal accessory Accessory 29-924 993-71/297 29-924 993-71/296 29-924 993-71/298 29-924 993-71/293 29-924 993-71/292 29-924 993-71/294 29-924 993-71/291 29-924 993-71/2
/ Taping foot This special sewing foot is for sewing on tapes to prevent stretch materials (knitwear) from stretching. — N normal needle plate N see display (press mod key) taping foot switch off N 4 or 5 depending on width of tape N 3 5 (adjustable for a tape width of 4- 9 mm) Preparing the machine: Program: Stitch length: Stitch width: Differential setting: Sewing foot pressure: Needle plate: Thread tension: Sewing foot: Upper knife: Inserting the tape: 1. Set the needle at highest point. 2.
70 Blindstitch sewing foot Blindstitch is ideal for skirt and trouser. seams and wherever the seam should not be visible. The hem is trimmed, serged and sewn in one operation. N normal needle plate N see display (press mod key) blindstitch foot switch on Preparation of the machine: Program: 4 Stitch length: 4 Stitch width: N Differential setting: N Sewing foot pressure: Needle plate: Thread tension: Sewing foot: Upper knife: Sewing: 1. Before sewing cut 2 cm off hem part 3.
Gimp thread sewing foot This special sewing foot is used to sew in gimp threads (cords, synthetic threads) up to a thickness of 1,0 mm. This produ ces an undulating or stiffer hem (e.g. on wedding dresses and valance). Preparing the machine Program: 1 3 (switch converter on) or prog.
72 4 — — Elastic tape sewing foot This special sewing foot is for sewing on elastic tape in one operation at the same time as trimming, sergirig and due to the contraction of the elastic tape gathering.
1 ‘ 3 Gathering foot This special gathering foot is for sewing bottom ply in one operation. two fabrics together and gathering the N or 3 normal needle plate N see display (press mod key) gathering foot engaged 2 7, lOor2l N N Preparing the machine: Program: Stitch length: Stitch width: Differential setting: Sewing foot pressure: Needle plate: Thread tension: Sewing foot: Upper knife: Inserting the fabrics: 1. Raise the sewing foot and set the needle in its highest position. 2.
74 Cording foot This special sewing foot is for sewing a cording tape between two fabric plies in one operation. N or 3 normal needle plate N see display (press mod key) cording foot engaged N 7.10cr 21 N’ 3—5 Preparing the machine: Program: Stitch length: Stitch width: Differential setting: Sewing foot pressure: Needle plate: Thread tension: Sewing foot: Upper knife: Inserting the fabric plies: 1. Raise the sewing foot and set the needle in its highest position. 2.
Fig1 fabric Fig. 2 L 2 beads 1 1-1,5mm Bead sewing foot This special sewing foot is for sewing on beads, sequins, strass bands, lead and ordinary cords. These operations are car-. ned out with one needle only.
76 — • ‘ -E -. - 1 ,- ‘ ....•—.. ,, 1’ i Lace sewing toot This special sewing foot is used for sewing lace or borders together or onto the workpiece. 1 or N normal needle plate N see display (press mod key) lace sewing foot optionally disengaged or not N 4 1,5 to 2,0 N Preparing the machine: Program: Stitch length: Stitch width: Differential setting: Sewing foot pressure: Needle plate: Thread tension: Sewing foot: Upper knife: Sewing on lace: 1.
Maintenance and malfunction Changing the knives Changing the light bulb Cleaning the needle plate Cleaning the knives Oiling the machine Sewing problems Specifications page page page page page page page 78, 79 80 80 81 81 82, 83 84 77
J. ii r E E 0 7 ILr) 78 0 If Changing the upper knife Switch main switch off To remove: Take out the upper knife retaining screw (46) with the large screwdriver from the accessories (see page 66) and remove the upper knife (49). To insert: Insert the new upper knife (49) and tighten its retaining screw loosely. Turn the hand wheel until the upper knife is in its lowest position. In this position the front edge of the upper knife must be 0,5 to 1,0 mm lower that the cutting edge of the lower knife.
- Changing the lower knife Switch main switch off To remove: Set the seam width adjust ing knob (17) to 3. Remove the sewing foot as well as the needle plate (see page 30, 31). Raise the needles to their high est position and disengage the upper knife (see page 32). Undo the lower knife retaining screw (47) with the large screwdriver from the accessories (see page 66) and remove the screw, pressure plate and lower knife.
F i To insert: A Insert bulb C r j Changing the light tool off bulb the switch With main remove: Switch To from the accessories (see page 66) press the light bulb right into its holder. At the same time twist the bulb with half a turn, anticlockwise and remove it. needle off plate mainswitch the the largest Disengage the upper knife (see page 32). Set stitch width. Clean the mark ed area carefully using the brush from the accessories.
-U 0 0 0 Cleaning the knife Switch the main switch off Take out the upper knife retaining screw (46) with the screwdriver supplied. I 6 / You can now remove the upper knife (49) and clean the lint off the upper and lower knife with the brush from the accessories (see page 66). N - Oiling the machine Before using your machine you should make a habit of lightly oiling the marked points with the oil from the accessories (see page 66). One or two drops of PFAFF sewing machine oil are enough.
[. [ F I IL Sewing problems and their solutions Problem The needle was bent or the point damaged. The needle was not properly inserted. The fabric was pulled too forcefully. Cause Insert new needle (see page 29>. Insert needle properly (see page 29). Do not pull the fabric when sewing. Solution The machine was developed for the simplest operation possible. There are no compli cated settings.
The fabric is not trimmed neatly. The machine does not operate although the main switch is switched on. Problem Lint between the upper and lower knife. The lower knife is blunt. The electric power has been cut. Cause Clean the knife (see page 81). Change lower knife (see page 79). Close the looper cover (see page 12). Solution — The thread tension is too tight. Gathering of the seam. . — Reduce thread tension (particularly for light fabrics see page 42 47).
.li Contents of the cardboard box Machine Foot control Mains cable Machine cover Waste box Workpiece guide plate Instruction manual Spedfications Maximum sewing speed Seam width Stitch length Differential feed Needle plate Lubrication Max.
Thread guide with coloured markings TelescoPic thread guide Spool pins Thread cutter Spool centering Spool stands Power socket Main switch Foot control socket Hand wheel Sewing foot lever Stitch length adjusting knob Adjusting ring for the differential feed Reverse thread guide Parts of the hobbylock 4870 (23) (24) (25) (26) (27) (28) (29) (30) (31) (32) (33) (34) (35) (36) (50) Material guide plate (51) Waste box
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PFAFF G. M. Pfaff Aktiengesellschaft Werk Karisruhe-DurlaCh Gritznerstrafe 11 76227 Karlsruhe 41 * Printed in West Germany I / Druckerei Gablenz GmbH 76356 Weingarten. Stettiner StreSs 17 Subject to alterations in design. No.
