Instruction/ maintenance manual of the product coverlock 4852 Pfaff
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Owner´s manual coverlock 4852.
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Parts of the coverlock 4852 1 Upper needle-thread tension 2 Upper needle-thread tension 3 Carry handle 4 Thread tension/upper looper thread 5 Thread tension/lower looper thread 6 Thread tension/two-th.
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This household sewing machine is designed to comply with IEC/EN 60335-2-28 and UL1594 IMPORT ANT SAFETY INS TRUCTIONS When using an electrical appliance, basic safety precautions should always be followed, including the following: Read all instructions before using this household sewing machine.
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Simple, up-to-date sewing Congratulations! Y ou have bought a high-quality product that provides unique advantages. Y our new coverlock 4852 can take any material in its stride and will sew through thick and thin for you.
6 Page Accessories ................................................................................................................ 6 Accessories, optional ...............................................................................................
7 Page Sewing problems and their solutions ...................................................................... 61 Specifi cations ............................................................................................................. 64 Spool dise .
8 8 Accessory box Open the accessory box 49 by gently pressing the bottom of the box inwards. The following accessories can be found in the box: 1 Thread nets (5) 2 Overlock needle system EL X 705, cat.
9 9 Connecting the foot control Connect the plug of the foot control to the connection socket 39 of the machine. The sewing speed is regulated by activating the foot control. Y ou may also regulate the sewing speed by adjusting the slide on the front side of the foot control.
10 10 Looper cover Push the looper cover 7 fully to the right and then swivel it down. Five types of stitches and their threading paths are portrayed in color on the inside of the looper cover . Note: The electricity supply of the machine is cut off as soon as the looper cover or swivel plate 12 is opened, for safety reasons, i.
11 11 Spool holder Before placing thread cones/spools on machine you must pull the spool holder 34 fully away from the back of machine. T elescopic thread guide Pull the telescopic thread guide 32 upwards to its highest position. T o ensure optimum thread feed, turn the telescopic parts slowly until you hear the locking balls fl ick into place.
12 12 Spool disc/cone thread adapter It is advantageous to use the spool dise 37 when sewing with large spools (5,000 10,000 m). T o do this, place the cone thread adapter 36 onto the spool pin 35 . With synthetic threads, the spool discs help eliminate vibration of the cones/spools aiding in smoother feeding of the threads.
13 13 Presserfoot With standard presser foot 10 use setting ”A” on the spring loaded presser foot latch for the cover stitch (Prog. 02), the 2 thread chainstitch (Prog. 01), the 5 thread safety stitch seam (Prog. 09) and the 4 thread safety stitch seam (Prog.
14 14 Needle position This machine has 4 needle positions and can sew with a maximum of two needles at any one time. The needle positions are 1 1, L2, R11 and R2. The fastening screw is located directly above the corresponding needle. The different needle positions are depicted in a schematic drawing in the instruction manual.
15 15 Changing the needle Switch off the electrical power T o remove: Lower the presser foot and move the needle(s) to the highest position by turning the handwheel towards you. Push the needle inserting tool (from the accessory box 49 ) from below upward fully over the needle.
16 16 Threading the thread guides Place the spools on the spool pins 35 . Y ou will fi nd information on the thread net, thread unreeling disc, spool disc and cone thread adapter on pages 9 and 10. Thread through the thread guides 31 from the back to the front following the colored threading paths.
17 17 Threading the upper overedge looper (pink) T urn the handwheel towards you until the upper overedge looper 18 is in its highest position. Thread in a sequence of 1 to 8. Note: T o make this task easier , use the tweezers which can be found behind the swivel plate.
18 18 Threading the lower overedge looper (yellow) T urn the handwheel towards you until the lower overedge looper 19 is on the extreme right. Thread in a sequence of 1 to 10. Note: T o make this task easier , use the tweezers which can be found behind the swivel plate.
19 19 Thread through the thread guides 1 to 8, marked yellow . Thread from the front through the eye of the lower overedge looper C (= threading point 10 ). Press lever A downwards and hook the thread into guide B . Please also refer to the drawing below .
20 20 Threading the two thread chainstitch looper and cover stitch looper (violet) for the chainstitch T urn the handwheel towards you until the two thread chainstitch looper 20 is on the extreme right. Thread in a sequence of 1 to 11. Note: T o make this task easier , use the tweezers which can be found behind the swivel plate.
21 21 Thread the thread guides which are marked with a violet square in a sequence of 1 to 9. Thread from the front through eye C of the two thread chainstitch looper and the cover stitch looper (= threading point 11). Push lever A upward and hook the thread into slot B .
22 22 Exception: Threading the two-thread chainstitch looper and cover stitch looper for the cover stitch (violet) (Prog. 02) T urn the handwheel towards you until the two thread chainstitch looper 20 is on the extreme right. Thread in a sequence of 1 to 10.
23 23 Thread the thread guides, as shown in the diagram, in a sequence of 1 to 8 . Some of the threads guides are marked with a violet square. Thread from the front through eye C of the two-thread chainstitch looper and the cover stitch looper (= threading point 10).
24 24 Threading the needles Thread in a sequence of 1 to 8. Note: T o make this task easier , use the tweezers which can be found behind the swivel plate. The thread must be guided through the lower slot of thread guide 4 . Pull approximately 4” (10 cm) of thread through the looper and place it to the left under the presser foot.
25 25 The thread must be guided through the upper slot of thread guide 5 . Exception: Threading needle L2 when sewing a 5- thread safety-stitch seam (Prog. 09), a 4- thread safety-stitch seam (Prog. 08) and a 2-thread chainstitch (Prog. 01) Thread in a sequence of 1 to 9 .
26 26 Important note on threading The needle(s) must always be threaded last so that the needle threads do not run under the looper thread as seen in drawing 1, but instead over the looper thread as depicted in drawing 2. Should this sequence not be followed, thread breakage or missed stitches can occur .
27 27 Needle threader Move the needle(s) into the highest position and lower the presser foot. Place the thread from right to left in notch A of the needle threader (to be found in the accessory box). One of the two triangles must point upwards. Place the needle threader onto the front groove of the needle.
28 28 Overview of the threading paths and threading sequences Program 01: 2-thread chainstitch Program 03: 2-thread fl atlock, narrow Program 11: 2-thread serging, narrow Program 12: 2-thread rolled .
29 29 Overview of the threading paths and threading sequences Program 05: 3-thread overedge. narrow Program 14: 3-thread rolled hem Program 15: folded 3-thread rolled hem Program 16 3-thread fl atloc.
30 30 Overview of the threading paths and threading sequences Program 09: 5-thread safety-stitch seam Program 10: 2-needle 3-thread assembly seam Presser foot pressure The pre-set presser foot pressure on the machine is suitable for medium heavy fabrics.
31 31 Thread chain cutter After fi nishing the seam, sew an approx. 6” - 8,1” (15 20 cm) long thread chain. Pull the thread chain from the right to left over the thread chain cutter 33 .
32 32 Disengaging the upper blade Switch off the electrical power Move the movable upper blade 23 into its highest position by turning the handwheel towards you. Remove the waste container and open the looper cover and the swivel plate. Push the knob for lowering the upper blade 27 fully to the right.
33 33 Swiveling stitch width latch For standard overlock seams: The swiveling stitch width latch 22 remains in the basic position when sewing all types of standard overlock seams (exception: Program 01, 02). For rolled hems: Pull knob (A) to the right and swivel the swiveling stitch width latch 22 downwards.
34 34 Attaching the converter Switch off the electrical power The converter 28 must be attached for all two thread seams (exception: Program 01) and the two needle three thread assembly seam. Open the swivel plate and remove the converter 28 from its storage place.
35 35 Setting the seam width The required seam width can be adjusted anywhere between 3.5 and 6 mm by turning the adjusting knob for seam width 13. The setting can be seen through the viewing window 14 . The two thread chainstitch is sewn with a clearance of 6.
36 36 Adjusting the machine to the cover stitch (Prog. 02) and two thread chainstitch (Prog. 01) This is only necessary if you do not want to trim the fabric edge. Insert the needle(s) (see page 13) according to the overview of the threading paths and threading sequences (see page 26).
37 37 Press the power table 50 downwards into the designated slot on the looper cover . Close looper cover . Note: Please ensure that the upper overedge looper is disengaged before attaching the power table 50 .
38 38 Differential feed The differential feed consists of two feed dogs ( A + B ), one behind the other , which feed the fabric. The movement of the front feed dog ( A ) and thus the amount of material to be fed can be regulated using the regulator wheel 41 .
39 39 Set the regulator wheel for the differential feed 41 to 2.0. Here the front feed dog feeds twice as fast as the rear feed dog. This means that the front feed dog feeds twice as much fabric as the rear feed dog, causing the material to gather .
40 40 Adjusting the stitch length Y ou can set the desired stitch length between 0.5 mm to 4.0 mm by turning the stitch length adjustment knob (42) . Note For the two thread chainstitch, the setting should be 3.0 or higher . Removing the needle plate Raise the presser foot and move the needle(s) to the highest position.
41 41 Securing the upper blade Switch off the electrical power It is recommended to secure the movable upper blade 23 before sewing heavy fabrics. Raise the needle(s) to its highest position and open the swivel plate. T ighten the screw fully using the Allen key .
42 42 Program Application Needle position Stitch length Stitch width Program 01 2 thread chainstitch Joining fabric layers where a traditional pressed open seam is required. Also works well as a basting stitch for test fi tting garments. 3-4 3.5 Program 02 Cover stitch Sewing hems and fancy stitches.
43 43 Stitch width latch 22 ■ = top ® = bottom Looper disengaging level 9 Power table 50 ● = with ° = without Converter 28 ■ = with ® = without Thread tension The value refer to medium-heavy fabrics and normal polyester thread blue green pink yellow violet ® ▼● ® 5.
44 44 Program Application Needle position Stitch length Stitch width Program 10 2-needle, 3-thread assambly seam Joining and simultaneous serging of light, very stretchy fabrics. 2 5.5 Program 11 2-thread serging, narrow Serging light fabrics. 1.5 5.5 Program 12 2-thread rolled hem Serging very light fabrics.
45 45 Stitch width latch 22 ■ = top ® = bottom Looper disengaging level 9 Power table 50 ● = with ° = without Converter 28 ■ = with ® = without Thread tension The value refer to medium-heavy fabrics and normal polyester thread blue green pink yellow violet ■▲ ° ■ 5.
46 46 I mportant notes on sewing with the cover stitch The power table is marked with various units of measurement. The upper fi gures are in cm. The lower fi gures are in inches.
47 47 2. If sewing on a tubular item, i.e. pant or sleeve hem: Sew around tubular item, oversewing 4-5 stitches at the beginning of your seam ’ After the last stitch, turn the hand wheel towards you until the needles pierce the fabric and you have heard each needle ”click” (just before the needles are in the lowest position).
48 48 Stitch formation correction measures cover stitch Program 02 When all tensions are correctly set, the needle threads (green and blue) are just slightly visible on the underside of the fabric. The looper thread (violet) is situated loosely in between.
49 49 5-thread safety-stitch seam Program 09 Since the 5-thread safety stitch seam con- sists of the 2-thread chainstitch and the 3- thread overedge seam, you can refer to the correction possibilities of these seam below and on page 49.
50 50 4-thread overedge seam Program 07 When all tensions are correctly set, the loops of both looper threads (pink and yellow) are directly on the edge of the fabric. The needle threads (blue and green) are too loose, causing larger loops of needle thread on the underside of the fabric.
51 51 3-thread overedge seam narrow and wide Program 05 and 06 When all tensions are correctly set, the loops of both looper threads (pink and yellow) are directly on the edge of the fabric. The upper looper thread (pink) appears on the underside of the fabric.
52 52 3-thread fl atlock narrow and wide Program 16 and 18 The needle thread is too tight. Set the needle thread tension (blue) to a lower value. The upper looper thread (pink) appears on the underside of the fabric. Set the pink thread tension to a higher value.
53 53 2-thread fl atlock narrow and wide Program 03 and 04 When all tensions are correctly set, the loops of both threads are directly on the underside of the fabric. Note: The converter (see page 32) must be attached to sew the 2-thread fl atlock seam.
54 54 3-thread rolled hem Program 14 The upper needle thread (green) is too loose. Set the green thread tension to a higher value The upper looper thread (pink) appears on the underside of the fabric. Set the pink thread tension to a higher value and/or the yellow thread tension to a lower value.
55 55 3-thread rolled hem (folded) Program 15 The upper looper thread (pink) only partly loops around the fabric edge. Set the pink thread tension to a lower value and/or the yellow thread tension to a higher value. The upper needle thread (green) is too loose.
56 56 2-thread rolled hem Program 12 Note: The converter (see page 32) must be attached to sew the 2 thread rolled hem. The upper needle thread (green) is too tight. Set the green thread tension to a lower value and/or the yellow thread tension to a higher value.
57 57 2-thread rolled hem (folded) Program 13 Note: The converter (see page 32) must be attached to sew the 2 thread rolled hem. The upper needle thread (green) is too loose. Set the green thread tension to a higher value and/or the yellow thread tension to a lower value.
58 58 2-needle 3-thread assembly seam Program 10 Note: The converter (see page 32) must be attached to sew the 2-needle 3-thread assembly seam. The upper needle thread (green) is too loose. Set the green thread tension to a higher value. The lower needle thread (blue) is too loose.
59 59 Fabric Thread Stitch length Light fabrics: organdy , fi ne knitwear , taffeta, silk, lining fabrics Cotton no. 50 - 70 Synthetic thread no. 70 - 140 2.0 - 4.0 mm Medium heavy fabrics: cotton, tricot, linen, dress fabrics Cotton no. 40 - 60 Synthetic thread no.
60 60 Machine maintenance Cleaning the machine Switch off the electrical power Remove the waste container and open the looper cover and swivel plate. Disengage the upper blade (see page 30) and remove the presser foot and the needle plate.
61 61 Changing the upper blade Switch off the electrical power T o remove: Set the adjusting knob for seam width to 3.5 mm. Fasten the upper blade (see page 39) before loosening the fastening screw ( A ) with the wrench provided in the accessory box. Then remove the upper blade.
62 62 Changing the light bulb Switch off the electrical power Using the screw driver in the accessory box loosen the fastening screw to the sewing light cover 16 until the cover can be removed. Push the light bulb fully into its socket. Rotate counter clockwise through half a turn and remove.
63 63 Sewing problems and their solutions This machine has been developed with ease of operation in mind. No diffi cult or tricky set tings need to be made. Sewing problems of the kind described below may occur as a result of minor adjustment and operating errors.
64 64 Optional accessory Order No. Use Multi-purpose foot M 29 924 993 82-002 Foot, to which guides Hl, H2 and H3 can be attached. Lace and braiding guide Hl 29 924 993 82-003 Guide for applying lace or braiding (to the under side of the fabric). Hemmer guide H2 29 924 993 82-001 Guide for hemming/turns under one inch while serging.
65 65 Optional accessory Order No. Use MuIti-purpose foot C 29 924 993 82-017 For sewing on bands, elastic tape, elastic thread and fi shing line together with the various elastic tape inserts. Elastic tape insert 7.5 mm 29 924 993 82-034 For sewing on elastic tape with a width up to 7.
66 66 Specifi cations Maximum sewing speed 1300 stitches/min. Seam width 1.4 mm - 9.0 mm Cover stitch width 5 mm Stitch length 0.5 mm - 4 mm Presser foot exchangeable Lubrication manual Presser foot height 4.5 mm Overedge stroke 2.0 mm Needle system EL X 705, cat no.
Intellectual property Patents protecting this product are listed on a label positioned underneath the sewing machine. PFAFF and IDT (image) are registered trademarks or trademarks of VSM Group AB.
Parts of the coverlock 4852 31 Thread guides with color coding 32 T elescoping thread guide 33 Thread chain cutter 34 Thread spool stand 35 Thread spool pin 36 Cone thread adapter 37 Spool disc 38 Ele.
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VSM Group AB • SE-561 84 Huskvarna • SWEDEN www .pfaff.com 29 629 000-20D • English • Inhouse • © 2004 VSM Group AB • Printed in Sweden on environmental-friendly paper.
An important point after buying a device Pfaff coverlock 4852 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Pfaff coverlock 4852 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Pfaff coverlock 4852 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Pfaff coverlock 4852 you will learn all the available features of the product, as well as information on its operation. The information that you get Pfaff coverlock 4852 will certainly help you make a decision on the purchase.
If you already are a holder of Pfaff coverlock 4852, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Pfaff coverlock 4852.
However, one of the most important roles played by the user manual is to help in solving problems with Pfaff coverlock 4852. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Pfaff coverlock 4852 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
