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Pfaff coverlock 4852, Owner'S Manual, Page: 9 / 72

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Pfaff coverlock 4852 Owner'S Manual Download Page 9

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Sewing problems and their solutions  ...................................................................... 61

Specifi cations  ............................................................................................................. 64

Spool dise  ................................................................................................................... 10

Spool holder  ............................................................................................................... 9

Stitch formation correction measures  ..................................................................... 46 - 56

Stitch length adjustment knob  ................................................................................. 38

Stitch length, adjusting  ............................................................................................. 38

Stitch width latch, swivelling  .................................................................................... 31

Telescoping thread guide  .......................................................................................... 9

Thread chain cutter  .................................................................................................... 29

Thread chart  ............................................................................................................... 57

Thread guide, clip on .................................................................................................. 10

Thread net ................................................................................................................... 9 

Thread tensions, setting ............................................................................................. 39 

Thread unreeling disc ................................................................................................. 9 

Threading aid for the 2 thread chain stitch looped/cover stitch looped  ............... 19, 21

Threading paths/overview  ........................................................................................ 26 - 28

Threading the 2 thread chain stitch looped/cover stitch looped (violet)  .............. 18 - 21

Threading the lower overedge looper (yellow)  ....................................................... 16, 17

Threading the needle(s)  ............................................................................................ 22,23

Threading the upper overedge looper (pink) ........................................................... 15  

Threading, important note ......................................................................................... 24 

Threading/Thread guides ........................................................................................... 14 

Upper blade, changing ............................................................................................... 59 

Upper blade, disengaging  ......................................................................................... 30 

Upper blade, securing  ............................................................................................... 39

Waste container  ......................................................................................................... 8

Contents

Summary of Contents for coverlock 4852

Page 1: ...Owner s manual coverlock 4852...

Page 2: ......

Page 3: ...ivel plate 13 Adjusting knob for seam width 14 Seam width viewing window 15 Needle holder 16 Sewing light cover 17 Adjusting knob for presser foot pressure 18 Upper overedge looper 19 Lower overedge l...

Page 4: ......

Page 5: ...the sewing machine to the nearest authorized dealer or service center for examination repair electrical or mechanical adjustment Never operate the sewing machine with any air openings blocked Keep ven...

Page 6: ......

Page 7: ...s simple to operate as this instruction manual is to follow Before you start sewing please take the time to read these instructions carefully It is certainly time well spent and is the best way to fin...

Page 8: ...ot control connecting 7 Light bulb sewing lamp changing 60 Loopercover 8 Lubricating the machine 58 Machine cover 6 Maintenance 58 60 Needle holder 13 Needle inserting tool 13 Needle plate disengaging...

Page 9: ...ad net 9 Thread tensions setting 39 Thread unreeling disc 9 Threading aid for the 2 thread chain stitch looped cover stitch looped 19 21 Threading paths overview 26 28 Threading the 2 thread chain sti...

Page 10: ...10 Needle inserting tool 11 Wrench 12 Replacement upper blade 13 Edge guide Further accessories The following accessories can be found behind the swivel plate 12 1 Converter 2 Tweezers 3 Allen key Ma...

Page 11: ...e wall outlet Foot controls to be used AE040 EU AE044 Australia AE046 United Kingdom AE043 USA Canada Master switch When you turn on the master switch 38 the sewing lamp is illuminated The machine is...

Page 12: ...off as soon as the looper cover or swivel plate 12 is opened for safety reasons i e sewing with the machine is no longer possible Waste container Insert the upper latch of the waste container 45 into...

Page 13: ...threads generally unwind too quickly from the thread spool Thread nets have been included to allow easy use of these threads Pull the thread net located in the accessory box over the spool from below...

Page 14: ...e the thread net and or the thread unreeling disc if needed Presser foot lifter The presser foot can be raised and lowered using the presser foot lifter 43 The maximum vertical lift of 6 5 mm for the...

Page 15: ...hest position by turning the hand wheel towards you Raise the presser foot and press lever A at the rear of the presser foot holder The presser foot will be released automatically from the holder Pivo...

Page 16: ...The different needle positions are depicted in a schematic drawing in the instruction manual Also refer to the examples above and below Insert the needle s as shown on the program overview see pages...

Page 17: ...dle Loosen the fastening screw of the needle without removing it with the Allen key behind the swivel plate and pull the needle down to remove To insert Insert the needle into hole E of the needle ins...

Page 18: ...front following the colored threading paths Lift the carry handle 3 upwards Thread through the underside of the carrying handle and through the rear thread guides 44 using both hands to pull the threa...

Page 19: ...equence of 1 to 8 Note To make this task easier use the tweezers which can be found behind the swivel plate Thread through the thread guides 1 to 7 which are marked with a pink dot Thread from the fro...

Page 20: ...edge looper yellow Turn the handwheel towards you until the lower overedge looper 19 is on the extreme right Thread in a sequence of 1 to 10 Note To make this task easier use the tweezers which can be...

Page 21: ...redge looper C threading point 10 Press lever A downwards and hook the thread into guide B Please also refer to the drawing below Note The lever returns automatically to its position as soon as you st...

Page 22: ...stitch looper violet for the chainstitch Turn 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 To make this task easier...

Page 23: ...hread chainstitch looper and the cover stitch looper threading point 11 Push lever A upward and hook the thread into slot B Also refer to the drawing below Note The lever returns automatically to its...

Page 24: ...stitch looper for the cover stitch violet Prog 02 Turn the handwheel towards you until the two thread chainstitch looper 20 is on the extreme right Thread in a sequence of 1 to 10 Note To make this ta...

Page 25: ...ugh eye C of the two thread chainstitch looper and the cover stitch looper threading point 10 Press lever A upward and hook the thread into slot B Also refer to the drawing below Note The lever return...

Page 26: ...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 th...

Page 27: ...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 Note To make this task easier use the tweezers which can be found be...

Page 28: ...thread and then rethread the needle threads Changing a spool on a threaded machine Cut the threads off close to the spool and replace with new spools Tie together the threads which are still in the m...

Page 29: ...r 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 Slide the needle threader down to the needle eye and press...

Page 30: ...ading sequences Program 01 2 thread chainstitch Program 03 2 thread flatlock narrow Program 11 2 thread serging narrow Program 12 2 thread rolled hem Program 13 folded 2 thread rolled hem Program 02 c...

Page 31: ...ge narrow Program 14 3 thread rolled hem Program 15 folded 3 thread rolled hem Program 16 3 thread flatlock narrow Program 07 4 thread overedge seam Program 06 3 thread overedge wide Program 17 3 thre...

Page 32: ...ser foot pressure on the machine is suitable for medium heavy fabrics The presser foot pressure does not need to be adjusted for most fabrics If you are working with light or heavy fabrics then you ma...

Page 33: ...thread chain and raise the presser foot Remove the thread chain carefully from the swiveling stitch width latch 22 Pull the thread chain forwards and clamp it under the spring Butt the fabric up agai...

Page 34: ...e Push the knob for lowering the upper blade 27 fully to the right To lower the upper blade turn the knob towards you until the upper blades clicks into place below The upper blade is now disengaged E...

Page 35: ...titch 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 wid...

Page 36: ...ace Push the tip of the converter into the back side of the upper overedge looper until it clicks into place and push the converter onto the overedge looper bracket Position the upper overedge looper...

Page 37: ...o tight move the movable upper blade 23 to the left by turning the seam width adjusting knob downwards Note The top row of numbers on the dial refers to the seam width of a standard 3 thread overedge...

Page 38: ...wer the swiveling stitch width latch see page 31 and disengage the upper blade see page 30 Ensure that the upper blade is disengaged by turning the handwheel towards you Disengage the upper overedge l...

Page 39: ...machine to its previous settings after sewing with the cover stitch or two thread chainstitch Open the looper cover and remove the power table Move the looper disengaging lever to the right thus re e...

Page 40: ...the rear feed dog Note The function of the differential feed also depends on the set stitch length and the type of fabric being used Set the regulator wheel for the differential feed 41 to 0 5 At this...

Page 41: ...owever you should always test your setting first on a piece of scrap fabric Type of fabric effect Differential feed setting gather 2 0 normal 1 0 stretch 0 5 Very light fabrics silk satin poplin taffe...

Page 42: ...ser foot and move the needle s to the highest position Remove the presser foot and open the swivel plate Press down the needle plate disengaging lever 26 The needle plate 11 is raised out of its mount...

Page 43: ...er be adjusted once the upper blade is secured Setting thread tension The following pages contain directions for setting thread tensions for all programs Adjust the tension by turning the tensioning w...

Page 44: ...m 2 5 5 Program 04 2 thread flatlock wide Serging medium heavy fabrics Joining stretch fabrics with a flatlock seam 2 5 5 Program 05 3 thread overedge narrow Serging light easily frayed fabrics 2 5 5...

Page 45: ...wer table 50 with without Converter 28 with without Thread tension Thevaluerefertomedium heavyfabricsandnormalpolyesterthread blue green pink yellow violet 5 0 2 0 6 0 6 0 1 0 1 5 5 0 1 5 5 5 4 0 3 0...

Page 46: ...rging very light fabrics Decorative edges 1 2 5 5 Program 14 3 thread rolled hem Serging light to medium heavy fabrics Decorative edges 1 2 5 5 Program 15 Folded 3 thread rolled hem Serging light to m...

Page 47: ...vel 9 Power table 50 with without Converter 28 with without Thread tension Thevaluerefertomedium heavyfabricsandnormalpolyesterthread blue green pink yellow violet 5 0 4 0 1 0 4 0 1 0 1 5 6 0 4 0 4 0...

Page 48: ...a one inch 2 5 cm fabric width to sew a finished hem of 3 4 inch 2 cm Note Set the seam width at 3 5 cm To start sewing Raise the presser foot and place the fabric under the presser foot so the needle...

Page 49: ...sory box into the guide holder A from the left The edge guide can be set as required by sliding it to the left or right After the second click tum the handwheel away from you until the needles are in...

Page 50: ...n the underside of the fabric The looper thread violet is situated loosely in between The right needle thread green is too loose causing large loops on the underside of the fabric Set the green thread...

Page 51: ...ists of the 2 thread chainstitch and the 2 thread flatlock you can refer to the correction possibilities of these seam below and on page 51 Note Attach the converter see page 32 when sewing a 4 thread...

Page 52: ...of needle thread on the underside of the fabric Set the blue and green thread tension to a higher value The upper looper thread pink appears on the underside of the fabric Set the pink thread tension...

Page 53: ...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 The needle thread is too loose causing loops on the underside of the fabr...

Page 54: ...ad 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 The lower looper t...

Page 55: ...d to sew the 2 thread flatlock seam The needle thread is too loose or the lower looper thread yellow is too tight Set the relevant needle thread tension to a higher value and or the yellow thread tens...

Page 56: ...he 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 The lower looper thread yellow appear...

Page 57: ...thread tension to a lower value and or the yellow thread tension to a higher value The upper needle thread green is too loose Set the green thread tension to a higher value The lower looper thread yel...

Page 58: ...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 The lower looper thread yellow is too tigh...

Page 59: ...t 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 The lower loope...

Page 60: ...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 Set the blue thread tension to a...

Page 61: ...linen dress fabrics Cotton no 40 60 Synthetic thread no 70 140 2 0 4 0 mm Heavy fabrics tweed suit fabrics denim heavy cloth Cotton no 30 50 Synthetic thread no 70 140 2 0 4 0 mm Knitwear Cotton no 4...

Page 62: ...the differential feed and the looper area Lubricating the machine Switch off the electrical power Move the upper overedge looper into its highest position Lubricate the points shown above with the oil...

Page 63: ...y box Then remove the upper blade To insert Attach the new upper blade and gently tighten the fastening screw Then turn the handwheel until the upper blade is in the lowest position In this position t...

Page 64: ...cover can be removed Push the light bulb fully into its socket Rotate counter clockwise through half a turn and remove Guide the new light bulb max 15 W into the socket and twist until both pins on th...

Page 65: ...used incorrectly threaded Insert new needle see page 13 Insert needle correctly see page 13 Use needle system EL X 705 Thread properly see page 14 23 Stitch formation faulty Incorrect setting of threa...

Page 66: ...ace on the top side of the fabric Use transparent presser foot F from the accessory box Flat felled seam guide F4 29 924 993 82 009 Guide for sewing flat felled seams Use transparent presser foot F fr...

Page 67: ...guiding and sewing in piping and welting Accessory holder 29 924 993 82 021 Holder to which the following accessories together with the retaining screw and the swiveling arm can be attached Retaining...

Page 68: ...edle siw 80 12 90 14 Number of threads 2 3 4 5 Dimensions width x height x depth 355 x 290 x 300 mm Weight 8 6 kg Packing contents 1 machine 1 foot control 1 instruction manual guarantee card 1 waste...

Page 69: ...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...

Page 70: ...pin 36 Cone thread adapter 37 Spool disc 38 Electrical power master switch 39 Machine socket foot control 40 Handwheel 41 Regulator wheel for differential feed 42 Stitch length adjustment knob 43 Pres...

Page 71: ......

Page 72: ...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...

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