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From the library of: Superior Sewing Machine & Supply LLC

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Содержание EF4-B561

Страница 1: ...SERVICE MANUAL FOR BROTHER MODEL EF4 8561 571 MA4 B581 BROTHER INDUSTRIES LTD NAGOYA JAPAN From the library of Superior Sewing Machine Supply LLC ...

Страница 2: ...ver looper mechanism 19 III Double chain stitch looper mechanism 20 I Knives mechanism 21 liD Feed and presser foot mechanism 23 1 Looper thread take up and thread guide mechanism 24 ID Double chain stitch looper thread take up and thread guide mechanism 25 ID Cover 26 6 STITCH LENGTH AND DIFFERENTIAL FEED ADJUSTMENT I 27 7 SEWING INSTRUCTION I 28 Single needle two thread 28 00 Single needle three...

Страница 3: ...se and 7mm in maximum stitch width are available for denim bulky and other thick materials 4 Blade engaging angle can be easily adjusted for sharp cutting performance 5 Oil level in the oil pan can be easily checked with the special oil guage on the front 6 Superb design and colour brighten working environment and ensure to lessen the operator s fatigue Most of the gauge parts expendable parts att...

Страница 4: ...eater 7 7 hi Cardigan Bulky sweater 003 3 3 II Blind hemming 4 9 Knitted underwear Blind 1 3 4 3 6 O J 1 8 6 1 6 II 5000 hemming _LV shirts 5 5 Tee shirts ruler 004 3 3 II Blind hemming 4 1 2 4 3 6 0 3 1 8 6 1 6 9 500 Knitted underwear Blind II _1 shirts hemming 5 5 Tee shirts ruler 005 3 3 II Serging 4 4 Trousers Edge 5 1 2 5 3 6 O J 1 8 4 1 6 II 14 5000 hemming Skirts 6 6 ruler 006 3 3 II Sergin...

Страница 5: ...ge tmateroall Attachment 009 5 7 Ruffling w piping Wrapper 1 3 5 3 3 0 3 2 7 5 1 6 11 5000 Coasts for women Ruffler J__j children Tape u n Negligee winder 010 3 7 3 n Thin medium taping 4 4 Knitted underwear Tape 5 1 3 5 3 6 0 3 1 8 6 1 6 II 11 5000 guide _jjj shirts 6 6 Tee shirts 011 5 5 II Bulky knit taping 6 14 Sweater Tape 1 3 6 2 5 0 4 3 6 7 2 5000 guide _jjj hi Cardigan 7 7 Bulky sweater Ex...

Страница 6: ...6 2 4 2 2 6 3 6 0 3 1 8 6 1 6 ll1 11 5000 Collared shirts Blouse 7 mock 7 024 5 II Thin medium 2 4 3 5 3 6 0 3 1 8 6 1 6 ll1 11 5000 Knitted underwear shirts Tee shirts 025 6 II Thin medium 2 4 3 6 3 6 0 3 1 8 6 1 6 ll1 11 5000 Collared shirts Blouse mock 026 4 4 n Bulky knit 5 2 4 1 8 5 2 5 0 4 3 6 7 1 6 II 11 5000 Sweater r DCX3 Cardigan Bulky sweater 027 5 5 II Bulky knit 6 2 4 2 2 6 2 5 0 4 3 ...

Страница 7: ...3 2 7 5 1 6 11 5000 Coats for women Ruffler J j children Tape no I Blouse winder 038 5 7 ijt Ruffling w piping Wrapper 2 4 2 2 5 3 3 0 3 2 7 5 1 6 11 5000 Coats for women Ruffler Jj children Tape n Blouse winder 041 5 5 Thin medium taping 6 2 4 2 2 6 3 6 0 3 1 8 6 1 6 I 11 5000 Knitted underwear Tape _jj shirts guide 7 7 Tee shirts 042 5 5 Thin medium taping Knitted underwear Tape 6 2 4 2 2 6 3 6 ...

Страница 8: ... 0 3 1 8 6 1 6 14 5000 Jumper I Pajamas 5 5 Coasts 064 3 3 Thin medium 4 2 4 3 4 3 6 0 3 1 8 6 1 6 14 5000 Jumper I Pajamas 5 5 Coats 065 5 5 Medium heavy 6 2 5 5 6 3 6 0 3 1 8 6 1 6 16 5000 Working dress In trousers coats 7 7 6 5 for women 066 5 5 Medium heavy 6 2 4 5 6 3 6 0 3 1 8 6 1 6 In 16 5000 Working dress I trousers coats 7 7 6 5 for women 067 4 Thin medium 2 5 2 4 3 3 0 3 2 7 5 1 6 14 500...

Страница 9: ... 4 2 4 3 3 0 3 2 7 5 1 6 14 5000 Blouse Ruffler n Negligee Tape 000 winder 075 5 Thin medium Wrapper Ruffling w piping 2 5 3 5 3 3 0 3 2 7 5 1 6 14 500 Ruffler n Coats for women Tape 000 children winder 076 5 Ruffling w piping Wrapper 2 4 3 5 3 3 0 3 2 7 5 1 6 14 500 Coats for women Ruffler 1 children Tap 000 winder 077 6 Thin medium Wrapper Ruffling w piping 2 5 5 6 3 3 0 3 2 7 5 1 6 14 5000 Ruff...

Страница 10: ...000 U Shirts guide 7 7 Tee shirts pajamas 084 5 5 Thin thick taping 6 2 6 3 6 0 3 1 8 6 1 6 16 5000 Knitted underwear Tape 4 5 In _IJ Shirts guide 7 7 Tee shirts pajamas 087 5 5 u Extra heavy A Denim 6 2 5 5 6 3 6 0 3 1 8 3 5 2 5 80 21 5000 Curtain 088 5 5 Extra heavy 6 7 2 4 5 6 3 6 0 3 1 8 3 5 2 5 21 5000 Demim In Curtain 089 5 Thin medium binding 2 5 3 5 3 6 0 3 1 8 6 1 6 14 5000 Coats for chil...

Страница 11: ...haft 0 may rotate to the direc tion indicated with arrow with under looper ec centric cam 8 under looper connecting rod C moves up and down Under looper 8 fitted into under looper holder t gets the oscillating movement with the intermediate action of under looper connecting lever 8 connected with under looper connecting rod Ct and under looper lever shaft 9 13 OVER LOOPER MECHANISM CD L _________ ...

Страница 12: ...s to double chain stitch looper mwith the intermediate action of longitudinal feed shaft and double chain stitch looper holder 0 2 Double chain stitch oscillating mechanism Chain stitch driving lever is conveyed the oscillating motion by under looper connecting lever 41 with the intermediate action of under looper connecting lever pin f chain stitch link 41 and chain stitch driving lever pin Its o...

Страница 13: ... arm CD is fitted with feed shaft 69 so that main feed arm fj and differential feed arm t get oscillating movements because these two arms are fitted with feed shaft 69 This oscillating movement becomes horizontal movement of main feed bar fD and differential feed bar CD with the movements of main feed link CD and differential feed link tD 2 Vertical feed mechanism The part being fitted with crank...

Страница 14: ... fulcrum presser bar lever shaft t thus main presser arm CD is released from the pressure of presser bar spring e 4 DISASSEMBLING PROCEDURES I COVER bill DCX I CXI3 Procedures Q ty of Turn the pulley until the needle bar is raised to the highest position and then turn out presser foot 0 above needle plate screw 2 Remove needles 8 2 3 Remove cloth plate 2 4 Remove cloth guide L 8 2 12 Q ty of screw...

Страница 15: ...ain feed dog t 6 Remove chain feed dog 0 uu j f Wr ll 01 Q ty of Procedures screw Loosen screw 0 and turn lower knife holder 8 Q ty of screw 6 Remove lower knife holder guide e 2 to the left direction then tighten it 2 Remove upper knife 8 7 Remove lower knife holder 8 as holding it by hand Pull out spring for lower knife holder 1 3 Remove upper knife holder C 4 Remove nut 8 5 Remove lower knife t...

Страница 16: ... Remove inside cover 0 Set over looper 8 to the left mostly 2 Remove over looper 8 Q ty of screw 2 G 14 Procedures 3 Remove looper thread take up L 4 Remove under looper holder 8 Q ty of screw 5 Remove over looper thread take up R and under looper thread take up R D 6 Remove under looper thread guide 8 Q ty of Procedures screw 3 Remove over looper driving lever and over looper holder guide assembl...

Страница 17: ...1 1 4 Remove chain stitch needle thread guide 8 B581 5 Remove face plate 8 4 Stopper spring it is naturally to be removed out 3 B581 15 Procedures Q ty of screw 6 Remove thread handler fj 1 7 Remove thread take up bracket 2 Put screw driver into the hole of double chain stitch looper take up and loosen set screw 8 Remove double chain stitch looper take up t 2 Procedures Q ty of screw 6 Remove need...

Страница 18: ...ance 5 Install needle thread take up supporter 0 to needle bar clamp 8 6 Install needle thread guide A 0 to face plate 8 7 Install needle thread take up f D to needle thread take up supporter 0 Normally it should be fastened in the center of its adjustable range Lower its position to increase the needle thread ten sion Raise its position to decrease the needle thread ten sion ISafety Stitch I Inst...

Страница 19: ...een the needle point and the top of needle plate to 11 mm when the needle is up highest The sewing machines of the high lift specifications must be adjusted to a distance of 11 5mm between them ISafety Stitch I Turn the pulley slowly lower needle slightly into needle plate and adjust it so needles will be in the center of needle plate slot by turning needle bar 13 In case of the single needle tigh...

Страница 20: ...dewise positioning ISafety Stitch I In case of standard specifications that distance is 4 7mm In case of high lift specifications that distance is 2 2mm 7 With the point of under looper in line with the center of needle make an adjustment so that the point of under looper will push needle 0 01 0 05mm i e slightly contact needle in the upward travel of needle However in case of sewing for thick mat...

Страница 21: ...h over looper lever shaft e and then temporarily fasten it Tum the pulley make sure that the machine smoothly 4 Insert over looper all the way into over looper holder 8 and temporarily fasten it Tum the pulley in order to make sure that the machine runs smoothly 5 Install needle plate 2 6 Select the correct distance A and B from the table below according to your machine specifications make an adju...

Страница 22: ...when over looper CD meets under looper the point of over looper will pass clear of under looper about 0 1 mm below its projected part 9 In case of above mentioned measurement is wrong direc 2 tion in the figure at right move over looper back or forth direction move over looper driving lever up or down and fasten them If there is a clearance of more than 0 1 mm in direc tion stitches may skip due t...

Страница 23: ... when the looper point is in line with the needle center on the needle s upward travel the looper point will be at about 0 to 0 05 mm from needle and then fasten double chain stitch looper holder Longitudinal positioning When stitch skips occur adjust it that the looper point will hit needle about 0 05 to 0 1 mm deep 6 Install double chain stitch needle guard F 8 to that of B i in order to make cl...

Страница 24: ... until needle bar is raised to the highest position fit nut on upper knife driving arm Q 10 Temporarily fasten upper knife CD in upper knife holder 11 Temporarily fasten upper knife holder fD on the upper knife driving arm Q Toutch upper knife to lower knife lightly 12 Loosen screw and bolt for lower knife holder support 0 so as to fit lower knife face and upper knife face and temporarily tighten ...

Страница 25: ...feed dog In case of thicker thread and knitting wool and or chaining off hardly come out adjust chain feed dog to a height of 0 3 0 5mm below main feed dog 3 Turn the pulley until under looper to the left mostly temporarily fasten main feed dog on main feed bar O 4 Temporarily fasten differential feed dog 8 on differential feed bar C 5 Install needle plate on needle plate support bracket 6 Turn th...

Страница 26: ...resser foot t on main presser arm In case of safety stitch install presser foot 0 to presser foot supporter 0 with pin 1ZJ LOOPER THREAD TAKE UP AND THREAD GUIDE MECHANISM Procedures 1 Install looper thread take up L 0 to under looper lever shaft 8 2 Install over looper thread take up R C and under looper thread take up R 8 to over looper lever shaft 3 Install under looper thread guide t to thread...

Страница 27: ... the pulley until needle bar is raised to the highest position The below items C and 3 should be taken simul taneously 5 Set double chain stitch thread take up O at a point where thread handler 8 is in the center of the slot Q ty of screw 2 6 Adjust the distance between the top end of double 2 chain stitch thread take up 0 and thread take up bracket to 6mm and fasten it When double chain stitch th...

Страница 28: ...allel to machine body and has a clearance about O Smm Overlock Stitch I ISafety Stitch I about 0 5 mm Q ty of screw 2 2 2 5 Make an adjustment so that when upper knife 8 is down lowest there is a clearance of about O Smm between front cover 8 and upper knife e Make an adjustment so that front cover will be between upper knife e and double chain stitch looper and their clearance will be as shown ab...

Страница 29: ...er on the scale which represents your desired stitch length 4 Retighten nut 8 securely 12J DIFFERENTIAL FEED ADJUSTMENT Differential ratio produced by the movement of differential feed arm is to be dicided depending on normal stitching stretching and shirring Calculation method of differential ratio Differential ratio The scale on differential feed arm The scale on main feed arm In case of the max...

Страница 30: ...n 1 Wool polyester Cotton 60 2 11 1 3 3 6 18 28 8 18 thin trouser fabrics Wool polyester 2 medium thick trouser fabrics 3 Knit fabrics jersey Wooly nylon 1 1 5 2 3 10 20 15 25 Note on Item 1 Edges tend to curl when sewing thin materials So decrease the hemming width to about 3 to 4mm and reduce the thread tensions to such an extent that the stitches will not be out of shape Better stitches can be ...

Страница 31: ...tes on Items I to 3 Stitches will change when the over looper thread take up R is raised or lowered as shown below Be careful not to lower the thread take up so much because stitches at high speed will become different at low speed or vice versa Raise when thread is tense Lower when thread is loose If the work becomes damaged 1 Decrease the presser pressure to 2 to 3kg or by about I2 to IS screw t...

Страница 32: ...r to 0 to 0 03mm Note on Item 6 Precautions on blind hemming 1 Sew at constant speed 2 Do not pull the work with your right hand If the work is pulled stitches will be made away from the desired line 3 Push a thicker part of material under the presser foot with your left hand Machine adjustments 1 Adjust the presser pressure to 2 to 3kg or by about 12 to 15 screw threads 2 Adjust the clearance bet...

Страница 33: ...me tension may be used for sewing with synthetic and cotton threads Note on Item 3 Make the same adjustment as mentioned in Item 5 for three threads Note on Item 4 If the over looper thread tension is too small double needle four thread stitches may sometimes be made In such a case raise the over looper thread take up R to decrease thread delivery Note on Item 5 When sewing jersey with chemical th...

Страница 34: ... threads Use gauge parts for denim specification 8 TROUBLE SHOOTING THREAD BREAKAGE Overlock Stitch Needle CHECK POINT ADJUSTMENT PAGE 1 Wrong threading Refer to Threading diagram l 2 Excessive pressure of tension disc Adjust to proper pressure 28 l 3 Poor thread quality Use thread of good quality l 4 Needle groove or needle eye poorly finished Change needle for a good one l 5 Wrong position of lo...

Страница 35: ...r has flaw Change it for a new one or smooth surface 20 with oil stone or buff Blunt Flaws 9 Wrong adjustment of needle guard Adjust to proper clearance between needle 21 and needle guard Clearance 10 Wrong timing of needle and looper Adjust to proper timing 21 121 THREAD BREAK Looper Thread CHECK POINT ADJUSTMENT Wrong threading Refer to threading diagram l 2 Excessive pressure of tension disc Ad...

Страница 36: ...over looper 4 Incorrect height of needle bar Adjust to proper height 17 l In case of skipping between over looper and under looper 1 Large clearance between under looper and over Adjust to proper clearance 20 looper l 2 Top of over looper blunt or bent Chnange it for a new one or smooth with 19 oil stone or buff Blunt In case of skipping between under looper and needle 1 Large clearance between un...

Страница 37: ...d movement of looper Large clearance between looper and needle Adjust to proper position 2 Wrong position of needle guard 3 Top of looper blunt or bent Adjust to proper position clearance Change it for a new one or smooth with oil stone or buff Blunt u Flaws 4 Wrong timing of double chain stitch looper Adjust to proper timing 35 Standard specifications 1 5 mm High lift specifications 1 3 mm PAGE 3...

Страница 38: ...ressure of tension disc Adjust to proper pressure 28 4 Wrong position of thread take up Adjust to proper position 24 25 I WRONG CHAINING OFF Overlock Stitch CHECK POINT ADJUSTMENT PAGE 1 Wrong threading Refer to thread diagram 2 Excessive pressure of tension disc Adjust to proper pressure 28 l 3 Too weak pressure of tension disc Adjust to proper pressure 28 l 4 Wrong position of looper thead take ...

Страница 39: ...t 9 Wrong timing between needle and looper Adjust to proper timing 21 1ZJ EXCESSIVE WRINKLES CHECK POINT ADJUSTMENT PAGE 1 Excessive pressure of tension disc Adjust to proper pressure 28 2 Needle size too big Change it for a proper one suitable to j needle and materials 3 Wrong differential ratio Adjust to proper ratio 27 4 Bight too wide Adjust to proper bight 5 Knives are not sharp Change it for...

Страница 40: ... From the library of Superior Sewing Machine Supply LLC ...

Страница 41: ...MEMO n _ From the library of Superior Sewing Machine Supply LLC ...

Страница 42: ...HER INDUSTRIES LTD HEAD OFFICE N0 35 9 CHOME HORITA OORI MIZUHO KU NAGOYA JAPAN TELEX BROTHER J59743 59908 58870 I 8030034 March 1978 Printed in Japan From the library of Superior Sewing Machine Supply LLC ...

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