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Brother EF4-B956C, Instruction Manual

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Brother EF4-B956C Instruction Manual Download Page 18

From the library of: Superior Sewing Machine & Supply LLC

Summary of Contents for EF4-B956C

Page 1: ...INSTRUCTION MANUAL FOR BROTHER MODEL EF4 B956C Ultra Hig h Speed Overlock Sewing Machine BROTHER INDUSTRIES LTD NAGOYA JAPAN From the library of Superior Sewing Machine Supply LLC ...

Page 2: ...s H r L Adjusting itch width H I Adjusting stitch lt ngth 9 Adju Ling diffcrc tial feed 9 4 Adjustment 10 Al llt ight of lll l dlt lf Bl Relation hl t l l L ll llt t dk and llll kr loopt r Hl Cl ln talling nt edil guard rear 10 Dl ln talling lll l dk guard front II El Relation of needk with under and on r l11opt r 11 Fl ln talling and nwinlt mtncl of lmin s 11 1 5 Trouble shooting 1 Al Thn ad brea...

Page 3: ...DC X l 7 9 11 1 1 16 Push button type scak on fact plate l l pn scnts stitch length By lc cr moving in l rlical direction gathering and slrl lrhing can bt obta ined even in sewing operation 11ppcr knife L shapc d carbicil 1ip1wd Lo er knife flat shrqwd skel Semi submergl d Qf this machine there arc the following Sllh ciasSt S 1 aiJabil Type 0 credging Blind hemmin I St rging 1 Sub cl ss 09C 11C O ...

Page 4: ...t inahle Ample space on the cloth plate allows easy sewing operation Oil level in the oil reservoir is shown on the special oil gauge on the front side of the machine Lubrication can be easily checked through the oil window in the top co er Optional needle cooler emmres perfect sewing operation even with synthetic materials and threads at the high speed of 6 500 stitches per minute Colour combinat...

Page 5: ... Screw for cushion base I I I I ___ r e d 2 7 l t 26i Bolt hole for bottom board l _ Collar for I Centre of bottom board machine pulley I I 1 Bottom board _ I 275 Fig 1 Figures are in mitimeter D Oiling draining and maintenance Fig 2 Fig 3 Oil is drawn nul of the machine prior to its shipment Before operating the machine therefore remove the oil filter cap shown in Fig 21 and pour oil into lhe mac...

Page 6: ... he machiII ith machinl mock C it is equipped with the needle cookr de icc In order to get the good se ring result on tlw resin treated materials such as polyester jersey and tricot etc or ith the synthetic threads such as nylon Jnd Dacron it will be advantageous to usc the needle cooler de ice 1 Operating procedure Tank I i lUr the siliwnc oil into the lank appro imatelr 1 S 111 e lp ci tr lOcc i...

Page 7: ... set up at the positicni that he ent hole is higher than tht oil levc l as shown in Fig 7 hen you pull tlw tube Point I tn the left as shown in Fig 9 the tank and felt portions will he separated thus the tank can be cletatchable L ogt tht r with top covt r Fig 9 F M achine operating direction The proper operating direction of this machine is clockwise as viewed from the pulley side G Installing ne...

Page 8: ...s and three threads because diffpn nccs between both cases are existed as in Figure A and B Stitches El3 for B956 0l Three threads overeding tension Figure 13 El3A for 8956 09 Three threads blind hemming tension Figure 1 Jl E12A for 8956 11 Two threads serging tension Figure El3 or E13A can be obtained ith with readjusting the adjusting scrt w El3A Fig 13 EJ A Fig 14 El2A Fig 15 In ltst of EJ J th...

Page 9: ...ing thread tension screws t As shown in Fig 17 H the highest position of the needle it is the standard position of the looper thread take up and thread guide for three threads use In this case the position of under looper thread guide shows in 13 is for cotton thread and J for synthetic thread As shown in Fig 18 al the highest po ition of the needle it is the standard position of the looper thread...

Page 10: ...e top of the feed clogs is le C l with the surface of the ncc dk plate Fig 21 Stitch wtidth is dependent on cloth trimming idth and the tongue of the ncccllc plate Adjust the trimmin width as follows Pig 22 1 Hemm e the upper knife 2 TiJ htcn the set screw A temporarily so that the lower kni fe mar come to the point where desired trimming width may be obtained Loosen the screw B and adjust the con...

Page 11: ... l or gather by loosening the screw A shown in Fig 26A and moving the len r up or down as required Normal feed is obtained b setting the lever s mark in line ith the ma rk on the scale If the lever is lifted up name ly to sign you will gel gathering If clown lo sign you ill gel st retching After adjustment is completed please make sure to tighten the screw secure lr In the case to require la rger ...

Page 12: ...looper is determined itg height when it is inserted all the way into the looper holder The relation between the point of the under looper ami the IK Clit in its upward travelling is shown in Fig 2HC Also tt this time installation will be made so as to provide nn clem ance between the needle scoop and the tip of under looper The under looper should be installed so as to he provided 2mm nf inclinati...

Page 13: ...t 0 1 mm Under looper 4 5mm j Fig 30 Fig 31 Fig n shm s the nwasw emt nt of thC o l l nopC r setting fnr y ll refer nn F Installing and maintenance of knives Fig 21 75 __ Fig 32 23 Surface of needle plate 1 4 I 90 i I Fig 33 lount the lo er knife to the lower knife holder so that its edge is len with the needle plate lnst lll the upper l nife so that its front edge is O i 0 7mm bdow tlw L dge of t...

Page 14: ... B Skip stitching Cause Remedy Cause Remedy Cause Remedy Cause Remedy Cause Remedy Cause hong threading Refer to Threading l agc 6 Point of looper out of shape Resharp with oil stone or replace Needle point blunt or bent Replace Needle improperly fitted Refer to Installing needle Page 5 Needle and needle guard out of proper relation Refer to Installing needle guard age 10 Needle gets hot Remedy Us...

Page 15: ...or needle Remedy Use needle or thread uf the right size Cause rong thre tding Remedy Refer to Threading Wag e 6l F Poor trimming performance Cause Lower knife worn out Remedy Re sharpen Refer to Fig 33 Page II Cause Upper and lower knives installed improperly Remedy Refer to Installing and maintenance of knives Page 11 Cause Spring pressure on lower knife not right for materials to be trimmed Reme...

Page 16: ...ogs and Height of feed dogs Page 8 Cause Knives blunt Remedy Refer to Installing and maintenance of knives Page 11 Cause Cloth trimming width and stitch tongue of needle plate out of proportion Remedy Adjust trimming width to needle plate or replace needle plate Cause Needle too thick Remedy Use proper needle for materials and threa l I Needle produces to large hole Cause Needle point blunt Remedy...

Page 17: ... A lK 4 1 i 11 il 1 24 A 1 A 1 PARTS LIST for EF4 B956C INDEX A_ A M7 fl 41 i 4K c 11 50 11 1 IH F 67 1_1 c_ 1 E C G 1 11 IH 1 7 I II 2 1 E _19 _ E 1 From the library of Superior Sewing Machine Supply LLC ...

Page 18: ... 9 _ _ _ lT From the library of Superior Sewing Machine Supply LLC ...

Page 19: ...A 11 12 95 l2 94 _ m A 85 IJ e a u PARTS LIST for EF4 B956 01 C 17 From the library of Superior Sewing Machine Supply LLC ...

Page 20: ...B 18 From the library of Superior Sewing Machine Supply LLC ...

Page 21: ...c U _ 1 H 1 f C L l r 10 19 52 21 C 1 C I COl l 52 C J _ _ 19 23 From the library of Superior Sewing Machine Supply LLC ...

Page 22: ... 14 0 01 I 14f IJ 0 01 1 j IU 5 0 01 t l itr ffi f OI imm 1 12i 1 1 101 6 1 01 1 12 1 o OJ I _I I X _lll i 1 0 UI HI ll 11 1 J 10 0 1 1 11 I l lfoi6 Hl OI 140774 0 140771 01 Jori ili 001 i i il h 20 p Y 1 l iftonK Slide 1 loK k F 1 lla G od 01_ 1 1 1 _f l 1 4_ illi hll S l_ Screw f OC 1 114 iHI Sew From the library of Superior Sewing Machine Supply LLC ...

Page 23: ...r Ft ut Lifter Lc cr I J i ll l U UI Jtnuu nr f iK I l4 13l5 0 IJI St t Scn t f r l U 1JoC HK SU 0 Ot AciJU lt f fur E Z 11 C llll277 101 ut fur E tl I IIOI ll II II Stupvc or Sc rt w f r E ri Wii ti tHU t rt fur E l lUlltn tHl Pn _ r fnut t ham Sh1 dd 4Jo l I IIHO I CIIII l l l Wf Fu l tf IW 161 H Ill St l r fur E J t ti I I IH Y IIUI itlO 01 W t h t r fur I 37 110 117 U Ul C f I HII fl10 t S JUi...

Page 24: ... l C rr JL a s I 2 32H B 7 uu j i 22 0 I I I I I I __ 25 26 From the library of Superior Sewing Machine Supply LLC ...

Page 25: ...o 1 1 6 ill l ol77 0 01 Vm l Tubr tAl 6 30 I lll i l f t O OI Oal F C dmt l apt 1 ll t l 001 Otl Ft echn Pt1 tIll I ll ki I t C11 t nat l 23 41 tnu t l ariN l cktuA fhr c 1 m l lubt tt t li ttl Sot l u w fHr Hi I m J 16 ri 15 Hrm Wht t l t fC fur c a t t fur I l ump 1 11n I um1 c r hnh lluwd l ln l t ulhu tnr f Hi I t n w ful 49 uhurchn th l uum Sh h ui I JFdna nc l mnv t l uruu l n t l Oil l t1h ...

Page 26: ...H _ C 1 24 r J J __ I 21 28 q 24 From the library of Superior Sewing Machine Supply LLC ...

Page 27: ...005 0 1 I t a ur ocu A mhl SH I Uli CUU1 J PARTS LIST for EF4 B956 09C 1 his chan Ohuws Lhc differem I Drt from Model EF U9 6 01C Ottu r p tni il 1rc sa mt EF a B956 0lC Ref l uj_ n _ f r u L J 5 lkt S r W fur J 6 f 1 c_ f rC S o4 1 F M c Omm ha ld Ll J i S t SUC A for J 9 J t shc r for 1 7 O ty l n11 Nu J 9 J r _ r t oot flm pnn c l I J 1 1 Jr r P udt S11 t th Tt n tut li J J I 1 f r o S Ser Font...

Page 28: ... i i Set Screw Sui u m _I 7 i l oHKI n l lah r h ho ad 7 ili 7 li z 1 a l z 1n t mThe parts with mark e are in accessory box 1 pee 1 ill The following parts are enclosed in the accc o ory box for our packing cmweniencc Ref No A 18 A 19 A 52 A 53 A 82 A 87 26 J lv From the library of Superior Sewing Machine Supply LLC ...

Page 29: ...MEMO From the library of Superior Sewing Machine Supply LLC ...

Page 30: ...MEMO From the library of Superior Sewing Machine Supply LLC ...

Page 31: ...118 956 192956 0 14 Printed in Japan From the library of Superior Sewing Machine Supply LLC ...

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