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Brother EF4-N21 Manual

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Overlock Sewing Machine
N series
High Speed Single Needle
Overlock Sewing Machine
High Speed Twin Needle
Overlock Sewing Machine
High Speed Safety Stitch
Sewing Machine
EF4-N11, V41A, N21, V51A, MA4-N31, V61A 1/31
2001.9

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  Summary of Contents for Brother EF4-N21

  • Page 1 Overlock Sewing Machine N series EF4-N11 High Speed Single Needle Overlock Sewing Machine EF4-N21 High Speed Twin Needle Overlock Sewing Machine MA4-N31 High Speed Safety Stitch Sewing Machine EF4-N11, V41A, N21, V51A, MA4-N31, V61A 1/31 2001.9...
  • Page 2 Overlock Sewing Machine V series EF4-V41A Ultra high Speed Single Needle Overlock Sewing Machine EF4-V51A Ultra high Speed Twin Needle Overlock Sewing Machine MA4-V61A Ultra high Speed Safety Stitch Sewing Machine EF4-N11, V41A, N21, V51A, MA4-N31, V61A 2/31 2001.9...
  • Page 3 Option parts [Models EF4-N11, N21, MA4-N31, V41A, V51A, V61A] Model Device V41A V51A V61A Stitch number control ATC1 Automatic tape cutter Air suction + Thread release + Stitch number control ATC3 Air suction + Stitch number control ATC5 Horizontal (Installed on the table) Automatic tape feeder Vertical (Installed on the table) For single needle...
  • Page 4: Ef4-N11

    Specifications EF4-N11 - Sub−class Stitch width Device (mm) (mm) No. of No. of (mm) Differential Sub-class Applications Stitch type Needle Max. stitch needles threads Stitch width ratio gauge length 0.9 – 3.8 0.7 – 2.0 Bulky knit 0.4 – 2.4 1.1 –...
  • Page 5 EF4-V41A - Sub−class Stitch width Device (mm) (mm) (rpm) Type of feed dog (DC x 27) Max. speed Height of Pitch of feed Looper locus Attachment (standard) Needle size presser foot V41A 8,500 7,000 8,500 7,000 3 - Row 8,500 7,000 8,000 6,700...
  • Page 6: Ef4-N21

    Specifications EF4-N21 - Sub−class Stitch width Device (mm) (mm) No. of No. of (mm) Differential Sub-class Applications Stitch type Needle Max. stitch needles threads Stitch width ratio gauge length 0.9 – 3.8 0.7 – 2.0 0.9 – 3.8 0.7 – 2.0...
  • Page 7 EF4-V51A - Sub−class Stitch width Device (mm) (mm) (rpm) Type of feed dog (DC x 27) Height of Pitch of feed Max. speed Looper locus Attachment (standard) Needle size presser foot V51A 3 - Row 8,000 6,700 3 - Row 7,000 6,700 3 - Row...
  • Page 8 Specifications EF4-N21 - Sub−class Stitch width Device (mm) (mm) No. of No. of (mm) Differential Sub-class Applications Stitch type Needle Max. stitch needles threads Stitch width ratio gauge length Ruffling 0.8 – 3.2 0.8 – 2.8 with piping Ruffling 0.8 – 3.2 0.8 –...
  • Page 9 EF4-V51A - Sub−class Stitch width Device (mm) (mm) (rpm) Type of feed dog (DC x 27) Max. speed Height of Pitch of feed Looper locus Attachment (standard) Needle size presser foot V51A 3 - Row 7,500 6,500 Piping ruffler 3 - Row 7,000 6,500 Piping ruffler...
  • Page 10: Ma4-N31

    Specifications MA4-N31 - Sub−class Stitch width Device (mm) (mm) No. of No. of (mm) Differential Sub-class Applications Stitch type Needle Max. stitch needles threads Stitch width ratio gauge length 0.9 – 3.8 0.7 – 2.0 0.9 – 3.8 0.7 – 2.0 0.9 –...
  • Page 11 MA4-V61A- Sub−class Stitch width Device (mm) (mm) (rpm) Type of feed dog (DC x 27) Height of Pitch of feed Max. speed Looper locus Attachment (standard) Needle size presser foot V61A 3 - Row 7,500 6,500 Ruffler 3 - Row 7,500 6,500 Ruffler...
  • Page 12 Specifications MA4-N31 - Sub−class Stitch width Device (mm) (mm) No. of No. of (mm) Differential Sub-class Applications Stitch type Needle Max. stitch needles threads Stitch width ratio gauge length -5 Ruffling 0.8 – 3.2 0.8 – 2.8 with piping -5 Ruffling 0.8 –...
  • Page 13 MA4-V61A- Sub−class Stitch width Device (mm) (mm) (rpm) Type of feed dog (DC x 27) Height of Pitch of feed Max. speed Looper locus Attachment (standard) Needle size presser foot V61A 3 - Row 7,000 6,500 Piping ruffler 3 - Row 7,000 6,500 Ruffler...
  • Page 14 Specifications MA4-N31 - Sub−class Stitch width Device (mm) (mm) No. of No. of (mm) Differential Sub-class Applications Stitch type Needle Max. stitch needles threads Stitch width ratio gauge length 0.9 – 3.8 0.7 – 2.0 -5 Binding 1.2 – 5.0 0.7 –...
  • Page 15 MA4-V61A- Sub−class Stitch width Device (mm) (mm) (rpm) Type of feed dog (DC x 27) Height of Pitch of feed Max. speed Looper locus Attachment (standard) Needle size presser foot V61A Binding tape 2 - Row 6,500 6,500 guide Tractor foot 3 - Row 6,500 6,000...
  • Page 16: Gauge Parts List

    Gauge parts list [Models EF4-N11, V41A] Thin Medium Application Bulky Knit Blind hemming With chain land Without chain land (For small type) -3 S -3 (B) S -3 (C) S -5 H -3 S -3 S Sub-class -4 S -4 (B) S -4 (C) S -6 H -4 S...
  • Page 17 Gauge parts list [Models EF4-N11, V41A] Serging Ruffling Application Curing 2 Threads 3Threads W / Piping Sub-class -4 S -4 S -2 S -3 S -5 S -5 S -5 S -5 S S=Standard H=High-lift 1. Needle 151474-014 151474-011 S19269-001 S19271-001 S25536-001 S19291-001...
  • Page 18 Gauge parts list [Models EF4-N11, V41A] Bulky Knit Application Taping Back-tacking Soft chain (Taping) Sub-class -4 S -5 H -3 S -3 S -5 S -6 H -4 S -4 S S=Standard -5 S -5 S H=High-lift 1. Needle 151474-011 151474-014 151474-011 S25540-001 (3)
  • Page 19 Gauge parts list For zipper [Models EF4-N11, V41A] Stitch width 5 – 6 mm Ref. No. Part name Part code Q’ty Presser foot assy S34824-101 Main presser arm S46908-001 Presser arm S20298-001 Screw, pan M3.5 x 6 062350-616 EF4-N11, V41A, N21, V51A, MA4-N31, V61A 19/31 2001.9...
  • Page 20 Gauge parts list [Models EF4-N21, V51A] Thin Medium Thin Medium (For small type) Application New synthetic fiber With chain land Without chain land (Mock−safety) (Mock−safety) −4 H −4 H −4 (B) H −4 (C) H −5 (B) H −5 (D) H Sub-class −5 H...
  • Page 21 Gauge parts list [Models EF4-N21, V51A] Thin Medium Bulky knit Application (Mock−safety) (Mock−safety) (Mock−safety) −5 H −5 H −5 H −5 H −5 (B) H −5 (B) H Sub-class −6 H −6 H −6 H −6 H −6 (B) H −6 (B) H...
  • Page 22 Gauge parts list [Models EF4-N21, V51A] Heavy materials Ruffling Application Ruffling (mock-safety) (Tractor type) Mock−safety −6 E −6 E −6 (B) E −5 H −5 H Sub-class −7 E −7 E −7 (B) E H=High-lift E=Extra high-lift (mm) Needle gauge 1.
  • Page 23 Gauge parts list [Models EF4-N21, V51A] Ruffling w / piping Taping Bulky knit (Taping) Application (Mock−safety) (Mock−safety) (Mock−safety) −5 H −5 H −5 H −5 H −5 H −5 H Sub-class −6 H −6 H −6 H −6 H −6 H −6 H...
  • Page 24 Gauge parts list [Models EF4-N21, V51A] Application Bulky knit Back−tacking Sub-class 49−5 H 57−6 E 58−6 E −6 H −7 E H=High-lift E=Extra high-lift (mm) Needle gauge 1. Needle 151474−011 151474−014 S19303−201 (6) 2. Presser foot assy (S19286-001) S19302−001 (5, 6) S19303−201...
  • Page 25 Gauge parts list [Models MA4-N31, V61A] Thin Thin Medium Application 5 Threads 4 Threads (For small type) 5 Threads 4 Threads (For small type) −2 S −2 S −3 (B) −3 S −3 S −3 (C) Sub-class −3 S −3 S −4 (B) −4 S −4 S...
  • Page 26 Gauge parts list [Models MA4-N31, V61A] Medium thick Application New synthetic fiber 5 Threads 4 Threads 5 Threads −4 S −4 S −4 (B) H 63−5 (B) S Sub-class −5 S −5 S −5 (B) H S=Standard −6 H −6 H −6 (B) H H=High-lift −7 H...
  • Page 27 Gauge parts list [Models MA4-N31, V61A] Ruffling Application 5 Threads 4 Threads 5 Threads 4 Threads 5 Threads 4 Threads −4 S −5 S −4 S −5 S −5 S −5 S Sub-class −5 S −5 S −6 H S=Standard H=High-lift E=Extra high-lift (mm)
  • Page 28 Gauge parts list [Models MA4-N31, V61A] Ruffling w/ piping Taping Application 5 Threads 4 Threads 5 Threads 4 Threads 5 Threads 4 Threads −5 S −5 S −5 S −5 S −4 S −5 S Sub-class −6 H −5 S S=Standard H=High-lift E=Extra high-lift...
  • Page 29 Gauge parts list [Models MA4-N31, V61A] Taping Extra heavy Binding Application 5 Threads 4 Threads 5 Threads 4 Threads 5 Threads 4 Threads −4 S −4 S −3 E −5 E −4 S −4 S Sub-class −5 S −5 S −5 E −5 S −5 S...
  • Page 30 Gauge parts list [Models MA4-N31, V61A] Extra heavy Application 3 needles thin medium 5 Threads 4 Threads (For vertical pocket) −5 E −5 E −5 (B) E −5 H −5 (B) H Sub-class −6 E −6 E −6 (B) E S=Standard −7 E −7 (B) E...
  • Page 31 Gauge parts list [Models MA4-N31, V61A] Application 3 needles thin medium Sub-class S=Standard 99−5 H H=High-lift E=Extra high-lift (mm) 5, 2.2 Needle gauge 1. Needle (Q’ty) 151474−016 (3) S31981−001 (S19325-001) 2. Presser foot assy (Presser foot .F) S29148−001 Needle clamp assy S31979−001 4.

This manual is also suitable for:

Ef4-n11Ma4-n31