Brother EF4-V41 Manuals

Table of Contents

• 2

  Table of Contents
• 7

  Specification List )
• 19

  Mechanical Descriptions )
• 19

  Needle Bar Mechanism
• 20

  Under Looper Mechanism
• 21

  Over Looper Mechanism
• 22

  Double Chain Stitch Looper Mechanism (V61, V91, V92)
• 23

  Lid Knife Mechanism
• 24

  [§] Presser Foot Mechanism
• 26

  Feed Mechanism
• 28

  [I] Upper Feed Mechanism
• 32

  Lubrication
• 33

  Disassembly)
• 33

  Covers
• 34

  IZ1 Presser Foot Mechanism
• 35

  Knife Mechanism
• 36

  Under Looper Mechanism
• 37

  Lid Over Looper Mechanism
• 38

  [§] Double Chain Stitch Looper Mechanism
• 39

  Needle Bar Mechanism
• 40

  [I] Feed Mechanism
• 41

  II] Upper Feed Mechanism
• 44

  (Assembly)
• 44

  Upper Feed Mechanism
• 48

  IZ1 Feed Mechanism
• 51

  Needle Bar Mechanism
• 54

  1!1 Under Looper Mechanism
• 55

  Over Looper Mechanism
• 57

  Double Chain Stitch Looper Mechanism
• 60

  Knife Mechanism
• 62

  [I] Presser Foot Mechanism
• 65

  (Standard Adjustments)
• 65

  Adjusting the Height and Location of the Needle
• 66

  Lz1 Adjusting the Under Looper, the Movable Needle Guard, and Needle Guard (F)
• 68

  Rn1 Adjusting the Over Looper
• 69

  Adjusting the Chain Stitch Looper, Chain Stitch Needle Guards (B) and (F)
• 70

  [§] Adjusting the Backward and Forward Movement of the Chain Stitch Looper
• 71

  [§] Adjusting the Presser Foot
• 74

  Adjusting the Height of the Knife
• 75

  Adjusting the Height of the Feed Dog
• 78

  Adjusting the Positions of the Needle-Thread Take-Up and the Needle Thread Guide
• 79

  Adjusting the Position of the Looper Thread Take-Up
• 79

  Ill] Adjusting the Horizontal Feeding Timing (Position of the Level Feed Eccentric Wheel)
• 80

  H2L Adjusting the Standard Position of the Horizontal Feeding (Level Feed Adjust Arm)
• 80

  Adjusting the Horizontal Feed Amount
• 81

  Ml Adjusting the Standard of the Vertical Feeding
• 82

  Adjusting the Height of the Upper Feed Bar
• 83

  Adjusting the Clearance Between the Upper Feed Dog and the Lower Feed Dog
• 84

  Lll1 Adjusting the Vertical Feed Amount of the Upper Feed Dog
• 85

  Adjusting the Differential Ratio
• 86

  Adjusting the Clearance Between the Cloth Plate and the Needle Plate
• 87

  ( Troubleshooting )
• 87

  [)] Needle Thread Breakage (Overlockingl
• 88

  Lz1 Looper Thread Breakage
• 91

  Rn1 Needle Breakage
• 91

  Improper Thread Tension
• 91

  Improper Chaining-Off
• 92

  Puckering
• 93

  Slippage Cloth
• 93

  Double Scooping (Overlocking)
• 94

  ( Needle Size and Upper Looper )
• 95

  ( Materialthicknessandstitchwidth )
• 96

  Timing Gauge Table