Brother FS50 Manuals

Manuals and User Guides for Brother FS50. We have 1 Brother FS50 manual available for free PDF download: Service Manual

Brother FS50 Service Manual

Brother FS50 Service Manual (134 pages)

FOR COMPUTERIZED SEWING MACHINE; LOW-END COMPUTER SERIES

Brand: Brother | Category: Sewing Machine | Size: 9.64 MB

Table of Contents

Table of Contents
4
1 Outline of Mechanism

10
- Main Mechanisms
  11
- Driveline
  12
- Positions of Electronic Components
  13
- Control System Block Diagram
  14
- Control System Block Diagram
  15
- Operation of Other Electronic Components
  16
2 Disassembly

18
- Main Parts
  18
  - Accessory Table Removal
    20
  - Bottom Cover Removal
    20
  - Needle Plate B Assembly Removal
    21
    
    Needle Plate B ASSY Disassembly
    21
  - Face Plate Assembly Removal
    22
    
    Face Plate a ASSY Disassembly
    22
  - Front Cover Removal
    23
  - Thread Tension Holder Assembly and Thread Take-Up Holder B Removal
    24
    
    Thread Tension Holder ASSY Disassembly
    24
    
    Thread Take-Up Holder B Disassembly
    25
  - LED Lamp Removal
    25
  - Operation PCB Assembly and SSVR PCB Assembly Removal
    26
  - Button Removal
    26
  - Front Panel and LCD Removal
    26
  - SV Keytop Removal
    27
  - Base Plate Rubber Removal
    27
  - Upper Cover Thread Guide Removal
    27
  - Main PCB Assembly Removal
    28
    
    Main PCB ASSY Disassembly
    28
  - Power PCB Assembly Removal
    29
    
    Power PCB ASSY Disassembly
    29
  - Inlet Assembly Removal
    29
  - FC Jack Removal
    30
  - Main Motor Assembly Removal
    30
    
    Main Motor ASSY Disassembly
    30
  - Tension Pulley Assembly Removal
    31
    
    Tension Pulley ASSY Disassembly
    31
  - Feed Unit Assembly Removal
    31
  - Upper Shaft Assembly Removal
    32
  - Needle-Presser Unit Removal
    32
  - Plate Spring Removal
    32
  - Bobbin Base Assembly Removal
    33
    
    Bobbin Base ASSY Disassembly
    33
  - Bobbin Winder Assembly Removal
    33
  - Spool Pin Removal
    34
  - Bobbin Presser Removal
    34
  - Thread Guide Assembly Removal
    34
  - Base Plate Rubber Removal
    35
- Feed Unit
  37
  - Needle Plate a Assembly Removal
    37
    
    Needle Plate a ASSY Disassembly
    37
  - Spring Removal
    37
  - Inner Rotary Hook Bracket Assembly Removal
    37
  - Outer Rotary Hook Removal
    38
  - Feed Dog Removal
    38
  - Feed Bar Removal
    39
  - Needle Plate Supporter Shaft B Removal
    39
  - Feed Arm a Assembly Removal
    40
    
    Feed Arm B ASSY Disassembly
    40
  - Feed Adjuster Assembly Removal
    41
    
    Feed Adjuster Disassembly
    41
  - Vertical Lever Removal
    41
  - FPM Holder Assembly Removal
    42
    
    FPM Disassembly
    42
  - Timing Pulley D Removal
    42
  - Lower Shaft Assembly Removal
    43
  - Lower Shaft Bushing Removal
    43
- Needle-Presser Unit
  45
  - Thread Take-Up Lever and Needle Bar Crank Removal
    45
  - Threader Hook Assembly
    45
  - Thread Take-Up Lever Link Removal
    46
  - Needle Bar Assembly Removal
    46
  - Needle Holder Assembly Removal
    47
    
    Needle Holder ASSY Disassembly
    48
  - Presser Bar Removal
    49
  - Z Zigzag Lever Assembly Removal
    49
    
    Z Zigzag Lever Disassembly
    50
  - Z Zigzag Camp Removal
    50
  - Shaft Bushing Removal
    50
  - Presser Foot Lifter Removal
    50
  - Thread Release Lever Removal
    51
  - Lock Nut Removal
    51
  - Z Pulse Motor Removal
    51
  - Presser Switch Assembly Removal
    51
3 Assembly

52
- Main Parts
  52
- Feed Unit
  74
- Needle-Presser Unit
  86
4 Adjustment

98
5 Special Instructions of Wiring

120
- LED Lamp Right Supply Assy
  121
- Operation PCB Supply Assy and SSVR PCB Supply Assy
  122
- Operation PCB Supply Assy
  123
- Lead Wire Assy, FPM-LE
  124
- Lead Wire Assy, Power-LE
  125
- BH Switch Assy
  126
- LED Lamp Left Supply Assy
  127
- Needle Bar Unit
  128
- Upper Side of Shutter Cover
  129
- FC Jack Supply Assy
  130
6 Failure Investigation for Electronic Parts

132
- Error Message List
  132

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