Brother AS40 Manuals

Manuals and User Guides for Brother AS40. We have 1 Brother AS40 manual available for free PDF download: Service Manual

Brother AS40 Service Manual

Brother AS40 Service Manual (196 pages)

Computerized

Brand: Brother | Category: Sewing Machine | Size: 8.51 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
  - Operation of Other Electronic Components
    15
2 Basics of Disassembly/Assembly

16
3 Application of Disassembly/Assembly

48
4 Adjustment

140
- Starting Test Mode/Starting and Stopping Operation
  141
- Timing Belt Tension
  143
- Motor Belt Tension
  144
- Upper Thread Tension
  145
- Left Base Line Needle Drop
  146
- Rotary Hook Unit Position
  147
- Needle Clearance Left/Right
  148
- Needle Bar Rising
  149
- Needle Bar Height
  150
- Clearance between Needle and Rotary Hook Point
  151
- Needle Threader
  152
- Presser Bar Height and Parallelism
  153
- Feed Forward/Backward
  154
- Bobbin Winder
  155
- BH Lever Switch Position
  156
- Needle and Presser Foot Front/Back Position
  157
- Front/Back and Left/Right Position of Feed Dog
  158
- Feed Dog Height
  159
- Inner Rotary Hook Bracket Position
  160
- Inner Rotary Hook Assy. (Lower Thread) Tension
  161
5 Failure Investigation for Electronic Parts

162
- Error Message List
  163
- Error Message Is Displayed
  164
- Power Does Not Come on
  168
- Pulse Motor Does Not Return to Initial Position
  169
- Pattern Cannot be Selected
  170
- Main Motor Does Not Rotate
  171
- Main Motor Rotation Is Not Normal
  173
- Pattern Cannot be Sewn Correctly
  174
- Button Hole Cannot be Sewn Correctly
  175
- Operation Button Does Not Work
  176
- Does Not Operate When the Foot Controller Is Used
  177
- Bobbin Thread Cannot be Wound on the Bobbin
  178
- LED Lamp Does Not Light
  179
- LCD Is Not Normal
  180
- Buzzer Does Not Sound
  181
  - Special Instructions of Wiring
    182

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