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General| Brand | Brother |
|---|---|
| Model | DS-120 |
| Category | Sewing Machine |
| Language | English |
Details on the primary mechanical components of the sewing machine.
Explains the power transmission and movement systems within the machine.
Identifies the locations of various electronic parts within the sewing machine.
Visual representation of how the machine's electronic systems are interconnected.
Describes the function and operation of individual electronic parts.
Covers the fundamental components and their initial disassembly/assembly steps.
Details the disassembly and assembly procedures for electrical components and motors.
Explains the process for disassembling and assembling the needle and presser foot mechanisms.
Outlines the steps for disassembling and assembling the feed mechanism.
Provides instructions for disassembling and assembling the bobbin winder.
Demonstrates the application of disassembly/assembly for the main structural components.
Covers the application of disassembly and assembly for electrical components and motors.
Details the application of disassembly and assembly for the feed and rotary mechanisms.
Procedures for entering and controlling the machine's test modes for adjustments.
Instructions for adjusting the tension of the timing belt for optimal performance.
Guidance on adjusting the motor belt tension to ensure proper operation.
Describes how to adjust the tension of the upper thread for correct stitch formation.
Details the adjustment procedure for the needle's position in the left base line.
Instructions for setting the correct vertical height of the needle bar.
Adjustment of the feed dog's forward and backward movement for stitch length.
Adjusting the bobbin winder for even thread winding.
Adjusting the feed dog's position for accurate stitch placement.
Lists error messages and their probable causes for electronic part failures.
Troubleshooting steps for specific error messages displayed on the machine.
Step-by-step guide to diagnose and fix issues where the machine does not power on.
Troubleshooting guide for when the main motor fails to operate.
Troubleshooting steps when sewing patterns are not produced correctly.
Steps to fix problems with the buttonhole sewing function.
Steps to diagnose why the machine does not respond to the foot controller.
Diagnosing and fixing issues with the LED work light not illuminating.
Specific instructions for routing and connecting wires for the needle and presser modules.
Guidance on correctly wiring the power supply unit to other machine components.
Instructions for wiring the components located within the front cover of the machine.
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