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General| Brand | Singer |
|---|---|
| Model | 20U109 |
| Category | Sewing Machine |
| Language | English |
Essential safety guidelines to follow before and during machine operation.
Specific precautions to prevent injuries and ensure safe machine usage.
Visual overview of the Zigzag Sewing Machine models 20U and 20E.
Technical specifications table for different Singer sewing machine models.
Details on motor, pulley diameter, and V-belt specifications for machine speed.
Relationship chart between zigzag stitch width and maximum operating speed.
Step-by-step guide for correctly installing the oil reservoir on the machine table.
Detailed instructions on lubricating all critical parts of the sewing machine.
Guidance on choosing the correct needle and thread for different materials.
Proper method for inserting the needle into the needle bar.
Instructions on how to wind thread onto the bobbin.
Procedure for threading and replacing the bobbin case.
Step-by-step guide for threading the sewing machine's upper thread path.
Adjusting the tension of the needle thread for optimal stitching.
Adjusting the tension of the bobbin thread.
Procedures for changing presser feet, needle plates, and feed dogs.
Instructions for installing the knee lifter for hands-free operation.
Required presser feet and needle plates for buttonhole stitching.
How to clean the sewing machine head using a soft cloth.
Routine checks for safety devices, screws, belts, and electrical components.
Common sewing problems and their recommended solutions and adjustments.
Illustrated list of components for the face plate, arm top, and side covers.
Illustrated list of components for the thread take-up, arm shaft, and handwheel.
Illustrated list of components for the needle bar, presser bar, and needle plate.
Illustrated list of components for the zigzag cam and hook advancing crank.
Illustrated list of components for the hook and bobbin case assembly.
Illustrated list of components for the presser bar lifter and thread tension.
Illustrated list of optional accessories and attachments for the sewing machine.
Illustrated list of belt cover components and other extra parts.
