This document outlines the features, specifications, usage, and maintenance of the Butterfly M21 Multifunction Home Sewing Machine.
Function Description
The Butterfly M21 is a versatile, multipurpose sewing machine designed for home use. It is capable of performing various sewing functions, including straight stitch, zigzag stitch, buttonhole sewing, and blind hem sewing. The machine allows for speed adjustment (slow and fast) to accommodate different fabric types and sewing needs. It also features a reverse sewing function for reinforcing stitches. The machine is equipped with a presser foot system that can be adjusted to different heights, making it suitable for various fabric thicknesses. A needle guard/mobile phone holder is included for safety and convenience. The machine's design emphasizes ease of use, with clear instructions for threading, bobbin installation, and stitch selection.
Important Technical Specifications
- Input Power: AC100-240V, 50/60Hz, 0.3mA
- Output Power: DC 6V 1.2A
- Power: 9W
- Needle Type: Home Needle (HA X1), specifically numbers 11, 14, and 16, corresponding to thread types 60/80/90, 50/60/80, and 50/60.
- Overall Dimensions: 310mm X 270mm X 120mm
- Weight: 2.1KG
- Speed Control: Adjustable between "SLOW" and "FAST" settings.
- Stitch Patterns: Includes straight stitch (large, off-center, oversized, small), zigzag stitch, buttonhole, dotted zigzag, fold side, ordinary sewing, package edge, splicing, and blind stitch.
- Power Supply: Operates via an AC adapter, which plugs into a power jack on the machine.
Usage Features
The Butterfly M21 offers several features to enhance the user experience:
- Easy Setup: The manual provides clear, step-by-step instructions for initial setup, including connecting the AC adapter and turning on the power.
- Stitch Selection: A pattern selection dial allows users to choose from a variety of stitch patterns, with the needle automatically adjusting to the highest point for pattern changes.
- Speed Adjustment: A speed adjustment switch enables users to select between "SLOW" for delicate or thick materials and "FAST" for general sewing, providing control over the sewing process.
- Presser Foot Functionality: The presser foot can be lifted to two different heights ("height 1" and "height 2") to accommodate various fabric thicknesses. Instructions are provided for removing and installing different presser feet, such as the buttonhole presser foot.
- Bobbin System: The machine features both upper and lower bobbin systems. Detailed instructions cover removing and installing the bobbin, winding the bobbin, and threading the lower bobbin.
- Threading: Comprehensive guidance is given for threading the machine, including the upper thread tension dial, thread guide, thread hook, and thread take-up lever.
- Needle Guard/Mobile Phone Holder: This dual-purpose accessory helps prevent accidental needle injuries and provides a convenient place to hold a mobile phone during sewing.
- Reverse Sewing: The machine includes a reverse sewing function, activated by a reverse lever, to reinforce stitches at the beginning and end of seams.
- Buttonhole Sewing: Specific instructions are provided for sewing buttonholes, including how to determine the length and type of buttonhole and how to use the buttonhole presser foot.
- Blind Hem Sewing: The manual details the steps for performing blind hem stitches, suitable for curtains, pants, and skirts.
- Sewing Cuffs and Trousers: The machine's free arm design allows for easy sewing of cuffs and pant legs.
- Change Needle: Instructions for changing the needle are provided, emphasizing safety precautions and proper installation.
Maintenance Features
To ensure the longevity and optimal performance of the Butterfly M21, the manual outlines several maintenance procedures:
- Daily Maintenance: Regular cleaning is recommended, including removing thread and dust from the bobbin bed and using a brush or vacuum cleaner to clean the bobbin holder and needle plate.
- Troubleshooting Guide: A comprehensive troubleshooting section helps users identify and resolve common issues such as the machine not working, thread breakage, skipped stitches, needle breakage, fabric wrinkling, and tangled threads. This section provides potential causes and corresponding solutions.
- Cleaning: Users are advised to regularly clean the machine to prevent lint and dust buildup, which can affect performance.
- Lubrication: While not explicitly detailed as a user task, the manual implies that proper maintenance, including addressing issues like "machine is dry," might involve lubrication, though this may be a service center task.
- Professional Service: For complex issues or repairs, users are advised to contact an authorized Butterfly brand home sewing machine dealer or technical service center.
- Storage: When not in use, the machine should be properly stored, and accessories should be kept in their designated places.
The manual emphasizes safety precautions throughout, including warnings about electric shock, needle injuries, and proper handling of the machine and its components. Users are encouraged to read the manual thoroughly before operating the machine to ensure safe and effective use.
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