Introduction
This manual provides essential instructions for the setup, operation, maintenance, and troubleshooting of your SINGER Legacy SE300 Computerized Sewing and Embroidery Machine. Please read this manual thoroughly before operating the machine to ensure proper use and longevity.
1. Getting Started: Setup
1.1 Unboxing and Placement
Carefully remove the machine and all accessories from the packaging. Place the machine on a stable, flat surface with adequate space for operation.
1.2 Connecting Power and Foot Pedal
- Connect the power cord to the machine's power input and then to a suitable electrical outlet.
- Connect the foot pedal to its designated port on the machine.
- Locate the On/Off switch, typically on the side or back of the machine, and turn it on.

Image 1: The SINGER Legacy SE300 machine with its embroidery unit attached, ready for operation.
1.3 Threading the Machine
Follow the numbered threading guides on the machine for correct upper thread placement. The machine features a built-in needle threader to simplify this step.
1.4 Winding the Bobbin
The SINGER Legacy SE300 includes an independent bobbin winding motor, allowing you to wind a bobbin without unthreading the needle. Follow the bobbin winding path indicated on the machine.
1.5 Attaching the Embroidery Unit and Hoops
To switch to embroidery mode, attach the embroidery unit to the machine. Secure your fabric within the appropriate embroidery hoop (large 10¼" x 6" or small 4" x 4") and slide it onto the machine's embroidery carriage.
2. Operating the Machine
2.1 LCD Touch Screen Controls
The intuitive LCD touch screen allows for easy selection and adjustment of stitches and embroidery designs. Use the touch-button controls for stitch selection, length, and width adjustments.

Image 2: The LCD touch screen displaying stitch selection options and adjustment controls.
2.2 Sewing Mode
The machine offers 250 built-in sewing stitches, including basic, decorative, quilting, and heirloom stitches. Select your desired stitch from the LCD screen. The machine automatically optimizes stitch settings for your selection.
- Buttonholes: Choose from 13 one-step buttonhole styles for consistent results.
- Stitch Customization: Utilize Mirror-Imaging and Elongation functions for creative stitch modifications.
- Memory: Save up to 4 unique stitch sequences for future use.
2.3 Embroidery Mode
Access 200 embroidery designs and 6 font options. Designs can be transferred via the included USB embroidery stick. The machine guides you through the embroidery process.

Image 3: Transferring embroidery designs to the machine using a USB stick.
2.4 General Controls
- Speed Control: Adjust sewing speed using the dedicated controls.
- Needle Up/Down: Program the needle to stop in the up or down position for precise pivoting and quilting.
- Reverse Sewing: Use the reverse button for reinforcing stitches.
Video 1: An official demonstration of the SINGER Legacy SE300 stitching out an embroidery design, showcasing the machine's operation.
3. Included Accessories
Your SINGER Legacy SE300 comes with a comprehensive accessory kit to support various sewing and embroidery projects:
- Large Embroidery Hoop (10¼" x 6")
- Small Embroidery Hoop (4" x 4")
- General Purpose Foot
- Satin Stitch Foot
- Overcasting Foot
- Blind Hem Foot
- Zipper Foot
- Buttonhole Foot with Underplate
- Straight Stitch Foot
- Button Sewing Foot
- Open Toe Foot
- Embroidery Foot
- Parallel Sewing Foot
- Quilting Bar
- Thread Spool Net
- Spool Pin Felt
- Screwdriver
- Needle Plate Screwdriver
- Seam Ripper/Lint Brush
- Thread Spool Caps
- Auxiliary Spool Pin
- Bobbins (Class 15 transparent)
- Pack of Needles
- USB Embroidery Stick
- Complementary Software

Image 4: A visual representation of the extensive accessory kit included with the machine.
4. Maintenance
Regular maintenance ensures optimal performance and extends the life of your machine.
4.1 General Cleaning
- Always unplug the machine before cleaning.
- Use a soft brush to remove lint and dust from the bobbin area and feed dogs.
- Wipe the exterior with a soft, dry cloth. Avoid harsh chemicals.
4.2 Needle Replacement
Replace needles regularly, especially when working with new projects or if you notice skipped stitches or fabric damage. Use SINGER-approved needles appropriate for your fabric type.
4.3 Bobbin Area Care
Periodically remove the needle plate and bobbin case to clean out any accumulated lint or thread fragments. This prevents thread jamming and ensures smooth operation.
5. Troubleshooting
This section addresses common issues you might encounter. For more detailed troubleshooting, refer to the online owner's class or support resources.
- Thread Jamming: Often caused by incorrect threading, improper bobbin insertion, or accumulated lint. Re-thread the machine, check bobbin placement, and clean the bobbin area.
- Needle Breakage: Can occur if the needle is bent, dull, or the wrong type for the fabric. Ensure the needle is inserted correctly and replace it if necessary. Avoid pulling fabric while sewing.
- Motor Overload Message: This may indicate the machine is struggling with thick fabric or multiple layers. Reduce the number of layers or use a heavier-duty needle. Ensure the machine is not forced.
- Skipped Stitches: Typically due to a bent or dull needle, incorrect needle insertion, or improper threading. Replace the needle and re-thread the machine carefully.
6. Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 20.25 x 8 x 12.25 inches (51.44 x 20.32 x 31.12 cm) |
| Item Weight | 20.5 pounds (9.3 kg) |
| Manufacturer | SINGER |
| Model Number | SE300 |
| Built-in Stitches | 250 |
| Embroidery Designs | 200 |
| Embroidery Fonts | 6 |
| Buttonhole Styles | 13 (one-step) |
| Embroidery Hoops Included | Large (10¼" x 6"), Small (4" x 4") |
| Needle Threader | Built-in Automatic |
| Bobbin System | Top-drop transparent, Independent Winding Motor |
| Display | LCD Touch Screen |
7. Support and Resources
For additional assistance, learning resources, and product information, please refer to the following:
- Online Owner's Class: Access guided learning sessions to maximize your machine's potential.
- Digital Manuals: SINGER product manuals are available in paperless format on the official SINGER support website.
- SINGER Support Website: Visit singer.com/support for comprehensive support, FAQs, and contact information.





