1. Introduction
Thank you for choosing the DIY FHSM-505 Mini Household Electric Sewing Machine. This compact and versatile sewing machine is designed for various sewing tasks, offering 12 built-in stitch types, dual power options, and user-friendly features. Please read this manual thoroughly before operating the machine to ensure safe and efficient use.
2. Package Contents
Carefully unpack your sewing machine and check that all items listed below are included. If any items are missing or damaged, please contact customer support.
Figure 2.1: FHSM-505 Sewing Machine and Accessories
- Sewing machine host × 1
- EU Plug Power Supply × 1
- Pedal × 1
- Bottom line (bobbins) × 3
- Surface line (spools) × 3
- Machine needle × 2
- Presser foot × 1
- Threader × 1
- Manual × 1
3. Product Overview
Familiarize yourself with the different parts of your sewing machine:
Figure 3.1: Functional Analysis of the FHSM-505 Sewing Machine
- Stitch Selector: Dial to choose from 12 stitch patterns.
- Upper Thread Tension Adjustment Knob: Controls the tension of the upper thread.
- Take-up Rod: Guides the upper thread during stitching.
- Thread Cutter: Conveniently cuts threads after sewing.
- Illumination: Built-in light for better visibility.
- Presser Foot Switch: Lever to raise and lower the presser foot.
- Lock Cylinder Cover: Protects the bobbin area.
- Scale: Measurement markings on the sewing bed.
- Cylinder Groove: Allows for sewing tubular garments like sleeves and trouser legs.
- Handwheel: Manually controls needle movement.
- Backstitch Button: Engages reverse stitching.
- Body Switch: Main power switch.
- Storage Drawer: Pull-out compartment for accessories.
4. Specifications
Figure 4.1: Product Dimensions
| Feature | Detail |
|---|---|
| Model | FHSM-505 (also referred to as SM-505L) |
| Number of Lines | Double line |
| Drive Form | Electric + Manual |
| Stitch Type | Straight line + Curve, 12 kinds of stitches (chain stitch formation) |
| Power Source | AC Power (EU Plug Power Supply) or 4xAA batteries |
| Product Size (L×W×H) | 27.5 cm × 12.1 cm × 26 cm |
| Product Weight | 2000g (2 kg) |
| Fabric Compatibility | Can sew 4-6 layers of ordinary denim fabric; suitable for plain denim, cotton, stretch fabrics, thin fabric, chiffon. |
5. Setup
5.1 Powering the Machine
Your FHSM-505 sewing machine can be powered in two ways:
- AC Power: Connect the provided EU Plug Power Supply to the machine's DC 12V input port and then to a suitable wall outlet.
- Battery Power: Insert 4xAA batteries into the battery compartment. Ensure correct polarity (+/-) to prevent damage.
Caution: Do not use both AC power and batteries simultaneously to avoid potential damage to the machine.
5.2 Bobbin Winding (Bottom Thread)
The machine features an automatic winding device for the bottom thread. Follow these 4 steps:
Figure 5.1: Automatic Bobbin Winding Steps
- Place an empty bobbin onto the bobbin winder spindle.
- Guide the thread from a spool through the tension disc and around the bobbin.
- Push the bobbin winder spindle to the right.
- Start the machine (usually by pressing the foot pedal or speed button) to wind the thread. Stop when the bobbin is full.
5.3 Threading the Machine
The FHSM-505 uses a double-line threading system. While specific diagrams are in the included manual, general steps involve:
- Place a spool of thread on the spool pin.
- Guide the thread through the upper thread guides and tension adjustment knob.
- Pass the thread through the take-up lever.
- Thread the needle from front to back.
- Insert the wound bobbin into the bobbin case under the needle plate, ensuring the thread feeds correctly.
- Use the handwheel to lower the needle, catching the bobbin thread, and pull both threads under the presser foot.
5.4 Changing the Presser Foot
The presser foot is replaceable to achieve different sewing functions.
Figure 5.2: Changing the Presser Foot
To change the presser foot, lift the presser foot lever, press the release button (if present) or unscrew the attachment, and then attach the desired presser foot.
6. Operating Instructions
6.1 Stitch Selection
Turn the stitch selector dial to choose from the 12 built-in stitch patterns. These include straight lines, curves, simple overlock, and buttonhole functions.
Figure 6.1: Available Stitch Types
6.2 Speed Control
The machine offers both fast and slow speed settings, making it suitable for both beginners and experienced users. You can also control the speed using the external foot pedal; the heavier you press, the faster the machine will sew.
6.3 Backstitch Function
Press the backstitch button to engage reverse stitching, which is useful for securing the beginning and end of seams.
6.4 Cylinder Seam Function
The machine body is equipped with a sewing barrel slot, specifically designed for sewing tubular garments such as trouser legs and cuffs. Simply slide the garment onto the free arm.
Figure 6.2: Cylinder Seam Function
6.5 Fabric Compatibility
The FHSM-505 is capable of sewing a variety of fabrics, including plain denim (up to 4-6 layers), cotton, stretch fabrics, thin fabrics, and chiffon.
Figure 6.3: Fabric Compatibility
Note: When sewing thin, soft, or elastic fabrics, it is recommended to use a special needle to prevent skipped stitches.
6.6 Illumination
A built-in flashlight provides illumination to the sewing area, making it easier to stitch in low-light conditions.
7. Maintenance
7.1 Cleaning
Regularly clean lint and dust from the bobbin area and under the needle plate. Use a soft brush or cloth. Ensure the machine is unplugged before cleaning.
7.2 Durable Parts
The machine features a metal hook tip design, which is durable and helps prevent skipped stitches, contributing to a longer service life.
Figure 7.1: Secure Needle Bar and Durable Metal Hook Tip
7.3 Storage
Utilize the pull-out storage box located on the machine for convenient storage of small parts and accessories like bobbins, needles, and the threader.
Figure 7.2: Pull-out Storage Box
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Machine does not power on |
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| Skipped stitches |
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| Thread breakage |
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| Machine runs slowly or jams |
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Important Precaution: Ensure the positive and negative poles of the batteries are installed correctly. Incorrect assembly will cause the equipment to be damaged or unable to work normally.
9. User Tips
- Always test stitches on a scrap piece of your fabric before starting your project to ensure tension and stitch type are correct.
- When sewing delicate or stretchy fabrics, consider using a walking foot (if compatible and available separately) to help feed the fabric evenly.
- Keep your sewing area well-lit, even with the built-in light, for optimal visibility and to reduce eye strain.
10. Warranty and Support
For warranty information or technical support, please refer to the documentation provided with your purchase or contact the retailer/manufacturer directly. Keep your proof of purchase for any warranty claims.