1. Sarrera
Thank you for choosing the HIROBOT FHSM-520A Electric Sewing Machine. This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your new sewing machine. Designed for both beginners and enthusiasts, this portable machine offers 16 built-in stitch patterns, adjustable speed, and a reverse sewing function, making it suitable for various home DIY projects and repairs. Please read this manual thoroughly before initial use to ensure optimal performance and longevity of your machine.
2. Segurtasun-argibideak
To prevent accidents and ensure safe operation, please adhere to the following safety guidelines:
- Always unplug the machine from the power outlet when not in use, before cleaning, or when performing any maintenance.
- Mantendu makina uretatik edo d-tik urrun.amp environments. Do not operate with wet hands.
- Ensure the power cord is not damaged. Do not operate the machine if the cord or plug is damaged.
- Keep fingers away from the needle, handwheel, and other moving parts during operation.
- Supervise children closely if they are near the machine. This appliance is not intended for use by persons with reduced physical, sensory, or mental capabilities unless supervised.
- Use only the power adapter supplied with the machine.
- Jarri makina gainazal egonkor eta lau batean funtzionatzen ari den bitartean.
3. Paketearen edukia
Egiaztatu behean zerrendatutako elementu guztiak zure paketean sartuta daudela:
- HIROBOT FHSM-520A Electric Sewing Machine
- Oin pedala
- Elikatze-moldagailua
- Bobinak
- Hariak
- Orratzak
- Various Presser Feet
- Erabiltzailearen eskuliburua

This image displays the HIROBOT FHSM-520A Electric Sewing Machine along with its complete set of accessories, including the foot pedal, power adapter, bobbins, threads, needles, and various presser feet. The machine is white with mint green accents.
4. Produktua amaitu daview
Familiarize yourself with the main components of your sewing machine:
- Puntada hautatzeko botoia: Used to choose from 16 built-in stitch patterns.
- Hari-tentsioaren markagailua: Goiko hariaren tentsioa doitzen du.
- Reverse Stitch Button: Engages reverse sewing for reinforcement.
- Abiadura etengailua: Toggles between low and high sewing speeds.
- Esku-gurpila: Eskuz igo eta jaisten du orratza.
- Prentsa-oinaren altxagailua: Prentsa-oina igo eta jaisten du.
- Orratz Clamp torlojua: Orratza bere lekuan finkatzen du.
- Bobbin Winder Spindle: Bobinetan haria harilkatzeko erabiltzen da.
- Foot Pedal Port: Connects the foot pedal for speed control.
- Potentzia ataka: Korronte-egokigailua konektatzen du.
5. Konfigurazioa
5.1 Energia-konexioa
- Ensure the machine's power switch is in the 'OFF' position.
- Insert the power adapter plug into the power port on the machine.
- Entxufatu egokitzailea entxufe elektriko egoki batera.
5.2 Oin-pedalaren konexioa
For foot-controlled operation, insert the foot pedal plug into the designated foot pedal port on the machine.
5.3 Bobina-harilkatzea
- Jarri hari-bobina bat biribilgailuaren gainean.
- Guide the thread through the bobbin winder tension disc.
- Wind the thread a few times manually around an empty bobbin.
- Place the bobbin onto the bobbin winder spindle and push it to the right.
- Turn on the machine and gently press the foot pedal or use the hand switch to start winding. Stop when the bobbin is full.
- Moztu haria eta kendu bobina.
5.4 Makina hariztatzea
Correct threading is crucial for proper stitch formation. Please follow the threading instructions provided in the detailed diagram or video (if available) that came with your machine. Incorrect threading can lead to skipped stitches, thread breakage, or machine jams.
6. Funtzionamendu-argibideak
6.1 Puntada hautatzea
Your HIROBOT FHSM-520A machine features 16 built-in stitch patterns. Rotate the stitch selector dial to choose your desired stitch. The available stitches include straight, zigzag, blind hem, and various decorative patterns.
Note: Stitches 9, 10, 11, and 12 are specifically designed for buttonholes and cannot be used for regular sewing. For general and decorative sewing, select other stitch patterns.

A visual guide illustrating the 16 built-in stitch patterns of the HIROBOT FHSM-520A. These include straight stitches (1-4), decorative stitches (5-8), buttonhole stitches (9-12), and overlock stitches (13-16). Each stitch type is demonstrated on a fabric swatch.
6.2 Hari-tentsioa doitzea
The upper thread tension needs to be adjusted according to the fabric type and thread thickness to achieve balanced stitches. Rotate the thread tension dial to increase or decrease tension. A balanced stitch will have both upper and bobbin threads meeting evenly between the fabric layers.
Gomendio orokorrak:
- Chiffon: Tension 2-3
- Pure Cotton: Tension 3-4
- Linen: Tension 4-5
- Denim: Tension 4-5
These are reference suggestions; always test on a scrap piece of your fabric.

This image illustrates the adjustable upper thread tension dial, crucial for achieving smooth stitches on various fabric types. Recommended tension settings are provided for chiffon (2-3), pure cotton (3-4), linen (4-5), and denim (4-5), emphasizing that adjustments may be needed based on fabric density.
6.3 Reverse Sewing Function
To reinforce stitches at the beginning and end of a seam, use the reverse sewing function. Press and hold the reverse button to sew backward. Release the button to resume forward sewing. This function is typically available for straight stitches (1-4).

This image highlights the reverse sewing function, activated by pressing a button. It shows how the machine can sew backward for reinforcement, specifically for stitches 1-4. The design also includes a free arm for sewing sleeves and cuffs.
6.4 Abiadura Kontrola
The machine offers two ways to control sewing speed:
- Abiadura etengailua: Use the 'L' (Low) and 'H' (High) switch on the machine for a constant speed.
- Oin pedala: For variable speed control, connect the foot pedal. Gentle pressure results in slower stitching, while firmer pressure increases the speed.
6.5 Fabric Compatibility
The HIROBOT FHSM-520A is designed to sew a variety of fabrics, from lightweight cotton to heavier denim. It can handle 4-6 layers of fabric with a total thickness of up to 2.5mm.
Supported Fabrics: Pure Cotton, Denim, Linen, Oxford, Mixed Yarn, Chemical Fiber, Modal, Corduroy.
Important: Avoid sewing excessively thin fabrics directly. If necessary, place a layer of A4 paper under the thin fabric to increase its thickness and prevent it from being pulled into the needle plate.

This image demonstrates the machine's capability to sew through 4-6 layers of fabric, up to a total thickness of 2.5mm. It also highlights the support for both 1-needle, 1-thread and 2-needle, 2-thread functions.

A collage of various fabric types that the HIROBOT FHSM-520A can sew, including Pure Cotton, Denim, Linen, Oxford, Mixed Yarn, Chemical Fiber, Modal, and Corduroy. A note advises against sewing overly thin fabrics without adding a layer of A4 paper for support.
7. Mantentzea
Regular maintenance ensures the smooth operation and extends the lifespan of your sewing machine.
- Garbiketa: Regularly clean lint and dust from the bobbin area and feed dogs using a small brush. Always unplug the machine before cleaning.
- Orratz ordezkatzea: Replace needles frequently, especially when they become dull, bent, or if you notice skipped stitches. Use the correct needle type and size for your fabric.
- Biltegiratzea: When not in use, store the machine in a dry, dust-free environment.

Irudi honek barneko ikuspegia eskaintzen du view of the sewing machine, showcasing its 'Solid & Scientific Structure'. Key components highlighted include the high-quality ABS housing, BIS Certified Adapter, 280S Motor, and the metal & ABS frame, indicating durable construction.
8. Arazoak
Jostun-makinarekin arazoak badituzu, jo ezazu honako arazo eta irtenbide ohikoenei:
- Haria haustea: Check if the machine is threaded correctly (both upper and bobbin threads). Ensure the thread tension is not too high. Use good quality thread. Replace a bent or dull needle.
- Saltatuta dauden puntuak: This is often caused by an incorrect or dull needle. Ensure the needle is inserted correctly and replace it if necessary. Check upper threading and tension.
- Makina blokeatzeak: Incorrect threading, especially of the bobbin, is a common cause. Remove all threads, clean the bobbin area, and re-thread carefully following the instructions. Ensure the fabric is not too thick for the machine.
- Puntu irregularrak: Adjust the upper thread tension. Ensure the bobbin is wound evenly.
- Makina ez da martxan jartzen: Check if the power adapter is securely plugged in and the power switch is 'ON'. Ensure the foot pedal is connected correctly if using it.
For persistent issues, please refer to the contact information in the 'Warranty and Support' section.
9. Zehaztapenak
| Ezaugarri | Zehaztapena |
|---|---|
| Marka | HIROBOT |
| Modelo zenbakia | FHSM-520A |
| Jostura integratuak | 16 |
| Reverse Stitch | Yes (for stitches 1-4) |
| Abiadura Kontrola | Adjustable (Low/High switch, Foot Pedal) |
| Maximum Fabric Thickness | Up to 2.5mm (4-6 layers) |
| Kolorea | Berdea |
| Produktuaren neurriak | 12D x 28W x 24H Centimeters (4.72D x 11.02W x 9.45H Inches) |
| Elementuaren pisua | 2 kg 200 g (4.85 lbs) |
| Fabrikatzailea | Guangzhou Hengguan Mechanical & Electrical Co., Ltd |
| Dakarten osagaiak | Josteko Makina |

An image displaying the physical dimensions of the HIROBOT FHSM-520A sewing machine. The measurements are 27.4 cm (10.79 inches) in width, 23.75 cm (9.35 inches) in height, and 11.55 cm (4.55 inches) in depth.
10. Bermea eta Laguntza
For warranty information, technical support, or service inquiries, please contact the manufacturer or importer directly. Keep your purchase receipt as proof of purchase.
- Fabrikatzailea: Guangzhou Hengguan Mechanical & Electrical Co., Ltd
- Inportatzailea: CHD TECH Pvt Ltd.
- Telefonoa: +91 8793566784
- Posta elektronikoa: amzfkt@gmail.com