1. Introduction
The SENTRO 48 Needles Smart Knitting Machine Kit is designed to make knitting projects faster and more enjoyable. This machine allows you to create a variety of knitted items such as scarves, hats, socks, bags, sweaters, pillows, clothes, gloves, and rag dolls with ease. It features dual knitting modes (flat weave and tube weave) and a built-in row counter for efficient crafting.

2. Package Contents
Please check the package carefully to ensure all items are present:
- 1 x SENTRO 48 Needles Knitting Machine
- 1 x Color Packing Box
- 4 x Yarns (2 large, 2 small, random colors)
- 1 x Screwdriver
- 1 x Crochet Hook
- 3 x Hand Needles
- 1 x Instruction Manual
- 1 x Tensioner
- Accessory Kit (4 x Suckers, 4 x Screws)
- Extra Accessories: 1 x Additional Tensioner, 3 x Replacement Crochet Hooks (2 red, 1 white), 1 x Counter

3. Specifications
| Attribute | Value |
|---|---|
| Model Number | STR-843 |
| Item Weight | 2.316kg |
| Material | Plastic |
| Size (Machine) | 35 x 23 cm (13.77 x 9.05 inch) |
| Origin | Mainland China |
| Age Range (Description) | Adult |
| Color | Multicolor (Machine is pink/white) |
| Seasons | All Seasons |
| Packing | Gift Box |
| Is Electric | No |

4. Setup Instructions
Follow these steps to assemble your knitting machine:
- Unpack all components from the box.
- Attach the four legs to the base of the knitting machine. Ensure they are securely fastened using the provided screws and screwdriver.
- Place the machine on a stable, flat surface.
- Attach the suction cups to the bottom of the machine's feet for added stability.
- Insert the tensioning device into its designated slot.
- Ensure the row counter is properly seated and functional.

5. Operating Modes
The SENTRO knitting machine offers two primary knitting modes, easily switchable with a conversion key:
- P Gear (Plain Knit): This mode is for flat weaving and can be used for projects requiring needle reduction. Ideal for creating scarves, bags, sweaters, pillows, and clothes.
- T Gear (Tube Weave): This mode is for round weaving with a fixed stitch number. Perfect for knitting hats, gloves, and rag dolls.

6. Operation Guide
6.1. Starting the Needle and Threading
- Turn the handle clockwise to the starting needle position.
- Begin hanging the thread onto the needles. After hanging the thread from the right side of the starting needle, the first stitch should be inside the crochet hook, and the second stitch on the back of the crochet hook.
- Rotate the handle slowly in this order to hang the thread. The first loop requires careful, slow operation.
- After the first loop of threading, the thread must pass through the thread opening and be placed in the groove, ensuring it does not float on the surface.
6.2. Adjusting Yarn Tightness
The tension of the yarn is crucial for consistent knitting. Use the tensioning device to adjust the yarn tightness:
- Loose: For very delicate or stretchy knits.
- Moderate: Standard tension for most projects.
- Tight: For denser fabrics.
- Tightest: For very firm knits.

6.3. Using the Row Counter
The integrated row counter helps you keep track of your progress. It automatically increments with each full rotation of the handle. Reset it as needed for new projects.
6.4. Video Instructions
For a visual demonstration of the knitting process and detailed operation, please watch the official product video:
You may also find additional video tutorials by scanning the QR codes provided in the printed instruction manual.
7. Maintenance
- Keep the machine clean and free of dust and yarn fibers. Use a soft brush or cloth to gently clean the needles and gears.
- Store the machine in its original packaging or a clean, dry place when not in use to prevent damage.
- Avoid exposing the machine to extreme temperatures or direct sunlight.
8. Troubleshooting
8.1. Dropping Stitches
- Wire Rack Installation: Ensure the wire rack is installed correctly.
- Yarn Tightness: Different yarn sizes require different tension control. For thick threads, it is recommended to only pass them through the outermost large thread hole.
- Yarn Ball Condition: The thread ball should be loosened before starting to knit.
8.2. Needle Not Coming Off Automatically
- Plain Knitting Edge: The edge of plain knitting can easily get stuck or drop needles at the beginning. Manual assistance may be needed to pull off the stitches.
- Multiple Threads on One Needle: If two threads are on the same needle, it may not automatically come off. Turn slowly and manually remove the stitch.
- Floating Yarn: If yarn floats on the line card, manually press it down. If this happens frequently, the yarn might be too loose; adjust the yarn on the spool and check for floating yarn at the inlet.
8.3. Handle Won't Turn
- Without Yarn: Try turning the handle without yarn. If it's still stuck, the gear might be worn out and needs replacement.
- Stuck at a Spot: If the handle is normal but gets stuck at a specific point, the knitting mode (loop vs. plain weave) might be incorrect. Try adjusting to T gear.
8.4. General Tips to Avoid Issues
- Yarn Selection: The 48-needle knitting machine is suitable for yarns between 1.5mm and 5mm. Yarns that are too thick may jam the machine, while yarns that are too fine may lead to dropped stitches or the crochet hook not catching the yarn.
- First Turns: Be very careful not to drop any stitches in the first three to four turns of weaving, as these initial laps are crucial for the success of your project.
- Speed: Do not rotate the handle too fast, as this can easily cause dropped stitches.

9. User Tips
- For optimal performance and to prevent the machine from getting stuck, use acrylic yarn with a weight of number 4 or less.
- Always ensure the yarn is properly threaded and tensioned before starting a new project.
10. Warranty & Support
SENTRO Official provides genuine quality assurance, including free replacement of accessories for 2 years (excluding human damage). If you encounter any issues or have questions regarding your knitting machine, please contact customer service for assistance. The package includes professional video files for replacing accessories.