The Brother LX3817A is a versatile, user-friendly mechanical sewing machine designed for beginners and home sewers. It features 17 built-in stitches, a 4-step buttonhole, automatic needle threading, a drop-in bobbin system, adjustable stitch length and width, and a free arm for sewing cuffs and sleeves. Powered by 120V AC, it comes with essential accessories and is ideal for a wide range of sewing projects. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.
Key components: Mechanical sewing head, built-in stitch patterns, free arm, accessory storage, power cord and foot control.
| Feature | Description |
|---|---|
| Built-in Stitches | 17 stitches including utility, decorative, and stretch |
| 4-Step Buttonhole | Easy, precise buttonholes in four simple steps |
| Automatic Needle Threader | Quickly threads the needle with a lever |
| Drop-in Bobbin System | Top-loading, clear-view bobbin for easy monitoring |
| Free Arm | Removable accessory tray for sewing cylindrical items |
| Stitch Length/Width Dial | Adjustable for customizing stitch appearance |
| Built-in Light | Illuminates the sewing area |
| Reverse Sewing Lever | For reinforcing stitches at beginning and end |
| Power/Speed Control | Foot pedal controls sewing speed |
| Accessory Storage | Built-in compartment for feet, bobbins, and needles |
Unpack and inspect all contents. Place on a stable, flat surface.
WARNING! Keep hands away from the needle and moving parts during operation. Always unplug the machine when not in use or when performing maintenance.
Prepare the machine for its first use.
CAUTION! Always start with the needle in the highest position and the presser foot lowered. Do not pull fabric; let the feed dogs move it.
Main controls are located on the front and right side of the machine.
Stitch Selection Dial: Turn to select one of the 17 stitch patterns. The number corresponds to the stitch diagram on the machine.
Stitch Length Dial: Controls the distance between stitches (0-4). Higher numbers for longer stitches.
Stitch Width Dial: Controls the side-to-side width of zigzag and decorative stitches (0-5). Set to 0 for straight stitches.
Reverse Sewing Lever: Press and hold to sew in reverse for reinforcement.
Handwheel: Turn toward you to raise/lower the needle manually. Always turn toward you only.
Presser Foot Lever: Raises and lowers the presser foot.
Bobbin Winder: Located on the top right, used to wind thread onto the bobbin.
Refer to the stitch chart on the machine. Common settings:
Tip: Always test stitch settings on a scrap of your project fabric first.
Winding the Bobbin:
Threading the Upper Thread:
Inserting the Bobbin:
Unplug the machine before any cleaning or maintenance.
CAUTION! Never use compressed air to clean the machine as it can force lint deeper. Do not use household oils or solvents.
FCC Compliance: This device complies with Part 15 of the FCC Rules. Copyright © Brother Industries, Ltd. For support, visit www.brother-usa.com or contact Brother Customer Service at 1-877-888-5523. This product is designed for household use only.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| Machine does not run | Not plugged in / Power switch off | Check power cord connection and outlet. Ensure foot control is plugged in. |
| Thread bunching underneath | Incorrect bobbin threading / Upper tension | Re-thread bobbin and upper thread completely. Ensure bobbin is inserted correctly. |
| Needle breaks | Wrong needle type/installation / Pulling fabric | Install a new needle correctly (flat side back). Do not pull fabric; let feed dogs move it. |
| Skips stitches | Dull/bent needle / Incorrect needle for fabric | Replace needle. Use ballpoint needle for knits, universal for wovens. |
| Uneven stitches | Incorrect thread tension / Dirty machine | Clean lint from bobbin area. Adjust tension dial (usually set to 4). |
| Buttonhole not forming | Incorrect foot / Steps not followed | Use the buttonhole foot. Precisely follow the 4 steps in order. |
| Automatic needle threader not working | Needle not in highest position / Thread not hooked | Raise needle fully. Ensure thread is properly seated in the hook of the threader. |
Reset: Unplug the machine for 60 seconds to reset any electronic issues (though mechanical, this can clear minor faults).
Service: For repairs not covered in this guide, contact Brother Authorized Service Center. 1-877-888-5523; www.brother-usa.com