The Brother LS-2125i is a versatile mechanical sewing machine designed for home use, featuring 25 built-in stitches, 4-step buttonhole, free arm capability, automatic needle threader, drop feed for free-motion sewing, built-in LED light, stitch length/width adjustment, and reverse sewing. Powered by 120V AC, this machine is ideal for basic sewing, mending, and creative projects. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.
Key components: Mechanical sewing machine with 25 stitches, free arm, automatic needle threader, LED light, stitch selection dial, reverse lever, bobbin winder.
| Feature | Description |
|---|---|
| Built-in stitches | 25 utility and decorative stitches including straight, zigzag, and stretch stitches |
| 4-step buttonhole | Easy buttonhole creation with precise sizing |
| Free arm | For sewing cuffs, sleeves, and other tubular items |
| Automatic needle threader | Quick and easy needle threading |
| Drop feed | For free-motion sewing and darning |
| Built-in LED light | Bright illumination of sewing area |
| Stitch length adjustment | Adjustable from 0-4mm |
| Stitch width adjustment | Adjustable up to 5mm |
| Reverse sewing lever | For reinforcing stitches at beginning and end |
| Bobbin winding system | Built-in bobbin winder with automatic stop |
Unpack and inspect contents. Place on stable, level surface.
WARNING! Keep fingers away from needle area during operation. Always unplug machine when not in use.
Power on machine; follow basic threading and sewing steps.
CAUTION! Always start with scrap fabric to test settings. Keep work area well-lit.
Main controls: Stitch selection dial, stitch length dial, stitch width dial, reverse lever, handwheel, bobbin winder.
Stitch Selection: Turn dial to select from 25 built-in stitches. Stitch Length: 0-4mm adjustment (0 for darning). Stitch Width: 0-5mm adjustment for zigzag and decorative stitches. Reverse Lever: Hold down for reverse stitching. Handwheel: Manual control of needle position. Presser Foot Pressure: Adjustable for different fabric types.
Select appropriate stitches for different sewing projects.
Tip: Always test stitch on scrap fabric before sewing project.
Fundamental sewing operations for common tasks.
WARNING! Always lower presser foot before sewing. Never pull fabric while sewing.
Regular maintenance ensures optimal performance and longevity.
CAUTION! Use only Brother recommended needles and bobbins. Do not use compressed air for cleaning.
Standard accessories included with LS-2125i:
UL Listed: Complies with UL 1278 standard for sewing machines. FCC Part 15: Class B digital device; complies with interference limits for residential use. Copyright © 2025 Brother International Corporation. For support, visit www.brother-usa.com or contact 1-877-467-4289.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| Needle breaks | Wrong needle/bent needle | Replace with correct needle type; ensure straight insertion |
| Thread bunching | Incorrect threading/tension | Re-thread completely; check bobbin threading; adjust tension |
| Skipped stitches | Dull needle/wrong needle | Replace needle; use correct needle for fabric type |
| Machine won't run | Power connection/foot control | Check power cord; ensure foot control is plugged in properly |
| Uneven stitches | Poor quality thread/tension | Use quality thread; clean machine; adjust upper tension |
| Noisy operation | Lint buildup/needs oiling | Clean bobbin area; oil specified points only |
| Fabric not feeding | Feed dogs lowered/dirty | Raise feed dogs; clean feed dog area |
Service: 1-877-467-4289; www.brother-usa.com