Instruction Manual for Brother LS 2125 Sewing Machine

The Brother LS 2125 is a versatile mechanical sewing machine designed for home use, featuring 10 built-in stitches, 4-step buttonhole function, free arm capability, adjustable stitch length and width, built-in thread cutter, drop feed for free-motion sewing, and easy stitch selection dial. Powered by 110V AC, this lightweight machine is ideal for beginners and experienced sewers alike. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Machine Setup 3. First-Time Operation 4. Specifications 5. Controls and Settings 6. Stitch Selection 7. Basic Sewing Techniques 8. Maintenance & Cleaning 9. Accessories 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Stitch selection dial, stitch width dial, stitch length dial, reverse sewing lever, bobbin winder, free arm, built-in light, foot pedal, and accessory storage.

FeatureDescription
Built-in stitches10 utility and decorative stitches including straight, zigzag, and blind hem
4-step buttonholeEasy buttonhole creation with manual settings
Free arm capabilityRemovable accessory compartment for sewing cuffs and sleeves
Stitch length dialAdjustable from 0-4 mm for different fabric types
Stitch width dialAdjustable up to 5 mm for zigzag and decorative stitches
Reverse sewing leverReinforce seams at beginning and end of stitching
Built-in thread cutterConvenient thread cutting on machine bed
Drop feed mechanismLower feed dogs for free-motion quilting and darning
Built-in lightIlluminates sewing area for better visibility
Bobbin systemTop-loading, drop-in bobbin with clear cover

Machine Setup

Unpack and inspect all components. Place machine on stable, flat surface.

  1. Remove machine from packaging and all protective materials.
  2. Place machine on sturdy table or sewing cabinet.
  3. Connect foot pedal to machine and plug into power outlet.
  4. Install needle: Loosen needle clamp screw, insert needle with flat side to back, tighten screw.
  5. Wind bobbin: Place thread on spool pin, guide thread through bobbin winder tension, press bobbin onto winder shaft.
  6. Thread machine: Follow numbered threading guide on machine.

WARNING! Keep fingers away from needle area during operation. Always turn off and unplug machine when not in use.

First-Time Operation

Power on machine; test basic functions before sewing projects.

  1. Power connection: Plug machine into 110V outlet, turn power switch on.
  2. Needle and thread: Install appropriate needle for fabric type, thread machine following guide.
  3. Bobbin installation: Place wound bobbin in bobbin case, pull thread through slot.
  4. Test stitches: Select straight stitch, place scrap fabric under presser foot, practice sewing.
  5. Adjust tension: Test on scrap fabric, adjust upper tension if needed.
  6. Practice reverse stitching: Use reverse lever to reinforce seams.

CAUTION! Always start with needle in highest position. Keep work area well-lit and organized.

Specifications

Controls and Settings

Main controls located on front and side of machine. Stitch selection dial, stitch length dial, stitch width dial, reverse lever.

Stitch Selection: Turn dial to select from 10 built-in stitches. Stitch Length: Adjust for fabric thickness (0-4 mm). Stitch Width: Adjust for zigzag and decorative stitches (0-5 mm). Reverse Sewing: Press and hold lever for backward stitching. Tension Control: Adjust upper thread tension dial (usually set at 4).

Stitch Selection

10 built-in stitches for various sewing applications.

  1. Straight Stitch: Basic sewing, topstitching (stitch length 2.0-2.5)
  2. Zigzag Stitch: Seam finishing, appliqué, stretch fabrics
  3. Blind Hem Stitch: Nearly invisible hemming
  4. Elastic Stitch: Sewing elastic, decorative stitching
  5. Multiple Zigzag: Mending, darning, decorative work
  6. Decorative Stitches: Various patterns for creative projects
  7. Buttonhole Stitch: 4-step process for professional buttonholes

Tip: Always test stitches on scrap fabric before sewing your project.

Basic Sewing Techniques

Fundamental sewing operations for beginners.

  1. Starting to sew: Place fabric under presser foot, lower presser foot lever, press foot pedal gently.
  2. Straight line sewing: Use seam guide lines on needle plate for straight stitching.
  3. Turning corners: Stop with needle in fabric, raise presser foot, pivot fabric, lower presser foot.
  4. Reverse stitching: Press reverse lever at beginning and end of seams.
  5. Zigzag stitching: Adjust width for different applications.
  6. Buttonhole making: Follow 4-step process using buttonhole foot.
  7. Free arm sewing: Remove accessory storage for sewing sleeves and cuffs.

WARNING! Never pull fabric while sewing - let feed dogs move fabric automatically.

Maintenance & Cleaning

Regular maintenance ensures optimal performance and longevity.

  1. Daily cleaning: Brush out lint from bobbin area and feed dogs.
  2. Needle replacement: Change needle after every project or 8 hours of sewing.
  3. Oiling: Apply sewing machine oil to designated points as per manual (usually every few months).
  4. Bobbin case cleaning: Remove bobbin case and clean thoroughly.
  5. Exterior cleaning: Wipe with soft, dry cloth only.

CAUTION! Always unplug machine before cleaning or maintenance. Use only sewing machine oil.

Accessories

Standard accessories included with Brother LS 2125.

Regulatory Information

UL Listed: Complies with UL safety standards for household sewing machines. Copyright © Brother Industries, Ltd. All rights reserved. Brother International Corporation. For technical support and service, visit www.brother-usa.com or contact 1-877-4BROTHER (1-877-426-7843). Made for household use only.

Troubleshooting

SymptomPossible CauseCorrective Action
Machine not runningPower connectionCheck power cord connection; ensure power switch is on
Thread breakingTension/thread qualityCheck threading path; adjust tension; use quality thread
Uneven stitchesThreading/tensionRe-thread machine completely; check bobbin threading
Needle breakingNeedle installation/fabricEnsure needle inserted correctly; use proper needle for fabric
Fabric not feedingFeed dogs loweredCheck feed dog position; raise if dropped for free-motion
Skip stitchesNeedle type/damageChange needle; ensure correct needle type for fabric
Bobbin thread bunchingBobbin threadingRemove and re-thread bobbin; check bobbin case

Service: 1-877-4BROTHER; www.brother-usa.com

Instruction Manual for Brother LS 2125 Sewing Machine © - All Rights Reserved 2025