Brother LS 2125 Sewing Machine Manual

The Brother LS 2125 is a versatile, lightweight, and easy-to-use sewing machine ideal for beginners and home sewing projects. It features 10 built-in stitches, a 4-step buttonhole, adjustable stitch length and width, free arm capability, built-in thread cutter, and a drop feed for free-motion sewing. This manual covers essential safety information, machine setup, basic operations, stitch selection, maintenance, and troubleshooting.

1. Features at a Glance 2. Machine Setup & Installation 3. First-Time Operation 4. Specifications 5. Controls and Functions 6. Stitch Selection Guide 7. Threading & Bobbin Winding 8. Maintenance & Cleaning 9. Safety Information 10. Warranty & Support 11. Troubleshooting

Features at a Glance

Key components: Main body with free arm, stitch selection dial, bobbin winder, presser foot, needle plate, and accessory compartment.

Feature	Description
Built-in Stitches	10 stitches including straight, zigzag, blind hem, and decorative stitches
4-Step Buttonhole	Easy-to-create buttonholes in four simple steps
Free Arm	Removable flatbed accessory for sewing cuffs and sleeves
Stitch Length/Width Control	Adjustable for customizing stitch appearance
Drop Feed	Lowers feed dogs for free-motion sewing and darning
Built-in Thread Cutter	Convenient blade on the side of the machine
Reverse Sewing Lever	Reinforce stitches at beginning and end of seams
Lightweight Design	Portable and easy to store
Accessory Kit	Includes presser feet, bobbins, needles, screwdriver, and spool caps
Power & Speed Control	Foot pedal with adjustable sewing speed

Machine Setup & Installation

Unpack and inspect all contents. Place on a stable, flat surface.

Remove machine from carrying case and place on table.
Attach power cord: Plug into machine and then into a 120V AC outlet.
Install foot pedal: Connect to machine port and place on floor.
Attach accessory compartment: Slide onto free arm if removable.
Insert needle: Loosen needle clamp screw, insert needle with flat side to back, tighten screw.

WARNING! Ensure machine is unplugged during setup. Keep fingers away from needle area.

First-Time Operation

Plug in power, turn on machine (if applicable), and follow these steps.

Wind bobbin: Place thread on spool pin, wind bobbin using bobbin winder.
Insert bobbin: Open bobbin cover, insert bobbin with thread turning clockwise.
Thread upper thread: Follow numbered threading path on machine.
Select stitch: Turn stitch selection dial to desired pattern.
Test sew: Place fabric under presser foot, lower foot, and gently press foot pedal.

CAUTION! Always lower presser foot before sewing. Keep hands clear of moving needle.

Specifications

Model: Brother LS 2125
Stitches: 10 built-in stitches
Buttonhole: 4-step manual buttonhole
Stitch Length: Adjustable up to 4mm
Stitch Width: Adjustable up to 5mm
Free Arm: Yes, removable flatbed
Needle Positions: Left, center, right
Bobbin: Front-loading, Class 15 transparent bobbin
Power Supply: 120V AC, 60Hz
Weight: Approximately 11 lbs (5 kg)
Included Accessories: All-purpose foot, buttonhole foot, zipper foot, bobbins, needles, screwdriver, spool caps, darning plate

Controls and Functions

Main controls located on right side of machine.

Stitch Selection Dial: Turn to select stitch pattern (numbered 1-10). Stitch Length Dial: Adjusts length (0-4). Stitch Width Dial: Adjusts width (0-5). Reverse Sewing Lever: Hold down to sew in reverse. Bobbin Winder: Winds thread onto bobbin. Handwheel: Manually raise/lower needle. Presser Foot Lever: Raises and lowers presser foot. Thread Tension Dial: Adjusts upper thread tension (usually set to 4).

Stitch Selection Guide

Use stitch selection dial to choose pattern.

Straight Stitch (Pattern 1): For seams, topstitching. Use center needle position.
Zigzag Stitch (Pattern 2): For finishing edges, appliqué, stretch fabrics.
Blind Hem Stitch (Pattern 3): For nearly invisible hems.
Decorative Stitches (Patterns 4-10): For embellishment on various fabrics.
Buttonhole (4-step): Use buttonhole foot; follow steps marked on machine.

Tip: Test stitch on scrap fabric first. Adjust tension if needed.

Threading & Bobbin Winding

Correct threading is essential for proper stitch formation.

Bobbin Winding: Place spool on pin, thread through bobbin winder tension, wrap thread around bobbin, push bobbin winder to right, press foot pedal.
Upper Threading: Raise presser foot and needle. Follow numbered path: spool pin, thread guide, tension discs, take-up lever, thread guide, needle (front to back).
Drawing Up Bobbin Thread: Hold upper thread, turn handwheel toward you until needle goes down and up, pull upper thread to bring bobbin thread up through needle plate.

WARNING! Ensure presser foot is raised when threading to allow thread to seat in tension discs.

Maintenance & Cleaning

Unplug machine before any maintenance.

Regular cleaning: Remove needle plate screws, lift plate, use brush to remove lint from bobbin area and feed dogs. Oil sparingly as per manual instructions (if recommended). Replace needle regularly (every 8-10 hours of sewing).

CAUTION! Do not use compressed air; it can force lint deeper. Never oil without checking manual.

Safety Information

Always unplug machine when not in use, during threading, changing needle, or cleaning. Keep fingers away from needle. Do not sew over pins. Use proper needle and thread for fabric. Ensure adequate lighting. Keep machine dry and away from heat sources.

Warranty & Support

Brother limited warranty applies (check documentation for duration). For service, contact authorized Brother service center. For support, visit www.brother-usa.com or call 1-877-467-4289. Keep receipt for warranty claims.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Thread bunching underneath	Incorrect bobbin threading	Re-thread bobbin ensuring correct direction; check upper threading.
Needle breaks	Wrong needle type, bent needle, incorrect insertion	Replace needle; ensure flat side is to back; use correct needle for fabric.
Skips stitches	Dull needle, wrong needle size, thread tension	Change needle; adjust tension; re-thread.
Machine doesn't run	Not plugged in, foot pedal issue	Check power connection; ensure foot pedal is plugged into machine.
Uneven stitches	Incorrect tension, dirty machine	Clean lint; adjust tension dial; re-thread.
Fabric not feeding	Feed dogs lowered, presser foot pressure	Raise feed dogs; ensure presser foot is down.

Reset: Unplug machine for 5 minutes if electronic issues occur.

Service: 1-877-467-4289; www.brother-usa.com