JL125 Sewing Machine Manual

The JL125 is a versatile household sewing machine featuring multiple stitch patterns, adjustable stitch length and width, built-in buttonholer, free arm capability, automatic needle threader, drop feed for darning and quilting, built-in LED light, and easy bobbin winding system. Suitable for beginners and experienced sewers alike, this manual covers safety guidelines, basic operations, maintenance, and troubleshooting.

1. Features at a Glance 2. Machine Setup 3. Basic Operations 4. Specifications 5. Controls and Functions 6. Stitch Selection 7. Maintenance & Cleaning 8. Troubleshooting 9. Warranty Information

Features at a Glance

Key components: Main body with free arm, Foot pedal, Power adapter, Accessory box with presser feet, Bobbins, Needles, Seam ripper, and Screwdriver.

Feature	Description
Stitch Patterns	12 built-in stitches including straight, zigzag, and decorative
Buttonholer	One-step automatic buttonhole function
Free Arm	Removable extension table for sewing cuffs and sleeves
Needle Threader	Built-in automatic needle threading system
Stitch Length/Width	Adjustable controls for customization
Drop Feed	Lower feed dogs for darning and free-motion quilting
LED Light	Built-in illumination for work area
Reverse Stitch	Button for reinforcing stitches
Bobbin Winding	Built-in bobbin winder with automatic stop
Power Switch	Main power control with indicator light

Machine Setup

Unpack and inspect all components. Place on stable, level surface.

Connect power: Plug power adapter into machine and wall outlet (110-120V).
Install needle: Loosen needle clamp screw, insert needle with flat side facing back, tighten screw.
Wind bobbin: Place bobbin on winder, thread through tension disc, press pedal to wind.
Insert bobbin: Open bobbin cover, insert bobbin with thread running counterclockwise.
Thread machine: Follow numbered threading guide on machine.

WARNING! Always unplug machine when changing needles or performing maintenance. Keep fingers away from moving parts.

Basic Operations

Power on machine; test functions before sewing.

Select stitch: Turn stitch selection dial to desired pattern.
Adjust settings: Set stitch length (0-4mm) and width (0-5mm) as needed.
Position fabric: Lower presser foot lever, guide fabric gently.
Start sewing: Press foot pedal gradually to control speed.
Reverse stitching: Press reverse button at beginning and end of seams.
Thread cutter: Use built-in thread cutter on face plate.

CAUTION! Never pull fabric while sewing; let feed dogs move fabric naturally.

Specifications

Machine Type: Electronic Household Sewing Machine
Stitch Patterns: 12 built-in stitches
Stitch Length: 0-4mm adjustable
Stitch Width: 0-5mm adjustable
Buttonholes: One-step automatic
Needle Positions: Left, center, right
Max Sewing Speed: 800 stitches per minute
Power Requirements: 110V, 60Hz
Weight: 12.5 lbs (5.7 kg)
Warranty: 25-year limited warranty

Controls and Functions

Front Panel: Power switch, Stitch selection dial, Stitch length control, Stitch width control, Reverse stitch button.

Additional Features: Built-in thread cutter, Presser foot pressure dial, Bobbin winding system, Drop feed lever, Free arm capability.

Stitch Selection: Straight stitch (1-4), Zigzag (5), Elastic stitch (6), Blind hem (7), Overcast (8), Shell tuck (9), Decorative stitches (10-12). Tension Control: Upper thread tension dial (0-9), Automatic bobbin tension.

Stitch Selection

Choose appropriate stitch for fabric type and project.

Straight Stitch (1-4): Basic sewing, topstitching, basting
Zigzag Stitch (5): Seam finishing, appliqué, stretch fabrics
Elastic Stitch (6): Knits and elastic materials
Blind Hem (7): Nearly invisible hemming
Overcast (8): Preventing fabric fraying
Shell Tuck (9): Decorative edge finishing
Decorative (10-12): Ornamental stitching

Tip: Test stitches on scrap fabric before starting project.

Maintenance & Cleaning

Regular maintenance ensures optimal performance.

Daily: Brush out lint from bobbin area and feed dogs
Weekly: Oil hook race and moving parts (use sewing machine oil only)
Monthly: Clean tension discs with soft brush
As needed: Replace needle after 8-10 hours of sewing

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

Troubleshooting

Symptom	Possible Cause	Corrective Action
Thread breaking	Incorrect threading/tension	Rethread machine; adjust tension; check for burrs on needle
Skipped stitches	Wrong needle/damaged needle	Replace needle; ensure correct needle type for fabric
Uneven stitches	Tension issues	Adjust upper tension; check bobbin threading
Machine jams	Thread buildup	Remove bobbin case and clean; rethread carefully
No power	Power connection	Check power cord; ensure outlet is working; check fuse
Needle breaks	Wrong needle/bent needle	Replace needle; ensure needle is inserted correctly

Reset: Turn power off and on to reset electronic functions.

Warranty Information

JL125 sewing machine comes with 25-year limited warranty covering mechanical parts. Warranty does not cover needles, belts, light bulbs, or damage from misuse. For warranty service, contact authorized service centers with proof of purchase. Keep machine clean and properly maintained to preserve warranty coverage.

Customer Support: 1-800-SEW-HELP | www.jlsewing.com