Janome Ezy Lock 304 Limited Edition Manual

The Janome Ezy Lock 304 Limited Edition is a professional-grade serger/overlock machine featuring 2/3/4-thread capability, differential feed, rolled hem function, color-coded threading system, built-in rolled hem stitch, adjustable stitch length and width, free arm capability, built-in needle threader, automatic thread tension, and built-in LED lighting. Designed for precision sewing with easy operation for both beginners and advanced users. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Safety Instructions 3. Machine Setup 4. Technical Specifications 5. Controls and Functions 6. Threading Instructions 7. Stitch Selection 8. Maintenance & Cleaning 9. Accessories 10. Warranty Information 11. Troubleshooting

Features at a Glance

Key components: Color-coded threading system, differential feed mechanism, stitch length/width dials, free arm, built-in LED light, accessory storage.

Feature	Description
Threading System	Color-coded for easy upper/lower looper and needle threading
Differential Feed	Adjustable from 0.7 to 2.0 for various fabric types
Stitch Options	2/3/4-thread overlock, rolled hem, flatlock stitches
Stitch Length	Adjustable from 1.0mm to 4.0mm
Stitch Width	Adjustable from 3.0mm to 7.0mm
Free Arm	Convertible for sewing cuffs and sleeves
Built-in LED Light	Bright illumination of sewing area
Rolled Hem	Quick-change function for fine edge finishing
Automatic Tension	Pre-set tension for different stitch types
Accessory Storage	Built-in compartment for tools and accessories

Safety Instructions

Read all instructions before operating the machine.

Always disconnect power before threading or changing needles.
Keep fingers away from moving parts and cutting blades.
Use only Janome-approved needles and accessories.
Do not operate with damaged cord or plug.
Keep work area well-lit and clear of obstructions.

WARNING! Never operate with guards removed. Keep hair and loose clothing away from moving parts.

Machine Setup

Unpack and assemble machine on stable surface.

Remove all packaging materials and protective covers.
Attach foot controller to machine and power outlet.
Install needle following directional markings.
Thread machine following color-coded guides.
Connect to power source and test operation.

CAUTION! Ensure machine is on flat, stable surface before operation.

Technical Specifications

Machine Type: 2/3/4-thread Serger/Overlock
Stitches: Overlock, rolled hem, flatlock
Stitch Length: 1.0mm - 4.0mm adjustable
Stitch Width: 3.0mm - 7.0mm adjustable
Differential Feed: 0.7 - 2.0 ratio
Speed: Up to 1300 stitches per minute
Lighting: Built-in LED light
Power Requirements: 120V AC, 60Hz
Weight: 15.4 lbs (7 kg)
Warranty: 25-year limited warranty

Controls and Functions

Main controls located on front and side panels.

Front Panel: Stitch length dial, stitch width dial, differential feed dial, tension dials, rolled hem lever.

Side Panel: Handwheel, power switch, foot pedal connector, thread cutter.

Stitch Adjustment: Length (1.0-4.0mm), Width (3.0-7.0mm), Differential Feed (0.7-2.0), Thread Tension (0-9). Rolled Hem: Quick-change lever for converting to narrow hemming.

Threading Instructions

Follow color-coded threading system for proper operation.

Raise presser foot and needle to highest position.
Follow numbered threading sequence (1-4).
Use color-coded guides: Red=upper looper, Blue=lower looper, Green=right needle, Yellow=left needle.
Ensure threads are properly seated in tension discs.
Test stitch on fabric scrap before beginning project.

Tip: Always thread with presser foot raised to ensure proper tension setting.

Stitch Selection

Select appropriate stitch for your fabric and project.

4-thread Overlock: Strong seam for woven fabrics
3-thread Overlock: Standard finish for most fabrics
2-thread Overlock: Lightweight fabrics and decorative edges
Rolled Hem: Narrow hem for delicate fabrics
Flatlock: Decorative seam for stretch fabrics

WARNING! Always test stitch on fabric scrap before sewing project.

Maintenance & Cleaning

Regular maintenance ensures optimal performance.

Clean lint and dust from feed dogs and loopers after each use.
Oil machine according to maintenance schedule.
Replace needles regularly (every 8-10 hours of sewing).
Check and clean cutting blades monthly.
Store machine covered when not in use.

CAUTION! Always unplug machine before cleaning or maintenance.

Accessories

Included accessories for enhanced functionality.

Standard Overlock Foot
Rolled Hem Foot
Thread Nets (4)
Lint Brush
Needle Set
Hex Wrenches
Instruction Manual
Power Cord & Foot Controller

Warranty Information

Janome Ezy Lock 304 Limited Edition comes with 25-year limited warranty covering mechanical parts. Electronic components covered for 2 years. Labor covered for 1 year. Warranty valid only with proof of purchase from authorized dealer. For warranty service, contact authorized Janome service center.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Thread breaking	Incorrect threading/tension	Re-thread following color codes; adjust tension
Uneven stitches	Differential feed setting	Adjust differential feed for fabric type
Fabric not feeding	Presser foot pressure	Check presser foot is lowered; clean feed dogs
Loops on fabric	Looper timing	Check looper threading; adjust looper tension
Machine jams	Thread buildup	Clean loopers and feed dogs; re-thread properly

Service: Contact authorized Janome service center for repairs.

Support: 1-800-631-0183; www.janome.com