Janome 134D Overlocker Manual

The Janome 134D Overlocker is a versatile 3/4 thread serger designed for professional-quality finishing on a wide range of fabrics. This compact machine features differential feed for stretch fabrics, rolled hem capability, easy threading system, built-in rolled hem foot, free arm capability, and adjustable stitch length and width. Below are key sections covering setup, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Unpacking and Setup 3. First-Time Operation 4. Technical Specifications 5. Controls and Settings 6. Threading Instructions 7. Stitch Selection 8. Maintenance & Cleaning 9. Safety Information 10. Troubleshooting

Features at a Glance

Key components: 3/4 thread overlock capability, Differential feed system, Built-in rolled hem, Free arm design, Easy threading system, Stitch length and width controls.

Feature	Description
Differential Feed	Prevents stretching or puckering on various fabrics
Rolled Hem	Creates narrow, professional hems on lightweight fabrics
Free Arm	Allows easy sewing of sleeves and other tubular items
Stitch Length Control	Adjustable from 1-4mm for different fabric types
Stitch Width Control	Adjustable from 5-7mm for various seam finishes
Cutting Width	Adjustable cutting width for different seam allowances
Power Switch	Turns machine on/off
Thread Tension Dials	Individual tension controls for upper and lower loopers
Presser Foot Lever	Raises and lowers presser foot
Handwheel	Manual control of needle movement

Unpacking and Setup

Carefully unpack all components and place on stable surface.

Remove machine from packaging: Lift carefully from box.
Attach accessories: Install standard foot and thread stand.
Position machine: Place on sturdy table at comfortable height.
Connect to power: Plug into appropriate electrical outlet.
Install needle: Follow arrow direction for proper installation.

WARNING! Machine contains sharp needles and cutting blades; handle with care during setup.

First-Time Operation

Power on machine; follow threading sequence carefully.

Thread machine: Follow color-coded threading path for upper looper, lower looper, and needles.
Select stitch: Choose appropriate stitch for your project (overlock, rolled hem, etc.).
Test on scrap fabric: Always test settings on fabric scrap before starting project.
Adjust tensions: Fine-tune thread tensions for balanced stitches.
Set differential feed: Adjust based on fabric type (normal, gathering, stretching).

CAUTION! Keep fingers away from cutting blades and needles during operation.

Technical Specifications

Machine Type: 3/4 Thread Overlocker/Serger
Stitch Types: Overlock, Rolled Hem, Flatlock
Stitch Length: 1-4mm adjustable
Stitch Width: 5-7mm adjustable
Differential Feed: 0.7-2.0 ratio
Speed: Up to 1300 stitches per minute
Needles: HAx1 SP system, size 11/80 or 14/90
Thread: Standard serger thread
Power Requirements: 110-120V, 60Hz
Dimensions: Compact design for easy storage

Controls and Settings

Main controls located on front and side of machine.

Front Panel: Power switch, Stitch length dial, Stitch width dial, Differential feed dial, Presser foot pressure adjustment.

Thread Tension: Four individual dials for upper looper, lower looper, right needle, left needle. Stitch Selection: Lever for switching between overlock and rolled hem. Differential Feed: Dial for adjusting feed ratio (lower for gathering, higher for stretching). Presser Foot: Lever for raising/lowering, adjustable pressure for different fabrics.

Threading Instructions

Follow color-coded threading path for proper operation.

Upper Looper: Follow blue threading path from spool to looper.
Lower Looper: Follow green threading path from spool to looper.
Right Needle: Follow red threading path through tension disc and needle.
Left Needle: Follow yellow threading path (when using 4-thread).
Check tensions: Ensure threads are properly seated in tension discs.

Tip: Always thread in proper sequence and raise presser foot when threading.

Stitch Selection

Multiple stitch options for different sewing applications.

3-Thread Overlock: Basic overlock stitch for seam finishing.
4-Thread Safety Stitch: Strong seam for garment construction.
Rolled Hem: Narrow hem for lightweight fabrics and edges.
Flatlock Stitch: Decorative stitch for joining fabrics flat.
Gathering: Use differential feed for controlled gathering.
Lettuce Edge: Stretch fabric edge for decorative finish.

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

Maintenance & Cleaning

Regular maintenance ensures optimal performance.

Daily cleaning: Remove lint from loopers and feed dogs.
Weekly oiling: Apply sewing machine oil to designated points.
Blade care: Keep cutting blades clean and sharp.
Needle replacement: Change needles regularly for best results.
Storage: Cover machine when not in use to prevent dust accumulation.

CAUTION! Unplug machine before performing any maintenance or cleaning.

Safety Information

Always follow safety guidelines to prevent injury.

Keep fingers away from cutting blades and needles
Unplug machine when not in use or during maintenance
Use proper lighting for clear visibility
Keep work area clean and organized
Do not operate if cord is damaged
Supervise children and inexperienced users

Troubleshooting

Symptom	Possible Cause	Corrective Action
Thread breaking	Incorrect tension or threading	Rethread following color codes; adjust tension settings.
Uneven stitches	Differential feed setting	Adjust differential feed ratio for fabric type.
Fabric not feeding	Presser foot pressure	Increase presser foot pressure; clean feed dogs.
Loops on fabric	Looper timing	Check looper threading; adjust looper tensions.
Machine jams	Thread buildup	Remove fabric, cut threads, clean race area.
Poor cutting	Dull blades	Replace cutting blades; ensure proper alignment.

Service: Contact authorized Janome service center for technical issues.

Support: Visit www.janome.com or contact customer service for assistance.