janome serger 7034d manual

The Janome Serger 7034D is a professional-grade 3/4 thread overlock sewing machine designed for creating clean, finished edges on fabrics. This versatile serger features differential feed for handling various fabric types, easy threading system, rolled hem capability, and adjustable stitch length and width. 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. Basic Serging Techniques 8. Maintenance & Cleaning 9. Troubleshooting 10. Warranty Information

Features at a Glance

Key components: 3/4 thread overlock capability, differential feed system, color-coded threading, built-in rolled hem, free arm capability, built-in thread cutter.

Feature	Description
Stitch Types	3-thread overlock, 4-thread overlock, rolled hem
Differential Feed	Adjustable from 0.7 to 2.0 for various fabrics
Stitch Length	Adjustable from 1.0mm to 4.0mm
Stitch Width	Adjustable from 3.0mm to 7.0mm
Threading System	Color-coded for easy threading
Rolled Hem	Built-in conversion for narrow rolled hems
Free Arm	Removable flat bed for tubular sewing
Cutting Width	Adjustable cutting width up to 7mm
Speed	Up to 1300 stitches per minute
Presser Feet	Comes with standard presser foot

Safety Instructions

Always follow safety guidelines to prevent injury and machine damage.

Keep fingers away from moving parts and cutting blades during operation.
Always turn off and unplug machine when threading, cleaning, or changing needles.
Use only Janome recommended needles and accessories.
Do not operate with damaged power cord or plug.
Keep work area clean and well-lit.

WARNING! Never operate with guards removed. Keep hands clear of cutting blades.

Machine Setup

Proper setup ensures optimal performance and longevity.

Place machine on stable, flat surface at comfortable working height.
Connect foot controller to machine and plug into power outlet.
Install needle: Loosen needle clamp screw, insert needle with flat side to back, tighten screw.
Wind and install loopers and needles following color-coded threading guide.
Adjust stitch length and width according to fabric type.

CAUTION! Ensure machine is unplugged during setup procedures.

Technical Specifications

Machine Type: 3/4 Thread Overlock Serger
Stitch Types: 3-thread overlock, 4-thread safety stitch, rolled hem
Stitch Length: 1.0mm to 4.0mm adjustable
Stitch Width: 3.0mm to 7.0mm adjustable
Differential Feed: 0.7 to 2.0 ratio
Speed: Up to 1300 stitches per minute
Needles: HAx1 SP system needles, size 11/80
Power Requirements: 110-120V, 60Hz
Weight: 15.4 lbs (7 kg)
Dimensions: 14.2" x 11.4" x 12.6"

Controls and Functions

Main controls located on front and side of machine for easy access.

Front Panel: Stitch length dial, stitch width dial, differential feed dial, rolled hem lever, tension dials (4), presser foot lever, handwheel.

Side Panel: Power switch, light switch, thread cutter, free arm release.

Adjustments: Stitch length (1.0-4.0mm), stitch width (3.0-7.0mm), differential feed (0.7-2.0), thread tension (0-9), cutting width adjustment.

Threading Instructions

Follow color-coded threading path for proper operation.

Raise presser foot and turn handwheel to raise needle to highest position.
Follow color-coded guides: Red for upper looper, blue for lower looper, green/yellow for needles.
Thread upper looper first, then lower looper, then needles.
Ensure threads are properly seated in tension discs.
Pull threads under presser foot toward back of machine.

Tip: Use tweezers for easier threading of loopers.

Basic Serging Techniques

Master these fundamental serging operations for professional results.

Basic overlock: Use 3 or 4 threads for seam finishing and construction.
Rolled hem: Engage rolled hem lever for narrow, rolled edges on lightweight fabrics.
Flatlocking: Create decorative flatlock seams by adjusting tensions and using appropriate fabric.
Gathering: Use differential feed set above 1.0 for automatic gathering.
Lettuce edge: Create wavy edges on knit fabrics with differential feed and appropriate tension.
Seam finishing: Serge raw edges to prevent fraying on woven fabrics.

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

Maintenance & Cleaning

Regular maintenance ensures optimal performance and longevity.

Clean lint and debris from loopers, feed dogs, and cutting area after each use.
Oil machine according to manual instructions using only Janome recommended oil.
Replace needles regularly or when damaged.
Check and replace cutting blades when dull.
Store machine covered when not in use.

CAUTION! Unplug machine before cleaning or maintenance.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Thread breaking	Incorrect tension, damaged needle	Check tension settings, replace needle, rethread
Skipped stitches	Wrong needle type, bent needle	Replace with correct needle, ensure proper installation
Fabric not feeding	Presser foot pressure, feed dog issues	Check presser foot, clean feed dogs
Uneven stitches	Differential feed setting, tension	Adjust differential feed, balance tensions
Machine jams	Thread buildup, lint accumulation	Clean race area, remove thread tangles
Poor cutting	Dull blades, improper alignment	Replace cutting blades, adjust alignment

Warranty Information

Janome provides limited warranty covering defects in materials and workmanship. Warranty period varies by region. Keep original receipt as proof of purchase. Warranty does not cover normal wear, misuse, or unauthorized repairs. For service, contact authorized Janome service centers.

Customer Support: Contact Janome America at 1-800-631-0183 or visit www.janome.com