Janome Juno 3434D User Manual

The Janome Juno 3434D is a versatile sewing machine featuring 34 built-in stitches, 4-step buttonhole, drop feed for free-motion sewing, built-in needle threader, top drop-in bobbin system, stitch length and width adjustment, reverse sewing, and free arm capability. Suitable for beginners and experienced sewers alike, this manual covers setup, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Installation & Setup 3. Basic Operation 4. Specifications 5. Controls and Functions 6. Stitch Selection 7. Maintenance & Care 8. Troubleshooting 9. Accessories 10. Warranty Information

Features at a Glance

Key components: 34 built-in stitches, 4-step buttonhole, free arm, drop feed, built-in needle threader, top drop-in bobbin system.

FeatureDescription
Built-in stitches34 utility and decorative stitches including stretch stitches
4-step buttonholeEasy and precise buttonhole creation
Free armFor sewing cuffs, sleeves, and other cylindrical items
Drop feedFor free-motion sewing and darning
Built-in needle threaderAutomatic needle threading for convenience
Top drop-in bobbinEasy bobbin loading with clear cover
Stitch length adjustment0-4mm stitch length control
Stitch width adjustment0-5mm stitch width control
Reverse sewingFor reinforcing seams
Power and light switchIntegrated on/off switch with built-in work light

Installation & Setup

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

  1. Remove machine from packaging and remove all protective materials.
  2. Attach power cord to machine and plug into appropriate power outlet.
  3. Install foot controller and connect to machine.
  4. Install needle following proper orientation (flat side to back).
  5. Wind and install bobbin following threading diagram.
  6. Thread upper thread using built-in needle threader.

WARNING! Keep fingers away from needle area during operation. Always unplug machine when not in use or during maintenance.

Basic Operation

Power on machine; select desired stitch and begin sewing.

  1. Select stitch: Turn stitch selection dial to desired pattern.
  2. Adjust stitch length: Use stitch length dial (0-4mm).
  3. Adjust stitch width: Use stitch width dial (0-5mm).
  4. Lower presser foot: Use presser foot lever.
  5. Begin sewing: Press foot controller gently.
  6. Reverse sewing: Hold reverse button to reinforce stitches.
  7. Raise needle: Turn handwheel toward you to raise needle.

CAUTION! Always raise needle before removing fabric. Never pull fabric while needle is in material.

Specifications

Controls and Functions

Front Panel: Stitch selection dial, stitch length dial, stitch width dial, reverse button, bobbin winder.

Additional Controls: Power/light switch, presser foot lever, handwheel, drop feed lever, free arm conversion.

Stitch Selection: Turn dial to select from 34 built-in stitches. Stitch Length: Adjust for fabric type and purpose. Stitch Width: Adjust for decorative stitches and zigzag. Reverse: Hold button to sew backwards for reinforcement. Bobbin Winding: Follow marked path for proper bobbin winding.

Stitch Selection

34 built-in stitches including straight, zigzag, stretch, and decorative patterns.

  1. Straight Stitch: For basic sewing and seams
  2. Zigzag Stitch: For finishing edges and appliqué
  3. Blind Hem Stitch: For nearly invisible hems
  4. Stretch Stitches: For knit fabrics
  5. Decorative Stitches: For embellishment
  6. Buttonhole Stitch: 4-step process for perfect buttonholes

Tip: Always test stitch on scrap fabric before sewing project.

Maintenance & Care

Regular maintenance ensures optimal performance and longevity.

  1. Clean lint and dust from bobbin area regularly
  2. Oil machine as specified in manual (use sewing machine oil only)
  3. Change needles regularly (every 8-10 hours of sewing)
  4. Use proper needle type for fabric being sewn
  5. Store machine covered when not in use
  6. Use quality thread to prevent lint buildup

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

Troubleshooting

SymptomPossible CauseCorrective Action
Machine won't runPower connectionCheck power cord connection; ensure switch is on
Thread breakingTension/needleCheck thread tension; replace needle; rethread machine
Uneven stitchesTension/threadingRethread both upper and bobbin threads; adjust tension
Needle breakingNeedle/bent needleReplace needle; ensure proper installation; check for bent needle
Fabric not feedingFeed dogsEnsure feed dogs are raised; clean feed dog area
Bobbin issuesWinding/insertionRewind bobbin evenly; ensure proper insertion direction

Reset: Unplug machine for 30 seconds if electronic issues occur.

Accessories

Standard accessories included with Janome Juno 3434D:

Optional Accessories: Additional presser feet available for specialized techniques.

Warranty Information

Janome provides limited warranty coverage. Warranty period and terms may vary by region. Register your product online for warranty validation. For service, contact authorized Janome service centers only. Keep original receipt as proof of purchase.

For support, visit www.janome.com or contact your local Janome dealer.

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