Janome Memory Craft 4900QC Sewing Machine Manual

The Janome Memory Craft 4900QC is a computerized sewing machine featuring 140 built-in stitches, automatic needle threader, one-step buttonhole, drop feed for free-motion sewing, speed control slider, start/stop button, built-in needle plate thread cutter, LCD screen display, knee lifter, and advanced memory functions. Powered by standard household electrical outlet. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Installation & Setup 3. First-Time Operation 4. Specifications 5. Controls and Settings 6. Stitch Selection & Memory 7. Advanced Functions 8. Maintenance & Cleaning 9. Accessories 10. Warranty Information 11. Troubleshooting

Features at a Glance

Key components: Computerized control panel, LCD display, automatic needle threader, built-in stitches, drop feed mechanism, knee lifter, and accessory storage.

FeatureDescription
Built-in Stitches140 stitches including utility, decorative, and quilting stitches
Automatic Needle ThreaderOne-touch needle threading system
One-Step ButtonholeAutomatically creates perfect buttonholes
Drop FeedLowers feed dogs for free-motion sewing
Speed Control SliderAdjustable sewing speed from slow to fast
Start/Stop ButtonSew without foot control
LCD ScreenDisplays stitch selection and settings
Memory FunctionStores custom stitch combinations
Knee LifterRaises presser foot using knee control
Needle Plate Thread CutterBuilt-in thread cutting convenience

Installation & Setup

Unpack and inspect all contents. Place on stable sewing table.

  1. Remove packaging materials and protective covers.
  2. Install foot control and power cord into appropriate ports.
  3. Attach knee lifter to designated slot if desired.
  4. Plug power cord into standard electrical outlet.
  5. Install needle and thread according to threading diagram.
  6. Insert bobbin following bobbin winding instructions.

WARNING! Machine is heavy; lift with care. Ensure stable surface before operation.

First-Time Operation

Power on machine; familiarize with basic controls.

  1. Thread machine: Follow numbered threading path on machine.
  2. Use automatic needle threader: Push lever down to thread needle.
  3. Select basic stitch: Turn stitch selection dial to straight stitch.
  4. Practice stitching: Use scrap fabric to test machine operation.
  5. Adjust stitch length and width: Use control buttons as needed.
  6. Experiment with speed control: Use slider for comfortable pace.

CAUTION! Keep fingers away from moving needle. Always turn off when not in use.

Specifications

Controls and Settings

Access functions via control panel and LCD display. Front Panel: Power switch, stitch selection dial, memory buttons, reverse stitch button, needle up/down button.

Control Panel: Stitch selection, length/width adjustment, mirror image, memory save/recall, start/stop, speed control slider.

Stitch Settings: Length (0-5mm), Width (0-7mm), mirror imaging, twin needle capability. Memory Functions: Save custom stitch combinations (up to 30 patterns). Utility: Automatic thread cutter, needle threader, bobbin winding, drop feed control.

Stitch Selection & Memory

Choose from 140 built-in stitches including utility, decorative, and quilting stitches.

  1. Select stitch category: Turn dial to desired stitch group.
  2. Choose specific stitch: Use arrow buttons to select stitch number.
  3. Adjust settings: Modify length and width as needed.
  4. Save to memory: Press MEMORY button to store custom settings.
  5. Recall memory: Access saved stitches from memory bank.
  6. Combine stitches: Create custom stitch sequences.

Tip: Practice new stitches on scrap fabric before using on projects.

Advanced Functions

One-Step Buttonhole: Automatically measures and sews perfect buttonholes.

  1. Select buttonhole stitch on dial.
  2. Attach buttonhole foot.
  3. Place button in foot holder.
  4. Machine automatically sews complete buttonhole.

Drop Feed: Lower feed dogs for free-motion quilting and embroidery.

Knee Lifter: Raise presser foot hands-free for fabric positioning.

Start/Stop Button: Sew without foot control for precise speed management.

Maintenance & Cleaning

Unplug machine before cleaning. Regular maintenance ensures optimal performance.

  1. Clean lint from bobbin area after each project.
  2. Oil machine according to lubrication points diagram.
  3. Wipe exterior with soft, dry cloth.
  4. Replace needle regularly (every 8-10 hours of sewing).
  5. Check and clean feed dogs periodically.

CAUTION! Never use compressed air to clean machine. Avoid liquid cleaners.

Accessories

Included standard accessories:

Warranty Information

Janome provides limited warranty coverage. 25-year warranty on mechanical parts, 5-year warranty on electronic components, 1-year warranty on labor. Warranty registration card included with machine. For warranty service, contact authorized Janome dealer. Keep original receipt as proof of purchase.

Troubleshooting

SymptomPossible CauseCorrective Action
Machine won't startPower connectionCheck power cord connection; ensure foot control is plugged in properly.
Thread breakingTension/needle issuesRe-thread machine; check needle for damage; adjust tension settings.
Uneven stitchesThreading/bobbinRe-thread upper and lower threading; check bobbin installation.
Needle threader not workingPosition/obstructionEnsure needle is in highest position; check for thread obstruction.
Fabric not feedingFeed dog positionCheck if feed dogs are lowered; raise feed dogs for normal sewing.
Error codes on displayElectronic issuesTurn machine off and on; consult error code chart in manual.

Reset: Turn power off and on to clear electronic errors.

Service: Contact authorized Janome service center for repairs.

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