Janome Memory Craft 4900QC Manual

The Janome Memory Craft 4900QC is a computerized sewing machine featuring 140 built-in stitches, 5 one-step buttonholes, automatic needle threader, built-in thread cutter, speed control slider, start/stop button, drop feed, memory function, quilting capabilities, and advanced embroidery features. Powered by standard household electrical outlet. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Unpacking and Setup 3. First-Time Operation 4. Specifications 5. Controls and Functions 6. Stitch Selection 7. Buttonhole and Specialty Stitches 8. Memory and Programming 9. Maintenance & Cleaning 10. Warranty Information 11. Troubleshooting

Features at a Glance

Key components: LCD display, automatic needle threader, built-in thread cutter, stitch selection dial, speed control slider, start/stop button, drop feed lever, presser foot pressure dial.

Feature	Description
LCD Display	Shows selected stitch, stitch length/width, and machine status
Automatic Needle Threader	Easy needle threading with lever mechanism
Built-in Thread Cutter	Convenient thread cutting button on front
Stitch Selection Dial	Select from 140 built-in stitches
Speed Control Slider	Adjust sewing speed from slow to fast
Start/Stop Button	Sew without foot control when engaged
Drop Feed Lever	Lower feed dogs for free-motion sewing
Presser Foot Pressure	Adjustable for different fabric types
Memory Function	Store and recall custom stitch combinations
Quilting Capabilities	Special stitches and features for quilting projects

Unpacking and Setup

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

Remove machine from packaging: Lift carefully from carrying case.
Install accessories: Attach standard presser foot, place spool pins, insert bobbin.
Connect power: Plug foot control into machine, then plug into electrical outlet.
Thread machine: Follow threading diagram for upper and lower threading.

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

First-Time Operation

Power on machine; familiarize with basic controls.

Select basic stitch: Turn stitch selection dial to straight stitch.
Thread machine: Use automatic needle threader for easy threading.
Insert bobbin: Follow bobbin loading diagram for proper insertion.
Test sew: Use scrap fabric to test stitch formation and tension.
Adjust settings: Modify stitch length and width as needed for project.

CAUTION! Keep fingers away from needle area during operation. Always use proper lighting.

Specifications

Stitches: 140 built-in stitches including utility, decorative, and quilting
Buttonholes: 5 one-step automatic buttonholes
Stitch Width: Up to 7mm maximum
Stitch Length: Up to 5mm maximum
Needle Positions: Multiple needle positions including center and left
Presser Feet: Includes standard, zipper, buttonhole, and specialty feet
Memory: Stores custom stitch combinations
Power Source: Standard household electrical outlet
Warranty: 25-year limited warranty

Controls and Functions

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

LCD Display: Shows stitch number, length, width, and recommended presser foot. Stitch Length: Adjust from 0-5mm. Stitch Width: Adjust from 0-7mm. Reverse: Engage for reinforcement stitching. Needle Position: Set needle stop up or down position.

Stitch Selection

Select from 140 built-in stitches using stitch selection dial.

Turn dial: Rotate to desired stitch number while machine is powered on.
View LCD: Confirm stitch selection and recommended settings.
Adjust length/width: Modify using adjustment dials for fabric type.
Change presser foot: Install appropriate foot for selected stitch.
Test stitch: Always test on scrap fabric before sewing project.

Tip: Refer to stitch chart for recommended uses and settings.

Buttonhole and Specialty Stitches

Automatic one-step buttonholes and specialty decorative stitches.

Select buttonhole: Choose from 5 one-step buttonhole styles.
Attach buttonhole foot: Install automatic buttonhole foot.
Position fabric: Place under foot and lower presser foot.
Engage buttonhole: Machine automatically sews complete buttonhole.
Decorative stitches: Select specialty stitches for embellishment projects.
Satin stitches: Adjust width and density for perfect satin stitching.

WARNING! Always use proper foot for selected stitch type. Test buttonhole on scrap fabric first.

Memory and Programming

Memory function stores custom stitch combinations for repeated use.

Maintenance & Cleaning

Unplug machine before cleaning. Remove lint and dust regularly.

Clean bobbin area: Remove bobbin case and brush out lint.
Oil machine: Apply sewing machine oil to designated points as directed.
Clean feed dogs: Use brush to remove accumulated lint.
Cover machine: Use dust cover when not in use.

CAUTION! Never use compressed air for cleaning. Use only recommended sewing machine oil.

Warranty Information

25-year limited warranty covering mechanical parts. Electronic components covered for 2 years. Labor covered for 1 year. Warranty registration card must be completed and returned. For service, contact authorized Janome dealer. Keep original receipt for warranty validation.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Machine won't start	Power connection	Check power cord connection; ensure foot control is plugged in properly.
Thread breaking	Tension/thread quality	Check upper threading; adjust tension; use quality thread.
Uneven stitches	Threading/tension	Re-thread completely; check bobbin insertion; clean race area.
Needle breaking	Needle type/fabric	Use correct needle for fabric; ensure needle is inserted fully.
Buttonhole issues	Foot attachment	Ensure automatic buttonhole foot is properly attached and engaged.

Reset: Turn machine off and on to reset computer functions.

Service: Contact authorized Janome dealer; 1-800-631-0183