Janome CompuLock 888 Serger Manual

The Janome CompuLock 888 is a professional-grade serger featuring computerized stitch selection, differential feed system, easy threading system, built-in rolled hem capability, adjustable stitch length and width, built-in rolled hem foot, color-coded threading guides, free arm capability, and built-in thread cutter. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Computerized stitch selection panel, differential feed system, color-coded threading system, built-in rolled hem capability, free arm design.

Installation & Setup

Unpack and inspect contents. Place on stable sewing surface.

1. Remove packaging materials and protective covers
2. Position machine on sturdy table or sewing cabinet
3. Connect foot control pedal to machine
4. Plug power cord into electrical outlet
5. Install accessories: needles, presser feet, spool pins
6. Thread machine following color-coded guides

WARNING! Machine is heavy; lift with care to avoid injury. Ensure stable surface placement.

First-Time Operation

Power on machine; follow setup procedure.

1. Insert needle properly with flat side to back
2. Thread upper and lower loopers following color codes
3. Select basic overlock stitch for testing
4. Test on scrap fabric to adjust tension settings
5. Adjust stitch length and width as needed
6. Practice with different fabric types

CAUTION! Keep fingers away from moving needle and cutting blade during operation.

Specifications

• Stitch Types: 2/3/4-thread overlock, rolled hem, flatlock
• Stitch Length: 1.0mm to 4.0mm adjustable
• Stitch Width: 2.0mm to 7.0mm adjustable
• Differential Feed: 0.7 to 2.0 ratio
• Speed: Up to 1300 stitches per minute
• Needle System: HAx1 SP
• Presser Feet: Standard, rolled hem, blind hem included
• Power Source: 120V AC, 60Hz
• Weight: 15.4 lbs (7 kg)
• Dimensions: 15" x 11" x 12"

Controls and Settings

Access stitch selection via digital control panel. Front Panel: Power switch, stitch selection buttons, stitch length/width controls, differential feed adjustment.

Control Panel: Power indicator, stitch pattern buttons, length/width adjustment, differential feed control, rolled hem selector.

Stitch Settings: Length (1.0-4.0mm), Width (2.0-7.0mm), Differential Feed (0.7-2.0). Tension: Upper looper, lower looper, needle threads adjustable. Special Functions: Rolled hem conversion, stitch balancing, thread tension memory.

Threading the Machine

Follow color-coded threading guides for proper setup.

1. Turn off power before threading
2. Follow numbered threading sequence
3. Use color-coded guides: yellow (upper looper), blue (lower looper), red (right needle), green (left needle)
4. Ensure threads are properly seated in tension discs
5. Pull threads under presser foot toward back
6. Test thread tension on scrap fabric

Tip: Always thread with presser foot raised to ensure proper tension disc engagement.

Stitch Selection & Techniques

Supports various serger stitches for different applications.

1. Basic Overlock: General seam finishing
2. Rolled Hem: Narrow hem for delicate fabrics
3. Flatlock: Decorative seam for stretch fabrics
4. Coverstitch: Professional hemming (with conversion)
5. Differential Feed Adjustment: For stretchy or slippery fabrics
6. Gathering: Using differential feed and tension
7. Blind Hem: Nearly invisible hemming
8. Decorative Stitching: Using specialty threads

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

Maintenance & Cleaning

Regular maintenance ensures optimal performance.

1. Unplug machine before cleaning
2. Remove lint buildup with brush after each use
3. Oil machine according to maintenance schedule
4. Clean race hook area regularly
5. Check needle condition and replace when dull
6. Inspect cutting blades for sharpness

CAUTION! Use only Janome recommended oil and cleaning tools.

Safety Information

Always follow safety guidelines to prevent injury.

• Keep fingers away from moving needle and cutting blade
• Unplug machine when not in use and during maintenance
• Do not operate with damaged power cord
• Use proper lighting in work area
• Keep work area clean and organized
• Store machine out of reach of children

Troubleshooting

Reset: Turn power off and on to reset computerized functions.

Service: Contact authorized Janome service center for repairs.