Singer HD6600C User Manual

The Singer HD6600C is a heavy-duty sewing machine designed for home and light commercial use, featuring a powerful motor, multiple stitch patterns, automatic needle threader, adjustable presser foot pressure, built-in LED lighting, and a comprehensive set of accessories for various sewing projects. 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 & Adjustment 7. Accessories & Attachments 8. Maintenance & Cleaning 9. Regulatory Information 10. Troubleshooting

Features at a Glance

Key components: Heavy-duty metal frame, built-in stitch patterns, automatic needle threader, drop-in bobbin system, adjustable stitch length/width, speed control slider, and accessory storage compartment.

Feature	Description
Built-in Stitches	60 stitch patterns including utility, decorative, and stretch stitches
Automatic Needle Threader	Easy threading with push-button mechanism
Drop-in Bobbin	Top-loading, clear-view bobbin system
LED Work Light	Bright illumination of sewing area
Adjustable Presser Foot Pressure	For different fabric thicknesses
Speed Control Slider	Adjustable sewing speed
Free Arm	For sewing cuffs and sleeves
Stitch Length/Width Dial	Precise adjustment of stitch dimensions
Reverse Stitch Button	For reinforcing seams
Power Switch	Turns machine on/off

Installation & Setup

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

Remove all packaging materials and protective covers.
Attach power cord to machine and plug into 120V AC outlet.
Install foot controller into designated port.
Raise presser foot and install needle securely.
Wind bobbin using bobbin winder and insert into bobbin case.
Thread upper thread following numbered path diagram.

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

First-Time Operation

Power on machine; follow initial setup steps.

Select straight stitch (pattern 1) using stitch selector dial.
Place fabric under presser foot, lower presser foot lever.
Gently press foot controller to begin sewing.
Practice on scrap fabric to adjust tension and stitch settings.
Use reverse stitch button at beginning and end of seams.
Adjust stitch length/width as needed for fabric type.

CAUTION! Always start with needle in highest position. Never pull fabric while sewing.

Specifications

Model: Singer HD6600C Heavy Duty
Stitches: 60 built-in stitches
Motor: Heavy-duty 1.0 amp motor
Maximum Stitch Length: 4mm
Maximum Stitch Width: 6mm
Bobbin: Class 15 transparent top-loading
Needle System: HAx1/130/705H
Presser Feet: 6 included (all-purpose, zipper, buttonhole, etc.)
Power Supply: 120V AC, 60Hz
Weight: 14.5 lbs (6.6 kg)
Warranty: 25-year limited warranty

Controls and Settings

Access controls via front panel and side dials.

Front Panel: Power switch, stitch selector dial, stitch length dial, stitch width dial, reverse stitch button, automatic needle threader.

Stitch Selection: Turn dial to select from 60 patterns (1-60). Stitch Adjustment: Length (0-4mm), Width (0-6mm). Tension Control: Adjust upper thread tension dial (0-9). Presser Foot Pressure: Adjust lever for different fabric thicknesses. Speed Control: Foot controller sensitivity adjustment.

Stitch Selection & Adjustment

Select appropriate stitch for your project.

Refer to stitch chart for pattern numbers and recommended uses.
For straight stitching: Use pattern 1, adjust length for fabric weight.
For zigzag: Use pattern 2-5, adjust width for seam finishing.
For buttonholes: Use automatic 1-step buttonhole (pattern 23).
For stretch fabrics: Use stretch stitches (patterns 40-50).
Test stitch on fabric scrap before starting project.

Tip: Always lower presser foot before sewing. Use appropriate needle for fabric type.

Accessories & Attachments

Includes: All-purpose foot, zipper foot, buttonhole foot, button sewing foot, blind hem foot, seam ripper, needles, bobbins, screwdriver, lint brush, auxiliary spool pin, spool cap.

All-purpose foot: For general sewing.
Zipper foot: For installing zippers.
Buttonhole foot: For automatic buttonholes.
Button sewing foot: For attaching buttons.
Blind hem foot: For invisible hems.
Seam ripper: For removing stitches.

WARNING! Ensure machine is off when changing accessories. Use correct foot for each function.

Maintenance & Cleaning

Regular maintenance ensures optimal performance.

Unplug machine before cleaning.
Remove needle plate to clean lint from feed dogs and bobbin area.
Use small brush to remove dust and lint.
Oil machine as per manual instructions (use Singer oil only).
Wipe exterior with soft, dry cloth.
Replace needle after 8-10 hours of sewing.

CAUTION! Never use compressed air to clean machine. Do not immerse in water.

Regulatory Information

UL Listed: Complies with UL safety standards. FCC Part 15: Class B digital device. Copyright © Singer Manufacturing Company. All rights reserved. For support, visit www.singer.com or contact 1-800-4-SINGER. Made for household use. Not intended for commercial sewing applications.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Machine won't start	Power connection	Check power cord connection; ensure power switch is on.
Thread breaking	Tension/needle	Rethread machine; check needle for damage; adjust tension.
Skipped stitches	Needle/thread	Replace needle; ensure correct needle for fabric; rethread.
Fabric not feeding	Presser foot/feed dogs	Lower presser foot; clean feed dogs; check stitch length setting.
Uneven stitches	Tension/bobbin	Check bobbin winding; adjust upper tension; clean bobbin area.
Noisy operation	Lint/thread jam	Clean machine thoroughly; remove thread jam; oil if needed.

Reset: Turn off machine, unplug for 5 minutes, then restart.

Service: 1-800-4-SINGER; www.singer.com