Singer 6600C Heavy Duty Sewing Machine Manual

The Singer 6600C is a heavy-duty computerized sewing machine designed for a wide range of fabrics, from delicate silks to heavy denim and leather. It features 110 built-in stitches, an automatic needle threader, a top drop-in bobbin, adjustable presser foot pressure, a powerful motor, and a large LCD screen. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Heavy-duty metal frame, LCD display, automatic needle threader, top drop-in bobbin system, adjustable presser foot, accessory storage, and foot pedal.

Unpacking and Setup

Carefully unpack all components and place on a stable, flat surface.

1. Remove machine from box: Lift using the carrying handle; avoid lifting by accessory tray.
2. Attach accessory tray: Slide onto the free arm until it clicks into place.
3. Install foot pedal: Connect pedal cord to machine port (usually on right side).
4. Plug into power: Connect power cord to machine and then to a 120V AC outlet.
5. Install needle: Use screwdriver to loosen needle clamp, insert needle with flat side to back, tighten.
6. Wind and insert bobbin: Follow bobbin winding instructions; place in top drop-in compartment.

WARNING! Machine is heavy; use proper lifting technique. Ensure work area is well-lit and free of obstructions.

First-Time Operation

Power on machine; LCD will illuminate. Follow these steps to begin sewing.

1. Thread the machine: Follow numbered path on machine; use automatic needle threader.
2. Select a stitch: Use stitch selection dial or buttons to choose a basic straight stitch (01).
3. Adjust stitch settings: Use length and width buttons to set default values.
4. Test on scrap fabric: Place fabric under presser foot, lower foot, and gently press pedal.
5. Practice basic controls: Use reverse stitch button, thread cutter, and speed control.

CAUTION! Keep fingers away from needle area during operation. Always turn off power when threading or changing accessories.

Specifications

• Type: Computerized Heavy-Duty Sewing Machine
• Stitches: 110 built-in stitches
• Stitch Length: Adjustable up to 6mm
• Stitch Width: Adjustable up to 7mm
• Speed: Up to 1,100 stitches per minute
• Bobbin: Top drop-in, Class 15 transparent
• Needle: Standard HAx1 sewing needle
• Presser Feet: Includes All-Purpose Foot, Zipper Foot, Buttonhole Foot, etc.
• Power Supply: 120V AC, 60Hz
• Warranty: 25-year limited warranty

Controls and Functions

Access functions via LCD screen and control buttons. Front Panel: Power switch, stitch selection dial, LCD, stitch length/width buttons, reverse stitch button, needle up/down button.

LCD Display: Shows selected stitch number, recommended foot, stitch length/width settings, and error messages.

Basic Controls: Stitch selection dial, stitch length adjustment (0-6mm), stitch width adjustment (0-7mm), reverse stitch button, automatic thread cutter button (if equipped), speed control slider, start/stop button (for sewing without pedal).

Stitch Selection and Adjustment

Use stitch selection dial to browse categories: utility, decorative, stretch, buttonholes.

1. Turn dial to desired stitch number; LCD will update.
2. Adjust length for fabric: Longer for basting, shorter for fine fabrics.
3. Adjust width for zigzag or decorative stitches.
4. For buttonholes: Select buttonhole stitch (usually #36-39), use buttonhole foot for automatic sizing.
5. For stretch fabrics: Use stretch stitches (numbers with "S" icon) to prevent popped seams.

Tip: Refer to stitch guide in manual for recommended settings for each fabric type.

Advanced Features

Automatic Needle Threader: Pull down lever, hook thread around guide, pull lever back up.

1. Programmable Needle Up/Down: Set preference in settings menu.
2. Automatic Thread Cutter: Press button to trim top and bobbin threads (optional).
3. Mirror Imaging: Duplicate stitch pattern in reverse.
4. Memory Function: Save custom stitch settings.
5. Adjustable Presser Foot Pressure: Dial on top of machine for thick or thin fabrics.
6. Free Arm: Remove accessory tray for sewing cylindrical items.

WARNING! Do not force dials or buttons. Always use correct presser foot for selected stitch.

Maintenance & Cleaning

Unplug machine before cleaning. Regular maintenance ensures optimal performance.

1. Clean lint from bobbin area: Remove bobbin and use small brush to clean race and feed dogs.
2. Oil machine: Apply 1-2 drops of Singer sewing machine oil to designated points (see diagram) every 8-10 hours of use.
3. Wipe exterior: Use soft, dry cloth. Do not use chemicals or abrasives.
4. Needle replacement: Change needle after every project or 8 hours of sewing.

CAUTION! Never use compressed air to clean machine as it can force lint into mechanisms. Use only recommended oil.

Regulatory Information

FCC Compliance: This device complies with Part 15 of FCC Rules. Operation is subject to conditions: (1) device must not cause harmful interference, (2) device must accept any interference received. Copyright © Singer Manufacturing Company. All trademarks are property of Singer. For support, visit www.singer.com or contact 1-800-4-SINGER.

Troubleshooting

Reset: Turn machine off, unplug for 60 seconds, then restart.

Service: 1-800-4-SINGER; www.singer.com for authorized service centers.