3321 Singer Sewing Machine Manual

The Singer 3321 is a versatile mechanical sewing machine designed for home use, featuring 21 built-in stitches, automatic 4-step buttonhole, free arm capability, built-in needle threader, adjustable stitch length and width, drop-in bobbin system, and multiple presser feet. Powered by 120V AC, this machine is ideal for beginners and experienced sewers alike. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Mechanical sewing machine with 21 stitches, free arm, built-in needle threader, drop-in bobbin system, multiple presser feet.

Installation & Setup

Unpack and inspect contents. Place on stable surface.

1. Remove machine from packaging: Lift carefully from carrying case.
2. Set up workspace: Place on sturdy table with adequate lighting.
3. Connect foot control: Plug into machine and power outlet.
4. Install needle: Loosen needle clamp screw, insert needle with flat side to back.
5. Wind bobbin: Follow bobbin winding instructions in manual.

WARNING! Keep fingers away from needle area during operation. Always unplug when not in use.

First-Time Operation

Power on machine; follow setup steps.

1. Thread machine: Use built-in needle threader for easy threading.
2. Insert bobbin: Drop bobbin into case with thread unwinding counterclockwise.
3. Select stitch: Turn stitch selection dial to desired pattern.
4. Adjust settings: Set stitch length and width as needed.
5. Test sew: Use scrap fabric to test stitch quality.

CAUTION! Always start with needle in highest position. Keep work area clean and organized.

Specifications

• Type: Mechanical Sewing Machine
• Stitches: 21 built-in stitches
• Buttonhole: 4-step automatic
• Stitch Length: Adjustable up to 4mm
• Stitch Width: Adjustable up to 5mm
• Bobbin: Drop-in system, Class 15 transparent
• Needle: HAx1 sewing system
• Presser Feet: 4 included (all-purpose, zipper, buttonhole, button sewing)
• Power: 120V AC, 60Hz
• Free Arm: Yes, convertible
• Weight: 12.3 lbs (5.6 kg)

Controls and Settings

Access controls via front panel dials and levers. Stitch Selection Dial: Turn to select from 21 stitches. Stitch Length Dial: Adjust from 0-4mm. Stitch Width Dial: Adjust from 0-5mm. Reverse Stitch Lever: Hold down for reverse stitching.

Additional Controls: Bobbin Winder, Spool Pins, Thread Tension Dial, Presser Foot Lifter, Handwheel.

Stitch Settings: Straight stitch (position 1), Zigzag (position 2-5), Decorative stitches (positions 6-21). Tension: Adjust for different fabric types. Presser Foot Pressure: Fixed for general sewing.

Stitch Selection

21 built-in stitches for various sewing applications.

1. Straight Stitch: Basic sewing, position 1
2. Zigzag Stitch: Overcasting, appliqué, positions 2-5
3. Blind Hem Stitch: Nearly invisible hems
4. Stretch Stitches: For knit fabrics
5. Decorative Stitches: Embellishment, positions 6-21
6. Buttonhole: 4-step automatic buttonhole

Tip: Always test stitch on scrap fabric before sewing project.

Threading & Bobbin

Proper threading ensures smooth operation.

1. Raise needle: Turn handwheel to highest position.
2. Place spool: On spool pin with thread unwinding counterclockwise.
3. Thread machine: Follow numbered threading guide on machine.
4. Use needle threader: Push lever down and hook thread through needle.
5. Wind bobbin: Place empty bobbin on winder, follow winding path.
6. Insert bobbin: Drop into case with thread unwinding counterclockwise.

WARNING! Ensure machine is unplugged during threading. Keep fingers clear of needle.

Maintenance & Cleaning

Regular maintenance ensures optimal performance.

1. Clean lint: Remove bobbin case and clean lint buildup.
2. Oil machine: Use sewing machine oil on moving parts as directed.
3. Change needle: Replace needle after every project or if damaged.
4. Check belt: Ensure drive belt is intact and properly tensioned.

CAUTION! Always unplug before cleaning. Use only sewing machine oil.

Accessories

Included accessories for various sewing tasks.

Safety Information

Important safety precautions for sewing machine operation.

• Always unplug machine when not in use
• Keep fingers away from moving needle
• Do not sew over pins
• Use proper lighting in work area
• Keep machine clean and free of lint
• Use only Singer-approved accessories
• Store in dry, dust-free location

EMERGENCY: In case of electrical issues, immediately unplug machine.

Troubleshooting

Service: For technical support, contact Singer Customer Service at 1-800-4-SINGER or visit www.singer.com