Singer Sewing Machine 347 Manual

The Singer Sewing Machine 347 is a classic mechanical sewing machine featuring straight and zigzag stitching, built-in buttonholer, reverse stitching capability, adjustable stitch length and width, free arm design, built-in light, and drop feed for darning and free-motion sewing. Powered by 120V AC, 60Hz. 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 Settings 6. Stitch Selection 7. Threading and Bobbin 9. Maintenance & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Mechanical sewing head, stitch selection dial, tension control, bobbin winder, free arm, built-in light, foot pedal control.

FeatureDescription
Stitch selection dialFor selecting straight and zigzag stitches
Tension control dialAdjusts upper thread tension
Bobbin winderFor winding bobbin automatically
Free armFor sewing cuffs and sleeves
Built-in lightIlluminates sewing area
Reverse stitch leverFor reinforcing stitches
Stitch length controlAdjusts stitch length from 0-4mm
Stitch width controlAdjusts zigzag width from 0-5mm
Drop feed leverLowers feed dogs for darning
Power pedalControls sewing speed

Unpacking and Setup

Unpack and inspect contents. Place on stable surface.

  1. Remove machine from packaging: Lift carefully from case.
  2. Install foot pedal: Connect to machine port.
  3. Connect power: Plug into 120V AC outlet.
  4. Install needle: Loosen needle clamp, insert needle flat side back.
  5. Wind bobbin: Follow bobbin winding instructions.

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

First-Time Operation

Power on machine; test basic functions.

  1. Thread machine: Follow numbered threading path.
  2. Insert bobbin: Place bobbin in case with thread unwinding clockwise.
  3. Select straight stitch: Set dial to straight stitch position.
  4. Test sew: Use scrap fabric to practice stitching.
  5. Adjust tension: Test on fabric scrap for balanced stitches.

CAUTION! Keep fingers away from needle during operation. Unplug when not in use.

Specifications

Controls and Settings

Main controls located on machine body: Stitch selection dial, stitch length control, stitch width control, tension dial, reverse lever.

Stitch Selection: Turn dial to select straight stitch, zigzag, or specialty stitches. Stitch Length: Adjust for shorter or longer stitches. Stitch Width: Control zigzag width. Tension: Adjust for different fabrics. Reverse: Hold lever for backstitching.

Stitch Selection

Available stitches: Straight stitch (multiple lengths), Zigzag stitch (multiple widths), Blind hem stitch, stretch stitch.

  1. Straight stitch: For basic sewing and seams
  2. Zigzag stitch: For finishing edges and decorative work
  3. Blind hem: For nearly invisible hems
  4. Stretch stitch: For knit fabrics
  5. Buttonhole: 4-step process for perfect buttonholes

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

Threading and Bobbin

Proper threading is essential for good stitch quality.

  1. Raise presser foot and needle to highest position
  2. Follow numbered threading path on machine
  3. Thread through tension discs
  4. Thread take-up lever from right to left
  5. Thread needle from front to back
  6. Wind bobbin: Place thread on spool pin, guide through tension, wind evenly
  7. Insert bobbin: Drop into case with thread unwinding clockwise

WARNING! Ensure machine is unplugged during threading.

Maintenance & Cleaning

Regular maintenance ensures optimal performance.

  1. Clean lint: Remove needle plate and clean bobbin area regularly
  2. Oil machine: Use sewing machine oil on moving parts as directed
  3. Change needle: Replace after 8-10 hours of sewing
  4. Check belt: Ensure motor belt is properly tensioned

CAUTION! Unplug machine before cleaning or maintenance.

Regulatory Information

UL Listed: Complies with safety standards for household sewing machines. Copyright © Singer Manufacturing Company. For support, visit www.singer.com or contact 1-800-4-SINGER.

Troubleshooting

SymptomPossible CauseCorrective Action
Thread breakingIncorrect threading/tensionRe-thread machine; reduce tension; check for burrs on needle.
Skip stitchesWrong needle/damaged needleReplace needle; ensure correct needle for fabric.
Machine jamsThread buildupRemove needle plate; clean bobbin area; re-thread.
Uneven stitchesTension issuesAdjust upper and bobbin tension; re-thread.
No powerPower connectionCheck power cord; ensure pedal connected; check outlet.

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

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