The Singer Model 221, also known as the "Featherweight," is a classic portable straight-stitch sewing machine renowned for its reliability, precision, and lightweight design. Manufactured primarily in the mid-20th century, it features a compact aluminum body, a powerful motor, and a simple yet effective mechanism ideal for a wide range of sewing projects. Below are key sections covering its features, setup, operation, maintenance, and troubleshooting.
Key components: Lightweight aluminum body, built-in motor, reverse stitch lever, stitch length regulator, tension dial, and carrying case.
| Feature | Description |
|---|---|
| Stitch Type | Straight stitch only |
| Stitch Length | Adjustable via dial (0-4 mm) |
| Reverse Stitch | Lever for back-tacking |
| Tension Control | Top thread tension dial |
| Bobbin System | Class 66 metal bobbins, front-loading |
| Presser Foot | Standard snap-on foot; additional feet available |
| Light | Built-in bulb for work area illumination |
| Motor | Built-in, controlled by foot pedal |
| Carrying Case | Original hinged case for storage and transport |
| Weight | Approximately 11 lbs (5 kg) |
Remove machine from case and inspect all parts.
WARNING! Keep fingers away from needle area during setup. Ensure power is off when connecting components.
Power on machine; follow threading guide.
CAUTION! Always turn handwheel toward you (counter-clockwise) to avoid timing issues.
Access controls on machine body. Stitch Length Dial: Turn to set stitch length (higher number = longer stitch). Tension Dial: Adjust for balanced stitches (higher number = tighter tension). Reverse Lever: Hold down for back-tacking. Presser Foot Lever: Raises and lowers foot. Handwheel: Manual control; always turn toward user.
Foot Pedal: Controls speed; press lightly for slow, firmly for fast.
Adjustments: Tension (3-5 for medium-weight fabric), stitch length (2.5 for general sewing), needle position (centered).
Upper Threading: Follow guide numbers: spool pin, thread guide, tension discs, take-up lever, needle. Bobbin Winding: Place spool on pin, thread through guide, wrap around bobbin, engage clutch, press pedal. Bobbin Insertion: Open slide plate, drop in bobbin (thread clockwise), pull thread through slot.
Tip: Use quality thread to avoid lint and breakage.
Straight stitch only; adjust length for different fabrics.
WARNING! Do not force fabric; let feed dogs move it. Always lower presser foot before sewing.
Unplug before maintenance. Oil regularly with Singer sewing machine oil.
Daily: Brush out lint from bobbin area and feed dogs.
Monthly: Oil points: hinge joints, bobbin case, needle bar (1 drop each).
CAUTION! Use oil sparingly; wipe excess. Never use household oils.
Unplug when not in use, changing needle, or cleaning. Keep fingers away from needle. Do not sew over pins. Use proper lighting. Store in dry area.
Standard accessories: Presser foot, bobbin (Class 66), needles (15x1), screwdriver, lint brush, oiler. Optional: Zipper foot, buttonhole foot, seam guide, carrying case. Replacement parts available through authorized Singer dealers.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| Thread breaking | Incorrect threading/tension | Re-thread top and bobbin; reduce tension; check for burrs on needle. |
| Skipped stitches | Wrong needle/damaged needle | Replace needle; ensure correct type (15x1); re-thread. |
| Uneven stitches | Tension imbalance | Adjust tension dial; rewind bobbin evenly. |
| Machine jams | Lint buildup/thread tangle | Clean bobbin area; remove fabric, cut threads, re-thread. |
| No power | Plug/pedal connection | Check power cord; ensure pedal is plugged into machine. |
| Noisy operation | Needs oiling/lint | Oil moving parts; clean lint; check for loose screws. |
Service: For repairs, contact authorized Singer service center.
Support: Visit www.singer.com or consult your local dealer.