The Singer Model 66 is a classic treadle sewing machine manufactured from 1905 to 1955, featuring a vibrating shuttle mechanism, reverse stitching capability, and ornate decals. This manual covers operation, maintenance, threading, troubleshooting, and care for this vintage machine. Below are key sections for setup, operation, maintenance, and troubleshooting.
Key components: Cast iron body, treadle mechanism, vibrating shuttle, tension dial, stitch length regulator, reverse lever, presser foot, bobbin winder.
| Feature | Description |
|---|---|
| Treadle mechanism | Foot-powered operation with iron stand |
| Vibrating shuttle | Classic bobbin system with metal shuttle |
| Stitch length regulator | Adjustable from 6-20 stitches per inch |
| Reverse stitching | Lever for back-tacking |
| Tension dial | Upper thread tension control |
| Bobbin winder | Built-in spool winding mechanism |
| Presser foot | Standard low-shank foot attachment |
| Decorative decals | Ornate gold and black designs |
| Needle clamp | Standard 15x1 needle system |
| Thread guides | Multiple guides for proper threading |
Unpack and inspect all components. Place on stable surface.
WARNING! Machine is heavy; lift with care to avoid injury. Ensure all bolts are tightened securely.
Power machine by operating treadle with foot motion.
CAUTION! Keep fingers away from needle area while operating. Always raise needle when not sewing.
Main controls located on machine head and treadle mechanism.
Machine Head: Stitch length regulator, tension dial, reverse lever, presser foot lever, bobbin winder, handwheel.
Stitch Length: Turn regulator for 6-20 stitches per inch. Tension: Adjust dial for different fabric types. Reverse: Engage lever for back-tacking. Presser Foot: Raise/lower with lever. Bobbin Winder: Engage/disengage for winding. Handwheel: Manual operation and bobbin winding.
Proper threading is essential for smooth operation.
Tip: Always thread machine with presser foot raised and needle in highest position.
Adjust settings for different fabrics and sewing tasks.
WARNING! Always test stitch settings on scrap fabric before sewing project.
Regular maintenance ensures smooth operation and longevity.
Lubrication Points: All moving joints, shuttle race, tension mechanism, bobbin winder. Use only high-quality sewing machine oil. Clean lint and dust after each use. Check belt tension regularly. Inspect needle for damage before each use.
Keep machine clean and protected when not in use.
Use soft brush to remove lint from shuttle area and feed dogs. Wipe exterior with soft, dry cloth. Cover machine when not in use to prevent dust accumulation. Store in dry environment away from moisture.
CAUTION! Do not use water or cleaning solvents on machine. Never oil with household oils.
Singer Manufacturing Company, established 1851. Model 66 manufactured from 1905-1955. This manual covers operation of vintage sewing machines. For historical information, contact Singer Company archives. Replacement parts may be available through specialty suppliers.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| Thread breaking | Incorrect tension/threading | Re-thread machine; adjust tension; check for burrs on needle. |
| Skip stitches | Bent needle/wrong needle | Replace needle; ensure correct needle type; check threading. |
| Machine hard to treadle | Needs oiling/dirt buildup | Clean and oil all moving parts; check for obstructions. |
| Uneven stitches | Tension imbalance | Adjust upper and lower tension; re-thread completely. |
| Bobbin thread not catching | Timing issue/shuttle problem | Check shuttle placement; ensure proper bobbin winding. |
Professional Service: For timing adjustments or major repairs, consult vintage sewing machine specialist.
Resources: Singer historical societies and vintage sewing machine forums for additional support.