The Singer 99 is a classic, portable, straight-stitch sewing machine manufactured in the mid-20th century. Known for its durability and simplicity, it is a hand-crank or electric treadle model ideal for basic sewing, mending, and light garment construction. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.
Key components: Cast-iron body, straight stitch mechanism, tension dial, stitch length lever, bobbin winder, hand wheel, and optional motor or treadle drive.
| Feature | Description |
|---|---|
| Stitch Type | Straight stitch only |
| Stitch Length Control | Adjustable via lever (typically 0-4 mm) |
| Tension Control | Upper thread tension dial |
| Bobbin System | Class 66 metal bobbins, front-loading oscillating shuttle |
| Drive Options | Hand-crank, treadle, or optional electric motor |
| Presser Foot | Standard low-shank foot; accepts other low-shank feet |
| Needle | 15x1 (HAx1) system, size 11-18 |
| Weight | Approximately 25 lbs (11.3 kg) |
| Built-in Accessories | Bobbin winder, spool pin, stitch length lever |
| Reverse | Not available; manually turn fabric |
Unpack carefully. Place on a stable, level table or in its original cabinet.
WARNING! Machine is heavy; lift with your legs, not your back. Ensure all fastenings are secure before use.
Prepare the machine for its first stitch.
CAUTION! Keep fingers away from needle when turning hand wheel. Always turn wheel toward you.
Primary controls are on the right side of the machine.
Hand Wheel: Turn toward you to run machine; outer ring disengages bobbin winding.
Stitch Length Lever: Slide to set stitch length; up for shorter, down for longer.
Tension Dial: Turn clockwise to increase upper thread tension (higher number).
Presser Foot Lever: Raises and lowers the presser foot.
Bobbin Winder: Friction wheel on hand wheel; engage to wind bobbin.
Needle Clamp Screw: Holds needle in place.
Correct threading is essential for proper stitch formation.
Tip: Raise presser foot before threading to open tension discs. Lower it before sewing.
For straight stitching on woven fabrics.
WARNING! Never sew over pins. Keep fingers clear of needle path.
Regular oiling is critical for smooth operation.
Use only high-quality sewing machine oil.
CAUTION! Do not over-oil. Keep oil away from belts and motor. Never use household oils.
The Singer 99 was manufactured by The Singer Manufacturing Company. It is a historical mechanical device not subject to modern electrical certifications. Parts may contain nickel or other period materials. For historical reference, serial number can be dated via Singer records. This manual is for informational use; always follow safe sewing practices. For parts or service, consult a vintage sewing machine specialist.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| Thread bunching underneath | Incorrect upper threading or tension | Rethread upper path; ensure presser foot is up when threading; reduce upper tension. |
| Needle breaks | Wrong needle size, bent needle, fabric pulled | Replace needle (flat side to back); do not force fabric; use correct needle for fabric. |
| Machine is stiff or noisy | Lack of oil, lint buildup, old grease | Oil all points; clean lint from shuttle area; consider professional servicing. |
| Skips stitches | Blunt needle, incorrect needle type, threading error | Install new 15x1 needle; ensure needle is fully inserted; rethread. |
| Uneven feed | Lint under feed dogs, presser foot pressure | Clean feed dog area; check for proper foot pressure (often not adjustable on 99). |
| Bobbin does not wind | Winder not engaged, thread not through tension | Push winder against hand wheel; ensure thread passes through bobbin winder tension spring. |
Reset: For persistent issues, completely rethread both upper and bobbin threads with fresh needle.
Service: For professional repair, seek a technician experienced in vintage Singer machines.