1928 Singer Sewing Machine Manual

The 1928 Singer Sewing Machine is a classic treadle-operated model featuring cast iron construction, ornate decals, and reliable mechanical operation. This manual covers the model 66 with vibrating shuttle bobbin system, tension controls, stitch length adjustment, reverse stitching capability, and detailed instructions for threading, bobbin winding, maintenance, and troubleshooting of this vintage sewing machine.

Features at a Glance

Key components: Cast iron body with ornate decals, treadle mechanism, vibrating shuttle bobbin system, tension discs, presser foot, needle bar, and hand wheel.

Machine Setup

Unpack and inspect contents. Place on stable surface or in treadle cabinet.

1. Assemble treadle: Install pitman rod connecting treadle to machine wheel.
2. Level machine: Ensure machine sits level in cabinet for smooth operation.
3. Install needle: Insert needle with flat side toward back, tighten screw.
4. Oil points: Apply sewing machine oil to all designated oil points.
5. Test operation: Turn hand wheel to ensure smooth movement.

WARNING! Machine is heavy cast iron; lift with care using proper technique. Ensure cabinet is stable before operation.

First-Time Operation

Prepare machine for sewing; follow step-by-step threading.

1. Thread upper path: Follow numbered threading guide from spool to needle.
2. Wind bobbin: Place empty bobbin on winder, thread through tension.
3. Load bobbin: Insert bobbin in shuttle, pull thread through slot.
4. Set tension: Begin with tension setting 4 for medium weight fabric.
5. Test stitches: Use scrap fabric to test stitch formation.

CAUTION! Keep fingers away from moving needle. Always disengage bobbin winder before sewing.

Specifications

• Model: Singer 66 (1928)
• Serial Number Range: G series (1928-1929)
• Stitch Length: Adjustable 6-20 stitches per inch
• Bobbin System: Vibrating shuttle with long bobbin
• Needle Type: 15x1 standard domestic needles
• Thread: Standard cotton or polyester thread
• Presser Feet: Standard foot included; attachments available
• Weight: Approximately 30 pounds (machine only)
• Finish: Black enamel with gold decals
• Power: Treadle operation (hand wheel for manual control)

Controls and Adjustments

Access controls via front dials and levers. Tension Control: Rotate dial (1-9) for thread tension. Stitch Length: Turn lever for 6-20 stitches per inch. Presser Foot Pressure: Adjust screw above foot for different fabrics.

Additional Controls: Bobbin winder engagement lever, reverse stitch lever, presser foot lifter, hand wheel with clutch for bobbin winding.

Tension: Lower numbers for lighter tension, higher for heavier. Stitch Length: Shorter for fine fabrics, longer for basting. Needle Position: Center position standard; some models allow slight adjustment.

Threading Instructions

Upper Threading: Follow numbered path from spool pin to needle.

1. Place thread spool on spool pin.
2. Pull thread through first thread guide on face plate.
3. Pass between tension discs from right to left.
4. Thread through take-up lever from right to left.
5. Pass through lower thread guide above needle.
6. Thread needle from front to back.

Tip: Always raise presser foot when threading to open tension discs.

Bobbin Winding & Loading

Uses long bobbins for vibrating shuttle system.

1. Engage bobbin winder: Push hand wheel inward to engage winder.
2. Place empty bobbin: Slide bobbin onto winder spindle.
3. Thread winder: Pass thread from spool through bobbin winder tension.
4. Start winding: Hold thread end, begin treadling slowly.
5. Stop when full: Bobbin should be evenly wound, not overfilled.
6. Load bobbin: Place in shuttle with thread coming off counterclockwise.
7. Pull through slot: Draw thread through shuttle race tension spring.

WARNING! Always disengage bobbin winder before sewing. Overfilled bobbins can cause jams.

Stitch Settings

Straight stitch only with adjustable length and tension.

1. Standard Stitching: Set stitch length 10-12 for general sewing.
2. Basting: Set stitch length 6-8 for temporary stitches.
3. Fine Fabrics: Set stitch length 15-20 for delicate materials.
4. Heavy Fabrics: Set stitch length 8-10 with increased tension.
5. Reverse Stitching: Engage reverse lever to backstitch at ends.

Note: This model sews only straight stitch. Zigzag requires attachment.

Maintenance & Oil Points

Regular oiling essential for smooth operation. Use only sewing machine oil.

Oil Points: Needle bar, presser bar, take-up lever, bobbin shuttle race, tension assembly, hand wheel bearing, treadle mechanism joints.

CAUTION! Use only high-quality sewing machine oil. Wipe excess oil to prevent staining fabric. Clean lint buildup after each use.

Historical Information

The Singer Model 66 was introduced in 1900 and produced until the 1950s. The 1928 version features the "Red Eye" decals and improved tension system. Over 1 million Model 66 machines were produced, making it one of Singer's most successful models. Serial numbers beginning with G indicate 1928-1929 production. These machines were known for their reliability and smooth operation, many still functioning perfectly today with proper maintenance.

Troubleshooting

Professional Service: For major repairs, consult vintage sewing machine specialist.

Parts Source: Vintage sewing machine parts suppliers or online auctions.