1939 Singer Sewing Machine Manual

The 1939 Singer Sewing Machine is a classic vintage model featuring cast iron construction, oscillating shuttle mechanism, hand-crank operation, ornate decals, and black finish. This manual covers operation, maintenance, threading, troubleshooting, and care for this historic sewing machine. Below are key sections for features, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Cast iron body, oscillating shuttle, tension dial, stitch length regulator, presser foot, hand wheel, bobbin winder, thread guides.

Setup and Installation

Unpack and inspect machine. Place on stable surface or sewing table.

1. Surface preparation: Ensure flat, stable surface for operation.
2. Oil points: Lightly oil all designated points before first use.
3. Needle installation: Insert needle with flat side toward back.
4. Thread setup: Follow threading diagram for upper and lower threads.

WARNING! Machine is heavy; lift with care using both hands. Keep fingers clear of needle during operation.

Threading Instructions

Proper threading is essential for smooth operation.

1. Upper threading: From spool pin through tension discs to needle eye.
2. Bobbin winding: Place empty bobbin on winder, engage mechanism.
3. Lower threading: Insert bobbin into shuttle, pull thread through slot.
4. Thread tension: Adjust dial for balanced stitches.

CAUTION! Always raise needle to highest position before threading.

Specifications

• Model Year: 1939
• Construction: Cast iron with black finish
• Power: Hand-crank operation
• Stitch Type: Straight stitch only
• Needle System: 15x1 household needles
• Bobbin Type: Class 66 metal bobbins
• Shuttle: Oscillating shuttle mechanism
• Weight: Approximately 30 pounds
• Dimensions: 14" x 7" x 12" (LxWxH)

Controls and Operation

Basic operation controls: Hand wheel, stitch length regulator, tension dial, presser foot lever.

Operation: Turn hand wheel toward you to sew. Adjust stitch length with regulator knob. Raise/lower presser foot with lever.

Stitch Length: 0-4mm adjustment. Tension: 0-9 dial settings. Presser Foot Pressure: Fixed pressure suitable for most fabrics. Bobbin Winder: Engage by pushing bobbin winder against hand wheel.

Stitch Adjustment

Adjust stitch length and tension for different fabrics.

1. Stitch length: Turn regulator clockwise for shorter stitches.
2. Thread tension: Increase tension for heavier fabrics.
3. Test stitches: Always test on scrap fabric first.
4. Balanced stitches: Adjust until top and bottom threads lock in middle.

Tip: Use longer stitches for basting, shorter for fine fabrics.

Maintenance and Oil Guide

Regular oiling maintains smooth operation.

1. Oil points: Hand wheel bearing, needle bar, presser bar, shuttle race.
2. Frequency: Oil after every 8 hours of use.
3. Oil type: Use only sewing machine oil.
4. Procedure: Apply 1-2 drops to each oil point, wipe excess.

WARNING! Do not use household oils; they can damage machine.

Needle Replacement

Replace needle regularly for best results.

1. Loosen needle clamp screw.
2. Remove old needle, insert new one with flat side toward back.
3. Tighten clamp screw securely.
4. Test on scrap fabric.

CAUTION! Always use correct 15x1 needles; wrong needles can damage machine.

Care & Cleaning

Regular cleaning prevents lint buildup.

Remove lint from shuttle area and feed dogs. Wipe exterior with soft cloth. Store covered when not in use.

CAUTION! Do not use water or cleaning solvents on machine.

Historical Information

The 1939 Singer sewing machine represents pre-war manufacturing quality. Singer Manufacturing Company founded in 1851. This model features classic decals and all-metal construction. Serial numbers can be dated through Singer records. Many machines from this era remain in working condition with proper care.

Troubleshooting

Service: For vintage Singer service, contact authorized Singer service centers.

Parts: Original parts may be available through vintage sewing machine suppliers.