Singer Sewing Machine Model 99 Manual

The Singer Model 99 is a classic 3/4 size sewing machine manufactured from 1920s to 1950s, featuring a straight stitch only mechanism, hand crank or electric motor options, oscillating hook bobbin system, and reverse stitching capability. This manual covers operation, maintenance, troubleshooting, and care for this vintage sewing machine. Below are key sections for setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Cast iron body, tension dial, stitch length lever, bobbin winder, presser foot, needle clamp, hand wheel, and reverse stitch lever.

Unpacking and Setup

Unpack machine carefully and inspect for damage during shipping.

1. Place machine on stable table or sewing cabinet at comfortable height.
2. If electric model: Connect motor to machine and plug into appropriate outlet.
3. Install needle: Loosen needle clamp screw, insert needle with flat side to back, tighten screw.
4. Attach presser foot: Lower presser bar, snap foot into place.

WARNING! Machine is heavy; lift with proper technique. Ensure stable surface to prevent tipping.

First-Time Operation

Before first use, oil all designated points and practice threading.

1. Thread upper path: Follow numbered guides from spool to needle.
2. Wind bobbin: Place empty bobbin on winder, thread through tension, engage winder.
3. Insert bobbin: Drop bobbin into case with thread unwinding counterclockwise.
4. Test stitch: Use scrap fabric to check tension and stitch quality.
5. Adjust tension: Start at setting 4, adjust based on fabric thickness.

CAUTION! Keep fingers away from moving needle. Always turn hand wheel toward you.

Specifications

• Model: Singer 99
• Manufacture Years: 1920s-1950s
• Stitch Type: Straight stitch only
• Stitch Length: 0-4mm adjustable
• Bobbin Type: Class 66 metal bobbins
• Needle Type: 15x1 domestic needles
• Presser Foot Lift: Manual lever
• Weight: Approximately 25 lbs (11.3 kg)
• Dimensions: 14" x 6" x 12" (machine only)
• Motor: Optional external motor (for electric models)

Controls and Settings

Main controls located on machine body: Hand wheel, stitch length lever, tension dial, reverse lever, presser foot lever.

Stitch Length: Lever on front right - push down for shorter stitches, up for longer.

Tension: Dial on front - higher numbers for tighter tension.

Reverse: Lever below stitch length - hold down for reverse stitching.

Presser Foot: Lever on back - raise and lower to change fabric.

Bobbin Winder: Right side - engage to wind bobbin, disengage for sewing.

Threading and Bobbin

Proper threading is essential for good stitch quality.

1. Upper threading: Spool pin → thread guide → tension discs → take-up lever → needle.
2. Bobbin winding: Place empty bobbin on winder, thread through guide, engage winder.
3. Bobbin insertion: Open slide plate, drop bobbin in case with thread unwinding counterclockwise.
4. Bring up bobbin thread: Hold upper thread, turn hand wheel to catch bobbin thread.

Tip: Always pull threads to back under presser foot before starting to sew.

Basic Sewing Operations

Master basic operations before attempting complex projects.

1. Start sewing: Lower presser foot, turn hand wheel to start stitch.
2. Guide fabric: Use both hands to guide fabric evenly through machine.
3. Reverse stitching: Hold reverse lever to secure seam beginnings and ends.
3. Adjust speed: Electric models - use foot pedal; hand crank - turn steadily.
4. Finish seam: Raise needle to highest position, lift presser foot, remove fabric.
5. Cut threads: Use thread cutter on machine or scissors.

WARNING! Never pull fabric through machine - let feed dogs move it naturally.

Maintenance and Oil Points

Regular oiling prevents wear and ensures smooth operation.

Oil points: Needle bar, presser bar, bobbin area, tension assembly, hand wheel shaft.

Oil Type: Use only sewing machine oil.

Frequency: Oil after every 8 hours of use or monthly.

Procedure: Place drop of oil at each point, run machine briefly to distribute oil.

Care & Cleaning

Regular cleaning prevents lint buildup and thread jams.

1. Unplug electric models before cleaning.
2. Remove needle and presser foot.
3. Brush out lint from bobbin area and feed dogs.
4. Wipe exterior with soft, dry cloth.
5. Clean tension discs with folded fabric strip.

CAUTION! Never use compressed air - it forces lint deeper into mechanism.

Regulatory Information

Singer Manufacturing Company established 1851. Model 99 manufactured under various patents throughout production. For vintage machine support, contact Singer customer service or authorized vintage machine dealers. This manual covers original operation - modern accessories may require adaptation.

Troubleshooting

Professional Service: Contact authorized Singer service center for major repairs.

Parts: Original parts may require sourcing from vintage suppliers.