Instruction Manual for Singer Sewing Machine 99K

The Singer 99K is a classic portable sewing machine featuring a 3/4 size design, straight stitch capability, built-in bobbin winder, reverse stitching function, adjustable stitch length, drop feed for darning and free-motion sewing, and a powerful motor. This manual covers safety guidelines, machine features, setup instructions, operation procedures, maintenance, and troubleshooting for optimal performance.

Features at a Glance

Key components: 3/4 size portable body, built-in bobbin winder, reverse stitch lever, stitch length dial, drop feed mechanism, tension control, and carrying case.

Installation & Setup

Unpack machine and inspect all components. Place on stable surface at comfortable working height.

1. Remove machine from carrying case and place on flat surface.
2. Attach foot control: Plug into machine's motor connection port.
3. Connect power: Plug machine into standard 120V AC outlet.
4. Install needle: Loosen needle clamp screw, insert needle with flat side to back, tighten screw.
5. Oil machine: Apply 1-2 drops of sewing machine oil to designated points if machine is new or hasn't been used recently.

WARNING! Always unplug machine when not in use or when performing maintenance. Keep fingers away from needle during operation.

First-Time Operation

Follow these steps for initial setup and testing.

1. Thread upper thread: Follow threading diagram from spool pin through tension discs to needle.
2. Wind bobbin: Place empty bobbin on winder, thread through tension spring, engage winder.
3. Insert bobbin: Place wound bobbin in bobbin case with thread pulling counterclockwise.
4. Pull up bobbin thread: Hold upper thread, turn hand wheel toward you to catch bobbin thread.
5. Test stitch: Place fabric under presser foot, lower foot, and sew test seam.

CAUTION! Always start with scrap fabric to test tension and stitch quality before sewing your project.

Specifications

• Machine Type: 3/4 Size Portable Sewing Machine
• Stitch Capability: Straight stitch only
• Stitch Length: 0-4mm adjustable
• Maximum Speed: Up to 1,100 stitches per minute
• Needle System: 15x1 (HAx1) household needles
• Bobbin Type: Class 66 metal bobbins
• Presser Foot Lift: Standard height with lever control
• Power Requirements: 120V AC, 60Hz
• Dimensions: 13" x 6" x 12" (with case)
• Weight: 11 lbs (5 kg) including case

Controls and Settings

Main controls located on right side of machine body.

Stitch Length Dial: Rotate to adjust stitch length (0 for darning, 4 for basting).

Reverse Stitch Lever: Press and hold to sew in reverse for seam reinforcement.

Tension Control Dial: Adjust upper thread tension (higher numbers for tighter tension).

Presser Foot Lever: Raise and lower presser foot.

Hand Wheel: Manual control of needle position - always turn toward you.

Bobbin Winder: Located on top right - disengages needle mechanism when winding bobbin.

Threading the Machine

Proper threading is essential for good stitch quality.

1. Raise presser foot and needle to highest position.
2. Place thread spool on spool pin.
3. Pull thread through first thread guide on top of machine.
4. Draw thread down right channel and into tension discs.
5. Pull thread up left channel and through take-up lever.
6. Thread through remaining guides down to needle.
7. Insert thread through needle eye from front to back.
8. Pull 4-6 inches of thread toward back of machine.

Tip: Always thread machine with presser foot raised to open tension discs.

Basic Sewing Operations

Master these fundamental sewing techniques.

1. Starting a seam: Position fabric under needle, lower presser foot, hold thread tails, begin sewing slowly.
2. Straight stitching: Guide fabric gently, let feed dogs move fabric automatically.
3. Reverse stitching: Press reverse lever at beginning and end of seams to lock stitches.
4. Turning corners: Stop with needle down in fabric, lift presser foot, pivot fabric, lower foot, continue sewing.
5. Finishing seams: Reverse stitch, raise needle, lift presser foot, pull fabric to back, trim threads.
6. Darning/free-motion: Drop feed dogs, use darning foot, move fabric manually in any direction.

WARNING! Never pull fabric through machine - let feed dogs advance fabric naturally to avoid needle breakage.

Maintenance & Cleaning

Regular maintenance ensures optimal performance and longevity.

1. Daily: Brush out lint from bobbin area and feed dogs.
2. Weekly: Oil machine according to diagram with sewing machine oil.
3. Monthly: Remove needle plate and clean underneath.
4. As needed: Replace needle after 8-10 hours of sewing or if damaged.
5. Storage: Cover machine when not in use to prevent dust accumulation.

CAUTION! Use only sewing machine oil - never use household oils which can damage internal mechanisms.

Accessories Included

Standard accessories provided with Singer 99K.

Safety Information

Important safety precautions for machine operation.

• Always disconnect power when changing needles, cleaning, or not in use
• Keep fingers away from moving needle and feed dogs
• Do not sew over pins - remove them before they reach the needle
• Use proper lighting to see your work clearly
• Keep long hair tied back and avoid loose clothing
• Do not operate machine if electrical cord is damaged
• Supervise children and beginners closely
• Store machine in dry location away from extreme temperatures

Troubleshooting

Service: For professional repair, contact authorized Singer service center. Visit www.singer.com or call 1-800-4-SINGER for support.