Featherweight Sewing Machine Repair Manual

The Featherweight Sewing Machine is a classic portable sewing machine known for its reliability and precision. This repair manual covers the Singer 221 and 222 models, providing comprehensive guidance for maintenance, troubleshooting, and repair procedures. Below are key sections covering safety precautions, machine features, disassembly, lubrication, common issues, and restoration techniques.

1. Features at a Glance 2. Safety Precautions 3. Basic Maintenance 4. Specifications 5. Disassembly Guide 6. Common Repairs 7. Lubrication Points 9. Accessories & Parts 10. Care & Cleaning 11. Regulatory Information 12. Troubleshooting

Features at a Glance

Key components: All-metal construction, built-in light, reverse stitch capability, precision stitch control, portable carrying case.

Feature	Description
Motor Type	Direct drive motor with foot pedal control
Stitch Length	Adjustable from 0-4mm
Bobbin System	Class 66 vertical oscillating hook
Needle System	15x1 domestic needles
Weight	Approximately 11 pounds
Power Source	110V AC with two-prong plug
Tension Control	Front-mounted dial with numbered settings
Presser Feet	Standard snap-on system
Lighting	Built-in incandescent bulb
Carrying Case	Original black case with accessories compartment

Safety Precautions

Always unplug machine before performing any repairs or maintenance.

Disconnect power: Unplug from electrical outlet before servicing.
Work on stable surface: Ensure machine is securely positioned.
Use proper tools: Employ correct screwdrivers and pliers to avoid damage.
Handle needles carefully: Always point away from body when installing.
Keep fingers clear: Avoid moving parts during operation.

WARNING! Electrical shock hazard - always disconnect power before internal repairs. Moving parts can cause injury.

Basic Maintenance

Regular maintenance ensures optimal performance and longevity.

Cleaning: Remove lint and dust from bobbin area and feed dogs weekly.
Oil regularly: Apply sewing machine oil to designated points every 8-10 hours of use.
Needle replacement: Change needles after every project or 8 hours of sewing.
Belt inspection: Check motor belt for wear and proper tension monthly.
Electrical check: Inspect power cord and pedal for damage periodically.

CAUTION! Use only sewing machine oil - never use household oils or lubricants.

Specifications

Model Numbers: Singer 221, Singer 222
Manufacture Years: 1933-1969
Stitch Type: Straight stitch only
Speed: Up to 1,100 stitches per minute
Thread: Accepts all standard sewing threads
Bobbin Capacity: Standard class 66 metal bobbins
Presser Foot Lift: Lever-operated, adjustable height
Dimensions: 7.5" height x 13.5" depth x 6.25" width
Original Price: $125 in 1950s
Current Value: $300-$800 depending on condition

Disassembly Guide

Step-by-step instructions for accessing internal components.

Basic Disassembly: Remove face plate, motor cover, and light cover screws. Carefully lift covers to access internal mechanisms.

Motor Removal: Disconnect wires, remove mounting screws, lift motor assembly. Bobbin Case: Remove slide plate, lift out bobbin case and shuttle. Stitch Length Mechanism: Remove control knob, access cam and lever assembly. Tension Assembly: Remove discs and spring for cleaning.

Common Repairs

Most frequent issues and their solutions.

Timing adjustment: Realign needle bar and hook timing.
Tension problems: Clean and adjust tension discs and spring.
Motor issues: Replace brushes or entire motor if worn.
Light replacement: Install new incandescent bulb.
Belt replacement: Install new rubber drive belt.

Tip: Take photos during disassembly to ensure proper reassembly.

Lubrication Points

Essential oiling locations for smooth operation.

Hook race: One drop in shuttle area
Needle bar: Oil where bar enters bushing
Presser bar: Light oil on bar surface
Take-up lever: Oil pivot point
Bobbin winder: Oil friction wheel and shaft
Motor bearings: One drop each end if accessible
Handwheel: Oil shaft behind wheel
Feed dog mechanism: Oil moving parts under throat plate

WARNING! Over-oiling can attract lint and cause gumming. Wipe excess oil after application.

Accessories & Parts

Original accessories and replacement part sources.

Care & Cleaning

Proper cleaning techniques to maintain machine condition.

Use soft brush for lint removal, mild detergent for exterior cleaning, compressed air for hard-to-reach areas. Store in dry environment away from moisture.

CAUTION! Never submerge machine in water. Avoid harsh chemicals that may damage finish.

Regulatory Information

UL listed electrical components. Manufactured to meet 1950s safety standards. Original patents expired. Replacement parts available from authorized dealers and specialty suppliers. For support, contact vintage sewing machine specialists or online Featherweight communities.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Machine won't start	Power connection/motor	Check plug and outlet; inspect motor brushes; test foot pedal
Poor stitch quality	Timing/tension/needle	Check hook timing; adjust tension; replace needle
Thread breaking	Tension/burrs/thread	Reduce tension; check for burrs on needle plate; use quality thread
Machine runs slow	Belt/motor/lubrication	Adjust belt tension; check motor brushes; oil machine
Noise during operation	Lack of oil/debris	Clean and oil machine; remove lint and thread fragments

Reset: Complete disassembly and cleaning if persistent issues occur.

Service: Consult vintage sewing machine specialists for complex repairs.