The Husqvarna Sewing Machine 19 Special is a classic mechanical sewing machine known for its durability and precision. This repair manual focuses specifically on bobbin system maintenance, troubleshooting, and repair procedures. The model features a front-loading bobbin system, standard bobbin case, and mechanical tension controls. Below are comprehensive sections covering bobbin system components, disassembly, cleaning, adjustment, and troubleshooting.
The Husqvarna 19 Special features a front-loading rotary hook bobbin system with mechanical tension control. Key components include bobbin case, bobbin hook, tension spring, and feed dog mechanism.
| Component | Description |
|---|---|
| Bobbin Case | Front-loading metal case with tension spring |
| Bobbin Hook | Rotary hook mechanism for stitch formation |
| Tension Spring | Adjustable spring for bobbin thread tension |
| Bobbin Winder | Built-in bobbin winding mechanism |
| Feed Dogs | Fabric feeding mechanism synchronized with bobbin |
| Needle Plate | Removable plate with bobbin access |
| Tension Screw | Small screw for fine-tuning bobbin tension |
| Bobbin Case Latch | Spring-loaded latch for securing bobbin case |
Essential tools for bobbin system repair and maintenance.
WARNING! Use proper tools to avoid damaging delicate bobbin mechanism components.
Step-by-step procedure for removing bobbin case safely.
CAUTION! Handle bobbin case carefully to avoid bending tension spring.
Proper cleaning procedures for bobbin system components.
Regular Maintenance: Clean bobbin area after every 8 hours of use. Remove lint, dust, and thread fragments using lint brush and compressed air. Apply one drop of oil to bobbin hook race after cleaning.
Deep Cleaning: For thorough cleaning, disassemble bobbin system completely. Clean all metal parts with sewing machine cleaner. Wipe dry with lint-free cloth before reassembly.
Bobbin tension adjustment procedures for optimal stitch quality.
Tip: Proper tension creates even stitches on both sides of fabric.
Frequent bobbin-related problems and their characteristics.
| Issue | Symptoms | Possible Causes |
|---|---|---|
| Thread Bunching | Tangled thread under fabric | Incorrect threading, tension imbalance |
| Skip Stitches | Missing stitches in seam | Timing issues, damaged hook |
| Tension Problems | Loops on top or bottom | Spring wear, incorrect adjustment |
| Bobbin Jams | Machine stops, thread breaks | Lint buildup, damaged case |
| Uneven Winding | Poor bobbin fill | Winder mechanism issues |
Proper reassembly sequence for bobbin system.
WARNING! Ensure all components move freely before powering machine.
Post-repair testing procedures to ensure proper function.
Guidelines for replacing worn or damaged bobbin system components.
Common replacement parts: bobbin case assembly, tension spring, bobbin hook, feed dogs, needle plate. Use genuine Husqvarna parts for optimal performance. When replacing bobbin hook, check timing alignment with needle movement.
CAUTION! Always replace worn parts rather than attempting repair of damaged components.
| Problem | Possible Cause | Corrective Action |
|---|---|---|
| Bobbin thread breaks | Sharp edges, tension too tight | Inspect for burrs, adjust tension, replace case if damaged |
| Uneven bobbin winding | Winder mechanism, thread guide | Clean winder area, check thread path, adjust winder tension |
| Bobbin doesn't turn | Jammed mechanism, lint | Clean thoroughly, check for obstructions, lubricate |
| Thread loops on bottom | Upper tension too loose | Increase upper tension, check bobbin threading |
| Machine jams when starting | Timing issues, thread caught | Check hook timing, remove tangled thread, clean race |
Professional Service: For complex timing issues or persistent problems, consult authorized Husqvarna service center.
Support: Contact Husqvarna customer service for genuine parts and technical assistance.