The Husqvarna Chainsaw 359 is a professional-grade chainsaw featuring a 59.3cc X-Torq engine, 20-inch bar length, Smart Start system, Air Injection centrifugal air cleaning, LowVib anti-vibration system, and inertia-activated chain brake. This parts manual provides detailed diagrams, part numbers, and ordering information for maintenance and repair. Below are key sections for safety, engine components, cutting equipment, fuel system, ignition system, and troubleshooting.
Key components: X-Torq engine, 20-inch guide bar, 3/8-inch pitch chain, Air Injection system, Smart Start, LowVib, chain brake, side-mounted chain tensioner.
| Feature | Description |
|---|---|
| Engine Type | 59.3cc X-Torq 2-stroke engine |
| Guide Bar Length | 20 inches (50 cm) standard |
| Chain Pitch | 3/8 inch (0.325 inch optional) |
| Air Filtration | Air Injection centrifugal cleaning |
| Starting System | Smart Start for easier pull |
| Vibration Dampening | LowVib anti-vibration system |
| Safety Features | Inertia-activated chain brake |
| Weight (powerhead) | 6.0 kg (13.2 lbs) |
| Fuel Tank Volume | 0.77 liters (0.20 US gallons) |
| Oil Tank Volume | 0.38 liters (0.10 US gallons) |
Always wear protective gear and follow safety procedures.
WARNING! Never operate a chainsaw without proper training and safety equipment. Risk of serious injury or death.
Engine parts include cylinder, piston, crankshaft, carburetor, and muffler.
CAUTION! Use only genuine Husqvarna parts for engine repairs to maintain performance and safety.
Fuel system includes tank, filter, lines, and carburetor. Ignition includes coil, spark plug, and switch.
Fuel Tank: Part #544 01 28-01. Fuel Filter: Part #544 01 29-01. Fuel Lines: Part #544 01 30-01 (set). Carburetor Kit: Includes gaskets and diaphragms, Part #545 07 43-01. Spark Plug: NGK BPMR7A, gap 0.020 inch. Ignition Coil: Part #544 19 62-01. Stop Switch: Part #544 01 31-01.
Air Injection system pre-cleans air before filter.
Tip: Clean pre-filter after each use; replace main filter every 3 months or when dirty.
LowVib system reduces vibration to operator.
WARNING! Inspect dampeners regularly for wear; replace if cracked or hardened to maintain vibration reduction.
Daily: Clean air filter, check chain tension/sharpness, inspect for damage. Weekly: Clean cooling fins, check spark plug, clean chain brake components. Monthly: Replace fuel filter, inspect vibration dampeners, check clutch drum. Annually: Replace spark plug, inspect crankshaft seals, clean carburetor.
Use Husqvarna part numbers when ordering. Contact authorized dealer or visit Husqvarna website.
CAUTION! Use only genuine Husqvarna parts; aftermarket parts may void warranty and compromise safety.
Husqvarna 359 carries a 2-year consumer warranty for defects in materials/workmanship when used for personal use. Commercial use: 90-day warranty. Warranty does not cover wear items (chain, bar, spark plug, filters) or damage from misuse. For warranty claims, contact authorized Husqvarna dealer with proof of purchase.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| Engine won't start | Fuel, spark, compression | Check fuel mix (50:1); clean spark plug; verify compression >100 psi. |
| Engine runs poorly | Air filter, carburetor | Clean/replace air filter; adjust carburetor H/L screws. |
| Chain doesn't turn | Clutch, sprocket, brake | Inspect clutch springs; replace worn sprocket; disengage chain brake. |
| Excessive vibration | Dampeners, balance | Replace worn vibration dampeners; balance cutting equipment. |
| Chain throws oil | Oil pump, passages | Check oil pump function; clean oil passages; adjust flow screw. |
Service: Authorized Husqvarna dealers only. Visit www.husqvarna.com or call 1-800-487-5962.