The Husqvarna 570 is a professional-grade chainsaw designed for demanding forestry and arborist work. This parts manual provides detailed diagrams, part numbers, and ordering information for all components of the Husqvarna 570 chainsaw, including the engine assembly, cutting equipment, fuel system, ignition system, and safety features. Below are key sections for identification, engine parts, cutting attachments, maintenance, and ordering.
Identify your Husqvarna 570 chainsaw using the model and serial number plate located on the rear of the crankcase. Ensure you have the correct parts manual for your specific version.
| Identification Feature | Description |
|---|---|
| Model Number | 570 (may include suffixes like 570BT, 570BTS) |
| Serial Number Location | Stamped on crankcase housing |
| Engine Type | 2-stroke, single cylinder, air-cooled |
| Displacement | 70.7 cc (4.3 cu. in.) |
| Power Output | Approx. 4.8 hp (3.6 kW) |
| Fuel Capacity | 0.95 L (0.25 US gal) |
| Oil Tank Capacity | 0.47 L (0.12 US gal) |
| Recommended Bar Length | 15" to 24" (38 cm to 61 cm) |
| Weight (Powerhead) | Approx. 6.7 kg (14.8 lbs) |
| Ignition System | Electronic (CDI) |
Complete breakdown of the 2-stroke engine components including cylinder, piston, crankshaft, and bearings.
WARNING! Engine disassembly requires specialized tools and knowledge. Incorrect assembly can cause severe damage or injury.
Parts for the guide bar, saw chain, drive sprocket, clutch, and chain brake system.
CAUTION! Always use Husqvarna-approved bar and chain combinations. Mismatched parts increase risk of kickback and chain breakage.
Components for starting and spark generation. Front Panel: STOP switch, ignition coil, spark plug, wiring harness.
Key Parts: Ignition coil (CDI unit), spark plug (NGK BPMR7A or equivalent), stop switch, wiring harness, connectors, flywheel, flywheel key.
Starter: Recoil starter assembly, pulley, spring, rope, handle. On/Off Switch: Stop switch assembly, contact plate, wires. Spark Arrestor: Screen located in muffler (clean/replace regularly).
Air filter system and cooling components to protect engine from debris and overheating.
Tip: Check and clean air filter daily under heavy use to maintain engine performance and life.
Parts related to operator safety and control, including handles, antivibration, and chain brake.
WARNING! Never operate a chainsaw with damaged or missing safety components, especially the chain brake and hand guard.
Recommended part replacement schedule for optimal performance and safety.
| Component | Inspection Interval | Replacement Interval |
|---|---|---|
| Air Filter | Daily/10 hours | When dirty or damaged |
| Spark Plug | 25 hours | 100 hours or as needed |
| Fuel Filter | 50 hours | 100 hours or annually |
| Saw Chain | Before each use | When cutting performance declines |
| Guide Bar | Before each use | When rails are worn or damaged |
| Drive Sprocket | When replacing chain | Every 2-3 chains (rim) or when worn |
| Chain Brake Band | 25 hours | If worn or after activation |
| Antivibration Elements | 100 hours | If hardened or cracked |
Refer to the official Husqvarna 570 parts diagrams for visual identification. Each component has a unique Husqvarna part number.
Diagram Sections: 1. Engine, 2. Fuel System, 3. Ignition System, 4. Cutting Attachment, 5. Handle & Safety, 6. Covers & Miscellaneous.
Example Part Numbers (verify for your specific model):
Husqvarna Genuine Parts are designed specifically for your chainsaw. Use only genuine parts to maintain performance, safety, and warranty coverage.
Ordering: Contact an authorized Husqvarna dealer with your model and serial number and the part number from this manual. Warranty: Husqvarna's limited warranty may be voided by the use of non-genuine parts or improper installation. For support, visit www.husqvarna.com or contact your local Husqvarna dealer.
| Symptom | Possible Part Failure | Corrective Action |
|---|---|---|
| Engine won't start | Spark plug, ignition coil, fuel filter | Check/replace spark plug; test ignition coil; replace fuel filter. |
| Loss of power | Clogged air filter, worn piston/cylinder | Clean/replace air filter; inspect compression; rebuild top end if needed. |
| Chain won't stay tight | Worn bar, damaged tensioner | Inspect bar rails and sprocket nose; replace tensioner parts. |
| Excessive vibration | Failed antivibration mounts, unbalanced clutch | Replace rubber antivibration elements; inspect clutch balance. |
| Oil not feeding to bar | Clogged oil passages, worn oil pump | Clean oil ports and filter; inspect/replace oil pump diaphragm. |
| Chain brake not engaging | Worn brake band, broken spring | Replace brake band and inspect activation springs. |
Safety First: Always disconnect the spark plug before performing any parts replacement or maintenance.
Service: For complex repairs, take your Husqvarna 570 to an authorized service dealer.