The STIHL Repair Parts Manual provides comprehensive information for servicing, maintaining, and repairing STIHL power equipment including chainsaws, trimmers, blowers, and hedge trimmers. This manual includes detailed parts diagrams, exploded views, part numbers, assembly instructions, torque specifications, and troubleshooting guidance for authorized technicians and experienced users. Below are key sections covering safety, parts identification, ordering, assembly procedures, maintenance schedules, and technical specifications.
Essential safety guidelines for handling STIHL parts and performing repairs.
| Safety Area | Precaution |
|---|---|
| Personal Protective Equipment (PPE) | Always wear safety glasses, gloves, and appropriate clothing when handling parts |
| Work Area | Work in a clean, well-ventilated area free from flammable materials |
| Tool Safety | Use proper tools; ensure tools are in good condition before use |
| Fuel Handling | Drain fuel tank before disassembly; avoid sparks or open flames |
| Sharp Components | Handle cutting chains, blades, and sharp edges with extreme care |
| Electrical Safety | Disconnect spark plug wire on gasoline models; unplug battery on electric models |
| Lifting | Use proper lifting techniques for heavy components like engines |
| Chemical Handling | Wear gloves when handling lubricants, solvents, or cleaning agents |
| Documentation | Refer to specific model manuals for model-specific warnings |
| Post-Repair Check | Verify all fasteners are tightened to specification before operation |
Use exploded-view diagrams to identify components and their relationships.
IMPORTANT! Always use genuine STIHL parts to ensure compatibility, performance, and warranty coverage. Counterfeit parts may cause equipment failure or safety hazards.
Steps to order correct replacement parts.
NOTE: Some parts may be sold in kits or assemblies. Check diagrams for "service assembly" indications.
General procedures for common repairs. Always refer to model-specific instructions.
Chain Saw Cylinder & Piston: Remove muffler, cylinder cover, cylinder bolts. Lift cylinder; replace piston/rings. Apply sealant to base gasket.
Carburetor Replacement: Disconnect fuel lines, throttle linkage, choke linkage. Remove mounting nuts. Reverse for installation.
Starter Assembly: Remove recoil cover, release spring tension, replace rope/pulley. Rewind spring carefully.
Guide Bar & Chain: Loosen bar nuts, remove side cover. Replace bar/chain. Adjust tension after installation.
Critical fastener torque values (general guidelines; verify per model).
Warning: Over-torquing can strip threads; under-torquing can lead to loose components and failure. Use a calibrated torque wrench.
Recommended service intervals for common STIHL equipment.
| Component | Service Interval | Action |
|---|---|---|
| Air Filter | Every 10 operating hours | Clean/replace; more often in dusty conditions |
| Spark Plug | Every 100 hours | Clean/gap; replace if worn |
| Fuel Filter | Every year or 50 hours | Replace in-tank filter |
| Chain Brake | Every time used | Test function; service if not engaging |
| Bar & Chain | Daily | Inspect for wear; sharpen chain; rotate bar |
| Carburetor Adjustment | As needed | Adjust H/L/idle screws for performance |
| Battery Care (Electric) | After each use | Recharge; store in cool, dry place |
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| Engine won't start | No spark, fuel issue, flooded | Check spark plug, fuel lines, carburetor; clear flood |
| Engine runs poorly | Dirty air filter, clogged fuel filter, carb adjustment | Clean/replace filters; adjust carburetor |
| Chain won't turn | Clutch worn, sprocket damaged, chain brake engaged | Inspect clutch/sprocket; disengage brake |
| Excessive vibration | Loose components, unbalanced cutting attachment | Tighten all fasteners; balance bar/chain |
| Oil not feeding to chain | Clogged oil passages, worn oil pump | Clean oil ports; inspect/replace oil pump |
| Electric tool no power | Dead battery, faulty switch, motor issue | Charge/test battery; check switch continuity; test motor |
STIHL Limited Warranty: Genuine STIHL parts are covered by a 90-day warranty from date of purchase when installed by an authorized STIHL servicing dealer. Warranty does not cover damage from misuse, improper installation, or non-genuine parts. Keep original receipt and repair documentation.
WARRANTY VOID IF: Equipment is modified, used commercially without commercial warranty, or repaired with non-OEM parts.
STIHL equipment meets EPA and CARB emissions standards for handheld engines. Contains FCC-compliant electronic components. Proper disposal of used parts, oils, and batteries is required by local regulations. Recycling programs available through STIHL dealers.
For technical assistance, parts ordering, or dealer location:
Emergency: For safety-related incidents, contact STIHL Product Safety at 1-800-467-8445.