STIHL Chainsaw Manuals Online

Welcome to the official online resource for STIHL chainsaw user manuals, safety instructions, and technical documentation. This portal provides comprehensive guides for various STIHL chainsaw models, covering operation, maintenance, troubleshooting, and essential safety procedures. Below are key sections to help you find the correct manual, understand your equipment, and operate it safely and efficiently.

Manual Categories

STIHL manuals are organized by product series and type. Key document types: Owner's Manual (Operation & Safety), Instruction Manual (Detailed Procedures), Parts Catalog, and Workshop Manual.

Safety First

Operating a chainsaw involves serious risks. Always read and understand the manual before use.

1. Personal Protective Equipment (PPE): Always wear chainsaw chaps, safety helmet with face shield and hearing protection, gloves, and steel-toe boots.
2. Pre-Operation Check: Inspect chain tension, sharpness, lubrication, and all controls before each use.
3. Safe Starting: Place saw on firm ground, engage chain brake, use proper starting technique.
4. Operation Zone: Maintain a 15-foot safety zone from others. Be aware of kickback zone.
5. Fuel Safety: Use only approved fuel/oil mix. Refuel in well-ventilated area, away from ignition sources.

WARNING! Failure to follow safety instructions can result in serious injury or death. Never operate a chainsaw while tired, under the influence, or in unsafe conditions.

Finding Your Model

Locate your model number to find the correct manual. The model number is stamped on the rating plate, typically on the rear of the saw body or on the crankcase.

1. Look for the rating plate on your STIHL chainsaw.
2. Identify the model number (e.g., MS 250, MS 362 C-BE).
3. Use the search function on this page or browse by series above.
4. If the exact model isn't listed, a manual for a similar model in the same series may be applicable for basic operations.

Tip: Have your serial number ready when contacting technical support.

Operation Guide

• Starting Procedure: Master Control Lever in cold start position, decompression valve (if equipped), pull starter cord firmly.
• Basic Cutting: Use full throttle when cutting. Let the chain do the work. Avoid contact with the ground.
• Kickback Awareness: Understand the kickback danger zone (upper quadrant of bar tip). Use a reduced-kickback chain and low-kickback bar.
• Chain Brake: Test chain brake function daily. Know how to engage it manually (forward inertia activation).
• Stopping: Move Master Control Lever to STOP position.

Maintenance Schedule

Regular maintenance ensures performance, longevity, and safety.

Daily/Before Use: Check chain tension and sharpness, check chain lubrication, clean air intake, inspect for loose parts.
Weekly/After 5 Hours: Clean spark arrestor screen (if equipped), check fuel filter, clean exterior.
Monthly/After 20 Hours: Clean/replace air filter, check spark plug, inspect anti-vibration elements.
Seasonal/Annual: Replace fuel filter, clean/replace spark plug, check clutch and sprocket, professional servicing recommended.

Troubleshooting Common Issues

If your chainsaw won't start, runs poorly, or has other problems, consult this guide.

1. Engine won't start: Check fuel (mix & quality), spark plug, air filter, ignition switch position, decompression valve, and starting procedure.
2. Engine starts but dies: Check fuel tank vent, carburetor adjustment, fuel filter, and spark arrestor screen.
3. Poor cutting performance: Dull chain, improper chain tension, insufficient chain lubrication, worn drive sprocket.
4. Excessive vibration: Loose parts, damaged anti-vibration mounts, unbalanced cutting attachment.
5. Chain won't stop rotating: Faulty chain brake, clutch issues, idle speed set too high.

CAUTION! Do not attempt complex repairs unless you are qualified. Contact an authorized STIHL servicing dealer.

Parts & Assembly

Genuine STIHL parts ensure optimal fit and performance. Use the parts catalog for your specific model.

1. Refer to the exploded diagram in the parts catalog to identify the part number.
2. Order parts through an authorized STIHL dealer.
3. For assembly (e.g., new chain/bar), follow the step-by-step instructions in the owner's manual.
4. Common replacement parts: guide bars, chains, drive sprockets, air filters, spark plugs, fuel filters.

Tip: Always replace the chain and bar as a matched set when worn.

Fuel & Lubrication

Using the correct fuel and oil is critical for engine life.

• Fuel Mix: Use high-quality 89+ octane unleaded gasoline mixed with a premium 2-cycle engine oil at a 50:1 ratio (for most modern STIHL engines). Always check your manual for the exact ratio.
• Chain Oil: Use STIHL branded chain and bar oil or a high-quality substitute with good adhesive properties. Check oil level before each use.
• Storage: For long-term storage, either run the carburetor dry or add fuel stabilizer to a full tank.

WARNING! Never use automotive motor oil, old fuel mix (>30 days), or ethanol-blended fuel above 10% ethanol (E10).

Chain Sharpening

A sharp chain is safer and more efficient. Sharpen regularly.

1. Secure the bar in a vise.
2. Use the correct round file size for your chain pitch (e.g., 5/32" for .325" pitch).
3. Maintain the specified filing angle (typically 30°). Use a filing guide for consistency.
4. File each cutter from the inside out with consistent pressure and strokes.
5. Check and adjust depth gauges (rakers) with a flat file and depth gauge tool.

Note: Professional sharpening services are available at STIHL dealers.

Warranty Information

STIHL products are backed by a limited warranty. Proof of purchase from an authorized STIHL dealer is required.

Standard Warranty: Varies by product and region. Typically 1 year for homeowner products and 90 days for professional/commercial use on certain components. Extended Warranty: Available for purchase on many models (e.g., STIHL Easy Start™). What's Covered: Defects in materials and workmanship under normal use. What's Not Covered: Damage from misuse, neglect, improper maintenance, or use of non-genuine parts. For full terms, see the warranty statement included with your product or contact your dealer.

Technical Support

STIHL USA Website: www.stihlusa.com
Dealer Locator: Available on the website.
Important: For immediate safety concerns, stop using the equipment and consult a professional.