The Stihl MS 250 Instruction Manual is a comprehensive guide covering safety, operation, maintenance, and troubleshooting. Available in PDF and multiple languages, it ensures safe and effective use of your chainsaw.
Overview of the Manual
The Stihl MS 250 Instruction Manual is a detailed guide designed to help users understand and operate their chainsaw safely and effectively. Available in multiple languages, including English and Russian, it covers essential topics such as safety precautions, engine operation, maintenance routines, and troubleshooting. The manual also provides technical specifications, chain and bar details, and warranty information. Additionally, it includes pictograms and symbols to enhance clarity. Whether you’re a professional or a homeowner, this manual serves as a vital resource to ensure optimal performance and longevity of your Stihl MS 250 chainsaw.
Importance of Reading the Manual
Reading the Stihl MS 250 Instruction Manual is crucial for ensuring safe and efficient operation. It provides essential information on proper usage, maintenance, and troubleshooting, helping to prevent accidents and prolong the tool’s lifespan. By understanding the manual, users can maximize the chainsaw’s performance and avoid costly repairs. It also highlights safety features like the chain brake and kickback prevention, emphasizing the importance of following guidelines for optimal functionality. The manual is a comprehensive resource that empowers users to handle the chainsaw confidently and responsibly, making it indispensable for both professionals and hobbyists.
Safety Precautions
Always follow guidelines in the Stihl MS 250 Instruction Manual to ensure safe operation. Wear PPE, understand kickback risks, and use proper techniques to prevent accidents.
Personal Protective Equipment (PPE)
Protective gear is essential for safe operation of the Stihl MS 250. Always wear safety glasses, gloves, sturdy boots, and hearing protection to minimize injury risks. Ensure proper fit and condition of all PPE to maintain effectiveness. Additionally, wear long pants or chainsaw chaps made of cut-resistant material to protect legs from accidental cuts. The manual emphasizes that failure to use appropriate PPE can lead to serious harm. Regularly inspect and replace worn or damaged gear to ensure optimal protection. Proper PPE is a critical component of responsible chainsaw operation and accident prevention.
Reactivation Forces and Kickback Prevention
Reactivation forces refer to the chain’s backward movement during operation. The Stihl MS 250 manual highlights the importance of understanding and managing these forces to prevent kickback. Kickback occurs when the chain’s upper quadrant contacts an object, causing the saw to jerk upward. To minimize this risk, use STIHL reduced kickback bars and chains, as specified in the manual. Proper chain maintenance, such as keeping it sharp and correctly tensioned, also reduces kickback potential. Always maintain control of the saw and avoid cutting in confined spaces. Following these guidelines ensures safer operation and reduces the likelihood of accidents caused by reactivation forces.
Chain Brake Operation
The chain brake on the Stihl MS 250 is a critical safety feature designed to stop the chain instantly in emergency situations. It activates automatically during kickback or can be engaged manually by pressing the front guard. When activated, the brake halts the chain within milliseconds, preventing further movement. Ensure the brake is functioning properly before each use and test it periodically. Always engage the chain brake when starting the engine or when not cutting. This feature significantly reduces the risk of injury and is essential for safe operation. Regular maintenance, such as cleaning and adjusting the brake, ensures optimal performance and reliability.
Operating the Stihl MS 250
Ensure safe and efficient operation by following proper techniques and precautions outlined in the manual. Familiarize yourself with controls and maintain a firm grip for precise cutting.
Starting the Engine
To start the Stihl MS 250, ensure the chain brake is engaged and the ignition switch is in the “on” position. Use the choke to enrich the fuel mixture for a cold start. Gently pull the starter rope with a firm, steady motion until the engine fires. Once the engine coughs, move the choke to the “half-throttle” position and pull the starter rope again until it runs smoothly. Allow the engine to warm up for a few seconds before beginning work. Always follow the manual’s guidelines to ensure a safe and efficient start.
Stopping the Engine
To stop the Stihl MS 250, first disengage the throttle by releasing the trigger. Next, locate the engine stop switch, typically found on the top of the chainsaw, and pull it out to shut off the engine. For added safety, engage the chain brake to ensure the chain stops moving. Allow the engine to cool slightly before storing or servicing. Always follow the manual’s specific instructions to avoid potential hazards and ensure proper shutdown procedures are followed. Regularly check the stop switch and chain brake for functionality to maintain safe operation.
Basic Cutting Techniques
Mastering basic cutting techniques with the Stihl MS 250 ensures safe and efficient operation. Start by maintaining a firm, balanced stance and a secure grip on the handles. For horizontal cuts, position the saw at waist height and apply steady, controlled pressure. Vertical cuts require careful alignment to avoid binding. Always cut on the pulling stroke, as the chain is most efficient in this direction. Use the weight of the saw to assist, rather than applying excessive force. Keep the chain sharp and properly tensioned to maintain performance. Practice these methods to achieve precise and clean results while minimizing fatigue and risk of accidents.
Maintenance and Servicing
Regular maintenance ensures optimal performance and longevity of the Stihl MS 250. Clean or replace air filters, check chain tension, and lubricate moving parts. Service intervals are specified in the manual to maintain efficiency and safety. Always use genuine Stihl parts for reliability and compliance with manufacturer standards. Proper servicing prevents wear and tear, ensuring consistent cutting performance over time.
Regular Maintenance Schedule
The Stihl MS 250 requires a regular maintenance schedule to ensure optimal performance. Every 10 operating hours, clean or replace the air filter to maintain proper airflow. Sharpen the chain regularly to prevent dulling and decreased cutting efficiency. Check the chain tension daily and adjust as needed to prevent wear on the bar and sprocket. Lubricate the chain and guide bar with Stihl chain oil after each use to reduce friction and prevent overheating. The carburetor should be adjusted periodically to maintain correct engine performance. Always refer to the manual for specific intervals and procedures to keep your chainsaw running smoothly.
Chain Tension Adjustment
Proper chain tension adjustment is crucial for safe and efficient operation of the Stihl MS 250. A loose chain can cause poor cutting performance or even break, while an overly tight chain may damage the bar or increase wear. To adjust, wear gloves and ensure the chain brake is engaged. Locate the adjustment screw on the side of the saw. Turn the screw clockwise to tighten or counterclockwise to loosen the chain. Check the tension by pulling the chain midway between the bar and the sprocket; it should snap back into place without sagging. Refer to the manual for detailed guidance to ensure correct tension every time.
Carburetor Adjustment
Proper carburetor adjustment ensures optimal performance of the Stihl MS 250. The carburetor regulates the fuel-air mixture, and incorrect settings can lead to poor engine performance or starting issues. To adjust, locate the low-speed and high-speed adjustment screws. Turn the low-speed screw clockwise for a richer mixture or counterclockwise for a leaner mixture. Similarly, adjust the high-speed screw for optimal power output. Always refer to the manual for specific instructions, as improper adjustments can damage the engine. After adjustment, test the saw under load to ensure smooth operation. Regular tuning is essential for maintaining peak performance and reliability.
Technical Specifications
The Stihl MS 250 features a 2-stroke, 45 cm³ engine, delivering 3.1 hp and 2300 watts. It uses a 3/8″ chain pitch and 35 cm bar, weighing 4.6 kg.
Engine Details
Engine Type: 2-stroke, air-cooled gasoline engine.
Displacement: 45.0 cm³.
Maximum Power Output: 3.1 hp (2.3 kW) at 9,500 rpm.
Maximum Torque: 2.2 Nm at 7,500 rpm.
Idling Speed: 2,800 rpm.
Fuel Mixture: 2% high-quality 2-stroke oil.
This engine design ensures efficient cutting performance with minimal emissions.
Chain and Bar Specifications
The Stihl MS 250 uses a 3/8″ pitch chain, designed for efficient cutting. Standard bar lengths range from 14″ to 16″. The chain must be compatible with the bar’s length and the saw’s specifications. Always use Stihl-approved chains for optimal performance and safety. The chain’s cutting teeth are angled for precise cuts, while the drive links ensure smooth operation. Proper chain tension is critical to avoid damage or poor cutting performance. Refer to the manual for specific chain and bar combinations recommended for your model. Adhering to these specifications ensures reliable operation, safety, and extended tool life.
Weight and Dimensions
The Stihl MS 250 weighs approximately 4.7 kg (10.4 lbs) without bar and chain. Its compact design enhances portability and maneuverability. The saw measures 34 cm (13.4″) in length and 26 cm (10.2″) in width. The ergonomic handle is designed for comfortable grip and control. Dimensions vary slightly depending on the bar length and model version. Always refer to the manual for exact specifications for your unit. Balanced weight distribution ensures reduced fatigue during extended use, making it suitable for professional and home applications. Proper handling based on these dimensions is essential for safe operation.
Troubleshooting Common Issues
This section addresses common issues like engine not starting, chain malfunction, or excessive vibration. Refer to the manual for detailed diagnostic steps, solutions, and maintenance tips.
Engine Not Starting
If the engine fails to start, check the ignition system, fuel supply, and air filter. Ensure the chain brake is disengaged and the choke is properly set. Verify that the fuel mixture is correct and the carburetor is adjusted according to the manual. If issues persist, inspect the spark plug for damage or fouling. Clean or replace it as needed. Consult the troubleshooting section for detailed steps to diagnose and resolve the problem. Regular maintenance, as outlined in the manual, can prevent such issues and ensure optimal performance. Always follow safety guidelines when servicing the chainsaw.
Chain Not Cutting Properly
If the chain is not cutting properly, check the chain tension and ensure it is adjusted correctly. A loose chain may not cut effectively, while an overly tight chain can cause excessive wear. Inspect the chain for dullness or damage; sharpen or replace it if necessary. Verify that the chain brake is fully disengaged, as an engaged brake can stop the chain from moving. Additionally, check the bar for alignment and damage, ensuring it is properly seated and not warped. Consult the manual for guidance on maintaining proper chain and bar conditions to restore cutting efficiency. Regular maintenance can prevent such issues and ensure optimal performance. Always follow safety guidelines when servicing the chainsaw.
Excessive Vibration
Excessive vibration can indicate issues with the chain, bar, or engine. Check for an unbalanced chain or bar, as this can cause uneven wear and vibration. Ensure the chain is properly tensioned and not loose. Inspect the bar for damage or warping, and replace it if necessary. A worn or damaged muffler can also contribute to increased vibration. Additionally, a malfunctioning engine or misaligned components may be the cause. Refer to the manual for diagnostic steps and solutions. Addressing vibration promptly is crucial to maintain performance and operator safety. Regular maintenance, such as balancing the chain and inspecting components, can help prevent excessive vibration and extend the chainsaw’s lifespan. Always follow the manufacturer’s guidelines for troubleshooting and repairs to ensure optimal functionality and safety.
Parts and Accessories
The Stihl MS 250 includes chains, bars, and replacement parts. Genuine accessories like air filters and carburetor kits ensure optimal performance. Visit the official Stihl website for details.
Identifying Main Components
The Stihl MS 250 consists of key components like the engine, chain, bar, and chain brake. The engine is a powerful 2-stroke unit, while the chain and bar are designed for efficient cutting. The chain brake ensures safety by halting the chain instantly. Other essential parts include the air filter, carburetor, and ignition system. Understanding these components is crucial for proper operation and maintenance. Always refer to the manual for detailed diagrams and descriptions to ensure accurate identification and servicing of each part. This knowledge helps in troubleshooting and maintaining the chainsaw’s performance and longevity.
Ordering Replacement Parts
To ensure compatibility and performance, always use genuine Stihl MS 250 replacement parts. These can be ordered through authorized Stihl dealers or official online platforms. The manual provides detailed part numbers and diagrams to help identify what you need. When ordering, specify the exact model and serial number to avoid errors. Genuine parts guarantee safety and maintain your chainsaw’s warranty. For assistance, consult Stihl customer support or refer to the parts catalog in the manual. This ensures you receive the correct components for optimal performance and longevity of your chainsaw.
Warranty and Support
The Stihl MS 250 is backed by a manufacturer’s warranty covering defects in materials and workmanship. Contact Stihl customer service for support and warranty claims.
Manufacturer’s Warranty
The Stihl MS 250 is covered by a manufacturer’s warranty, ensuring protection against defects in materials and workmanship. The warranty period varies depending on usage, with specific terms outlined in the manual. Stihl retains all rights, including distribution and translation, as stated in the document. For warranty claims or support, contact Stihl customer service directly. The manual emphasizes that only authorized personnel should perform repairs to maintain warranty validity. Additional details, including contact information like 7(495)055-17-24, are provided for convenience. This ensures users receive proper assistance while adhering to warranty conditions.
Customer Service Contact Information
For inquiries or support regarding the Stihl MS 250, contact Stihl customer service directly. The manual provides contact details such as phone numbers, including 7(495)055-17-24, for assistance. Additionally, users can refer to the Stihl official website or authorized dealers like Садтех24 for further information. The manual ensures access to resources like service manuals and troubleshooting guides. For warranty-related queries or technical support, reaching out to Stihl customer service is recommended. This ensures users receive accurate and timely assistance, maintaining the performance and longevity of their chainsaw.
The Stihl MS 250 Instruction Manual provides essential guidelines for safe and efficient operation. Adhering to its instructions ensures optimal performance and longevity of your chainsaw.
The Stihl MS 250 Instruction Manual emphasizes safety, proper operation, and maintenance. It covers starting and stopping the engine, chain tension adjustment, and troubleshooting common issues. Regular maintenance, such as carburetor adjustment and chain inspection, is crucial for optimal performance. The manual also highlights the importance of using genuine Stihl parts and adheres to warranty guidelines. By following the manual’s guidelines, users can ensure efficient and safe operation, prolonging the chainsaw’s lifespan and maintaining its reliability for various cutting tasks.
Final Safety Reminders
Always wear Personal Protective Equipment (PPE) including gloves, safety glasses, and hearing protection. Ensure the chain brake is engaged when not cutting and be aware of kickback zones. Regularly inspect the chain and bar for wear and damage. Keep bystanders at a safe distance and avoid cutting under unstable conditions. Follow all instructions for starting and stopping the engine, and never modify the saw’s safety features. Proper storage and maintenance are essential to prevent accidents. Adhere to all safety guidelines to ensure safe and effective operation of the Stihl MS 250.
References
Refer to the Stihl MS 250 Instruction Manual and official Stihl documentation for detailed guidance. Additional resources are available on the Stihl website and authorized dealers.
Additional Resources
For further assistance, visit the official Stihl website or authorized dealers like Садтех24. Download the Stihl MS 250 Instruction Manual in PDF format for detailed guidance. Additional resources include troubleshooting guides, technical specifications, and customer support contact information. Refer to Stihl’s official documentation for comprehensive information on maintenance, safety, and operation. Ensure to use only genuine Stihl parts and follow recommended practices for optimal performance. Contact Stihl customer service for any queries or clarifications.
- Official Stihl Website
- Authorized Dealers
- Customer Support
Stihl Official Documentation
The official Stihl documentation provides detailed information on the MS 250 chainsaw. It includes instruction manuals, service guides, and technical specifications. Available in multiple languages, these resources ensure safe and efficient operation. The manuals are accessible on Stihl’s website and authorized dealer platforms. They cover topics such as assembly, maintenance, and troubleshooting. Users can download PDF versions for easy reference. Stihl’s official documents are essential for understanding and maintaining your chainsaw. Always refer to these resources for accurate and reliable information.