stihl ms 251 c be manual
Category : Manuals
The Stihl MS 251 C-BE is a powerful and versatile chainsaw designed for demanding tasks, featuring a high-performance 2-Mix engine for efficiency and reduced emissions․ Its compact design and advanced features make it ideal for professionals and homeowners alike, ensuring precise cutting and durability․ This manual provides essential guidance for safe operation, maintenance, and troubleshooting, helping users maximize performance while adhering to safety standards․
1․1 Overview of the MS 251 C-BE Model
The Stihl MS 251 C-BE is a high-performance chainsaw featuring a powerful 2-Mix engine, designed for efficiency and reduced emissions․ Its compact, lightweight design ensures easy handling and maneuverability․ Suitable for demanding tasks, this model offers advanced features like quick chain tensioning and a reliable chain brake system, making it ideal for both professional and residential use․
1․2 Importance of the Manual for Safe and Effective Use
The manual is essential for understanding safety guidelines, proper operation, and maintenance of the Stihl MS 251 C-BE․ It provides detailed instructions to ensure safe handling, assembly, and troubleshooting․ By following the manual, users can prevent accidents, optimize performance, and extend the chainsaw’s lifespan․ It also explains pictograms and symbols, ensuring compliance with safety standards and environmental considerations․
Safety Precautions and Guidelines
Always follow safety guidelines to ensure safe handling and prevent workplace accidents․ Wear recommended protective gear and understand pictograms․ Proper handling reduces risks and ensures efficient operation․
2․1 General Safety Instructions for Chainsaw Operation
Always follow safety guidelines when operating the Stihl MS 251 C-BE․ Wear protective gear like helmets, gloves, and safety glasses․ Understand pictograms on the machine for safe operation․ Ensure the chain brake is engaged during transport․ Keep a firm grip, maintain balance, and stay alert to surroundings․ Avoid cutting in enclosed spaces to prevent accidents․ Proper handling reduces risks and ensures efficient operation․
2․2 Understanding Pictograms and Symbols on the Machine
The Stihl MS 251 C-BE features pictograms and symbols to guide safe operation․ These markings indicate warnings, cautions, and operational instructions․ Common symbols include cutting warnings, chain brake activation, and protective equipment reminders․ Understanding these pictograms is essential for proper use and safety․ Refer to the manual for detailed explanations of all symbols to ensure compliance with safety guidelines and optimal machine performance․
2․3 Personal Protective Equipment Recommendations
Always wear approved personal protective equipment when operating the Stihl MS 251 C-BE․ This includes a helmet with a face shield, ear protection, safety glasses, sturdy gloves, and chainsaw protective clothing․ Proper footwear and chainsaw chaps or trousers are also essential․ Using Stihl-recommended gear ensures compliance with safety standards and minimizes injury risks during operation․ Never operate without proper protective equipment․
Operating Instructions
Follow the manual’s step-by-step guide for assembly, starting, and proper cutting techniques․ Ensure all safety measures are in place before operating the chainsaw effectively and safely․
3․1 Assembly and Preparation Before Use
Before operating, ensure the chain is correctly attached and tensioned․ Check all components for damage or wear․ Fill the fuel tank with a 1:50 oil-gasoline mix․ Activate the chain brake and ensure the saw is properly assembled․ Refer to the manual for detailed steps to ensure safe and effective preparation of your Stihl MS 251 C-BE chainsaw․
3․2 Starting and Stopping the Chainsaw
To start, move the master control lever to the cold start position, pull the starter handle gently until resistance is felt, then pull firmly․ Once the engine fires, return the lever to the idle position․ To stop, either shut off the ignition switch or move the master control lever to the stop position․ Always ensure the chain brake is engaged when stopping․
3․3 Proper Handling and Cutting Techniques
Ensure a firm, comfortable grip with both hands, maintaining control and balance․ Position the chainsaw at a slight angle, engaging the chain only on the cutting stroke․ Use boring and snip cuts for precise results․ Always cut on the pull stroke and avoid overreaching․ Keep the chain sharp and properly tensioned for efficient cutting․ Maintain control and safety throughout the operation;
Maintenance and Servicing
Regular maintenance ensures optimal performance and longevity․ Perform daily checks, sharpen the chain, and clean or replace filters as needed․ Follow manual guidelines for servicing tasks․
4․1 Daily Maintenance Checks and Procedures
Before each use, inspect the chain for sharpness and proper tension․ Ensure the chain brake is functioning correctly and all bolts are tightened․ Clean the air filter and bar, and check the oil levels․ Regularly lubricate the bar and chain to prevent wear․ These checks ensure safe and efficient operation of the MS 251 C-BE chainsaw․
4․2 Chain Sharpening and Tensioning Guidelines
Sharpen the chain with a 4․5mm file, maintaining the correct angle and depth․ Check for worn or damaged teeth and replace the chain if necessary․ Adjust tension by loosening the bar nuts, tightening the tension screw until the chain snugly touches the bar․ Proper tension ensures efficient cutting and prevents premature wear on the bar and chain․
4․3 Engine and Air Filter Maintenance
Regularly clean or replace the air filter to ensure proper engine performance and efficiency․ Inspect the filter for dust and debris, and follow the manufacturer’s recommendations for replacement intervals․ A clean air filter prevents damage to the engine and maintains optimal power output․ Always ensure the filter is securely fitted to avoid contamination․ Proper maintenance prolongs the engine’s lifespan and ensures reliable operation․
Troubleshooting Common Issues
This section helps identify and resolve common issues with the Stihl MS 251 C-BE, such as chain-related problems, engine performance, and chain brake malfunctions, ensuring optimal functionality․
5․1 Identifying and Resolving Chain-Related Problems
Chain issues often arise from improper tension, dullness, or misalignment․ Regularly inspect and adjust the chain tension to prevent slackness․ Sharpen the chain when it shows signs of wear․ Ensure proper alignment on the bar․ If problems persist, consult the manual for detailed troubleshooting steps and maintenance tips to restore optimal performance and safety․
5․2 Addressing Engine Performance Issues
Engine issues may include poor starting, lack of power, or unusual noises․ Check air filters for cleanliness and ensure proper fuel mixture․ Spark plug condition and ignition timing are critical․ Consult the manual for diagnostic steps․ If problems persist, contact a Stihl dealer for professional servicing to restore optimal engine performance and reliability․
5․3 Solving Issues with the Chain Brake and Safety Features
Common issues with the chain brake include failure to engage or disengage properly․ Check for wear or damage to the brake components and ensure correct adjustment․ Refer to the manual for specific instructions on testing and resetting the brake․ If problems persist, inspect the brake mechanism thoroughly and consult a Stihl dealer for professional assistance to ensure safe operation․
Stihl MS 251 C-BE Manual Structure
The manual is structured for easy navigation, covering safety, operation, maintenance, and troubleshooting․ Key sections include Safety Precautions, Operating Instructions, Maintenance, and Troubleshooting, each with detailed subsections․
6․1 Key Sections of the Manual
The manual includes Safety Precautions, Operating Instructions, Maintenance, Troubleshooting, Technical Specifications, Accessories, Transport and Storage, Customer Support, and Environmental Considerations․ Each section provides detailed guidance, ensuring comprehensive understanding and safe operation of the Stihl MS 251 C-BE chainsaw․ This structure helps users quickly locate essential information for optimal performance and maintenance․
6․2 How to Navigate the Manual Effectively
The manual is designed for easy navigation, with a clear table of contents and logical sectioning․ Users can quickly locate information by referencing the detailed headings and subheadings․ Key topics are highlighted for rapid access, and illustrations support complex procedures․ Familiarizing yourself with the manual’s structure ensures efficient troubleshooting and maintenance, enhancing both safety and performance․
Technical Specifications
The Stihl MS 251 C-BE features a 45․6 cm³ engine, producing 1․5 kW/2․0 hp․ It weighs 4․6 kg and is equipped with a 40 cm bar and Picco 1․3 mm chain, ensuring efficient cutting performance․
7․1 Engine Displacement and Power Output
The Stihl MS 251 C-BE is powered by a 45․6 cm³ 2-Mix engine, delivering 1․5 kW (2․0 hp) at 8,500 rpm․ This high-performance engine combines efficiency with reduced emissions, ensuring optimal power for demanding cutting tasks while maintaining environmental standards․ Its compact design and advanced combustion technology make it a reliable choice for professionals and homeowners seeking consistent performance in various applications․
7․2 Bar and Chain Specifications
The Stihl MS 251 C-BE features a 40 cm (16″) or 45 cm (18″) guide bar, compatible with a 0․325″ pitch, 1․6 mm gauge chain․ The chain, such as the Picco Micro 3, is designed for high cutting efficiency․ The guide rail length and chain specifications ensure precise cutting performance, making it suitable for a variety of logging and woodworking applications․ Always use genuine Stihl parts for optimal results․
7․3 Weight and Dimensions
The Stihl MS 251 C-BE weighs approximately 10․1 lbs (4․6 kg) without the bar and chain, making it lightweight for easy handling․ The chainsaw features a compact design with a guide bar length of 16″ (40 cm) or 18″ (45 cm)․ Its dimensions ensure portability while maintaining robust performance, ideal for various cutting tasks․ Genuine Stihl parts ensure compatibility and optimal functionality․
7․4 Emission and Environmental Standards
The Stihl MS 251 C-BE features a 2-Mix engine, designed to reduce emissions and fuel consumption while maintaining high performance․ It meets stringent environmental standards, producing fewer emissions compared to conventional engines․ This eco-friendly design aligns with environmental regulations, making it a responsible choice for users․ Proper maintenance and operation further enhance its environmental efficiency․
Accessories and Optional Equipment
Stihl offers various accessories for the MS 251 C-BE, including chain scabbards, carrying cases, and additional guide bars, to enhance functionality and convenience for diverse cutting tasks․
8․1 Recommended Accessories for the MS 251 C-BE
Stihl offers a range of accessories to enhance the MS 251 C-BE’s performance, including chain scabbards, carrying cases, and additional guide bars․ Optional features like the quick chain tensioning system and heated handles improve convenience․ Accessories like replacement chains, sharpening tools, and protective gear are also recommended to ensure optimal operation and safety, tailored to specific cutting tasks and user preferences․
8․2 Installation and Use of Additional Features
Additional features like the chain scabbard and heated handles enhance functionality․ Installation should follow the manual’s guidelines to ensure proper fitment and safety․ Heated handles improve comfort in cold conditions, while the scabbard protects the chain during transport․ Always engage the chain brake and scabbard before moving the saw to prevent accidental start-ups, ensuring safe and efficient use of the machine․
Transport and Storage
Safe transport involves switching off the machine, engaging the chain brake, and using a scabbard to prevent accidental starts․ Store in a dry, secure location with the chain clean and protected․
9․1 Safe Transportation Practices
Always switch off the chainsaw, engage the chain brake, and attach the chain scabbard before transporting․ This prevents accidental starts and ensures the chain remains protected․ Keep the machine secure to avoid movement during transit․ Regularly inspect the chain and bar for damage or wear․ Follow all local regulations and safety guidelines to ensure safe transportation of the Stihl MS 251 C-BE․
9․2 Proper Storage Conditions
Store the Stihl MS 251 C-BE in a dry, well-ventilated area to prevent rust and moisture damage․ Use the chain scabbard to protect the bar and chain․ Ensure the chain brake is engaged and the machine is clean․ Avoid storing in direct sunlight or extreme temperatures․ Regularly inspect for wear and damage․ Keep out of reach of children and ensure the saw is stable to prevent accidental movement․
Customer Support and Resources
For assistance, contact authorized Stihl dealers or visit the official website for online manuals, guides, and troubleshooting resources to ensure optimal performance and safety of your chainsaw․
10․1 Contacting Stihl Dealers for Assistance
Authorized Stihl dealers provide expert support, repairs, and genuine parts for the MS 251 C-BE․ Visit the official Stihl website to locate your nearest dealer․ Contact them via phone, email, or in-person for troubleshooting, maintenance, or to schedule service․ Dealers ensure your chainsaw operates safely and efficiently, offering tailored advice and solutions for optimal performance․
10․2 Availability of Online Manuals and Guides
The Stihl MS 251 C-BE manual is available online as a free PDF download․ Visit official Stihl websites or platforms like ManualsPDF․ru to access the guide․ Ensure the file corresponds to your model for accurate information․ Download by selecting the file, entering the image code, and following the prompts․ This resource provides comprehensive details for safe and effective use of your chainsaw․
Environmental Considerations
11․1 Eco-Friendly Features of the MS 251 C-BE
The MS 251 C-BE features a fuel-efficient 2-Mix engine, reducing emissions and environmental impact․ Its advanced design minimizes fuel consumption while maintaining high performance, promoting eco-friendly use․
The MS 251 C-BE features a fuel-efficient 2-Mix engine, reducing emissions and environmental impact․ Its advanced design minimizes fuel consumption while maintaining high performance, promoting eco-friendly use․ Additionally, the chainsaw complies with stringent emission standards, making it an environmentally responsible choice for landscaping and forestry tasks․ Stihl’s commitment to sustainability ensures the MS 251 C-BE balances power with eco-conscious operation․
11․2 Responsible Use and Disposal Guidelines
Responsible use involves following environmental regulations and minimizing waste․ Properly dispose of used oil, filters, and batteries through authorized facilities․ Recycle or safely discard worn-out parts․ Always follow local guidelines for handling hazardous materials․ Ensure the chainsaw is used sustainably to reduce its ecological footprint․ Stihl recommends using biodegradable chain oils to further support environmentally friendly practices․