ms170 stihl manual

1.2 Importance of the Manual for Safe and Effective Use

The manual is essential for safe and effective operation of the STIHL MS 170 chainsaw. It provides detailed instructions on safety precautions, proper techniques, and maintenance routines. Following the manual ensures compliance with safety standards, preventing accidents and prolonging the tool’s lifespan. It also guides users on troubleshooting common issues, optimizing performance, and understanding key features like the chain brake and engine controls. Adhering to the manual is crucial for both novice and experienced users to maximize efficiency and safety.

Safety Precautions and Guidelines

Always operate the STIHL MS 170 in well-ventilated areas, avoiding enclosed spaces. Keep loose clothing tied back and ensure the chain brake is functional before use; Proper PPE, including gloves and safety glasses, is essential. Be aware of kickback risks and maintain a firm grip on the saw. Follow all safety guidelines to minimize hazards and ensure safe operation.

2.1 General Safety Rules for Operating a Chainsaw

Always maintain a safe working area, free from obstacles and bystanders. Ensure proper footing and balance to avoid accidents. Keep the chainsaw at a safe distance from your body and never cut above shoulder height. Be aware of your surroundings, including overhead obstacles. Use proper cutting techniques to minimize kickback risks. Ensure the saw is in good working condition before use, and never operate it while fatigued or under the influence of alcohol.

2.2 Personal Protective Equipment (PPE)

Wear safety glasses or goggles to protect eyes from debris. Use ear protection to reduce noise exposure. A hard hat is recommended for overhead hazards. Chainsaw chaps or cut-resistant pants safeguard legs. Gloves improve grip and protect hands. Steel-toe boots with traction prevent foot injuries. Ensure all PPE fits properly and meets safety standards. Always inspect PPE before use and replace worn or damaged items. Adhere to local regulations for additional requirements.

2.3 Reactive Forces and Kickback Prevention

Understand reactive forces, which occur during cutting and can cause loss of control. Kickback happens when the chain’s upper edge strikes an object, forcing the saw backward. Maintain a firm grip with both hands, avoid overreaching, and ensure the chain is sharp. Use the chain brake when not cutting and keep the saw close to your body. Proper technique and awareness reduce kickback risks and improve control during operation.

Key Features of the STIHL MS 170

The STIHL MS 170 is a compact chainsaw designed for home use, featuring a powerful engine, lightweight design, and reduced vibration for enhanced portability and control, with an efficient chain system and reliable starting mechanism.

3.1 Engine Power and Specifications

The STIHL MS 170 features a robust 1.9 HP (1300 W) engine, delivering reliable power for cutting tasks. Its 2-stroke gasoline engine provides efficient performance, with a displacement of 30.1 cm³. The engine’s design ensures low emissions and reduced fuel consumption, making it environmentally friendly. Equipped with a high-torque output, it handles small to medium-sized logs effortlessly, combining power and portability for versatile use in home and garden applications.

3.2 Weight and Portability

The STIHL MS 170 weighs just 3.9 kg (8.6 lbs), making it lightweight and easy to handle. Its compact design enhances portability, allowing users to maneuver effortlessly during cutting tasks. The balanced weight distribution reduces fatigue, enabling extended use without strain. This portability makes it ideal for homeowners and outdoor enthusiasts needing a reliable, easy-to-carry chainsaw for smaller-scale cutting jobs and gardening tasks.

3.3 Chain Pitch and Bar Length Options

The STIHL MS 170 features a 3/8″ chain pitch, offering excellent cutting efficiency for small to medium-sized logs. The bar length options range from 12 to 14 inches, providing versatility for various cutting tasks. This setup ensures precise cuts and manageable handling, making it suitable for homeowners and light-duty applications. The combination of chain pitch and bar length optimizes performance for typical gardening and firewood cutting needs.

Technical Specifications

The STIHL MS 170 features a 1.9 HP engine, weighing 3.9 kg with a 3/8″ chain pitch and 12-14″ bar length, ideal for lightweight tasks.

4.1 Engine Power: 1.9 HP / 1300 W

The STIHL MS 170 is equipped with a powerful 1.9 HP engine, delivering 1300 watts of energy. This robust motor ensures efficient cutting performance, making it suitable for light to medium-duty tasks like pruning and small-scale logging. The engine’s compact design contributes to the chainsaw’s overall portability while maintaining the necessary power for consistent operation. This balance of power and efficiency makes the MS 170 a reliable choice for homeowners and professionals alike.

4.2 Weight: 3.9 kg (8.6 lbs)

The STIHL MS 170 weighs 3.9 kg (8.6 lbs), making it lightweight and easy to maneuver. This compact design reduces user fatigue during extended use, allowing for improved control and precision. Its portability is ideal for homeowners and professionals needing to handle small to medium cutting tasks. The balanced weight distribution enhances stability, ensuring efficient and safe operation in various working conditions.

4.3 Chain Pitch: 3/8″

The STIHL MS 170 features a chain pitch of 3/8″, designed for efficient cutting performance. This standard pitch ensures compatibility with a wide range of replacement chains, making maintenance straightforward. The 3/8″ pitch is ideal for light to medium-duty tasks, providing a balance between cutting speed and precision. It is well-suited for trimming small branches and firewood, delivering reliable results in various cutting scenarios.

Operating the Chainsaw

Mastering the operation involves understanding start-up procedures, throttle control, and chain engagement. Proper handling ensures balance, control, and safety during cutting tasks, optimizing performance and efficiency.

5.1 Starting and Stopping the Engine

To start the engine, prime the carburetor by pressing the primer bulb 4-6 times. Move the choke to the “start” position, grasp the handle firmly, and pull the starter rope steadily until it engages. Once running, transition the choke to “run.” To stop, switch off the engine using the ignition switch or allow it to idle until it shuts off. Always wear PPE during these processes.

5.2 Throttle and Choke Operation

The throttle controls engine speed, determining the chain’s cutting efficiency. The choke regulates air-fuel mixture for starting and warming up. Move the choke to “start” for cold starts, then to “choke” until the engine runs smoothly. Once warmed up, set the choke to “run.” Adjust the throttle gently to maintain optimal cutting performance. Avoid sudden throttle changes to prevent kickback and ensure precise control during operation.

5.4 Chain Brake Functionality

The chain brake is an essential safety feature designed to stop the chain immediately in emergency situations, such as kickback. Located on the top handle, it is activated by pushing the brake forward, engaging a metal component that halts chain movement. Proper use involves activating it instantly upon losing control or encountering unexpected movement. Regular maintenance, including cleaning and checking for wear, ensures reliability. Training is crucial for quick and effective use, complementing other safety mechanisms for optimal protection during operation.

Maintenance and Care

Regular maintenance ensures optimal performance and longevity of the STIHL MS 170. Follow manufacturer guidelines for cleaning, lubrication, and proper storage to maintain efficiency and safety.

6.1 Daily Checks and Pre-Operation Inspections

Before each use, inspect the chain for sharpness and proper tension. Check the chain brake for functionality and ensure all bolts and screws are tightened. Examine the air filter and muffler for cleanliness. Verify that the oil and fuel levels are adequate. Ensure the saw is free from debris and damage. Perform these checks to ensure safe and efficient operation of the STIHL MS 170 chainsaw.

6.2 Sharpening the Saw Chain

Sharpen the chain regularly using a file compatible with the chain’s pitch. Maintain the recommended angle and depth to ensure optimal cutting performance. Check the cutter tooth length and filings for uniformity. Use STIHL’s sharpening tools for accuracy. Proper sharpening prevents wear, reduces vibration, and improves efficiency. Always refer to the manual for specific sharpening techniques and guidelines to maintain the chain’s effectiveness and safety.

6.3 Cleaning the Air Filter and Muffler

Clean the air filter regularly to ensure proper airflow and engine performance. Remove the filter, brush off dust, and inspect for damage. Replace if worn. Clean the muffler to prevent carbon buildup and overheating. Use a soft brush to remove debris. Refer to the manual for detailed steps. Proper cleaning enhances efficiency, reduces exhaust issues, and prolongs engine life. Always reinstall components securely after cleaning.

Chain and Bar Maintenance

Regular chain and bar maintenance ensures optimal performance. Adjust chain tension, sharpen cutters, lubricate, and inspect for wear to maintain efficiency and safety.

7.1 Proper Chain Tension Adjustment

Proper chain tension adjustment is critical for safe and efficient operation. Check the chain tension daily. Tighten the chain until it sits snugly on the bar, ensuring it doesn’t sag. Use the tensioning screw on the STIHL MS 170 to achieve the correct tightness. A properly tensioned chain enhances cutting performance and prevents damage. Always refer to the manual for specific guidance on tensioning to avoid over-tightening, which can lead to increased wear or reduced chain life.

7.2 Lubrication of the Chain and Bar

Lubrication is essential for maintaining the chain and bar. Use STIHL chain lubricant to reduce friction and prevent wear. Check the oil reservoir daily and refill as needed. The MS 170 features an automatic oiler system, but manual adjustment may be required for optimal chain lubrication. Ensure the oil flow is consistent to prevent overheating and extend the life of the chain and bar. Always follow the manual’s guidelines for proper lubrication practices.

7.3 Replacing the Chain and Bar

To replace the chain and bar, use only STIHL-approved parts for optimal performance. Remove the chain by taking off the side cover and sliding it off. Take out the guide bar nuts and remove the bar. Install the new bar, ensuring proper alignment. Fit the new chain, adjust tension, and secure the bar nuts tightly. Always refer to the manual for precise torque specifications. Check chain tension and lubrication after replacement.

Troubleshooting Common Issues

Address issues like engine failure, poor performance, or mechanical malfunctions by checking fuel, spark plugs, and chain condition. Ensure proper maintenance and adjustments for optimal operation.

8.1 Engine Not Starting

If the engine fails to start, check the fuel level and quality. Ensure the spark plug is clean and properly gapped. Verify the air filter is clean or replace it if necessary. Check for blockages in the muffler and ensure the ignition coil is functioning. Consult the manual for proper starting procedures and adjust the choke as needed. If issues persist, contact an authorized STIHL service center for professional assistance.

8.2 Poor Cutting Performance

Poor cutting performance can result from a dull saw chain, incorrect chain tension, or improper chain pitch for the material. Check the chain for sharpness and damage, ensuring it’s properly tensioned; Verify the chain pitch matches the bar length and wood type. Avoid cutting oversized materials and maintain consistent pressure. Refer to the manual for chain sharpening and tensioning guidelines. If issues persist, consult an authorized STIHL service center for professional assistance.

8.3 Excessive Vibration or Noise

Excessive vibration or noise may indicate a loose or damaged chain, misaligned bar, or improper chain pitch. Check the chain for wear or damage and ensure it’s properly tensioned. Verify the bar alignment and chain pitch compatibility. A dull chain can also cause increased vibration. Refer to the manual for chain maintenance and alignment procedures. If the issue persists, contact an authorized STIHL service center for professional inspection and repair.

Storage and Transportation

Store the chainsaw in a dry, well-ventilated area, away from direct sunlight and flammable materials. During transportation, secure the saw to prevent movement and damage. Always use protective covers for the bar and chain to ensure safety and maintain condition.

9.1 Proper Storage Conditions

Store the STIHL MS 170 in a clean, dry, and well-ventilated area. Keep it away from direct sunlight, moisture, and flammable materials. Ensure the chainsaw is cool before storage to prevent rust and damage. Hang the saw securely or place it on a stable surface, out of children’s reach. Cover the bar and chain with a protective cover to shield from dust and debris. Always engage the chain brake for added safety during storage.

9.2 Safe Transportation Practices

When transporting the STIHL MS 170, ensure the chain brake is engaged and the saw is securely fastened to prevent movement. Use a protective cover for the bar and chain to avoid damage or injury. Keep the saw upright and away from loose items that could cause accidents. Always transport the chainsaw with minimal fuel or with an empty tank to reduce leakage risks. Follow local regulations and manufacturer guidelines for safe and legal transport.

Environmental Considerations

Adhere to environmental guidelines by minimizing emissions and ensuring responsible fuel handling. Prevent spills and avoid operation in sensitive ecosystems to protect the environment.

10.1 Avoiding Operation in Enclosed Spaces

Operating the STIHL MS 170 in enclosed spaces is hazardous due to the buildup of exhaust fumes and emissions. Always use the chainsaw in well-ventilated areas to prevent carbon monoxide accumulation, which can be deadly. Ensure good airflow to maintain operator safety and reduce environmental impact from emissions.

Move the chainsaw to an open area if indoor use is unavoidable. Never operate it in basements, garages, or tents without proper ventilation. This precaution minimizes health risks and ecological damage.

10.2 Responsible Fuel Handling

Always use the correct fuel mixture for the STIHL MS 170, as specified in the manual. Store fuel in approved containers to prevent spills and contamination. Use fuel in well-ventilated areas to avoid inhaling harmful fumes. Dispose of unused fuel properly, following local regulations. Clean up spills immediately to protect the environment and ensure safe operation.

Never store fuel in unmarked or unsuitable containers, as this can lead to accidents or environmental harm.

Warranty and Service Information

The STIHL MS 170 is covered by a comprehensive warranty for a specified period. Regular maintenance and authorized service ensure warranty validity and optimal performance.

11.1 Warranty Coverage Details

The STIHL MS 170 chainsaw is backed by a comprehensive warranty covering manufacturing defects for a specified period. The warranty ensures repair or replacement of defective parts when used as directed. Proper maintenance and adherence to the manual’s guidelines are essential for warranty validity. Unauthorized modifications or misuse may void coverage. Warranty benefits include protection against material and workmanship defects, ensuring reliability and performance. Always refer to the manual or contact STIHL for specific terms and conditions.

11.2 Finding Authorized Service Centers

To locate an authorized STIHL service center, visit the official STIHL website and use their dealer locator tool. Enter your location to find nearby certified dealers. Alternatively, contact STIHL customer support directly for assistance. Ensure your chainsaw is serviced by authorized professionals to maintain warranty validity and guarantee reliable repairs. Always refer to the manual or STIHL’s official resources for accurate and up-to-date information on service centers near you.

Ordering Spare Parts

Order genuine STIHL MS 170 spare parts through authorized dealers or online platforms. Use the manual or STIHL’s official website to identify correct parts and ensure compatibility.

12.1 Identifying Correct Replacement Parts

To ensure compatibility, always use the STIHL MS 170 manual or official parts diagram to identify the correct replacement components. Verify part numbers and descriptions before ordering. Cross-reference with STIHL’s online catalog or consult authorized dealers to confirm accuracy. This prevents mismatches and ensures optimal performance. Avoid using third-party parts unless explicitly approved by STIHL to maintain safety and warranty validity.

12.2 Online and Offline Ordering Options

STIHL MS 170 replacement parts can be ordered online through the official STIHL website or authorized dealer portals. For offline purchases, visit local STIHL dealers or service centers. Ensure to provide the correct part numbers from the manual for accurate ordering. Online platforms often offer real-time inventory checks, while offline stores provide immediate assistance. Always verify the authenticity of sellers to ensure genuine STIHL parts.

The STIHL MS 170 manual provides essential guidance for safe and effective operation. Proper maintenance ensures reliability and longevity, while environmental considerations promote responsible use. Always follow guidelines for optimal performance and safety.

13.1 Summary of Key Points

The STIHL MS 170 manual emphasizes safety, proper operation, and maintenance. It covers engine specs, chain care, and troubleshooting. Adhering to guidelines ensures optimal performance and longevity. Always prioritize safety precautions, regular inspections, and environmental responsibility for efficient and secure use of the chainsaw.

13.2 Final Tips for Optimal Performance

Always maintain the chain sharpness and proper tension for efficient cutting. Regularly clean the air filter and check the muffler to ensure smooth engine operation. Lubricate the chain and bar frequently to reduce wear. Store the chainsaw in a dry, cool place and follow proper fuel storage guidelines. Adhere to the manual’s guidelines for troubleshooting and maintenance to maximize performance and extend the tool’s lifespan.