Stihl MS 461 Instruction Manual

Pages 136

Year 2020

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of 136

Stihl MS 461 Specification

The Stihl MS 461 is a high-performance professional chainsaw designed for demanding forestry and arboriculture tasks. It is equipped with a powerful 76.5 cc two-stroke engine that delivers impressive power output and torque, making it suitable for heavy-duty cutting tasks. The chainsaw features a robust construction with a lightweight design, weighing approximately 6.7 kg without the bar and chain, ensuring ease of handling during extended use. The MS 461 incorporates an advanced anti-vibration system that reduces operator fatigue by minimizing vibrations transmitted to the user, enhancing comfort and control.

For efficient fuel consumption and reduced emissions, the MS 461 is equipped with Stihl’s advanced stratified charge engine technology. This system optimizes fuel efficiency while meeting stringent emission standards, making it both economical and environmentally friendly. The chainsaw also features a high-performance air filtration system with a pre-separation mechanism that increases the longevity of the air filter by removing larger particles before they reach the filter.

The MS 461 offers an adjustable automatic oiler, allowing precise control over chain lubrication based on cutting conditions, which helps extend the life of the bar and chain. It is compatible with a variety of bar lengths, typically ranging from 16 to 32 inches, providing versatility for different cutting requirements. The chainsaw’s side-access chain tensioner allows for easy and quick chain adjustments, contributing to improved operational efficiency. With its combination of power, durability, and user-friendly features, the Stihl MS 461 is a reliable choice for professionals seeking a robust tool for challenging cutting tasks.

Stihl MS 461 F.A.Q.

How do I start my Stihl MS 461 chainsaw?

To start your Stihl MS 461, ensure the chain brake is engaged, set the master control lever to the cold start position, pull the starter rope until the engine fires, then move the control lever to the warm start position and pull again until the engine starts.

What is the recommended fuel mixture for the MS 461?

The recommended fuel mixture for the Stihl MS 461 is a 50:1 ratio of gasoline to Stihl two-stroke engine oil. Use high-quality 89-octane unleaded gasoline and Stihl oil for best performance.

How can I troubleshoot if my chainsaw won't start?

If your Stihl MS 461 won't start, check the fuel level and mixture, inspect the spark plug for damage or deposits, ensure the air filter is clean, and verify that the master control lever is set correctly.

What maintenance tasks should I perform regularly?

Regular maintenance for the MS 461 includes cleaning the air filter, checking and replacing the spark plug as needed, sharpening the chain, inspecting the guide bar, and cleaning the cooling fins.

How do I properly sharpen the chain on my MS 461?

To sharpen the chain, use a round file that matches the chain's pitch, maintaining the correct angles and filing each cutter evenly. Consider using a filing guide for consistency.

What should I do if the chain is not rotating properly?

If the chain is not rotating properly, check that the chain brake is disengaged, inspect the clutch for wear or damage, and ensure the chain tension is adjusted correctly.

How can I adjust the carburetor on my MS 461?

To adjust the carburetor, locate the three adjustment screws marked L, H, and LA. Use a screwdriver to adjust the low-speed (L) and high-speed (H) screws for proper engine performance, and adjust the idle speed (LA) screw to ensure the chain does not move at idle.

What precautions should I take when using the MS 461?

When using the MS 461, always wear appropriate safety gear, maintain a firm grip on the saw, be aware of your surroundings, particularly of any potential kickback situations, and never operate the saw above shoulder height.

How do I clean the air filter on the MS 461?

To clean the air filter, remove the top cover, take out the air filter, and gently clean it with compressed air or wash it with warm soapy water. Allow it to dry completely before reinstalling.

What should I do if my chainsaw is overheating?

If your chainsaw is overheating, ensure the cooling fins are clear of debris, check the air filter for clogs, verify the fuel mixture is correct, and ensure the chain is properly lubricated and tensioned.