Stihl MS 461 Rescue Instruction Manual

Pages 148

Year 2018

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of 148

Stihl MS 461 Rescue Specification

The Stihl MS 461 Rescue is a specialized chainsaw designed for high-demand rescue operations, offering robust performance and durability. This model is powered by a high-capacity, 76.5 cc two-stroke engine that delivers 4.5 kW of power, ensuring efficient cutting through tough materials encountered in emergency scenarios. Its lightweight construction, weighing approximately 7 kg, enhances maneuverability without compromising on strength or reliability.

The chainsaw features a specially designed wrap-around handle, providing superior grip and control from multiple angles, which is crucial in unpredictable rescue conditions. Equipped with an advanced anti-vibration system, it minimizes user fatigue, allowing operators to work longer with increased precision and safety. The MS 461 Rescue incorporates a rapid chain tensioning system, enabling quick adjustments without the need for additional tools, thereby reducing downtime during critical operations.

To enhance its suitability for rescue missions, the chainsaw is outfitted with a distinctive carbide-tipped chain and a depth limiter, enabling it to cut through a variety of materials such as roofing, wood, and glass-reinforced plastics. Its large-capacity fuel tank provides extended operational time, while the ElastoStart starter handle ensures smooth and reliable engine ignition.

Safety features are paramount, with the inclusion of a chain brake system that activates in emergencies to prevent accidents. Additionally, the air filtration system is designed to keep debris out, maintaining engine performance even in dusty environments. The Stihl MS 461 Rescue is engineered to meet the stringent demands of emergency responders, combining power, versatility, and reliability in a compact and efficient tool.

Stihl MS 461 Rescue F.A.Q.

How do I start the Stihl MS 461 Rescue chainsaw?

To start the Stihl MS 461 Rescue, ensure the chain brake is activated by pushing it forward. Set the Master Control Lever to the start position. Pull the starter handle slowly until you feel resistance, then pull quickly and firmly. Repeat until the engine fires. Once the engine is running, squeeze the throttle trigger to set it to idle.

What type of fuel mix should I use for the MS 461 Rescue?

The Stihl MS 461 Rescue requires a 50:1 fuel mix, which is 50 parts unleaded gasoline to 1 part Stihl 2-Stroke Engine Oil. Ensure that the gasoline has an octane rating of at least 89.

How do I troubleshoot if the chainsaw won't start?

Check the following: Ensure there is fresh fuel in the tank, inspect the spark plug for damage or wear and replace if necessary, clean the air filter, and ensure the carburetor is properly adjusted. If the issue persists, consult a Stihl service technician.

What maintenance should be performed regularly on the MS 461 Rescue?

Regular maintenance includes cleaning the air filter, inspecting and cleaning the spark plug, checking the chain tension, sharpening the chain, and examining the guide bar for wear. Additionally, ensure the fuel and oil levels are adequate before use.

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

Use a round file with the correct diameter for your chain. File each cutter with an even number of strokes, maintaining the original angle of the cutting edge. Ensure the depth gauges are also maintained at the correct height using a depth gauge tool.

What safety precautions should I take while using the MS 461 Rescue?

Wear appropriate personal protective equipment such as chainsaw chaps, gloves, helmet, ear protection, and eye protection. Ensure the work area is clear of obstructions and other people. Always use the chainsaw with both hands and keep a firm grip.

How can I clean and maintain the air filter on the MS 461 Rescue?

Remove the air filter cover and take out the filter. Use a brush or compressed air to clean the filter, being careful not to damage it. If the filter is excessively dirty or damaged, replace it with a new one.

What should I do if the chain is not rotating on the MS 461 Rescue?

First, check if the chain brake is engaged and release it if necessary. Inspect the chain tension and adjust if it’s too tight. Ensure the clutch and sprocket are in good condition and free of debris.

How do I adjust the carburetor on the MS 461 Rescue?

Locate the three adjustment screws marked L (low speed), H (high speed), and LA (idle speed). Use a screwdriver to adjust these screws. Turn the L screw to adjust low-speed performance, the H screw for high-speed performance, and the LA screw for idling speed. It’s advisable to consult the manual or a professional for precise tuning.

What type of chain oil should be used with the MS 461 Rescue?

Use a high-quality bar and chain oil to ensure effective lubrication of the chain and bar. Stihl recommends using their own brand of chain oil for optimal performance and protection.