Stihl FS 500 FS 550 Instruction Manual

Pages 90

Year 2008

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of 90

Stihl FS 500 FS 550 Specification

The Stihl FS 500 and FS 550 are robust, professional-grade brushcutters designed for demanding landscaping and agricultural tasks. Both models are equipped with a powerful 2-stroke engine, offering high torque and efficiency for tackling dense vegetation. The FS 500 features a 2.4 kW engine, while the FS 550 boasts a slightly more powerful 2.8 kW engine, providing superior cutting performance. These machines are designed with a large fuel tank capacity of approximately 0.99 liters, ensuring extended operating times without frequent refueling.

The ergonomic design includes a bike handle, enhancing maneuverability and reducing operator fatigue during prolonged use. Both models feature a multi-function control handle that integrates all key controls, allowing for easy operation and improved safety. The anti-vibration system effectively minimizes vibrations transmitted to the user, ensuring a more comfortable experience.

The Stihl FS 500 and FS 550 are equipped with a robust gearbox and a solid drive shaft, ensuring durability and reliability even under heavy-duty conditions. The cutting attachment can be swapped between a variety of blades and trimmer heads, offering versatility for different tasks, from trimming grass to clearing thick brush and small trees. Additionally, the FS 550 includes a reinforced fuel tank and a heavy-duty air filter, enhancing its suitability for harsh environments.

Overall, these brushcutters are engineered for high performance and durability, making them ideal for professional users requiring reliable equipment for intensive clearing tasks. With their powerful engines and ergonomic features, the Stihl FS 500 and FS 550 provide efficient and comfortable operation for a range of challenging outdoor applications.

Stihl FS 500 FS 550 F.A.Q.

How do I start the Stihl FS 500 FS 550 brush cutter?

To start the Stihl FS 500 FS 550, ensure the choke is engaged, the fuel tank is filled, and the switch is in the 'on' position. Pull the starter rope until the engine fires.

What type of fuel mix is required for the Stihl FS 500 FS 550?

The Stihl FS 500 FS 550 requires a 50:1 fuel mixture using unleaded gasoline and a high-quality 2-stroke engine oil.

How can I troubleshoot the engine not starting?

Check the fuel level, ensure the spark plug is clean and functional, verify that the air filter is not clogged, and confirm the choke is correctly set.

What maintenance is required for the air filter?

Regularly inspect the air filter for dirt and debris. Clean it with warm soapy water, rinse thoroughly, and allow it to dry completely before reinstalling.

How do I change the cutting blade on the Stihl FS 500 FS 550?

To change the cutting blade, disconnect the spark plug, use the tool provided to remove the blade nut, replace the blade, and secure the nut tightly.

Why is the engine running rough or stalling?

An engine running rough or stalling may be due to a dirty air filter, old or incorrect fuel mixture, or a clogged spark arrestor. Check and clean each component as necessary.

How often should I replace the spark plug?

The spark plug should be inspected and replaced if necessary after every 100 hours of operation. Use the specified spark plug type recommended in the manual.

What should I do if the engine overheats?

If the engine overheats, turn it off immediately, allow it to cool, check for blockages in the cooling fins, and ensure the air filter and exhaust are clean.

How do I properly store the Stihl FS 500 FS 550?

For long-term storage, empty the fuel tank, clean the unit thoroughly, and store it in a dry, cool place away from direct sunlight.

Can I use alternative cutting attachments with the Stihl FS 500 FS 550?

Only use cutting attachments that are specifically designed for and compatible with the Stihl FS 500 FS 550, as specified in the user manual, to ensure safety and performance.