Stihl FS 300 FS 350 FS 400 FS 450 FS 480 Instruction Manual

Stihl FS 300 FS 350 FS 400 FS 450 FS 480 manual cover

Pages 98

Year 2008

Language(s)

of 98

Stihl FS 300 FS 350 FS 400 FS 450 FS 480 Specification

The Stihl FS series, including models FS 300, FS 350, FS 400, FS 450, and FS 480, represents robust brushcutters designed for demanding professional use. These models are equipped with powerful 2-stroke engines, delivering high torque and ensuring efficient cutting performance across varied vegetation types. The FS 300 and FS 350 models feature engines with a displacement of around 30.8 cc, producing approximately 1.3 kW of power, making them suitable for medium-duty clearing tasks. Moving up the range, the FS 400, FS 450, and FS 480 models boast larger displacements of approximately 40.2 cc to 48.7 cc, with power outputs ranging from 1.9 kW to 2.2 kW, catering to heavy-duty professional applications.

All models in the FS series are designed with ergonomic considerations, incorporating anti-vibration systems to minimize operator fatigue during extended use. The bicycle-style handlebars provide excellent maneuverability and control, enhancing precision during operation. These brushcutters are constructed with durable materials, ensuring longevity and reliability in harsh working conditions. The incorporation of a multi-function control handle simplifies operation, while the large fuel tank capacity supports longer working intervals without frequent refueling. Each model is compatible with an array of cutting attachments, including metal blades and nylon line heads, offering versatility for different cutting requirements. The Stihl FS series is engineered to deliver powerful performance, user comfort, and adaptability, making it an ideal choice for professional landscapers and forestry workers seeking reliable equipment for their vegetation management needs.

Stihl FS 300 FS 350 FS 400 FS 450 FS 480 F.A.Q.

How do I start the Stihl FS 300 brushcutter?

To start the Stihl FS 300, ensure the machine is on a flat surface. Set the choke lever to the closed position, press the fuel pump bulb several times until fuel is visible, set the throttle to the start position, and pull the starter rope until the engine fires. Once it starts, open the choke.

What type of fuel mixture should be used for the FS 350?

The Stihl FS 350 requires a 50:1 fuel mixture, which is 50 parts gasoline to 1 part Stihl 2-stroke engine oil. Make sure to use fresh, unleaded gasoline with a minimum octane rating of 89.

How do I replace the trimmer line on an FS 400?

To replace the trimmer line on the FS 400, first remove the spool from the trimmer head. Cut two pieces of nylon line to the recommended length, insert them into the spool, wind them evenly in the direction of the arrows, and reattach the spool to the trimmer head.

What regular maintenance should be performed on the FS 450?

Regular maintenance for the FS 450 includes checking and cleaning the air filter, inspecting the spark plug and replacing if necessary, checking the fuel system for leaks, and lubricating the gearhead. Always refer to the user manual for detailed instructions.

Why is my FS 480 engine not running smoothly?

If the FS 480 engine is not running smoothly, it could be due to a dirty air filter, a clogged fuel filter, or a fouled spark plug. Clean or replace these components as required. Also, check the fuel mixture and ensure there is no air leakage in the fuel lines.

How can I adjust the carburetor on my FS 300?

To adjust the carburetor on the FS 300, locate the adjustment screws marked L (Low), H (High), and LA (Idle Speed). Adjust the L screw for low-speed performance, the H screw for high-speed performance, and the LA screw for idle speed. Consult the manual for specific turning instructions.

What safety precautions should be taken when using the FS 350?

When using the FS 350, wear protective gear including safety glasses, gloves, long pants, and hearing protection. Keep bystanders at a safe distance and be aware of the surroundings to avoid objects that could be thrown by the trimmer.

How do I clean the air filter on an FS 400?

To clean the air filter on the FS 400, remove the air filter cover, take out the filter, and wash it with warm, soapy water. Rinse thoroughly and let it dry completely before reinstalling. Never operate the trimmer without the air filter in place.

What could cause the FS 450 to have low power output?

Low power output on the FS 450 can be caused by a dirty air filter, clogged fuel filter, or a worn spark plug. Ensure the fuel mixture is correct and examine the exhaust for any blockages. Clean or replace components as needed.

How frequently should the gearhead of the FS 480 be lubricated?

The gearhead of the FS 480 should be lubricated approximately every 25 hours of operation. Use Stihl gear lubricant to ensure optimal performance and longevity of the components.