Stihl FS 311 Instruction Manual

Pages 112

Year 2020

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of 112

Stihl FS 311 Specification

The Stihl FS 311 is a robust and efficient brushcutter designed for professional use, offering an excellent balance of power and user comfort. It is equipped with a high-performance 36.3 cc 4-MIX® engine, which combines the benefits of a two-stroke and four-stroke engine, delivering ample power with lower emissions and reduced fuel consumption. This engine also provides a smoother operation with less vibration, enhancing user experience during prolonged periods of use.

The FS 311 features a straight shaft design, allowing for greater reach and precision in trimming and clearing tasks. Its ergonomic bike handle design ensures comfortable handling and better control, especially in extensive work environments. The tool is fitted with a multi-function control handle which allows for easy access to all the controls without needing to adjust grip, contributing to a more streamlined and efficient operation.

With a total weight of approximately 7.2 kg (15.9 lbs), the FS 311 is designed to be lightweight yet durable, making it suitable for demanding tasks. It includes a robust cutting attachment, capable of handling dense vegetation and thick brush with ease. The brushcutter also incorporates an anti-vibration system to minimize operator fatigue.

Furthermore, the FS 311 comes with a translucent fuel tank, allowing users to easily monitor fuel levels, thus preventing interruptions during use. The simplified starting procedure ensures quick and reliable starting, even in challenging conditions. This brushcutter is engineered for easy maintenance and long service life, making it a dependable choice for professional landscapers and groundskeepers. With its combination of power, efficiency, and ergonomic design, the Stihl FS 311 stands out as a reliable tool for heavy-duty vegetation management.

Stihl FS 311 F.A.Q.

What is the correct fuel mixture for the Stihl FS 311?

The Stihl FS 311 requires a fuel mixture of 50:1, which is 50 parts unleaded gasoline to 1 part 2-stroke engine oil.

How do I replace the trimmer line on the Stihl FS 311?

To replace the trimmer line, first turn off the engine and disconnect the spark plug. Remove the trimmer head by unscrewing it. Replace the old line with a new line of the correct diameter, following the direction of the arrows on the spool.

How often should I clean the air filter on the Stihl FS 311?

The air filter should be checked and cleaned after every 10 hours of operation. Replace it if it shows signs of excessive wear or damage.

What should I do if the Stihl FS 311 won't start?

If the FS 311 won't start, check the fuel level and ensure the fuel is fresh. Inspect the spark plug and clean or replace it if necessary. Also, check the air filter and clean it if it's dirty.

How do I adjust the carburetor on the Stihl FS 311?

To adjust the carburetor, locate the adjustment screws marked 'L', 'H', and 'LA'. Turn the 'L' screw for low speed, the 'H' screw for high speed, and the 'LA' screw for idling, following the detailed instructions in the user manual for precise settings.

What type of cutting attachments can be used with the Stihl FS 311?

The Stihl FS 311 can use a variety of cutting attachments, including metal blades for dense vegetation and nylon line for trimming grass. Always ensure the attachment is compatible and properly installed.

How do I maintain the gearbox on the Stihl FS 311?

The gearbox should be lubricated with Stihl gear lubricant every 25 hours of use. Clean the area around the gearbox and remove the filler plug to add lubricant.

Why is my Stihl FS 311 vibrating excessively?

Excessive vibration can be caused by an unbalanced or damaged cutting attachment. Check that the attachment is correctly installed and inspect it for any damage. Replace it if necessary.

How do I store the Stihl FS 311 for the winter?

To store the FS 311, clean it thoroughly and empty the fuel tank. Run the engine until it stops to clear any fuel from the carburetor. Store the unit in a dry place, away from direct sunlight.

What are the safety precautions for using the Stihl FS 311?

Always wear protective clothing, including gloves, goggles, and ear protection. Be aware of your surroundings and avoid using the trimmer near people or animals. Follow all safety instructions provided in the user manual.