Stihl FS 45 FS 46 Instruction Manual

Pages 92

Year 2011

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of 92

Stihl FS 45 FS 46 Specification

The Stihl FS 45 and FS 46 are lightweight, versatile trimmers designed for residential lawn maintenance. Both models feature a compact and ergonomic design, offering ease of use and maneuverability, making them ideal for trimming grass and small weeds around the home. The FS 45 is equipped with a 27.2 cc engine, providing sufficient power for light trimming tasks. It utilizes a 2-stroke engine that is air-cooled, ensuring efficient operation and durability. The FS 46, while similar in engine capacity, often includes enhancements in fuel efficiency and emission reduction, aligning with stricter environmental standards. Both trimmers employ a curved shaft design, optimizing user comfort and reach, which is particularly beneficial for extended use.

The cutting head is equipped with a dual-line auto-cut system, allowing for practical line advancement and reduced downtime. The FS 45 and FS 46 are designed to accommodate nylon cutting lines, providing flexibility for various trimming needs. With a fuel tank capacity of approximately 0.33 liters, these trimmers offer a balance between lightweight design and sufficient fuel capacity for tackling standard domestic trimming tasks without frequent refueling.

Both models incorporate Stihl's Easy2Start technology, which simplifies the starting process, reducing the effort needed to pull start the engine. The inclusion of a multi-function control handle centralizes operational controls, enhancing user convenience and safety. Additionally, the machines are designed with a standard vibration reduction system, promoting comfortable operation by minimizing user fatigue during prolonged use. These features make the Stihl FS 45 and FS 46 reliable choices for homeowners seeking efficient and user-friendly lawn maintenance equipment.

Stihl FS 45 FS 46 F.A.Q.

How do I start the Stihl FS 45 trimmer?

To start the Stihl FS 45 trimmer, place it on a flat surface, switch the ignition to "I", press the primer bulb several times, set the choke lever to the closed position, and pull the starter rope until the engine fires. Once it does, move the choke lever to the open position and pull the rope again to start the engine.

What is the correct fuel mixture for the Stihl FS 46?

The correct fuel mixture for the Stihl FS 46 is a 50:1 ratio of unleaded gasoline to two-stroke engine oil. Ensure the gasoline has an octane rating of at least 89 and use high-quality two-stroke oil.

How can I replace the trimmer line on my Stihl FS 45?

To replace the trimmer line, turn off the engine and disconnect the spark plug. Remove the spool by pressing on the tabs or twisting the cap. Cut approximately 10 feet of new line, insert each end into the holes on the spool, and wind the line evenly. Reattach the spool and cap.

What should I do if my Stihl FS 46 won't start?

If your Stihl FS 46 won't start, check the fuel level and ensure it's fresh. Verify the spark plug is clean and properly connected. Inspect the air filter for blockages and clean or replace it if necessary. Also, ensure the choke is in the correct position for starting.

How often should I clean the air filter on the FS 45?

The air filter on the FS 45 should be checked and cleaned after every 10 hours of use. If you operate in dusty conditions, clean it more frequently to maintain optimal performance.

What is the proper way to store my Stihl FS 46 during the off-season?

To store your Stihl FS 46 during the off-season, drain the fuel tank and run the engine until it stops to clear the carburetor. Clean the machine thoroughly, inspect for any damage, and store it in a dry, cool place away from direct sunlight.

How do I adjust the carburetor on my Stihl FS 45?

To adjust the carburetor on your Stihl FS 45, locate the adjustment screws marked L (low speed), H (high speed), and T (idle speed). Turn each screw slightly to adjust the engine performance. It is recommended to have a professional make adjustments to avoid engine damage.

Why is my Stihl FS 46 trimmer line breaking frequently?

Frequent trimmer line breakage can be due to using an incorrect line size, contact with hard surfaces, or a worn-out trimmer head. Ensure you're using the recommended line size and avoid hitting objects like rocks or fences. Inspect and replace the trimmer head if it's worn.

How can I reduce vibration in the FS 45 during operation?

To reduce vibration in the FS 45, ensure all components are tightly secured. Replace any worn or damaged parts like the handle or anti-vibration mounts. Regular maintenance and using balanced trimmer line can also help minimize vibration.

What maintenance should I perform regularly on my Stihl FS 46?

Regular maintenance for the Stihl FS 46 includes cleaning the air filter, checking and replacing the spark plug annually, inspecting the fuel system for leaks, and lubricating the gearbox. Always refer to the user manual for detailed maintenance procedures.