Stihl Brush Blade Kit Tips For FS70 (Expert Mounting Guide)

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Stihl Brush Blade Kit Tips for FS70: Expert Mounting Guide

What makes the world of wood processing so fascinating is its blend of raw power and meticulous precision. It’s not just about felling trees; it’s about understanding the wood, respecting the tool, and executing the job with both efficiency and safety. Today, I’m diving deep into the Stihl Brush Blade Kit, specifically tailored for the FS70 model. This isn’t just a “how-to” guide; it’s a journey into optimizing your brushcutter for peak performance. I’ll share my experiences, insights, and a few tricks I’ve learned over the years to help you mount this kit like a seasoned pro.

Understanding the User Intent

Before we get started, let’s clarify the user intent behind searching for “Stihl Brush Blade Kit Tips for FS70 (Expert Mounting Guide).” Users are likely looking for:

Step-by-step instructions: A clear guide on how to physically install the brush blade kit.
Model-specific advice: Information tailored to the FS70 Stihl brushcutter.
Expert insights: Tips and tricks beyond the basic instructions, potentially from experienced users.
Troubleshooting: Solutions to common problems encountered during installation.
Safety information: Guidance on using the brush blade safely.
Performance Optimization: Ways to maximize the effectiveness of the brush blade.

My Personal Journey with Brushcutters

I remember the first time I used a brushcutter. It was a hand-me-down from my grandfather, an old, temperamental machine that required more wrestling than actual cutting. But it taught me a valuable lesson: the right tool, properly maintained and used with skill, can transform back-breaking labor into efficient work. Over the years, I’ve worked with countless brushcutters, from small homeowner models to professional-grade machines. The Stihl FS70 holds a special place because of its balance of power and maneuverability, making it a favorite for both small-scale clearing and more demanding tasks. The brush blade kit elevates this tool to another level.

Why Choose a Brush Blade Kit?

Brush blades are a game-changer when dealing with thick brush, saplings, and dense vegetation. Unlike string trimmers, which rely on spinning nylon line, brush blades use sharpened steel to slice through tough obstacles. This offers several advantages:

Increased Cutting Power: Blades can handle thicker stems and denser growth.
Greater Efficiency: You can clear larger areas faster.
Reduced Line Breakage: No more stopping to reload string every few minutes.
Enhanced Durability: Blades last longer than trimmer line, especially in abrasive conditions.

The Stihl FS70: A Brief Overview

The Stihl FS70 is a lightweight, yet powerful brushcutter designed for a range of applications. It’s known for its:

Fuel Efficiency: Stihl engines are renowned for their low fuel consumption.
Easy Starting: The FS70 typically starts easily, even after periods of inactivity.
Comfortable Handling: Its ergonomic design reduces fatigue during extended use.
Versatility: Compatible with various cutting attachments, including brush blades.

Unboxing the Brush Blade Kit: What to Expect

When you purchase a Stihl Brush Blade Kit, you should find the following components:

The Brush Blade: Typically an 8-tooth or circular saw type blade.
Mounting Hardware: Includes the blade holder, thrust washer, rider plate, and nut.
Deflector: A guard to protect you from flying debris.
Instructions: A user manual outlining the installation process.

Essential Tools for Mounting the Brush Blade Kit

Before you begin, gather these essential tools:

Wrench: To tighten the nut securing the blade. The size will vary depending on the kit.
Screwdriver: For removing and installing the deflector.
Gloves: To protect your hands.
Eye Protection: Safety glasses or a face shield are crucial.
Work Bench or Stable Surface: To support the brushcutter during installation.
Torque Wrench (Optional but Recommended): For precise tightening.

Step-by-Step Mounting Guide: The Expert Approach

Here’s a detailed, step-by-step guide to mounting the Stihl Brush Blade Kit on your FS70, incorporating expert tips and insights.

Step 1: Safety First – Disconnect the Spark Plug

This is the most important step. Always disconnect the spark plug wire before working on any power equipment. This prevents accidental starting, which can lead to serious injury. Locate the spark plug on the engine and gently pull the wire off the terminal.

Step 2: Remove the Existing Cutting Head

If your FS70 has a string trimmer head or another type of blade attached, remove it. This usually involves:

Locking the Spindle: Most Stihl brushcutters have a spindle lock. Engage it to prevent the shaft from rotating.
Loosening the Nut: Use the appropriate wrench to loosen the nut holding the cutting head in place. Remember, the nut is usually reverse-threaded. That means you’ll need to turn it clockwise to loosen it.
Removing the Head: Once the nut is loose, carefully remove the cutting head.

Expert Tip: If the nut is stuck, try applying penetrating oil and letting it sit for a few minutes. Avoid using excessive force, as you could damage the threads.

Step 3: Inspect the Shaft and Mounting Surface

Before installing the brush blade kit, inspect the shaft and mounting surface for any damage or debris. Clean the area with a wire brush to ensure a smooth, clean surface for the new components.

Expert Tip: Check the threads on the shaft for any signs of wear or damage. If the threads are damaged, the nut may not tighten properly, which could lead to the blade coming loose during operation.

Step 4: Install the Thrust Washer

The thrust washer is a critical component that provides a smooth surface for the blade to rotate against. Place the thrust washer onto the shaft, ensuring it sits flush against the mounting surface.

Expert Tip: Some thrust washers have a specific orientation. Check the instructions to ensure you’re installing it correctly.

Step 5: Install the Rider Plate

The rider plate sits on top of the thrust washer and helps to distribute the load evenly across the blade. Place the rider plate onto the shaft, ensuring it aligns properly with the thrust washer.

Expert Tip: The rider plate should fit snugly onto the shaft. If it’s too loose, it could vibrate during operation, which could damage the blade or the brushcutter.

Step 6: Mount the Brush Blade

Carefully place the brush blade onto the shaft, aligning the center hole with the shaft. Ensure the blade sits flush against the rider plate.

Expert Tip: Always wear gloves when handling brush blades. The teeth are extremely sharp and can easily cut you.

Step 7: Secure the Blade with the Blade Holder and Nut

Place the blade holder over the blade and thread the nut onto the shaft. Tighten the nut securely using the appropriate wrench.

Expert Tip: Use a torque wrench to tighten the nut to the manufacturer’s recommended torque specification. This ensures the blade is properly secured without over-tightening, which could damage the threads. The correct torque specification can typically be found in the Stihl FS70 user manual or the brush blade kit instructions. If you don’t have access to a torque wrench, tighten the nut as tightly as you can by hand, then give it an extra quarter turn.

Step 8: Install the Deflector

The deflector is a safety guard that protects you from flying debris. Attach the deflector to the brushcutter housing using the screws provided.

Expert Tip: Make sure the deflector is securely attached and properly positioned. It should cover the area behind the blade to prevent debris from being thrown towards you.

Step 9: Reconnect the Spark Plug

Reconnect the spark plug wire to the spark plug. This completes the installation process.

Step 10: Test the Installation

Before using the brushcutter, start the engine and let it idle for a few minutes. Check for any unusual noises or vibrations. If everything sounds and feels normal, carefully test the blade by cutting through some light vegetation.

Expert Tip: If you notice any problems, stop the engine immediately and re-inspect the installation. Don’t use the brushcutter until you’re sure everything is properly installed and functioning correctly.

Common Problems and Troubleshooting

Even with careful installation, you might encounter some common problems. Here’s how to troubleshoot them:

Blade Vibration: This could be caused by a loose nut, a damaged blade, or an improperly installed thrust washer or rider plate. Re-check all the components and tighten the nut to the correct torque specification.
Blade Slippage: If the blade slips during operation, the nut may not be tight enough. Tighten the nut further, but be careful not to over-tighten it.
Excessive Vibration: Excessive vibration can be caused by bent blade. Replace the blade immediately.
Difficulty Starting: If the engine is difficult to start after installing the brush blade kit, make sure the spark plug wire is properly connected. Also, check the fuel level and the air filter.
Debris Accumulation: The blade may clogged if you don’t clean it.

Safety Considerations When Using a Brush Blade

Brush blades are powerful tools that can be dangerous if used improperly. Here are some crucial safety considerations:

Always Wear Safety Gear: This includes eye protection, hearing protection, gloves, long pants, and sturdy boots.
Clear the Area: Before starting, clear the area of any obstacles, such as rocks, branches, or debris.
Maintain a Safe Distance: Keep bystanders at least 50 feet away from the work area.
Use Proper Cutting Techniques: Avoid cutting near the ground, as this can damage the blade. Use a sweeping motion to cut through vegetation.
Be Aware of Kickback: Brush blades can kick back if they hit a solid object. Be prepared for this and maintain a firm grip on the brushcutter.
Inspect the Blade Regularly: Check the blade for damage or wear before each use. Replace the blade if it’s damaged or worn.
Never Modify the Blade: Do not attempt to sharpen or modify the blade yourself. This could weaken the blade and make it more likely to break during operation.
Read the Manual: Always read and understand the user manuals for both the Stihl FS70 and the brush blade kit.

Optimizing Performance: Tips and Tricks

Here are some expert tips to help you get the most out of your Stihl FS70 with the brush blade kit:

Choose the Right Blade: Different blades are designed for different types of vegetation. An 8-tooth blade is ideal for general brush clearing, while a circular saw blade is better for cutting thicker saplings.
Sharpen the Blade Regularly: A sharp blade cuts more efficiently and reduces the risk of kickback. Use a file or a grinder to sharpen the blade, following the manufacturer’s instructions.
Adjust the Harness: A properly adjusted harness will distribute the weight of the brushcutter evenly, reducing fatigue and improving control.
Use the Correct Fuel Mixture: Stihl engines require a specific fuel mixture of gasoline and oil. Use the correct mixture to ensure optimal performance and prolong the life of the engine.
Clean the Air Filter Regularly: A clean air filter allows the engine to breathe properly, improving performance and fuel efficiency.
Store the Brushcutter Properly: When not in use, store the brushcutter in a dry, protected location. Drain the fuel tank before storing the brushcutter for extended periods.

Wood Species and Processing Techniques

Understanding the properties of different wood species can significantly improve your wood processing efficiency and the quality of your firewood. Here’s a brief overview of some common wood species and their characteristics:

Oak: A dense, hardwood that burns long and hot. Ideal for firewood, but can be difficult to split.
Maple: Another dense hardwood that burns well. Easier to split than oak.
Ash: A medium-density hardwood that splits easily and burns cleanly.
Birch: A softwood that burns quickly and produces good heat. Ideal for starting fires.
Pine: A softwood that burns very quickly and produces a lot of smoke. Not ideal for firewood, but can be used for kindling.

When processing firewood, consider these techniques:

Splitting: Use a maul or a hydraulic splitter to split logs into manageable sizes.
Seasoning: Allow firewood to dry for at least six months before burning. This reduces moisture content and improves burning efficiency.
Stacking: Stack firewood in a way that allows for good air circulation. This helps it dry faster.

Case Study: Clearing a Heavily Overgrown Lot

I once worked on a project to clear a heavily overgrown lot that had been neglected for years. The lot was covered in thick brush, saplings, and vines. Using a Stihl FS70 with a brush blade kit, I was able to clear the lot in a matter of days.

Equipment Used:

Stihl FS70 brushcutter
Brush blade kit (8-tooth blade)
Safety gear (eye protection, hearing protection, gloves, long pants, sturdy boots)

Wood Types:

Mixed hardwoods (oak, maple, ash)
Softwoods (pine, cedar)

Safety Considerations:

Cleared the area of obstacles before starting
Maintained a safe distance from bystanders
Used proper cutting techniques
Wore appropriate safety gear

Results:

Successfully cleared the lot of all vegetation
Improved the aesthetic appeal of the property
Increased the property value

Industry Trends and Future Innovations

The wood processing industry is constantly evolving, with new technologies and innovations emerging all the time. Some of the key trends include:

Automation: Automated logging and firewood processing systems are becoming increasingly common.
Sustainable Forestry: There is a growing emphasis on sustainable forestry practices to ensure the long-term health of forests.
Bioenergy: Wood is increasingly being used as a source of renewable energy.
Advanced Materials: New materials are being developed for chainsaw chains, brush blades, and other wood processing tools.

Actionable Takeaways

Here are some actionable takeaways you can apply to your own wood processing or firewood preparation projects:

Invest in Quality Tools: High-quality tools will last longer and perform better.
Prioritize Safety: Always wear appropriate safety gear and follow safe operating procedures.
Understand Wood Properties: Knowing the properties of different wood species will help you process firewood more efficiently.
Maintain Your Equipment: Regular maintenance will prolong the life of your equipment and improve its performance.
Stay Informed: Keep up-to-date on the latest industry trends and innovations.

Conclusion: Mastering the Brush Blade

Mounting a Stihl Brush Blade Kit on your FS70 isn’t just a mechanical task; it’s about understanding the tool, respecting the wood, and committing to safety. By following this expert guide and incorporating the tips I’ve shared, you’ll be well-equipped to tackle even the toughest brush-clearing jobs with confidence and efficiency. Remember, wood processing is a craft that requires patience, skill, and a deep appreciation for the natural world. So, get out there, put these tips into practice, and enjoy the satisfaction of transforming raw wood into something useful and beautiful.