How To Sharpen Stihl Chain Saw: A Complete Tutorial

Do you need to sharpen your Stihl chainsaw? Yes, you absolutely do! A dull chain saw is dangerous and inefficient. This stihl chainsaw sharpening guide will walk you through everything you need to know to keep your Stihl chainsaw cutting like new, whether you’re using chainsaw sharpening tools or a simple file.

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Why Sharpen Your Stihl Chainsaw?

A sharp chainsaw is safer, faster, and prolongs the life of your saw. Dull chains require more pressure, putting strain on the motor and increasing the risk of kickback.

Here’s why chainsaw maintenance tips always include sharpening:

• Safety: Sharp chains reduce the risk of kickback.
• Efficiency: A sharp chain cuts faster and with less effort.
• Longevity: Reduces wear and tear on your chainsaw.
• Fuel Efficiency: A sharp chain requires less engine power.
• Cleaner Cuts: Sharp chains create smoother, cleaner cuts.

Recognizing a Dull Chain

How do you know when your chainsaw needs sharpening? Watch for these signs:

• Sawdust: A sharp chain produces long, stringy chips. A dull chain creates fine sawdust.
• Hard to Push: You have to force the saw through the wood.
• Burning Smell: The chain is creating friction instead of cutting efficiently.
• Crooked Cuts: The chain pulls to one side.
• Excessive Vibration: The saw vibrates more than usual.

Gathering Your Chainsaw Sharpening Tools

Before you begin, gather the necessary tools. Having the right tools makes the job easier and more accurate. Here’s what you’ll need:

• Round File: The correct file size for stihl chain is crucial. (See chart below)
• File Guide: Helps maintain the correct angle for sharpening chainsaw.
• Flat File: For adjusting the stihl chain sharpening depth gauge.
• Depth Gauge Tool: Ensures the depth gauges are properly set.
• Vise or Clamping Device: To secure the chainsaw bar.
• Gloves: To protect your hands.
• Eye Protection: Safety glasses or goggles are essential.
• Stihl Chain Sharpening Kit (Optional): A stihl chain sharpening kit can be very convenient and often includes everything you need.

Determining the Correct File Size for Stihl Chain

The correct file size depends on the pitch of your chain. You can find this information in your chainsaw’s manual or on the chain itself. Here’s a general guide:

Chain Pitch	File Size (inches)	File Size (mm)
1/4″	5/32″	4.0 mm
.325″	3/16″	4.8 mm
3/8″ Low Profile	5/32″ or 7/32″	4.0 mm or 5.5 mm
3/8″	7/32″	5.5 mm
.404″	13/64″	5.2 mm

Always double-check your chainsaw manual for the recommended file size.

Step-by-Step: Sharpening Chainsaw with a File

This section provides a detailed guide on sharpening chainsaw with a file. It’s a cost-effective and reliable method.

Step 1: Securing the Chainsaw

• Engage the chain brake.
• Secure the chainsaw bar in a vise or clamping device. This will keep it stable while you work. Make sure it is firmly fixed but does not bend.

Step 2: Identifying the Correct Angle for Sharpening Chainsaw

• Each cutter has markings indicating the correct filing angle for sharpening chainsaw. This angle is crucial for efficient cutting. Check your chainsaw’s manual for the specific angle for your chain. Usually between 25 and 35 degrees.

Step 3: Sharpening with a File

• Place the round file in the cutter, using the file guide to maintain the correct angle.
• File from the inside of the cutter outwards.
• Apply gentle, consistent pressure.
• Use smooth, even strokes.
• Count your strokes. The objective is to sharpen each tooth equally.
• Repeat for each cutter, maintaining the same number of strokes and angle.
• Pay attention to the shortest cutter – this is your guide for how much to file each tooth. You want each tooth to be as long (and as sharp) as the shortest.

Step 4: Adjusting the Stihl Chain Sharpening Depth Gauge

• The stihl chain sharpening depth gauge controls how much the cutter bites into the wood. As you sharpen the cutters, the depth gauges may need adjustment.
• Use the depth gauge tool to check the height of the depth gauges relative to the cutters.
• If the depth gauges are too high, use a flat file to carefully file them down until they are level with the tool. Stihl chain sharpening depth gauge needs to be set correctly to prevent kickback and ensure smooth cutting.
• After filing, round off the front of the depth gauge with the flat file.

Step 5: Sharpening the Opposite Side

• Release the chain brake and advance the chain.
• Secure the chainsaw bar again.
• Repeat the sharpening process on the cutters on the opposite side of the chain.
• Ensure you use the same number of strokes and maintain the same angle as you did on the first side.

Step 6: Final Check

• Once you’ve sharpened all the cutters, visually inspect the chain.
• All cutters should be uniform in size and shape.
• The depth gauges should be properly set.

How to Use a Chainsaw Sharpener (Electric)

While sharpening chainsaw with a file is a classic method, an electric chainsaw sharpener offers speed and precision. Here’s a general guide on how to use a chainsaw sharpener:

1. Mount the Sharpener: Securely mount the sharpener to a workbench or stable surface.
2. Adjust Settings: Set the sharpening angle for sharpening chainsaw and depth according to your chain specifications.
3. Position the Chain: Place the chain in the sharpener, aligning the first cutter with the grinding wheel.
4. Sharpen: Lower the grinding wheel onto the cutter, applying gentle pressure. Follow the manufacturer’s instructions for the duration of sharpening.
5. Repeat: Repeat for each cutter, ensuring consistency.
6. Check Depth Gauges: Adjust the stihl chain sharpening depth gauge as needed with a flat file.

Stihl Chain Sharpening Kit: A Convenient Option

A stihl chain sharpening kit offers a convenient all-in-one solution. These kits typically include:

• Round files of various sizes
• A file guide
• A depth gauge tool
• A flat file
• A carrying case

Using a stihl chain sharpening kit ensures you have the correct tools and guides for your Stihl chainsaw.

Other Chainsaw Maintenance Tips

Sharpening is only one aspect of chainsaw maintenance. Here are some additional chainsaw maintenance tips to keep your saw running smoothly:

• Chain Lubrication: Always use the correct chain oil and ensure the oiler is functioning properly.
• Bar Maintenance: Clean the bar regularly and check for wear.
• Air Filter: Clean or replace the air filter regularly.
• Spark Plug: Inspect and replace the spark plug as needed.
• Fuel: Use fresh, high-quality fuel and stabilizer.
• Chain Tension: Maintain proper chain tension. A loose chain can derail, and a tight chain can overheat.

Best Chainsaw Sharpening Method: Choosing What’s Right for You

The best chainsaw sharpening method depends on your experience, budget, and needs.

• File Sharpening: Cost-effective, portable, and suitable for occasional touch-ups. Requires practice to master.
• Electric Sharpener: Faster and more precise, but requires an investment and a power source.
• Professional Sharpening: Guarantees a sharp chain, but can be costly.

Here’s a comparison table:

Method	Cost	Speed	Precision	Portability	Skill Level
File Sharpening	Low	Slow	Moderate	High	Moderate
Electric Sharpener	Moderate	Fast	High	Low	Low
Professional	High	Varies	High	N/A	N/A

Safety First

• Always wear safety glasses and gloves when sharpening your chainsaw.
• Work in a well-lit and ventilated area.
• Disconnect the spark plug wire to prevent accidental starting.
• Be careful when handling sharp tools.

Fathoming Chain Wear

Regular use causes wear on your chainsaw chain. Recognizing the signs of wear and addressing them promptly can extend the life of your chain and improve cutting performance.

Common Signs of Chain Wear

• Rounded Cutter Edges: The sharp edges of the cutters become rounded over time, reducing their cutting efficiency.
• Cracked or Broken Cutters: Severe impacts or prolonged use can cause cutters to crack or break.
• Excessive Chain Stretch: The chain may stretch beyond its recommended length, leading to poor tension and potential derailment.
• Worn Drive Links: The drive links, which engage with the sprocket, can wear down, affecting the chain’s ability to grip and pull.

Addressing Chain Wear

• Replace Worn Chains: If the chain is severely worn or damaged, it’s best to replace it altogether.
• Rotate Chains: If you use multiple chains, rotate them regularly to distribute wear evenly.
• Regular Sharpening: Keeps the cutters sharp and reduces the strain on the chain, prolonging its life.
• Proper Lubrication: Lubrication minimizes friction and wear on all chain components.

Frequently Asked Questions (FAQ)

• How often should I sharpen my chainsaw chain? It depends on how often you use it and the type of wood you’re cutting. As a general rule, sharpen your chain whenever you notice it’s not cutting as efficiently or showing signs of dullness.
• Can I sharpen my chainsaw chain while it’s on the saw? Yes, but it’s safer and easier to remove the chain and secure it in a vise.
• What happens if I don’t sharpen my chainsaw chain? A dull chain will make cutting more difficult, increase the risk of kickback, and put unnecessary strain on your chainsaw.
• How do I prevent my chainsaw chain from dulling quickly? Avoid cutting dirty or sandy wood, keep the chain properly lubricated, and maintain proper chain tension.
• What if I accidentally over-sharpen a cutter? If you accidentally file down a cutter too much, try to match the other cutters to that size. If the difference is too significant, you may need to replace the chain.
• Is it worth buying an electric chainsaw sharpener? If you sharpen your chainsaw frequently, an electric sharpener can save you time and effort.

Sharpening your Stihl chainsaw is an essential part of chainsaw maintenance tips. By following this stihl chainsaw sharpening guide, you can keep your saw cutting efficiently and safely for years to come. Whether you prefer sharpening chainsaw with a file or using a stihl chain sharpening kit, the key is to be consistent and pay attention to detail.