Replacement Chain For Stihl MS170 (5 Expert Tips For Smooth Cutting)

An Opportunity for Smoother Cuts: Mastering Your Stihl MS170 with the Right Chain

I’ve spent countless hours in the woods, felling trees, limbing branches, and processing wood. One thing I’ve learned is that a chainsaw is only as good as its chain. But even the best chainsaw can struggle with a dull or incorrect chain. That’s why I’ve put together this guide – to help you unlock the full potential of your Stihl MS170 by choosing the right replacement chain and maintaining it for smooth, efficient cutting. Let’s dive in!

Understanding Your Stihl MS170 and Its Chain Needs

Before we get into specific chain recommendations, it’s crucial to understand the Stihl MS170’s capabilities and limitations. It’s a lightweight chainsaw designed for occasional use, making it ideal for homeowners and those new to chainsaw operation.

Engine Size: Typically around 30.1 cc, providing sufficient power for smaller tasks.
Bar Length: Usually comes with a 16-inch bar, but can sometimes accommodate a 14-inch bar. Always check your owner’s manual.
Chain Type: Commonly uses a low-profile, 3/8″ pitch chain. This is important for finding the correct replacement.

Choosing the right chain depends on matching these specifications. Using the wrong chain can damage your chainsaw and create a safety hazard.

Why Chain Choice Matters: Performance, Safety, and Longevity

The chain is the heart of your chainsaw. The right chain not only makes cutting easier but also significantly improves safety and extends the life of your Stihl MS170.

Performance: A sharp, well-suited chain cuts through wood with less effort, reducing strain on the engine and operator.
Safety: A dull or incorrect chain can cause kickback, a dangerous situation where the chainsaw jumps back towards the user. A sharp chain reduces this risk.
Longevity: A properly maintained chain reduces wear and tear on the bar, sprocket, and engine, extending the life of your chainsaw.

I’ve seen firsthand how a simple chain swap can transform a struggling chainsaw into a cutting machine. It’s an investment in both your safety and the lifespan of your equipment.

Expert Tip 1: Identifying the Correct Chain Specifications

This is the most critical step. Buying the wrong chain is like putting the wrong fuel in your car – it simply won’t work. Here’s how to ensure you get the right chain for your Stihl MS170:

Pitch: The distance between any three consecutive rivets divided by two. The MS170 typically uses a 3/8″ pitch chain.
Gauge: The thickness of the drive links that fit into the guide bar groove. The MS170 usually requires a .050″ gauge chain.
Drive Link Count: The number of drive links in the chain. This is specific to the bar length you’re using. You’ll need to count the drive links on your current chain or consult your owner’s manual. A 16-inch bar typically requires around 55 drive links, but always verify.

Practical Tip: I always recommend taking your old chain with you when purchasing a replacement. This allows you to visually compare the pitch, gauge, and drive link count.

Case Study: I once helped a neighbor who was struggling to cut firewood with his MS170. He’d bought a replacement chain that he thought was the right one, but it turned out to have the wrong gauge. The chain wouldn’t sit properly in the guide bar, causing excessive vibration and poor cutting performance. After identifying the correct gauge, his chainsaw worked like new.

Takeaway: Double-check the pitch, gauge, and drive link count before purchasing a replacement chain. Your owner’s manual is your best friend here.

Expert Tip 2: Choosing the Right Chain Type for Your Needs

Not all chains are created equal. Different chain types are designed for different cutting tasks and wood types. Here are a few common types and their suitability for the Stihl MS170:

Low-Profile Chain (Recommended): This is the most common type for the MS170. It’s designed for safety and ease of use, making it ideal for homeowners and occasional users. It has a smaller cutter and a shallower cutting angle, reducing the risk of kickback.
Full Chisel Chain (Not Recommended for Beginners): This chain has a more aggressive cutter and a sharper cutting angle, resulting in faster cutting. However, it’s also more prone to kickback and requires more experience to use safely. I wouldn’t recommend this for the MS170, especially if you’re a beginner.
Semi-Chisel Chain (A Decent Option): This is a good compromise between low-profile and full chisel. It offers a good balance of cutting speed and safety. It’s more forgiving than a full chisel chain but still cuts faster than a low-profile chain.

Wood Type Considerations:

Softwoods (Pine, Fir, Spruce): Low-profile and semi-chisel chains work well.
Hardwoods (Oak, Maple, Hickory): Semi-chisel chains are generally preferred for their durability.

Personal Story: I remember trying to cut through a particularly knotty oak log with a dull low-profile chain. It was a frustrating experience, taking far longer than it should have. Switching to a sharp semi-chisel chain made a world of difference.

Takeaway: For most Stihl MS170 users, a low-profile or semi-chisel chain is the best choice. Consider the type of wood you’ll be cutting when making your decision.

Expert Tip 3: Sharpening Your Chain Like a Pro

A dull chain is a dangerous chain. Sharpening your chain regularly is essential for safety, performance, and longevity. Here’s how to do it:

Tools You’ll Need:
- Chainsaw file (typically 5/32″ for the MS170)
- File guide (to maintain the correct angle)
- Depth gauge tool
- Gloves
- Vise (optional, but recommended for easier sharpening)
Sharpening Procedure:
1. Secure the chainsaw bar in a vise (if using).
2. Engage the chain brake.
3. Place the file guide on the chain, aligning it with the cutter.
4. Using smooth, even strokes, file each cutter from the inside out, maintaining the correct angle (usually 30 degrees).
5. File each cutter the same number of strokes to ensure consistent sharpening.
6. Check the depth gauges and file them down if necessary, using the depth gauge tool.
7. Repeat for all cutters on the chain.
Frequency: Sharpen your chain every time you refuel, or more often if you’re cutting dirty or abrasive wood.

Original Insight: I’ve found that using a file guide is crucial for maintaining the correct sharpening angle. Without it, it’s easy to round off the cutters, reducing their effectiveness.

Actionable Metric: A properly sharpened chain should produce small, uniform wood chips. If you’re seeing sawdust instead of chips, your chain is likely dull.

Takeaway: Sharpening your chain is a skill that takes practice, but it’s well worth the effort. Invest in quality sharpening tools and learn the proper technique.

Expert Tip 4: Maintaining Your Chain and Guide Bar

Proper maintenance extends the life of your chain and guide bar, saving you money in the long run. Here’s what you need to do:

Chain Lubrication: Use a high-quality bar and chain oil. Keep the oil reservoir full and check it frequently. Proper lubrication reduces friction and wear. I recommend a petroleum-based oil with tackifiers to help it stick to the chain.
Chain Tension: Check the chain tension before each use. The chain should be snug against the bar but still able to be pulled around by hand. Too loose, and it can derail. Too tight, and it can overheat and break.
Guide Bar Maintenance:
- Clean the guide bar groove regularly with a scraper or screwdriver to remove sawdust and debris.
- Check the guide bar for wear and burrs. Remove any burrs with a file.
- Flip the guide bar periodically to distribute wear evenly.
Chain Cleaning: Periodically clean your chain with a solvent to remove pitch and sap.

Real-World Example: I once neglected to clean the guide bar on my chainsaw, and it became clogged with sawdust. This caused the chain to overheat and eventually break. A little preventative maintenance would have saved me the cost of a new chain.

Takeaway: Regular maintenance is key to keeping your chain and guide bar in good condition. Lubricate, tension, clean, and inspect them regularly.

Expert Tip 5: Safety First: Protecting Yourself and Your Equipment

Chainsaws are powerful tools, and safety should always be your top priority. Here are some essential safety tips:

Wear Appropriate Safety Gear:
- Safety glasses or a face shield
- Hearing protection
- Gloves
- Chainsaw chaps or pants
- Steel-toed boots
Read the Owner’s Manual: Familiarize yourself with the chainsaw’s operation and safety features.
Maintain a Safe Distance: Keep bystanders at least 50 feet away from the cutting area.
Be Aware of Kickback: Understand the causes of kickback and how to avoid it.
Never Cut Above Shoulder Height: This increases the risk of losing control of the chainsaw.
Don’t Cut in Unsafe Conditions: Avoid cutting in wet, windy, or icy conditions.
Use Proper Cutting Techniques: Learn and practice safe cutting techniques.
Inspect Your Chainsaw Regularly: Check for loose parts, damaged components, and leaks.
Store Your Chainsaw Safely: Drain the fuel tank and store the chainsaw in a safe, dry place.

Original Research Finding: Studies have shown that wearing appropriate safety gear can significantly reduce the risk of chainsaw injuries.

Takeaway: Chainsaw safety is not optional. Always wear appropriate safety gear, follow safe cutting practices, and maintain your equipment properly.

Beyond the Basics: Advanced Chain Considerations

For those looking to optimize their Stihl MS170’s performance even further, here are a few advanced considerations:

Low-Kickback Chains: These chains are designed with features that reduce the risk of kickback. They’re a good choice for beginners or anyone concerned about safety.
Carbide-Tipped Chains: These chains have carbide-tipped cutters that are more durable and stay sharp longer than standard steel cutters. They’re ideal for cutting dirty or abrasive wood. However, they require specialized sharpening tools.
Chain Brands: While Stihl chains are generally excellent, other reputable brands like Oregon and Husqvarna also offer compatible chains for the MS170. Experiment to find what works best for you.

Challenges and Contexts for Small-Scale Loggers and Firewood Producers

I understand that many of you are small-scale loggers or firewood producers operating on a budget. Here are a few tips to help you get the most out of your Stihl MS170:

Buy in Bulk: Purchase chains and bar oil in bulk to save money.
Sharpen Regularly: A sharp chain is more efficient and reduces fuel consumption.
Maintain Your Equipment: Regular maintenance prevents costly repairs.
Shop Around for Deals: Compare prices from different retailers before making a purchase.
Consider Used Equipment: Buying used chainsaws or equipment can save you money, but be sure to inspect them carefully before purchasing.

Conclusion: Empowering You to Cut with Confidence

Choosing the right replacement chain for your Stihl MS170 is an investment in your safety, performance, and the longevity of your equipment. By following these expert tips, you can unlock the full potential of your chainsaw and cut with confidence. Remember to prioritize safety, maintain your equipment regularly, and always choose the right chain for the job. Now, get out there and make some sawdust!