Understanding the STIHL MS 170 Chain Size: Everything You Need to Know

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Understanding the STIHL MS 170 Chain Size: Everything You Need to Know

“Chainsaws may seem straightforward, but when it comes to finding the right chain size for your STIHL MS 170, things can get a bit tricky. Whether you’re replacing an old chain or just trying to optimize performance, understanding chain sizes is key. So, what makes the MS 170 chain unique, and how do you choose the perfect one? Let’s break it all down and cover everything you need to know to keep your chainsaw running like a pro!”

 

Have you ever wondered why the chain size of a chainsaw matters so much? Imagine you’re in the middle of a project, and your chainsaw’s performance starts to lag because you didn’t get the right chain. Frustrating, right? The STIHL MS 170, a popular choice for many, often leaves users puzzled about its chain size. Let’s dive into the details to ensure you get the most out of your tool.

What Makes the STIHL MS 170 So Popular?

The STIHL MS 170 chainsaw is renowned for its reliability and efficiency. It’s lightweight, easy to handle, and perfect for homeowners tackling various tasks like trimming small trees, cutting firewood, or clearing debris after a storm. However, understanding its chain size is crucial to maintaining its top-notch performance.

Decoding the Chain Size: Why It Matters

The chain size of a chainsaw directly affects its cutting ability and overall efficiency. Using the wrong chain can lead to poor performance and even damage the chainsaw. For the STIHL MS 170, the correct chain size ensures smooth operation and longevity of the tool.

Key Specifications of the STIHL MS 170 Chain

  1. Pitch: The pitch of a chainsaw chain is the distance between three consecutive rivets divided by two. For the STIHL MS 170, the pitch is 3/8 inch. This measurement is crucial as it must match the pitch of the sprocket and the guide bar.
  2. Gauge: The gauge of the chain refers to the thickness of the drive links that fit into the guide bar. The STIHL MS 170 has a gauge of .043 inch. A correct gauge ensures the chain fits snugly in the guide bar, reducing the risk of the chain slipping or derailing.
  3. Drive Links: The number of drive links in the chain must match the length of the guide bar. The STIHL MS 170 typically uses a chain with 55 drive links when paired with a 16-inch guide bar.

Why Accurate Chain Size Is Essential

Using the correct chain size is vital for several reasons:

  • Efficiency: A properly sized chain cuts more efficiently, saving time and effort.
  • Safety: A chain that fits well reduces the risk of accidents caused by slippage or derailment.
  • Longevity: Matching the right chain size with your chainsaw helps in extending the life of both the chain and the chainsaw.

Choosing the Right Chain for Your STIHL MS 170

When it’s time to replace the chain on your STIHL MS 170, it’s essential to choose a chain that matches the specifications. Using chains from reputable brands that adhere to these specifications is always a good idea. Here’s a quick guide to help you out:

  1. Identify the Pitch: Ensure the chain pitch is 3/8 inch.
  2. Check the Gauge: The gauge should be .043 inch.
  3. Count the Drive Links: For a 16-inch bar, you’ll need a chain with 55 drive links.

Maintaining Your Chainsaw Chain

Proper maintenance of your chainsaw chain not only extends its life but also ensures your safety. Here are some tips to keep your chain in top condition:

  • Regular Sharpening: Keep the chain sharp to maintain efficient cutting.
  • Proper Tension: Check the chain tension regularly. A loose chain can derail, while an overly tight chain can damage the guide bar.
  • Lubrication: Always keep the chain well-lubricated to reduce friction and wear.

Common Issues with Chainsaw Chains

Even with proper maintenance, you might encounter some common issues with your chainsaw chain. Here’s what to watch out for:

  • Chain Stretch: Over time, chains can stretch, requiring adjustment or replacement.
  • Dull Chain: A dull chain reduces cutting efficiency and can cause the chainsaw to work harder, leading to potential damage.
  • Chain Derailment: This can happen if the chain tension is incorrect or if the chain is worn out.

How to Replace the Chain on Your STIHL MS 170

Replacing the chain on your STIHL MS 170 is straightforward. Here’s a step-by-step guide:

  1. Safety First: Ensure the chainsaw is turned off and the spark plug is disconnected.
  2. Remove the Old Chain: Loosen the tensioning screw and remove the old chain from the guide bar.
  3. Install the New Chain: Place the new chain on the guide bar, ensuring the teeth face the correct direction.
  4. Adjust the Tension: Tighten the tensioning screw until the chain is snug but can still be pulled slightly away from the guide bar.
  5. Check Alignment: Ensure the chain is properly aligned with the sprocket and the guide bar.
  6. Reconnect and Test: Reconnect the spark plug, and test the chainsaw to ensure the chain is operating smoothly.

Frequently Asked Questions about the STIHL MS 170 Chain Size

  1. What size chain does the STIHL MS 170 use?
    • The STIHL MS 170 uses a chain with a 3/8 inch pitch, .043 inch gauge, and typically 55 drive links for a 16-inch guide bar.
  2. Can I use a different brand chain on my STIHL MS 170?
    • Yes, as long as the chain matches the specifications of the STIHL MS 170.
  3. How often should I replace the chain on my STIHL MS 170?
    • Replace the chain when it becomes excessively worn, stretched, or damaged.
  4. What is the best way to sharpen a chainsaw chain?
    • Use a chainsaw file or an electric chain sharpener to maintain the cutting teeth’s sharpness.
  5. Why does my chainsaw chain keep coming off?
    • This can be due to incorrect chain tension, a worn-out chain, or issues with the guide bar.
  6. How can I tell if my chainsaw chain is too tight?
    • A chain that is too tight will be difficult to move by hand and can cause excessive wear on the guide bar and sprocket.
  7. Is it normal for a new chainsaw chain to stretch?
    • Yes, new chains can stretch during the break-in period and may need readjustment.
  8. Can I use a longer bar on my STIHL MS 170?
    • It’s best to stick to the manufacturer’s recommended bar length to ensure optimal performance and safety.
  9. What type of oil should I use for my chainsaw chain?
    • Use bar and chain oil specifically designed for chainsaws to ensure proper lubrication.
  10. How do I store my chainsaw to prevent chain issues?
    • Store your chainsaw in a cool, dry place, and keep the chain well-lubricated to prevent rust and wear.

By understanding and maintaining the correct chain size for your STIHL MS 170, you can ensure your chainsaw remains efficient and safe for all your cutting needs. Whether you’re a seasoned user or a novice, these tips will help you get the most out of your tool. Happy cutting!

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