MS291 Chain Size Guide (5 Expert Hacks For Woodcutting)

MS291 Chain Size Guide (5 Expert Hacks for Woodcutting)

Choosing the right chain for your MS291 chainsaw can feel like navigating a forest of technical jargon. Don’t worry, I’m here to be your guide. This article will cover everything you need to know, from understanding the essential specifications to optimizing your cutting for various wood types and projects. Let’s dive in!

Understanding the Fundamentals: Chain Specifications for the MS291

Before we get into the nitty-gritty, let’s decode the key specifications that define a chainsaw chain. These are the parameters you’ll need to consider when selecting a chain for your MS291.

Pitch: The distance between any three consecutive rivets divided by two. It’s usually expressed in inches (e.g., 3/8″, .325″). The MS291 typically uses a 3/8″ pitch chain.
Gauge: The thickness of the drive link where it fits into the guide bar groove. It’s also expressed in inches (e.g., .050″, .063″). The MS291 usually requires a .063″ gauge chain.
Drive Links: The number of links that fit into the guide bar groove. This is crucial for matching the chain to the bar length. You’ll need to count these carefully.

Why are these specifications important? Using the wrong pitch, gauge, or drive link count can lead to poor performance, damage to the chainsaw, and even dangerous situations. Imagine trying to fit a square peg into a round hole – that’s what it’s like using the wrong chain.

Hack #1: Finding the Right Chain Length for Your MS291 Bar

The first and most crucial step is determining the correct chain length for your guide bar. The MS291 can accommodate different bar lengths, typically ranging from 16 inches to 20 inches. The longer the bar, the more drive links you’ll need.

How to Determine Your Chain Length:

Check Your Guide Bar: Look for a stamped number on your guide bar. This number usually indicates the recommended chain length in inches.
Consult Your Owner’s Manual: Your MS291 owner’s manual will provide a chart listing the recommended chain length (number of drive links) for each bar size.
Count the Drive Links on Your Old Chain: If you’re replacing an existing chain, carefully count the number of drive links. This is the most accurate way to ensure you get the right replacement.

Example: A 16-inch bar on an MS291 typically requires a chain with 55 drive links, while a 20-inch bar might need 72 drive links. Always double-check these numbers against your specific bar and owner’s manual.

Personal Story: I once made the mistake of assuming the chain length based solely on the bar size. I ended up with a chain that was too short, and it wouldn’t even reach around the bar. A frustrating and time-wasting error! Lesson learned: always verify the drive link count.

Hack #2: Choosing the Right Chain Type for Your Cutting Needs

Not all chainsaw chains are created equal. Different chain types are designed for specific cutting tasks and wood conditions. Understanding these differences will help you optimize your cutting performance and extend the life of your chain.

Full Chisel Chains: These chains have aggressive, square-cornered cutters that provide the fastest cutting speed in clean wood. However, they dull quickly if they come into contact with dirt or debris. I find these work best when felling trees in areas with minimal ground contact.
Semi-Chisel Chains: These chains have rounded cutters that are more durable and forgiving than full chisel chains. They’re a good all-around choice for general woodcutting tasks, especially in dirty or abrasive conditions. These are my go-to for firewood cutting, where there’s often dirt and bark involved.
Low-Profile Chains: These chains have a smaller cutter design that reduces kickback. They’re a good choice for beginners or anyone concerned about safety.
Ripping Chains: These chains are designed for cutting wood along the grain, as opposed to across the grain. They have a unique cutter geometry that produces smoother, more accurate cuts when milling lumber.

Cost Considerations:

The price of chainsaw chains varies depending on the type, brand, and quality. Here’s a general idea of what you can expect to pay:

Basic Chains (Semi-Chisel): $20 – $30
High-Performance Chains (Full Chisel): $30 – $50
Specialty Chains (Ripping): $40 – $60

I’ve found that investing in a higher-quality chain, even if it costs a bit more upfront, can save you money in the long run. They tend to stay sharper longer and require less frequent replacement.

Data Point: According to a survey of chainsaw users conducted by Arbor Age magazine, the average lifespan of a chainsaw chain is 20-40 hours of use, depending on the type of wood being cut and the maintenance practices employed.

Hack #3: Mastering Chain Sharpening for Optimal Performance and Longevity

A dull chainsaw chain is not only inefficient, but it’s also dangerous. It forces you to apply more pressure, which can lead to kickback and increased fatigue. Regularly sharpening your chain is essential for safe and efficient woodcutting.

Methods for Sharpening Your Chain:

Hand Filing: This is the most common and affordable method. It involves using a round file and a filing guide to sharpen each cutter individually. It takes practice to master, but it gives you the most control over the sharpening process.
Electric Chain Sharpeners: These sharpeners use a grinding wheel to quickly sharpen the entire chain. They’re faster and easier to use than hand filing, but they can also remove more material, potentially shortening the life of your chain.
Professional Sharpening: Many hardware stores and chainsaw dealers offer chain sharpening services. This is a good option if you don’t have the time or skills to sharpen your own chain.

Cost of Sharpening:

Hand Filing: The cost of a round file and filing guide is typically around $20 – $30.
Electric Chain Sharpener: Prices range from $50 – $200, depending on the quality and features.
Professional Sharpening: Expect to pay $10 – $20 per chain.

My Sharpening Routine: I prefer hand filing because it gives me the most control and allows me to maintain the correct cutting angles. I typically sharpen my chain after every few tanks of gas, or whenever I notice a decrease in cutting performance.

Tip: When sharpening, always follow the manufacturer’s instructions for the correct filing angles and depth. Incorrect sharpening can damage the cutters and reduce the chain’s lifespan.

Hack #4: Understanding the Impact of Wood Type on Chain Selection and Maintenance

The type of wood you’re cutting has a significant impact on chain wear and performance. Hardwoods like oak and maple are much more abrasive than softwoods like pine and fir.

Hardwoods: Require more frequent sharpening and may benefit from a more durable chain type, such as a semi-chisel chain.
Softwoods: Can be cut more easily with a full chisel chain, but the chain will still need regular sharpening.
Dirty or Abrasive Wood: Cutting wood that is covered in dirt, sand, or bark will dull your chain much faster. Consider using a semi-chisel chain and cleaning the wood before cutting whenever possible.

Cost Implications:

Cutting hardwoods will generally result in higher chain replacement costs due to increased wear and tear. You may also need to invest in more frequent sharpening services or equipment.

Data Point: A study by the Forest Products Laboratory found that cutting oak dulls chainsaw chains approximately twice as fast as cutting pine.

My Experience: I once spent a week cutting seasoned oak for a woodworking project. I was surprised at how quickly my chain dulled, even though I was careful to avoid hitting the ground. I learned that it’s always better to be prepared with extra chains when working with hardwoods.

Hack #5: Budgeting for Chainsaw Chain and Maintenance: A Practical Guide

Effective budgeting is essential for any woodcutting project, whether you’re a professional logger or a weekend firewood enthusiast. Here’s a breakdown of the costs associated with chainsaw chain and maintenance:

Chain Replacement Costs: Estimate the number of chains you’ll need for your project based on the type of wood you’ll be cutting and the estimated hours of use. Factor in the cost of each chain (as discussed earlier).
Sharpening Costs: Decide whether you’ll be sharpening your own chains or using a professional service. If you’re sharpening your own chains, factor in the cost of sharpening equipment (files, guides, or an electric sharpener). If you’re using a professional service, estimate the number of times you’ll need to sharpen your chains and multiply by the cost per sharpening.
Maintenance Costs: Include the cost of bar oil, which is essential for lubricating the chain and preventing wear. Also, consider the cost of occasional repairs to the guide bar or other chainsaw components.
Contingency Fund: It’s always a good idea to set aside a contingency fund to cover unexpected costs, such as a broken chain or a damaged guide bar.

Example Budget:

Let’s say you’re planning to cut 10 cords of firewood, primarily hardwood. Here’s a sample budget:

Chains: 2 chains x $35/chain = $70
Sharpening: 5 sharpenings x $15/sharpening = $75 (assuming professional sharpening)
Bar Oil: 2 gallons x $15/gallon = $30
Contingency: $50
Total Estimated Cost: $225

Cost Optimization Tips:

Buy Chains in Bulk: You can often save money by purchasing chains in bulk.
Maintain Your Chainsaw Properly: Regular cleaning and lubrication will extend the life of your chain and other components.
Sharpen Your Chains Regularly: A sharp chain cuts more efficiently and reduces wear and tear.
Avoid Cutting Dirty Wood: Clean the wood before cutting whenever possible to reduce chain dulling.
Consider Renting a Chainsaw: If you only need a chainsaw for occasional use, renting may be more cost-effective than buying and maintaining your own.

Global Considerations:

The cost of chainsaw chains and maintenance can vary significantly depending on your location. In some regions, chainsaw parts and services may be more expensive due to import duties, transportation costs, or limited availability. It’s always a good idea to research local prices and availability before starting your woodcutting project.

Data Point: According to the Food and Agriculture Organization of the United Nations (FAO), fuelwood prices vary widely across the globe, ranging from less than $50 per cord in some developing countries to over $300 per cord in some developed countries. This variation reflects differences in labor costs, transportation costs, and the availability of fuelwood resources.

Personal Story: I once worked on a logging project in a remote area where chainsaw parts were scarce and expensive. We had to be extra careful to maintain our equipment and avoid unnecessary wear and tear. We also learned to be resourceful and improvise repairs whenever possible.

Advanced Considerations: Chain Geometry and Cutting Performance

Beyond the basic specifications, there are other factors that can affect chain performance, such as cutter geometry and chain design.

Cutter Geometry: The shape and angle of the cutters can influence cutting speed, smoothness, and the amount of vibration produced.
Chain Design: Some chains are designed with features that reduce kickback, improve oiling, or enhance chip ejection.

Understanding these advanced features can help you choose a chain that is best suited for your specific needs and preferences.

Example: Some chains have a “bumper drive link” that reduces the risk of kickback by preventing the chain from grabbing the wood too aggressively. These chains are a good choice for beginners or anyone concerned about safety.

Conclusion: Mastering the Art of Chain Selection for Your MS291

Choosing the right chain size for your MS291 is a critical step in ensuring safe and efficient woodcutting. By understanding the fundamental specifications, selecting the appropriate chain type, mastering chain sharpening, and budgeting effectively, you can optimize your cutting performance and extend the life of your equipment.

Remember, the best chain for your MS291 depends on your specific needs and the type of wood you’ll be cutting. Don’t be afraid to experiment with different chain types and find what works best for you. And always prioritize safety by wearing appropriate protective gear and following the manufacturer’s instructions.

Actionable Takeaways:

Determine the correct chain length (drive link count) for your guide bar.
Choose the appropriate chain type based on the type of wood you’ll be cutting and your skill level.
Master chain sharpening to maintain optimal performance and extend chain life.
Budget effectively for chain replacement, sharpening, and maintenance.
Prioritize safety by wearing appropriate protective gear and following the manufacturer’s instructions.

Now, armed with this knowledge, you can confidently tackle your next woodcutting project with your MS291, knowing you’ve chosen the right chain for the job. Happy cutting!

MS291 Chain Size Guide (5 Expert Hacks for Woodcutting)