Stihl MS 990 Chainsaw Power (5 Pro Arborist Secrets)

Did you ever stand in awe, watching a seasoned logger effortlessly fell a giant redwood with just a chainsaw? That image, the sheer power and precision, is what the Stihl MS 990 evokes. But the MS 990 is more than just raw power; it’s a tool that, in the right hands, can unlock efficiency and profitability in professional arbor work. Today, I’m diving deep into the Stihl MS 990, revealing five pro arborist secrets to maximizing its power and, critically, understanding the costs associated with owning and operating this beast. We’ll explore everything from initial investment to long-term maintenance, fuel consumption, and even the potential for increased earnings. Let’s get started!

Stihl MS 990 Chainsaw Power: 5 Pro Arborist Secrets

Understanding the Intended Use: More Than Just a Big Saw

The first secret to harnessing the MS 990’s power isn’t about the saw itself, but about understanding its intended use. This isn’t your weekend warrior’s chainsaw. It’s designed for felling large timber, milling, and tackling demanding forestry tasks. Using it for smaller jobs is like using a sledgehammer to crack a walnut – inefficient and potentially damaging.

• My Experience: I once saw a guy trying to use an MS 990 to prune small branches. The saw was completely overkill, and he ended up damaging the tree and exhausting himself. It taught me a valuable lesson about matching the tool to the task.

• Data Point: Stihl’s official documentation clearly outlines the MS 990’s ideal applications: heavy timber harvesting, milling large logs, and professional forestry work.

• Cost Implication: Using a less powerful (and less expensive) saw for smaller jobs saves on fuel, maintenance, and wear and tear on the MS 990. It also reduces the risk of accidental damage and injury.

Secret #1: Mastering the Felling Cut – Precision and Efficiency

The MS 990’s power shines when felling large trees. However, brute force alone won’t cut it (pun intended!). Mastering the felling cut is crucial for safety, efficiency, and maximizing timber yield. This involves understanding tree lean, hinge wood, and proper cutting techniques.

• Pro Tip: Always scout the area, identify escape routes, and assess the tree’s condition before making any cuts.

• Technique: The bore cut, combined with a precise hinge cut, allows for controlled felling, minimizing timber waste.

• Cost Savings: Controlled felling reduces the risk of damaging the timber or the surrounding environment, minimizing potential fines and maximizing the value of the harvested wood. A well-placed fell can also significantly reduce the amount of bucking required, saving time and fuel.

• Example Calculation: A poorly felled tree can result in a 10% loss in usable timber. If you’re harvesting 1000 board feet of lumber at $3/board foot, that’s a $300 loss due to a single mistake.

Secret #2: Chain Sharpening and Maintenance – The Key to Longevity

A dull chain on an MS 990 is like a Ferrari with flat tires – all power, no performance. Regular and precise chain sharpening is essential for maintaining cutting efficiency and preventing premature wear on the saw.

• My Story: I once neglected my chain sharpening, and the MS 990 started bogging down even in relatively soft wood. After a proper sharpening, it was like a new saw again. The difference in cutting speed and fuel consumption was remarkable.

• Sharpening Frequency: As a general rule, sharpen your chain every time you refuel or when you notice a decrease in cutting performance.

• Maintenance Schedule: Regular maintenance, including air filter cleaning, spark plug replacement, and lubrication, is crucial for extending the life of the MS 990.

• Cost Analysis: Neglecting chain sharpening and maintenance leads to increased fuel consumption, slower cutting speeds, and premature wear on the saw. This translates to higher operating costs and a shorter lifespan for your investment.

• Data Point: According to Stihl’s maintenance guidelines, regular maintenance can extend the life of a chainsaw by up to 50%.

• Cost Breakdown:

  • Chain Sharpening (DIY): $5 – $10 per sharpening (files and tools)
  • Chain Sharpening (Professional): $15 – $25 per sharpening
  • Air Filter Replacement: $10 – $20
  • Spark Plug Replacement: $5 – $10
  • Bar Oil (per gallon): $15 – $30

Secret #3: Fuel Management – Optimizing Power and Reducing Costs

The MS 990 is a fuel-hungry beast. Optimizing fuel management is critical for maximizing power and minimizing operating costs. This involves using the correct fuel mixture, storing fuel properly, and understanding the saw’s fuel consumption rate.

• Fuel Mixture: Always use the recommended fuel mixture (typically 50:1) with high-quality two-stroke oil. Using the wrong mixture can damage the engine.

• Fuel Storage: Store fuel in approved containers and away from direct sunlight and heat. Old fuel can degrade and cause engine problems.

• Fuel Consumption: The MS 990’s fuel consumption varies depending on the type of wood, cutting technique, and chain sharpness.

• Cost Optimization:

  • Use Premium Fuel: While it costs more upfront, premium fuel can improve engine performance and reduce carbon buildup.
  • Maintain Sharp Chain: A sharp chain reduces the load on the engine, resulting in lower fuel consumption.
  • Avoid Idling: Excessive idling wastes fuel. Turn off the saw when not in use.

• Data Point: The MS 990’s fuel consumption rate can range from 0.8 to 1.2 liters per hour, depending on the load.

• Example Calculation: If you run the MS 990 for 8 hours a day at an average consumption rate of 1 liter per hour, you’ll use 8 liters of fuel. At $2/liter, that’s $16 per day in fuel costs.

Secret #4: Bar and Chain Selection – Matching the Tool to the Task

The MS 990 can accommodate a wide range of bar lengths and chain types. Selecting the right bar and chain for the specific task is crucial for maximizing cutting efficiency and minimizing wear and tear.

• Bar Length: Choose a bar length that is appropriate for the size of the timber you’re felling. Using a bar that is too short can be dangerous, while a bar that is too long can be cumbersome.

• Chain Type: Different chain types are designed for different types of wood. Use a full chisel chain for softwood and a semi-chisel chain for hardwood.

• Cost Savings: Using the correct bar and chain reduces the load on the engine, resulting in lower fuel consumption and longer tool life. It also improves cutting speed and efficiency, saving time and labor costs.

• Example: Using a full chisel chain on hardwood can lead to premature wear and dulling, requiring more frequent sharpening and replacement.

• Bar and Chain Costs:

  • Stihl MS 990 Chainsaw Bar (36″): $150 – $300
  • Stihl MS 990 Chainsaw Chain (36″): $50 – $100

Secret #5: Body Positioning and Ergonomics – Preventing Fatigue and Injury

Operating an MS 990 is physically demanding. Proper body positioning and ergonomics are essential for preventing fatigue and injury. This involves using the correct stance, grip, and cutting techniques.

• Stance: Maintain a wide stance with your feet shoulder-width apart. This provides stability and balance.

• Grip: Use a firm but relaxed grip on the saw. Avoid gripping too tightly, which can lead to fatigue.

• Cutting Techniques: Use your legs and core muscles to control the saw, not just your arms. Avoid twisting your body, which can strain your back.

• Safety Gear: Always wear appropriate safety gear, including a helmet, eye protection, ear protection, gloves, and chainsaw chaps.

• Cost Implications: Injuries can lead to lost work time, medical expenses, and potential lawsuits. Proper body positioning and safety gear can significantly reduce the risk of injury.

• Data Point: According to the National Safety Council, chainsaw-related injuries cost businesses millions of dollars each year in lost productivity and medical expenses.

• Safety Gear Costs:

  • Chainsaw Helmet: $50 – $150
  • Eye Protection: $10 – $30
  • Ear Protection: $20 – $50
  • Chainsaw Gloves: $30 – $60
  • Chainsaw Chaps: $80 – $150

The Real Cost of Owning a Stihl MS 990

Now that we’ve covered the pro secrets, let’s delve into the nitty-gritty of the actual costs involved in owning and operating a Stihl MS 990. This isn’t just about the sticker price; it’s about understanding the long-term investment.

Initial Investment

• Chainsaw Price: The Stihl MS 990 typically retails for between $2,000 and $2,500, depending on the location and any included accessories.

• Sales Tax: Don’t forget to factor in sales tax, which can add several hundred dollars to the initial cost.

• Accessories: You’ll also need to purchase essential accessories, such as a bar, chain, fuel can, and safety gear.

• Total Initial Investment: Expect to spend between $2,500 and $3,500 to get started with a Stihl MS 990.

Operating Costs

• Fuel Costs: As mentioned earlier, fuel costs can be significant, especially if you’re using the saw frequently.

• Bar Oil Costs: Bar oil is essential for lubricating the chain and preventing wear.

• Chain Sharpening Costs: Whether you sharpen your own chains or pay a professional, this is an ongoing expense.

• Maintenance Costs: Regular maintenance, including air filter replacement, spark plug replacement, and tune-ups, will add to your operating costs.

• Repair Costs: Even with proper maintenance, chainsaws can break down. Be prepared for potential repair costs.

Depreciation

• Chainsaw Value Over Time: Chainsaws depreciate over time, especially with heavy use. Factor this into your long-term cost calculations.

• Resale Value: The resale value of a used MS 990 depends on its condition and age.

The Cost of Labor

• Operator Wages: If you’re hiring someone to operate the MS 990, factor in their wages and any associated benefits.

• Training Costs: Proper training is essential for safe and efficient chainsaw operation.

Hidden Costs

• Permits: Depending on your location, you may need permits to fell trees or operate a chainsaw on public land.

• Insurance: Consider purchasing insurance to cover potential damage or liability.

• Transportation: The cost of transporting the MS 990 to and from job sites can also add up.

Budgeting for Wood Processing and Firewood Preparation

Now that we’ve explored the costs associated with owning and operating a Stihl MS 990, let’s discuss how to budget for wood processing and firewood preparation projects.

Step 1: Define Your Project Scope

• Timber Volume: Determine the volume of timber you need to harvest or process.

• Firewood Quantity: Estimate the quantity of firewood you need to produce.

• Project Timeline: Set a realistic timeline for completing the project.

Step 2: Estimate Your Costs

• Timber Purchase Costs: If you’re purchasing timber, get quotes from multiple suppliers.

• Harvesting Costs: Estimate the costs of felling, bucking, and skidding the timber.

• Processing Costs: Calculate the costs of milling, splitting, and stacking the wood.

• Transportation Costs: Factor in the costs of transporting the wood to its final destination.

• Labor Costs: Estimate the costs of hiring labor for the project.

Step 3: Create a Budget

• List All Costs: Create a detailed list of all anticipated costs.

• Allocate Funds: Allocate funds to each cost category.

• Contingency Fund: Set aside a contingency fund to cover unexpected expenses.

Step 4: Track Your Expenses

• Record All Expenses: Keep track of all expenses as they are incurred.

• Compare to Budget: Regularly compare your actual expenses to your budget.

• Adjust as Needed: Make adjustments to your budget as needed.

Practical Tips for Cost Optimization

• Negotiate Prices: Don’t be afraid to negotiate prices with suppliers and contractors.

• Shop Around: Get quotes from multiple suppliers and contractors.

• Use Efficient Techniques: Employ efficient wood processing and firewood preparation techniques.

• Minimize Waste: Minimize waste by using the wood efficiently.

• Take Advantage of Discounts: Look for discounts on timber, equipment, and supplies.

• Consider Renting: If you only need a chainsaw or other equipment for a short period, consider renting instead of buying.

Case Study: Firewood Preparation Budget

Let’s look at a case study of a firewood preparation project to illustrate the budgeting process.

• Project Goal: Produce 10 cords of firewood.

• Timber Source: Fallen trees on private property (no purchase cost).

• Equipment: Stihl MS 990 chainsaw, log splitter.

• Labor: Self (no labor cost).

• Estimated Costs:

  • Fuel: $100
  • Bar Oil: $30
  • Chain Sharpening: $20
  • Log Splitter Rental: $200
  • Transportation: $50
  • Contingency: $50
  • Total Estimated Cost: $450

• Cost per Cord: $45

• Market Value: $200 per cord

• Potential Profit: $155 per cord

This case study demonstrates that even with minimal costs, firewood preparation can be a profitable venture.

Calculations and Formulas

Here are some relevant calculations and formulas for wood processing and firewood preparation:

Calculating Board Feet

• Formula: (Thickness in inches x Width in inches x Length in feet) / 12

• Example: A board that is 2 inches thick, 12 inches wide, and 8 feet long contains (2 x 12 x 8) / 12 = 16 board feet.

Calculating Cords

• Definition: A cord is a stacked pile of wood that measures 4 feet high, 4 feet wide, and 8 feet long.

• Volume: 128 cubic feet

Estimating Drying Time

• Factors: Wood species, moisture content, climate conditions.

• General Rule: Hardwoods typically take 6-12 months to dry, while softwoods take 3-6 months.

• Moisture Meter: Use a moisture meter to determine the moisture content of the wood. Firewood should have a moisture content of 20% or less.

Challenges Faced by Small-Scale Loggers and Firewood Suppliers

Small-scale loggers and firewood suppliers face numerous challenges, including:

• Fluctuating Timber Prices: Timber prices can fluctuate significantly, making it difficult to plan and budget.

• Competition: The firewood market can be competitive, especially in areas with abundant wood resources.

• Regulations: Loggers and firewood suppliers must comply with various regulations, including environmental regulations and safety regulations.

• Equipment Costs: Chainsaws, log splitters, and other equipment can be expensive to purchase and maintain.

• Labor Shortages: Finding and retaining qualified labor can be a challenge.

• Weather Conditions: Inclement weather can disrupt logging and firewood preparation operations.

Actionable Takeaways and Next Steps

• Understand Your Needs: Before investing in an MS 990, assess your specific needs and determine if it’s the right tool for the job.

• Master the Fundamentals: Learn the fundamentals of chainsaw operation, including felling techniques, chain sharpening, and maintenance.

• Optimize Your Budget: Create a detailed budget for your wood processing or firewood preparation projects.

• Track Your Expenses: Keep track of your expenses and compare them to your budget.

• Continuously Improve: Continuously seek ways to improve your efficiency and reduce your costs.

The Stihl MS 990 is a powerful tool that can significantly increase productivity and profitability in professional arbor work. However, it’s essential to understand the costs associated with owning and operating this machine and to develop a sound budget for your wood processing and firewood preparation projects. By following the pro secrets and cost optimization tips outlined in this article, you can maximize the power of the MS 990 and achieve your goals.

This journey into the heart of the MS 990, its power, its costs, and the secrets to unlocking its potential, is just the beginning. The world of wood processing is vast and ever-evolving. Keep learning, keep experimenting, and keep refining your skills. The rewards, both financial and personal, are well worth the effort. Happy cutting!

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