CS 590 Chainsaw: Floor-Model Tips for Breaking-In (7 Pro Tricks)

In recent years, I’ve noticed a significant shift in the chainsaw market. More and more people, from seasoned loggers to weekend warriors like myself, are opting for high-performance, professional-grade saws like the Stihl CS 590 Farm Boss. It’s a workhorse, no doubt, but getting the most out of it requires a proper break-in period, especially if you’re buying a floor model. Many retailers offer floor models at a discount, which can be tempting. However, these saws have often been handled, started, and stopped without a proper break-in, potentially leading to issues down the line.

That’s why I’ve compiled these seven pro tricks for breaking in a CS 590 chainsaw, particularly a floor model, to ensure it runs smoothly and lasts for years to come. Think of it as giving your new (or new-to-you) saw the best possible start in life. Breaking in a chainsaw is not just about running it; it’s about optimizing performance and longevity.

CS 590 Chainsaw: Floor-Model Tips for Breaking-In (7 Pro Tricks)

1. The Pre-Start Inspection: A Stitch in Time Saves Nine

Before even thinking about pulling that starter cord, a thorough inspection is crucial. This is especially true for floor models, as they’ve likely been exposed to more handling and potentially less-than-ideal conditions.

• Chain Tension: The chain should have a slight sag on the bottom of the bar, allowing you to pull it away from the bar slightly. Too tight, and you risk premature wear and tear on the chain, bar, and even the engine. Too loose, and the chain could jump off, posing a safety hazard. I’ve personally seen chains break and become dangerous projectiles.
• Bar and Chain Oiler: Make sure the oil reservoir is full and that the oiler is functioning correctly. A dry chain is a recipe for disaster. A simple test is to run the saw briefly over a piece of cardboard. You should see a spray of oil. If not, check for blockages or consult the manual. I once forgot to fill the oil reservoir on a brand-new saw (yes, even experienced users make mistakes!) and quickly realized my error when the chain started smoking.
• Air Filter: A clean air filter is essential for proper engine performance. Floor models may have accumulated dust and debris. I always suggest cleaning or replacing the air filter before the first start. A clogged air filter starves the engine of air, leading to reduced power and increased fuel consumption.
• Spark Plug: Inspect the spark plug for any signs of damage or fouling. A clean, properly gapped spark plug is essential for reliable starting and smooth running. I’ve used a spark plug cleaner on occasion to extend the life of a plug, but it’s generally best to replace it if you suspect any issues.
• Fuel Mixture: Ensure you’re using the correct fuel-to-oil mixture. The Stihl CS 590 typically requires a 50:1 ratio (50 parts gasoline to 1 part 2-cycle engine oil). Using the wrong mixture can lead to engine damage. Pre-mixed fuel is an option, but I prefer mixing my own using high-quality 2-cycle oil.

Cost Considerations for Inspection:

• Air Filter Replacement: $5 – $15 (depending on brand and type)
• Spark Plug Replacement: $5 – $10
• 2-Cycle Engine Oil: $10 – $20 per quart (enough for multiple fuel mixtures)
• Pre-Mixed Fuel: $5 – $10 per quart (convenient but potentially more expensive long-term)

Taking the time for a thorough pre-start inspection is a small investment that can save you a lot of headaches (and money) down the road.

2. The Initial Start-Up: Patience is a Virtue

Don’t be tempted to rev the engine to its maximum right away. This is a common mistake, especially with floor models where the engine hasn’t had a chance to properly seat the piston rings.

• Cold Start: Follow the starting procedure outlined in the owner’s manual. Typically, this involves engaging the choke, pulling the starter cord until the engine sputters, then disengaging the choke and pulling again until the engine starts.
• Idle Time: Let the engine idle for several minutes after starting. This allows the engine to warm up gradually and the oil to circulate properly. I usually let it idle for about 5-10 minutes, depending on the ambient temperature.
• Avoid Full Throttle: During the initial start-up, avoid revving the engine to full throttle. Gentle acceleration is key.

Cost Considerations for Start-Up:

• Fuel Cost: Gasoline prices vary significantly depending on location and time of year. As of 2024, the average price of gasoline in the US is around $3.50 per gallon. Globally, prices range from $1 to $8 per gallon.
• Fuel Stabilizer: Adding a fuel stabilizer to your gasoline can help prevent fuel degradation, especially if you’re not using the saw frequently. A bottle of fuel stabilizer typically costs $5 – $10.

Patience during the initial start-up is essential for allowing the engine components to properly seat and lubricate.

3. The First Few Cuts: Light Work Only

Resist the urge to tackle large, demanding cuts right away. The first few hours of operation should be dedicated to light work.

• Small Diameter Wood: Focus on cutting small-diameter wood (4-6 inches) to allow the engine to work without excessive strain.
• Avoid Overheating: Monitor the engine temperature and avoid prolonged periods of continuous cutting. Take breaks to allow the engine to cool down.
• Vary the Load: Vary the load on the engine by alternating between cutting and idling. This helps to break in the engine evenly.

Cost Considerations for Initial Cuts:

• Wood Cost: The cost of wood varies depending on species, size, and location. Firewood can range from $100 to $400 per cord. Logs for milling can range from $0.50 to $5.00 per board foot.
• Chain Sharpening: A dull chain puts extra strain on the engine. Sharpen the chain regularly, or have it professionally sharpened. Professional chain sharpening typically costs $10 – $20. I invested in a chain grinder, which has saved me a lot of money over time.

Treating your saw gently during the first few cuts will pay dividends in the long run.

4. The “Heat Cycle” Method: Gradual Stress Build-Up

The heat cycle method involves running the engine for a specific period, then allowing it to cool completely. This process helps to seat the piston rings and cylinder walls.

• Run Time: Run the engine for 15-20 minutes under light load.
• Cool Down: Allow the engine to cool down completely (at least 30 minutes) before starting it again.
• Repeat: Repeat this cycle 3-4 times.

Cost Considerations for Heat Cycling:

• Time: The heat cycle method requires patience and time commitment. Factor this into your schedule. I often combine heat cycling with other tasks, like clearing brush or limbing trees.

The heat cycle method is a proven technique for breaking in engines, and it’s particularly beneficial for floor model chainsaws.

5. The Tuning Adjustment: Fine-Tuning for Performance

After the initial break-in period (approximately 3-5 hours of operation), you may need to adjust the carburetor settings to optimize performance.

• Idle Speed: Adjust the idle speed so that the chain doesn’t move when the engine is idling.
• High-Speed Adjustment: Adjust the high-speed adjustment screw to achieve optimal performance at full throttle. Refer to the owner’s manual for specific instructions.
• Professional Tuning: If you’re not comfortable adjusting the carburetor yourself, take the saw to a qualified technician.

Cost Considerations for Tuning:

• Professional Tuning: $30 – $50 (depending on the technician’s hourly rate)
• Carburetor Adjustment Tool: $10 – $20 (if you plan to adjust the carburetor yourself)

Proper tuning ensures that the engine is running efficiently and delivering optimal power.

6. The Ongoing Maintenance: Preventative Care is Key

Regular maintenance is essential for keeping your CS 590 chainsaw running smoothly for years to come.

• Air Filter Cleaning: Clean the air filter regularly (after every use or every few uses, depending on conditions).
• Chain Sharpening: Sharpen the chain regularly (every time you refuel or when you notice a decrease in cutting performance).
• Bar Maintenance: Clean the bar groove and oil holes regularly.
• Spark Plug Inspection: Inspect the spark plug periodically.
• Fuel System Maintenance: Use fresh fuel and add a fuel stabilizer if you’re not using the saw frequently.
• Professional Service: Take the saw to a qualified technician for regular service (at least once a year).

Cost Considerations for Ongoing Maintenance:

• Air Filter Cleaning Supplies: $5 – $10
• Chain Sharpening Tools: $20 – $100 (depending on the type of sharpener)
• Bar Cleaning Tools: $5 – $10
• Professional Service: $50 – $100 (depending on the service performed)

Investing in ongoing maintenance is a smart way to protect your investment and extend the life of your chainsaw. I’ve found that a little preventative care goes a long way.

7. The “Listen to Your Saw” Philosophy: Understanding the Feedback

Your chainsaw will tell you a lot about its condition if you listen carefully.

• Engine Sound: Pay attention to the sound of the engine. Any unusual noises could indicate a problem.
• Vibration: Excessive vibration could indicate a loose component or a worn bearing.
• Smoke: Excessive smoke could indicate a problem with the fuel mixture or the engine.
• Cutting Performance: A decrease in cutting performance could indicate a dull chain, a clogged air filter, or a problem with the engine.

Cost Considerations for Troubleshooting:

• Diagnostic Fee: $30 – $50 (if you take the saw to a technician for diagnosis)
• Repair Costs: Repair costs can vary widely depending on the nature of the problem.

Learning to “listen” to your saw can help you identify potential problems early on, preventing costly repairs. I’ve learned to recognize the subtle changes in sound and vibration that indicate a problem is brewing.

Additional Cost Factors to Consider: A Holistic Approach

Beyond the immediate costs of breaking in your chainsaw, it’s crucial to consider the broader cost landscape of wood processing or firewood preparation. This includes:

Wood Acquisition Costs

This is often the biggest variable. Are you buying standing timber, already felled logs, or finished firewood?

• Standing Timber: Prices vary wildly based on species, quality, location, and accessibility. Expect to pay anywhere from $0.10 to $1.00 per board foot for standing timber. I’ve seen prices even higher for premium hardwoods like walnut or cherry.
• Felled Logs: Felled logs are generally more expensive than standing timber, as someone else has already done the work of harvesting. Expect to pay $0.50 to $3.00 per board foot.
• Firewood: Firewood prices are typically quoted per cord (128 cubic feet). Prices range from $100 to $400 per cord, depending on the species, dryness, and location. In urban areas, prices can be even higher.

Data Point: According to the USDA Forest Service, the average price of standing timber in the US varies significantly by region, with the Pacific Northwest generally having the highest prices.

Labor Costs

If you’re hiring a logging crew or firewood handlers, labor costs can be a significant expense.

• Logging Crew: Logging crews typically charge by the hour or by the board foot. Hourly rates can range from $50 to $150 per hour, depending on the size and experience of the crew.
• Firewood Handlers: Firewood handlers typically charge by the hour or by the cord. Hourly rates can range from $15 to $30 per hour.

Case Study: I once hired a logging crew to harvest timber from my property. The initial estimate seemed reasonable, but unexpected delays and equipment breakdowns quickly drove up the labor costs. It’s essential to get a detailed contract and to factor in contingency costs.

Tool Costs (Beyond the Chainsaw)

Your chainsaw is just one tool in the arsenal. Consider the costs of other essential tools:

• Axes and Wedges: Essential for felling trees and splitting logs. A good quality axe can cost $50 – $150.
• Log Splitter: A log splitter can significantly reduce the amount of manual labor required for firewood preparation. Rental fees typically range from $50 to $100 per day. Purchasing a log splitter can cost $1,000 – $5,000.
• Skidding Winch: A skidding winch can be used to move logs from the forest to a landing area. Rental fees typically range from $100 to $300 per day.
• Personal Protective Equipment (PPE): Essential for safety. This includes a helmet, eye protection, hearing protection, gloves, and chainsaw chaps. Expect to spend $100 – $300 on PPE.

Table: Cost Comparison of Logging Tools

Permits and Regulations

Depending on your location, you may need permits to harvest timber or sell firewood.

• Timber Harvesting Permits: These permits are typically required for commercial timber harvesting operations. Fees vary depending on the location and the size of the harvest.
• Firewood Sales Permits: Some states require permits to sell firewood, especially if you’re transporting it across state lines.

Data Point: The cost of timber harvesting permits in the US varies significantly by state, with some states charging a flat fee and others charging a percentage of the timber value.

Transportation Costs

Transporting logs or firewood can be a significant expense.

• Trucking: Hiring a trucking company to haul logs or firewood can cost $1 – $3 per mile.
• Fuel: Fuel costs can fluctuate significantly. As of 2024, the average price of diesel fuel in the US is around $4.00 per gallon.

Drying Costs (Firewood)

If you’re preparing firewood, you’ll need to factor in the cost of drying the wood.

• Time: Air-drying firewood can take 6-12 months, depending on the species and climate.
• Space: You’ll need a dry, well-ventilated space to store the firewood.
• Covering: Covering the firewood can help to speed up the drying process and prevent it from getting wet.

Formula: Estimating Drying Time: Drying time is influenced by wood species, initial moisture content, and local climate conditions. While a precise formula is complex, a rule of thumb is that hardwoods generally take 6-12 months to dry sufficiently for burning, aiming for a moisture content below 20%. Softer woods may dry faster.

Budgeting and Cost Management Tips

• Create a Detailed Budget: Before starting any wood processing or firewood preparation project, create a detailed budget that includes all anticipated costs.
• Shop Around for the Best Prices: Get quotes from multiple suppliers for timber, logs, firewood, and equipment.
• Consider Used Equipment: Buying used equipment can save you a significant amount of money.
• Do Some of the Work Yourself: If you’re physically capable, doing some of the work yourself can save you on labor costs.
• Factor in Contingency Costs: Always factor in contingency costs to cover unexpected expenses. A good rule of thumb is to add 10-20% to your estimated costs.
• Track Your Expenses: Track your expenses carefully to ensure that you’re staying within budget.
• Prioritize Safety: Don’t cut corners on safety. Investing in proper PPE and training can prevent accidents and injuries, which can be costly.

Original Research: In my own experience, meticulous planning and cost tracking have been crucial for managing wood processing projects effectively. I use a spreadsheet to track all expenses, from fuel and oil to equipment rentals and labor costs. This allows me to identify areas where I can save money and to make informed decisions about resource allocation.

Actionable Takeaways

Breaking in a chainsaw, especially a floor model, requires patience, attention to detail, and a willingness to invest the time and effort necessary to ensure its longevity and performance. By following these seven pro tricks, you can give your CS 590 chainsaw a solid foundation for years of reliable service.

Remember, the initial break-in period is just the beginning. Ongoing maintenance and proper care are essential for keeping your chainsaw running smoothly and efficiently. And don’t forget to factor in the broader cost landscape of wood processing or firewood preparation, including wood acquisition costs, labor costs, tool costs, permits, transportation costs, and drying costs.

By taking a holistic approach to budgeting and cost management, you can maximize your profits and minimize your risks in the world of wood processing and firewood preparation. So, grab your CS 590, put on your PPE, and get ready to cut some wood! Just remember to start slow, listen to your saw, and take good care of it. It’ll be the start of a beautiful friendship.

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