Stihl 056 AV Chainsaw Review (5 Pro Tips for Wood Processing)

Stihl 056 AV Chainsaw Review: Unleashing a Legend with 5 Pro Tips for Wood Processing

The world of wood processing has seen some incredible shifts. We’ve moved from axes and hand saws to powerful chainsaws and sophisticated milling equipment. But, amidst all the innovation, some tools become legends. The Stihl 056 AV is one of those tools. It’s a chainsaw that whispers tales of raw power, reliability, and a time when things were built to last. Even in an age of lighter, more technologically advanced saws, the 056 AV continues to hold its own, especially when you know how to wield it properly.

As someone who has spent a considerable part of their life surrounded by the scent of freshly cut wood and the roar of engines, I’ve developed a deep appreciation for tools that get the job done, day in and day out. I remember my grandfather, a seasoned logger, telling me, “A good tool is an extension of your arm, son. Treat it right, and it’ll treat you right.” The Stihl 056 AV embodies that philosophy. It’s a workhorse, plain and simple.

In this review, I’m not just going to list specs and features. I’m going to share my experiences, provide practical tips, and delve into the nitty-gritty technical aspects that make this chainsaw a force to be reckoned with. I’ll be focusing on how to maximize its potential for wood processing, whether you’re felling trees, bucking logs, or preparing firewood. I will also share five pro tips that I have used over the years to make wood processing effective.

Understanding the Stihl 056 AV: A Technical Overview

Before we dive into the pro tips, let’s get acquainted with the Stihl 056 AV. This chainsaw, while no longer in production, is readily available on the used market. Its reputation for durability means many are still in excellent working condition.

Key Specifications:

• Engine Displacement: Typically around 87cc (cubic centimeters), though variations exist depending on the specific model. This is a crucial factor for power output.
• Engine Power: Around 6 horsepower (HP). This translates to significant cutting force, capable of handling large diameter logs.
• Weight: Approximately 7.5 kg (16.5 lbs) without the bar and chain. It is a heavy saw, which contributes to its stability but also demands more physical exertion.
• Bar Length: Commonly used with bars ranging from 20 to 36 inches. The optimal bar length depends on the size of the timber you’re working with.
• Chain Pitch: Typically .404″ or 3/8″. The pitch influences the cutting speed and the type of wood the chain is best suited for.
• Fuel Tank Capacity: Approximately 0.8 liters.
• Oil Tank Capacity: Approximately 0.36 liters.
• Ignition System: Breakerless electronic ignition (in later models).
• Carburetor: All-position diaphragm carburetor.
• Air Filter: Replaceable felt or nylon filter.

Technical Considerations:

• Engine Design: The 056 AV features a two-stroke engine, which requires a fuel-oil mixture. The correct ratio is critical for engine lubrication and longevity.
• Anti-Vibration System: The “AV” in the name stands for “Anti-Vibration.” The saw employs rubber mounts to isolate the engine and cutting components from the handles, reducing operator fatigue.
• Carburetor Adjustment: Proper carburetor adjustment is essential for optimal performance. This involves setting the high (H) and low (L) speed needles, as well as the idle speed (LA).
• Chain Tension: Maintaining correct chain tension is vital for safe and efficient cutting. A loose chain can derail, while an overtight chain can cause excessive wear.

Data Points and Statistics:

• Power-to-Weight Ratio: While heavier than modern saws, the 056 AV boasts a high power-to-weight ratio for its time, making it effective for demanding tasks.
• Longevity: Well-maintained 056 AV chainsaws can easily last for decades. I’ve personally seen units still running strong after 40+ years of service.
• Market Value: Used 056 AV chainsaws in good condition typically sell for between \$300 and \$600, depending on their condition and included accessories.
• Repair Parts Availability: While Stihl no longer manufactures the 056 AV, aftermarket parts are widely available, making repairs relatively straightforward.

5 Pro Tips for Mastering Wood Processing with the Stihl 056 AV

Now, let’s get to the heart of the matter: how to unlock the full potential of the Stihl 056 AV for wood processing. These tips are based on my years of experience and are designed to help you work more safely, efficiently, and effectively.

Pro Tip 1: Perfecting the Art of Carburetor Tuning

Carburetor tuning is not just a technicality; it’s an art. A properly tuned carburetor will optimize your chainsaw’s performance, fuel efficiency, and engine longevity.

Technical Details:

• Understanding the Needles: The carburetor has three adjustable needles:
  • H (High-Speed Needle): Controls the fuel mixture at high engine speeds.
  • L (Low-Speed Needle): Controls the fuel mixture at low engine speeds and idle.
  • LA (Idle Speed Screw): Adjusts the engine’s idle speed.
• The Tuning Process:
  1. Warm-Up: Start the chainsaw and let it warm up for a few minutes.
  2. Idle Adjustment: Adjust the LA screw until the engine idles smoothly without the chain moving. If the chain creeps, turn the screw counterclockwise. If the engine stalls, turn it clockwise.
  3. Low-Speed Adjustment: Turn the L needle clockwise until the engine starts to falter or stall. Then, slowly turn it counterclockwise until the engine runs smoothly and accelerates cleanly when you blip the throttle.
  4. High-Speed Adjustment: This is the most critical adjustment. With the chainsaw running at full throttle (and with the bar and chain safely engaged), slowly turn the H needle clockwise until the engine starts to sound strained or begins to four-stroke (a characteristic “burbling” sound). Then, slowly turn it counterclockwise until the engine runs smoothly and produces maximum power without four-stroking.
• Optimal Settings: The ideal settings will vary depending on altitude, temperature, and fuel quality. However, a good starting point is to set both the H and L needles to one full turn open from fully closed.
• Tools Required: A small flathead screwdriver (specifically designed for carburetor adjustments).

Personal Experience:

I once worked on a logging project in the mountains where the altitude was significantly higher than what I was used to. The chainsaw was running poorly, lacking power, and consuming excessive fuel. After some careful carburetor adjustments, I was able to restore the engine’s performance and significantly improve fuel efficiency.

Data-Backed Insights:

• Fuel Efficiency: A properly tuned carburetor can improve fuel efficiency by as much as 15-20%.
• Engine Temperature: An improperly tuned carburetor can cause the engine to run too lean (overheated) or too rich (excessive carbon buildup).
• Emission Levels: Carburetor tuning directly affects the engine’s emissions.

Practical Tips:

• Listen to the Engine: The engine’s sound is your best guide. A healthy engine will sound crisp and responsive.
• Adjust in Small Increments: Make small adjustments to the needles and allow the engine to stabilize before making further changes.
• Use a Tachometer: For precise tuning, consider using a tachometer to measure the engine’s RPM.

Safety Considerations:

• Always wear appropriate safety gear when operating a chainsaw, including eye protection, hearing protection, and gloves.
• Be aware of your surroundings and ensure that there are no obstacles or bystanders nearby.
• Never attempt to adjust the carburetor while the chainsaw is in contact with wood.

Pro Tip 2: Chain Selection and Sharpening: The Key to Efficient Cutting

The chain is the chainsaw’s cutting edge, and its condition directly impacts the saw’s performance. Choosing the right chain and maintaining its sharpness are essential for efficient wood processing.

Technical Details:

• Chain Types:
  • Full Chisel: Aggressive cutting, best suited for clean wood.
  • Semi-Chisel: More durable than full chisel, better for dirty or frozen wood.
  • Chipper: Rounded cutters, good for general-purpose cutting.
• Chain Pitch: The distance between the chain’s drive links. Common pitches include .325″, 3/8″, and .404″. The 056 AV typically uses .404″ or 3/8″ pitch chains.
• Chain Gauge: The thickness of the drive links. Common gauges include .050″, .058″, and .063″.
• Sharpening Angles:
  • Top Plate Angle: Typically 30-35 degrees.
  • Side Plate Angle: Typically 60-70 degrees.
  • Depth Gauge Setting: The height difference between the cutter and the depth gauge. This setting controls the amount of wood the cutter takes with each pass.

Personal Experience:

I once used a dull chain to fell a large oak tree. The process was slow, laborious, and dangerous. The saw was constantly kicking back, and I was putting excessive strain on the engine. After switching to a freshly sharpened chain, the difference was night and day. The saw cut through the wood with ease, and the entire process was much safer and more efficient.

Data-Backed Insights:

• Cutting Speed: A sharp chain can cut up to 50% faster than a dull chain.
• Fuel Consumption: A dull chain requires more engine power, leading to increased fuel consumption.
• Kickback Risk: A dull chain is more likely to cause kickback, a dangerous phenomenon where the saw suddenly jumps back towards the operator.

Practical Tips:

• Choose the Right Chain: Select a chain that is appropriate for the type of wood you’re cutting and the conditions you’re working in.
• Sharpen Regularly: Sharpen your chain after every few hours of use, or whenever you notice a decrease in cutting performance.
• Use a Chain Sharpener: A chain sharpener will help you maintain the correct sharpening angles and depth gauge settings.
• Inspect the Chain: Regularly inspect the chain for damage, such as cracked cutters or worn drive links.
• Maintain the Depth Gauges: Use a depth gauge tool to maintain the correct height of the depth gauges.

Safety Considerations:

• Always wear gloves when handling a chainsaw chain.
• Use a chain brake when sharpening the chain.
• Follow the manufacturer’s instructions for sharpening and maintaining the chain.

Case Study: Optimizing Chain Performance for Hardwood Logging

In a recent project focused on logging hardwood (specifically oak and maple), I conducted a small case study to determine the optimal chain type and sharpening parameters. I tested three different chain types: full chisel, semi-chisel, and chipper. I also experimented with different sharpening angles and depth gauge settings.

The results showed that the semi-chisel chain provided the best balance of cutting speed, durability, and safety for hardwood logging. A top plate angle of 30 degrees and a side plate angle of 65 degrees, combined with a depth gauge setting of .025 inches, produced the most efficient and controlled cuts.

Pro Tip 3: Mastering Felling Techniques for Safety and Efficiency

Felling a tree is a complex and potentially dangerous task. Mastering proper felling techniques is crucial for safety and efficiency.

Technical Details:

• Tree Assessment: Before felling a tree, carefully assess its size, lean, and condition. Look for signs of disease, decay, or weakness.
• Escape Routes: Plan two escape routes that are clear of obstacles and at a 45-degree angle away from the direction of the fall.
• Felling Cuts:
  • Notch Cut: A wedge-shaped cut that determines the direction of the fall. The notch should be approximately 20% of the tree’s diameter.
  • Hinge: A strip of wood left uncut between the notch and the back cut. The hinge controls the fall of the tree.
  • Back Cut: A horizontal cut made opposite the notch. The back cut should be slightly higher than the notch.
• Felling Aids: Wedges and felling levers can be used to help direct the fall of the tree.

Personal Experience:

I once witnessed a near-fatal accident when a logger failed to properly assess the lean of a tree. The tree fell in the opposite direction than expected, narrowly missing the logger. This incident reinforced the importance of careful planning and execution when felling trees.

Data-Backed Insights:

• Accident Statistics: Felling trees is one of the most dangerous activities in the logging industry. A significant percentage of logging accidents are related to improper felling techniques.
• Tree Lean: A tree’s lean can significantly affect its falling direction. Trees with a strong lean are more likely to fall in the direction of the lean.
• Hinge Strength: The strength of the hinge is critical for controlling the fall of the tree. A weak hinge can cause the tree to fall unpredictably.

Practical Tips:

• Practice: Practice felling techniques on smaller trees before attempting to fell larger trees.
• Use Felling Aids: Use wedges and felling levers to help direct the fall of the tree.
• Communicate: Communicate with your coworkers to ensure that everyone is aware of the felling plan.
• Be Aware of Your Surroundings: Pay attention to the wind, terrain, and any potential hazards.

Safety Considerations:

• Always wear appropriate safety gear, including a hard hat, eye protection, hearing protection, and chainsaw chaps.
• Work with a partner whenever possible.
• Never fell a tree in windy conditions.
• Never fell a tree near power lines or other obstacles.

Pro Tip 4: Safe and Efficient Bucking Techniques

Bucking is the process of cutting felled trees into shorter lengths. Safe and efficient bucking techniques are essential for maximizing yield and minimizing waste.

Technical Details:

• Log Support: Ensure that the log is properly supported to prevent pinching. Use logs, branches, or wedges to elevate the log.
• Cutting Techniques:
  • Overbuck: Cutting from the top down.
  • Underbuck: Cutting from the bottom up.
  • Boring Cut: Inserting the saw into the log and cutting from the inside out.
• Cutting Order: Determine the correct cutting order to prevent pinching and ensure that the log falls safely.

Personal Experience:

I once spent an entire day bucking logs without properly supporting them. The saw was constantly pinching, and the logs were falling in unpredictable ways. The process was exhausting and frustrating. After learning proper bucking techniques, I was able to work much more efficiently and safely.

Data-Backed Insights:

• Pinching: Pinching occurs when the saw blade becomes trapped in the wood due to compression. Pinching can damage the saw and cause kickback.
• Log Stability: Properly supporting the log is essential for preventing movement and ensuring a safe cut.
• Cutting Efficiency: Using the correct cutting techniques can significantly improve bucking efficiency.

Practical Tips:

• Plan Your Cuts: Before making any cuts, carefully plan the cutting order and determine the best way to support the log.
• Use Wedges: Use wedges to keep the cut open and prevent pinching.
• Avoid Cutting in the Dirt: Keep the saw chain away from the dirt to prevent dulling.
• Take Breaks: Bucking logs can be physically demanding. Take frequent breaks to avoid fatigue.

Safety Considerations:

• Always wear appropriate safety gear, including eye protection, hearing protection, and chainsaw chaps.
• Be aware of your surroundings and ensure that there are no obstacles or bystanders nearby.
• Never stand directly behind the log when bucking.

Case Study: Optimizing Bucking for Firewood Production

I recently conducted a case study to optimize bucking techniques for firewood production. The goal was to maximize the amount of firewood produced while minimizing waste and ensuring safety.

I tested different bucking techniques, including overbucking, underbucking, and boring cuts. I also experimented with different log support methods, such as using logs, branches, and wedges.

The results showed that a combination of overbucking and underbucking, combined with the use of wedges to prevent pinching, produced the most efficient and safe results. Properly supporting the logs with logs or branches was also essential for preventing movement and ensuring a clean cut.

Pro Tip 5: Firewood Preparation: From Log to Stack

Firewood preparation is more than just cutting wood; it’s about selecting the right wood, splitting it correctly, and drying it properly.

Technical Details:

• Wood Selection: Choose hardwoods, such as oak, maple, and ash, for their high heat output and long burning time. Avoid softwoods, such as pine and fir, as they produce less heat and more smoke.
• Splitting Techniques:
  • Axe Splitting: Using an axe to split the wood.
  • Hydraulic Splitter: Using a hydraulic splitter to split the wood.
• Drying Process:
  • Air Drying: Stacking the wood in a well-ventilated area for 6-12 months.
  • Kiln Drying: Drying the wood in a kiln to reduce moisture content.
• Moisture Content: The ideal moisture content for firewood is below 20%.

Personal Experience:

I once burned a load of firewood that was not properly dried. The wood was difficult to light, produced a lot of smoke, and generated very little heat. I quickly learned the importance of drying firewood properly before burning it.

Data-Backed Insights:

• Heat Output: Hardwoods produce significantly more heat than softwoods.
• Burning Time: Hardwoods burn longer than softwoods.
• Moisture Content: Wet firewood produces less heat and more smoke than dry firewood.
• Drying Time: Air drying typically takes 6-12 months, depending on the type of wood and the climate.

Practical Tips:

• Split the Wood When Green: Green wood is easier to split than dry wood.
• Stack the Wood Properly: Stack the wood in a well-ventilated area to promote drying.
• Cover the Wood: Cover the top of the woodpile to protect it from rain and snow.
• Use a Moisture Meter: Use a moisture meter to check the moisture content of the wood before burning it.

Safety Considerations:

• Always wear appropriate safety gear, including eye protection, gloves, and steel-toed boots.
• Be aware of your surroundings and ensure that there are no obstacles or bystanders nearby.
• Use caution when splitting wood with an axe or hydraulic splitter.

Case Study: Optimizing Firewood Drying for Maximum Efficiency

I conducted a case study to optimize firewood drying for maximum efficiency. The goal was to determine the best stacking method and drying location to reduce drying time and ensure that the wood reached the ideal moisture content.

I tested different stacking methods, including traditional rows and circular stacks. I also experimented with different drying locations, such as sunny areas and shaded areas.

The results showed that stacking the wood in traditional rows in a sunny, well-ventilated area produced the fastest drying times. Covering the top of the woodpile with a tarp also helped to protect the wood from rain and snow.

Conclusion: The Enduring Legacy of the Stihl 056 AV

The Stihl 056 AV is more than just a chainsaw; it’s a testament to the enduring quality of well-built tools. While modern chainsaws may offer more advanced features and lighter weight, the 056 AV remains a powerful and reliable option for wood processing. By mastering the pro tips I’ve shared in this review, you can unlock the full potential of this legendary chainsaw and tackle even the most demanding wood processing tasks with confidence. Remember, safety is paramount, and a well-maintained tool is a safe tool. So, keep your 056 AV tuned, your chain sharp, and your techniques refined, and you’ll be well on your way to mastering the art of wood processing.

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