The Stihl 021 Chain Saw is a reliable and powerful tool designed for cutting wood and other materials efficiently. In this technical review, we will delve into the essential details of the Stihl 021, providing clear and concise information for both technical experts and those new to chainsaws.
- Engine and Power
The heart of the Stihl 021 is its two-stroke, single-cylinder engine. This gasoline-powered engine has a displacement of 38.9cc and generates around 2.0 HP (horsepower) at 12,000 RPM (revolutions per minute). This power output ensures that it can tackle a wide range of cutting tasks, from light pruning to more demanding timber cutting.
- Chain and Bar
The Stihl 021 comes with a standard 16-inch guide bar and a 3/8-inch pitch chain. The chain features a low kickback design, reducing the risk of dangerous kickback events. It also has impressive cutting performance due to its sharp, durable teeth.
- Starting Mechanism
This chainsaw is equipped with a simple yet reliable pull-start mechanism, making it easy for users to start the engine quickly. The Stihl 021 also has a decompression valve, which reduces the compression in the cylinder during startup, further easing the starting process.
- Lubrication System
Proper lubrication is crucial for the longevity of a chainsaw. The Stihl 021 features an automatic oiling system that ensures the chain and bar receive a consistent supply of oil during operation. This feature enhances the saw’s cutting performance and reduces wear and tear.
- Fuel and Oil Mixture
To maintain optimal engine performance, the Stihl 021 requires a fuel mixture of gasoline and 2-stroke oil at a ratio of 50:1. This ratio is crucial for preventing engine damage and ensuring a clean burn.
- Safety Features
Safety is a top priority when using a chainsaw. The Stihl 021 includes a chain brake, which can be activated manually or triggered by a sudden kickback. This feature rapidly stops the chain rotation to prevent accidents.
- Maintenance
Proper maintenance is essential to keep the Stihl 021 running smoothly. Regular tasks include cleaning the air filter, sharpening the chain, and checking the tension of the chain. Detailed maintenance instructions can be found in the user manual.
- Noise and Vibration
Chainsaws can be noisy and cause hand-arm vibration. The Stihl 021 incorporates features to reduce these factors, making it a more comfortable tool to use for extended periods.
Conclusion
The Stihl 021 Chain Saw is a reliable and versatile tool designed to meet the needs of both professional loggers and homeowners. With its powerful engine, user-friendly features, and commitment to safety, it has established itself as a top choice in the world of chainsaws. Whether you are tackling a heavy-duty job in the forest or simply maintaining your backyard, the Stihl 021 is a dependable companion that ensures efficiency and precision.
Please note that proper safety precautions, including the use of protective gear and adherence to safety guidelines, are essential when operating any chainsaw. Always consult the manufacturer’s manual for detailed instructions on operation, maintenance, and safety.
By understanding the technical details of the Stihl 021 Chain Saw, users can make informed decisions, ensuring that they get the most out of this powerful and reliable tool.