ECS-3301/3351

Owner’s Manual

 

 

 

FELLING

Felling is more than cutting down a tree. You must also bring it down as near to an intended place as possible without damaging the tree or anything else.

Before felling a tree, carefully consider all conditions which may effect the intended direction, such as:

Angle of the tree. Shape of the crown. Snow load on the crown. Wind conditions. Obstacles within tree range (e.g., other trees, power lines, roads, buildings, etc.).

WARNING!

Always observe the general conditions of the tree. Look for decay and rot in the trunk which will make it more likely to snap and start to fall before you expect it.

Look for dry branches, which may break and hit you when you are working. Always keep animals and people at least twice the tree length away while felling. Clear away shrubs and branches from around the tree.

Prepare a path of retreat away from the felling direction.

BASIC RULES FOR FELLING TREES

Normally the felling consists of two main cutting operations-notching and making the felling cut.

Start making the upper notch cut on the side of the tree facing the feeling direction. Look through the kerf as you saw the lower cut so you do not saw too deep into the trunk.

The notch should be deep enough to create a hinge of sufficient width and strength.

The notch opening should be wide enough to direct the fall of the tree as long as possible.

Saw the felling cut from the other side of the tree between one and two inches (3-5 cm) above the edge of the notch. (Fig. 2-7D)

Never saw completely through the trunk. Always leave a hinge.

The hinge guides the tree. If the trunk is completely cut through, you lose control over the felling direction.

Insert a wedge or a felling lever in the cut well before the tree becomes unstable and starts to move. This will prevent the guide bar from binding in the felling cut if you have misjudged the falling direction. Make sure no people have come into the range of the falling tree before you push it over,

FELLING CUT, TRUNK DIAMETER MORE THAN TWICE GUIDE BAR LENGTH

Cut a large, wide notch. Then cut a recess into the center of the notch. Always leave a hinge on both sides of the center cut. (Fig. 2-7E)

Complete the felling cut by sawing around the trunk as in the Fig. 2-7F.

WARNING!

These methods are extremely dangerous because they involve the use of the nose of guide bar and can result in kickback. Only properly trained professionals should attempt these techniques.

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Tanaka ECS-3351, ECS-3301 manual Basic Rules for Felling Trees
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ECS-3301, ECS-3351 specifications

The Tanaka ECS series has made a significant impact in the world of advanced electronic circuit simulators, with models ECS-3301 and ECS-3351 leading the charge in terms of performance and technology. These devices are primarily designed for professionals in the fields of electrical engineering and electronics who require precision, reliability, and ease of use.

The Tanaka ECS-3301 is well-known for its intuitive user interface. It features a high-resolution display that enhances visibility and ease of navigation. With a robust built-in software package, users can access an extensive library of electronic components, allowing for quick setup and simulation without the need for extensive programming knowledge. The ECS-3301 is particularly lauded for its rapid computation speed, which allows for real-time simulations and analysis of complex circuits.

In contrast, the ECS-3351 builds upon the foundation laid by its predecessor, offering even more advanced features and capabilities. It is equipped with an upgraded processing unit that handles larger simulations with increased efficiency. The ECS-3351 is designed with multi-core processing technology, allowing for parallel simulations that drastically reduce turnaround times. This makes it particularly suitable for larger projects or academic purposes where real-time feedback is crucial.

Both models are equipped with various simulation modes, including DC, AC, transient analysis, and higher-level functionality for frequency domain analysis. They also support mixed-mode simulations, allowing engineers to work seamlessly across analog and digital components. This versatility is critical for modern electronic designs that often incorporate elements from both domains.

Another important characteristic of the ECS-3301 and ECS-3351 is the robust data visualization options. Users can generate detailed graphs and reports that illustrate circuit performance, enabling comprehensive analysis and documentation. Such features enhance the educational value of these simulators, making them popular tools in academic institutions and research laboratories.

The Tanaka ECS series recognizes the growing importance of connectivity in modern electronics. Both models offer extensive compatibility with various external devices and software, making it easy to integrate into existing workflows. With USB and network connectivity options, users can share data and simulation results effortlessly.

In conclusion, the Tanaka ECS-3301 and ECS-3351 are remarkable tools that streamline the design and analysis of electronic circuits. Combining user-friendly interfaces, advanced processing capabilities, and robust simulation features, these models stand out as essential instruments for engineers and educators alike. With their ongoing development, Tanaka continues to shape the future of electronic circuit simulation technology.
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