WORKING TECHNIQUES

Tree felling technique

IMPORTANT! It takes a lot of experience to fell a tree. Inexperienced users of chain saws should not fell trees. Do not attempt any task beyond your experience level!

Safe distance

The safe distance between a tree that is to be felled and anyone else working nearby is at least 2 1/2 tree lengths. Make sure that no-one else is in this ”risk zone” before or during felling.

Felling direction

The aim is to fell the tree in a position where you can limb and cross-cut the log as easily as possible. You want it to fall in a location where you can stand and move about safely.

Once you have decided which way you want the tree to fall you must judge which way the tree would fall naturally.

Several factors affect this:

•Lean of the tree

•Bend

•Wind direction

•Arrangement of branches

•Weight of snow

•Obstacles within the reach of the tree: for example, other trees, power lines, roads and buildings.

•Look for signs of damage and rot in the stem, this makes it more probably that the tree will break and start to fall before you expect it to.

The main point to avoid is letting the tree fall onto another tree. It is very dangerous to remove a trapped tree and there is high accident risk. See instructions under the heading Freeing a tree that has fallen badly.

IMPORTANT! During critical felling operations, hearing protectors should be lifted immediately when sawing is completed so that sounds and warning signals can be heard.

Clearing the trunk and preparing your retreat

Delimb the stem up to shoulder height. It is safer to work from the top down and to have the tree between you and the saw.

Remove any undergrowth from the base of the tree and check the area for obstacles (stones, branches, holes, etc.) so that you have a clear path of retreat when the tree starts to fall. Your path of retreat should be roughly 135 degrees away from the intended felling direction.

You may find you are forced to let the tree fall in its natural direction because it is impossible or dangerous to try to make it fall in the direction you first intended.

Another very important factor, which does not affect the felling direction but does affect your safety, is to make sure the tree has no damaged or dead branches that might break off and hit you during felling.

Danger

zone

 

Retreat path

Danger

zone

 

Retreat path

Felling

direction

 

 

Danger

zone

 

 

26 – English

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Jonsered CS 2153 EPA I, CS 2152 EPA III manual Tree felling technique, Safe distance, Felling direction
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CS 2152 EPA III, CS 2153 EPA I specifications

Jonsered, a renowned name in the outdoor power tool industry, has produced a range of high-performance chainsaws designed for both professional and hobbyist use. Two noteworthy models are the Jonsered CS 2153 EPA I and the CS 2152 EPA III. Both chainsaws boast a combination of power, efficiency, and innovative technology, making them ideal for various cutting tasks.

The Jonsered CS 2153 EPA I is equipped with a robust 50cc engine that delivers an impressive power output, allowing for quick and efficient cutting through a variety of wood types. The chainsaw features a lightweight design, ensuring ease of handling and reduced fatigue during prolonged use. One of the standout features of the CS 2153 is its Rapid Reaction Start system, which significantly decreases starting effort and ensures a reliable ignition. This makes it particularly convenient for users who need to start the chainsaw multiple times throughout the day.

Additionally, the CS 2153 incorporates an ergonomic handle design, which improves comfort and control. The anti-vibration technology integrated into the saw helps to minimize the amount of vibration transferred to the user's hands, contributing to a smoother operation and less strain during long cutting sessions. Furthermore, the chainsaw comes with a tool-less chain tensioning system, allowing for quick adjustments without the need for additional tools, enhancing efficiency and saving valuable time.

On the other hand, the Jonsered CS 2152 EPA III features a slightly smaller yet powerful 40cc engine, making it an ideal choice for both light-duty and medium-duty cutting applications. Similar to the CS 2153, this model also boasts a lightweight and well-balanced design, making maneuverability easy for users. The CS 2152 is known for its exceptional fuel efficiency, thanks to the innovative X-Torq engine technology, which reduces fuel consumption and minimizes harmful emissions. This feature not only makes it environmentally friendly, but also reduces running costs over time.

Both models highlight Jonsered's commitment to user safety with a chain brake system that stops the chain in the event of kickback and a handguard to protect the user's hands. Overall, the Jonsered CS 2153 EPA I and CS 2152 EPA III are exceptional chainsaws, combining power, efficiency, and comfort in a user-friendly package. Whether you're a professional logger or a homeowner tackling occasional yard work, these chainsaws are sure to meet your cutting needs effectively and reliably.
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