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Jonsered CS 2141S, CS 2145S manual

Models: CS 2145S CS 2141S

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WORKING TECHNIQUES

Felling

WARNING! Unless you have special training

!we advise you not to fell trees with a diameter larger than the bar length of your saw!

Felling is done using three cuts. First you make the directional cuts, which consist of the top cut and the bottom cut, then you finish with the felling cut. By placing these cuts correctly you can control the felling direction very accurately.

Directional cuts

To make the directional cuts you begin with the top cut. Stand to the right of the tree and cut on the pull stroke.

Next make the bottom cut so that it finishes exactly at the end of the top cut.

The directional cuts should run 1/4 of the diameter through the trunk and the angle between the top cut and bottom cut should be 45°.

The line where the two cuts meet is called the directional cut line. This line should be perfectly horizontal and at right angles (90°) to the chosen felling direction.

Felling cut

The felling cut is made from the opposite side of the tree and it must be perfectly horizontal. Stand on the left side of the tree and cut on the pull stroke.

Make the felling cut about 3-5 cm (1.5-2 inches) above the bottom directional cut.

Finish the felling cut parallel with the directional cut line so that the distance between them is at least 1/10 of the trunk diameter. The uncut section of the trunk is called the felling hinge.

The felling hinge controls the direction that the tree falls in.

All control over the felling direction is lost if the felling hinge is too narrow or non-existent, or if the directional cuts and felling cut are badly placed.

When the felling cut and directional cut are complete the tree should start to fall by itself or with the aid of a felling wedge or breaking bar.

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Jonsered CS 2141S, CS 2145S manual
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CS 2145S, CS 2141S specifications

The Jonsered CS 2141S and CS 2145S chainsaws are powerful tools designed for both professional and avid hobbyist woodworkers. Known for their robust construction and efficient performance, these chainsaws embody reliability and advanced technology, making them ideal for a variety of cutting tasks.

One of the standout features of the Jonsered CS 2141S and CS 2145S is their powerful engines. The CS 2141S is equipped with a 40.9cc engine, while the CS 2145S boasts a slightly more powerful 45.7cc engine. This difference in engine size translates to enhanced cutting performance, allowing users to tackle larger logs and more demanding jobs with ease. Both models deliver excellent power-to-weight ratios, ensuring that users can work for extended periods without excessive fatigue.

These models also incorporate advanced technologies that elevate their functionality. One notable innovation is the X-Torq engine, which reduces fuel consumption and emissions. This is particularly beneficial for environmentally conscious users, as it helps lessen the ecological footprint without compromising on power or performance. Additionally, the effective anti-vibration system minimizes the impact of vibrations on the user, enhancing comfort and control during operation.

Another key characteristic of the CS 2141S and CS 2145S is their ease of use and maintenance. The Quick Release Air Filtration system allows for efficient cleaning and replacement, ensuring that the engine performs at its best. Furthermore, the chain brake feature provides added safety by automatically stopping the chain in the event of kickback, making these chainsaws safer to operate.

Both models are designed for versatility, featuring adjustable oil pumps that allow users to regulate the flow of bar and chain oil for improved lubrication and extended chain life. The ergonomically designed handles offer optimal grip and control, which is essential for precision cutting.

In summary, the Jonsered CS 2141S and CS 2145S chainsaws are powerful and efficient tools equipped with advanced technologies that promote ease of use, safety, and environmental sustainability. Whether for professional forestry work or home woodcutting projects, these models are reliable choices that deliver outstanding performance and durability.