Jonsered CS 2135T manual Directional cuts, Felling cut

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WORKING TECHNIQUES

Felling

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

Use full throttle and bring the bar and chain slowly into the tree. Make sure the tree does not start to move in the opposite direction to your intended felling direction. Drive a wedge or breaking bar into the cut as soon as it is deep enough.

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.

We recommend that you use a bar that is longer than the diameter of the tree, so that you can make the felling cut and directional cuts with single cutting strokes. See the Technical data section to find out which lengths of bar are recommended for your saw.

There are methods for felling trees with a diameter larger than the bar length. However these methods involve a much greater risk that the kickback zone of the bar will come into contact with the tree.

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Contents Operator’s manual EPA KEY to Symbols Symbols on the machineSymbols in the operator’s manual Contents Introduction Dear customerWhat is WHAT? What is what on the chain saw?General Safety Precautions Before using a new chain sawAlways use common sense Machine′s safety equipment Personal protective equipmentChain brake and front hand guard General Safety Precautions Stop switch Throttle lockoutChain catcher Vibration damping systemCutting equipment MufflerGeneral rules Cutting equipment designed to reduce kickbackSharpening your chain and adjusting depth gauge setting General information on sharpening cutting teethGeneral advice on adjusting depth gauge setting Adjustment of depth gauge settingTensioning the chain Sharpening cutting teethLubricating cutting equipment Chain oilFilling with chain oil Checking chain lubricationChain drive sprocket Checking wear on cutting equipmentAssembly Fitting the bar and chainFuel Handling FuelFuel safety FuelingTransport and storage Long-term storageStarting and Stopping Starting and stoppingCold engine Warm engineStopping Basic safety rules Working TechniquesBefore use General working instructionsDo not let go of the handles Basic cutting technique GeneralTerms CuttingFelling technique for tree tops LimbingSafe distance Felling directionFelling Directional cutsFelling cut How to avoid kickback What is kickback?Freeing a tree that has fallen badly Maintenance Carburetor adjustmentGeneral Correctly adjusted carburetor Checking brake band wearChecking the front hand guard Checking the brake triggerMuffler StarterChanging a broken or worn starter cord Air filter Tensioning the recoil springChanging a broken recoil spring Fitting the starterAdjustment of the oil pump When making adjustmentsSpark plug Lubricating the bar tip sprocketMaintenance schedule Daily maintenance Weekly maintenance Monthly maintenanceTechnical Data Technical dataBar and chain combinations Saw chain filing and file gaugesFederal Emission Control Warranty Statement Your Warranty Rights and ObligationsAmerican Standard Safety Precautions Safety precautions for chain saw usersKickback safety precautions Other safety precautions1150324-95 ´z+R@Q¶5x¨ ´z+R@Q¶5x¨

CS 2135T specifications

The Jonsered CS 2135T is a highly regarded chainsaw designed for professionals and serious enthusiasts alike. Renowned for its robust performance and ergonomic design, the CS 2135T stands out in the competitive field of power tools.

One of the main features of the Jonsered CS 2135T is its powerful engine. It is equipped with a 35cc two-stroke engine that delivers excellent power-to-weight ratio. This makes it particularly useful for tasks that require high performance, such as felling trees or cutting firewood. Additionally, the engine is designed with a reliable starting mechanism, ensuring that users can get to work quickly without frustration.

The CS 2135T also employs advanced technology to enhance its efficiency and ease of use. One notable technology is the Clean Power engine system, which reduces harmful emissions while improving fuel efficiency. This is particularly important for users who are conscious about environmental impact and want to minimize their carbon footprint while working.

Another key feature is the Air Injection centrifugal air cleaning system. This system reduces the amount of debris that enters the air filter, prolonging the lifespan of the filter and maintaining optimal engine performance. As a result, users can expect longer filter intervals, which translates to less maintenance work.

Ergonomics play a significant role in the design of the CS 2135T. The chainsaw is equipped with an anti-vibration system that minimizes vibrations felt by the user, making it more comfortable to operate over extended periods. The handles are designed for a secure grip, providing users with better control and reducing fatigue during use.

Safety is also a priority with the Jonsered CS 2135T. It features a chain brake that acts quickly to stop the chain in the event of kickback, protecting the operator from potential injuries. Additionally, the transparent fuel tank allows users to easily monitor fuel levels, preventing unexpected run-outs during work.

In summary, the Jonsered CS 2135T is a high-performance chainsaw that excels in power, efficiency, ergonomics, and safety. Its combination of advanced technologies, user-friendly features, and robust design makes it an excellent choice for anyone looking to tackle demanding cutting tasks with confidence. Whether you're a professional lumberjack or a homeowner looking for a reliable tool, the CS 2135T is built to deliver exceptional results.
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