Jonsered CS 2145S, CS 2141S manual Tree felling technique, Safe distance, Felling direction

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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.

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.

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.

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Contents EPA Operator’s manualSymbols on the machine KEY to SymbolsSymbols in the operator’s manual You will find the following labels on your chain sawContents Dear customer IntroductionWhat is what on the chain saw? What is WHAT?Before using a new chain saw General Safety PrecautionsAlways use common sense Personal protective equipment Machine′s safety equipmentChain brake and front hand guard General Safety Precautions Chain catcher Throttle lockoutRight hand guard Cutting equipment Stop switchVibration damping system MufflerCutting equipment designed to reduce kickback General rulesBar ChainGeneral information on sharpening cutting teeth Sharpening your chain and adjusting depth gauge settingSharpening cutting teeth Instructions considerably increases the risk of kickbackAdjustment of depth gauge setting General advice on adjusting depth gauge settingIf the depth gauge setting is too large Tensioning the chainChain oil Lubricating cutting equipmentFilling with chain oil Checking chain lubricationNeedle bearing lubrication Chain drive sprocketChecking wear on cutting equipment Fitting the bar and chain AssemblyFuel Fuel HandlingChain oil Fueling Fuel safetyTransport and storage Long-term storageStarting and stopping Starting and StoppingCold engine Warm engineStopping Working Techniques Basic safety rulesBefore use General working instructionsGeneral rules General Basic cutting techniqueTerms Cutting LimbingSafe distance Tree felling techniqueFelling direction Clearing the trunk and preparing your retreatDirectional cuts FellingFelling cut Freeing a tree that has fallen badly General adviceFreeing a trapped tree Cutting trees and branches that are in tensionWhat is kickback? How to avoid kickbackCutting the trunk into logs Carburetor adjustment MaintenanceGeneral High speed jet H Correctly adjusted carburetorThrottle lockout Starter MufflerChanging a broken or worn starter cord Air filter Replacement of broken recoil and drive disc springsTensioning the recoil spring Fitting the starterWhen making adjustments Adjustment of the oil pumpSpark plug Lubricating the bar tip sprocket Needle bearing lubricationTemperature 0C 32F or colder Air Injection centrifugal cleaningCooling system Winter useDaily maintenance Weekly maintenance Monthly maintenance Maintenance scheduleTechnical data Technical DataSaw chain filing and file gauges Bar and chain combinations050/1,3 mm 058/1,5 mmYour Warranty Rights and Obligations Federal Emission Control Warranty StatementSafety precautions for chain saw users American Standard Safety PrecautionsKickback safety precautions Other safety precautionsPage ´z+R4G¶5g¨ Page 1150203-95 ´z+R4G¶5g¨ ´z+R4G¶5g¨

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.
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