Husqvarna 445e manual Felling cut

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WORKING TECHNIQUES

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.

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 instructions under the heading 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 445e TrioBrake You will ﬁnd the following labels on your chain saw KEY to SymbolsSymbols on the machine Symbols in the operator’s manualContents Dear customer IntroductionWhat is what on the chain saw? What is WHAT?Before using a new chain saw General Safety PrecautionsChain brake and front hand guard Machine′s safety equipmentAlways use common sense Personal protective equipmentGeneral Safety Precautions Chain catcher Throttle lockoutVibration damping system Stop switchCutting equipment Right hand guardChain General rulesCutting equipment designed to reduce kickback BarGeneral information on sharpening cutting teeth Sharpening your chain and adjusting depth gauge settingTensioning the chain Filling with chain oil Lubricating cutting equipmentChecking wear on cutting equipment Checking chain lubricationChain drive sprocket Needle bearing lubricationBar Assembly Fitting the bar and chainWorking with the chain Fuel Fuel HandlingLong-term storage Fuel safetyFueling Transport and storageStarting and Stopping Starting and stoppingStarting Stopping General working instructions Basic safety rulesWorking Techniques Before useGeneral rules Terms Basic cutting techniqueTree felling technique LimbingSafe distance Felling direction Clearing the trunk and preparing your retreatDirectional cuts Felling cut How to avoid kickback What is kickback?Freeing a tree that has fallen badly Cutting the trunk into logs Maintenance Carburetor adjustmentGeneral Checking the brake trigger Checking the inertia brake releaseThrottle lockout Mufﬂer StarterReplacing the starter cord Drive disc spring B Tensioning the recoil springReplacing the return and drive springs Recoil spring aFitting the starter Air ﬁlterSpark plug Lubricating the bar tip sprocketCooling system Air Injection centrifugal cleaningTemperature -5C 23F or colder Needle bearing lubricationDaily maintenance Weekly maintenance Monthly maintenance Maintenance scheduleTechnical data Technical Data058/1,5 mm Bar and chain combinationsSaw chain ﬁling and ﬁle gauges 050/1,3 mmYour Warranty Rights and Obligations Federal Emission Control Warranty StatementOther safety precautions American Standard Safety PrecautionsSafety precautions for chain saw users Kickback safety precautions´z+S23¶5P¨ Page 1151181-95