Husqvarna 346XP EPA II, 353 EPA I manual Felling, Directional cuts

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SAFETY INSTRUCTIONS

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 3-5 cm (1.5-2 inches) 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.

WARNING! Unless you have special training

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

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Contents Operator’s manual EPA Key to symbols KEY to SymbolsContents Please read the operator’s manual carefully Before using a new chain sawSafety Instructions Machine′s safety equipmentPersonal protective equipment Chain brake and front hand guard Throttle lock Stop switchChain catcher Right hand guardChecking brake band wear MufflerChecking the front hand guard Checking the inertia brake releaseThrottle lock Stop switchChain catcher Right hand guardGeneral rules Cutting equipmentCutting equipment designed to minimise kickback BarSharpening your chain and adjusting raker clearance Some terms that describe the bar and chainGeneral information on sharpening cutting teeth General advice on setting raker clearance Setting the raker clearanceSharpening cutting teeth Lubricating cutting equipment Tensioning the chainChain oil Filling with chain oilLubricating the bar tip sprocket Checking chain lubricationNeedle bearing lubrication Checking wear on cutting equipmentWhat is kickback? How to avoid kickbackGeneral safety precautions Fuel safety StartingTransport and storage General working instructions Basic safety rules Basic cutting technique GeneralCutting Limbing Tree felling techniqueSafe distance Felling directionDirectional cuts FellingFreeing a tree that has fallen badly General adviceCutting the trunk into logs Freeing a trapped treeWhat is what on the chain saw? What is WHAT?Fitting the bar and chain AssemblyFuel Handling FuelFollowing applies to chain saws with catalytic converters Fuelling Chain oilFuel Handling Starting and stopping Starting and StoppingCold engine Warm engineStopping Carburettor MaintenanceStarter Correctly adjusted carburettorChanging a broken or worn starter cord Tensioning the recoil springSpark plug Air filterMuffler Fitting the starterAir Injection centrifugal cleaning Adjustment of the oil pumpNeedle bearing lubrication Cooling systemTemperature -5C 23 F or colder Temperature 0 C 32 F or colderHeated handles Electrical carburettor heatingWeekly maintenance Daily maintenanceMonthly maintenance Below you will find some general maintenance instructionsTechnical data Technical DataBar Chain Length, inches Pitch, inch Max nose radius Your Warranty Rights and Obligations Federal Emission Control Warranty StatementEmission Control Warranty Parts List 1140204-95
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