Husqvarna 338XPT, 334T manual Freeing a tree that has fallen badly, General advice

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WORKING TECHNIQUES

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!

Limbing

WARNING! Most kickback accidents happen

!during limbing! Pay close attention to the position of the kickback zone of the bar when you are limbing branches that are in tension!

Make sure that you can stand and move about safely. Work on the left side of the trunk. Work as close as possible to the chain saw for maximum control. If possible, let the weight of the chain saw rest on the trunk.

Keep the trunk between you and the chain saw as you move along the trunk.

Freeing a tree that has fallen badly

Cutting trees and branches that are in tension

Preparations:

Work out which side is in tension and where the point of maximum tension is (i.e. where it would break if it was bent even more).

Decide which is the safest way to release the tension and whether you are able to do it safely. In complicated situations the only safe method is to put aside your chain saw and use a winch.

General advice:

Position yourself so that you will be clear of the tree or branch when the tension is released.

Make one or more cuts at or near the point of maximum tension. Make as many cuts of sufficient depth as necessary to reduce the tension and make the tree or branch break at the point of maximum tension.

Never cut straight through a tree or branch that is in tension!

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Contents 334T 338XPT Symbols on the machine KEY to SymbolsSymbols in the operator’s manual Contents 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 Throttle lock Stop switchChain catcher Vibration damping systemMuffler Cutting equipmentGeneral rules Cutting equipment designed to reduce kickbackGeneral information on sharpening cutting teeth Sharpening your chain and adjusting depth gauge settingAdjustment of depth gauge setting General advice on adjusting depth gauge settingTensioning the chain Sharpening cutting teethChain oil Lubricating cutting equipmentFilling with chain oil Checking chain lubricationChecking wear on cutting equipment Chain drive sprocketFitting the bar and chain AssemblyFuel Fuel HandlingFueling Fuel safetyTransport and storage Long-term storageStarting and stopping Starting and StoppingCold engine Warm engineStopping Working Techniques Basic safety rulesBefore use General working instructionsDo not let go of the handles General Basic cutting techniqueTerms Cutting Felling technique for tree topsLimbing Safe distanceDirectional cuts FellingFreeing a tree that has fallen badly General adviceCutting trees and branches that are in tension What is kickback? How to avoid kickbackCutting the trunk into logs Carburetor adjustment MaintenanceGeneral Checking the front hand guard Checking brake band wearChecking the brake trigger Muffler Changing a broken or worn starter cord StarterTensioning the recoil spring Changing a broken recoil springAir filter Adjustment of the oil pumpSpark plug Lubricating the bar tip sprocketCooling system Daily maintenance Weekly maintenance Monthly maintenance Maintenance scheduleTechnical data Technical DataBar and chain combinations, model 338XPT Bar and chain combinations, model 334TSaw chain filing and file gauges Your Warranty Rights and Obligations Federal Emission Control Warranty StatementSafety precautions for chain saw users American Standard Safety PrecautionsKickback safety precautions Other safety precautions´z+R*G¶55¨ Page 1150103-95 ´z+R*G¶55¨ ´z+R*G¶55¨
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