Husqvarna 340e, 350 Freeing a tree that has fallen badly, Freeing a trapped tree, General advice

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WORKING TECHNIQUES

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.

Freeing a tree that has fallen badly

Freeing a ”trapped tree”

It is very dangerous to remove a trapped tree and there is high accident risk.

Never try to fell the tree that is trapped.

Never work in the risk zone of the hanging trapped tree.

The safest method is to use a winch.

Tractor-mounted

Portable

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!

If you must cut across tree/limb, make two to three cuts, one inch apart, one to two inches deep.

Continue to cut deeper until tree/limb bends and tension is released.

Cut tree/limb from outside the bend, after tension has been released.

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Contents 340 340e 345e KEY to Symbols Symbols on the machineSymbols in the operator’s manual Contents Dear customer IntroductionWhat is what on the chain saw? What is WHAT?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 Vibration damping system Throttle lockChain catcher Right hand guardGeneral rules Stop switchCutting equipment MufflerCutting equipment designed to reduce kickback Sharpening your chain and adjusting depth gauge settingGeneral advice on adjusting depth gauge setting Adjustment of depth gauge settingSharpening cutting teeth Filling with chain oil Tensioning the chainLubricating cutting equipment Chain oilChain drive sprocket Needle bearing lubricationChecking wear on cutting equipment To prolong the life of the bar you should turn it over daily Fitting the bar and chain AssemblyFuel Fuel HandlingLong-term storage Fuel safetyFueling Transport and storageWarm engine Starting and StoppingStarting and stopping Cold engineStopping General working instructions Basic safety rulesWorking Techniques Before useGeneral rules Basic cutting technique GeneralTerms Cutting LimbingClearing the trunk and preparing your retreat Tree felling techniqueSafe distance Felling directionDirectional cuts FellingCutting trees and branches that are in tension General adviceFreeing a tree that has fallen badly Freeing a trapped treeHow to avoid kickback What is kickback?Cutting the trunk into logs Maintenance Carburetor adjustmentGeneral High speed jet H Correctly adjusted carburetorThrottle lock Muffler StarterChanging a broken or worn starter cord Fitting the starter Replacement of broken recoil and drive disc springsAir filter Tensioning the recoil springNeedle bearing lubrication Adjustment of the oil pumpSpark plug Lubricating the bar tip sprocketWinter use Air Injection centrifugal cleaningTemperature 0C 32F or colder Cooling systemDaily maintenance Weekly maintenance Monthly maintenance Maintenance scheduleTechnical data Technical DataSaw chain filing and file gauges Bar and chain combinationsYour Warranty Rights and Obligations Federal Emission Control Warranty StatementOther safety precautions American Standard Safety PrecautionsSafety precautions for chain saw users Kickback safety precautionsPage ´z+R#¶5E¨ Page 1150039-95 ´z+R#¶5E¨ ´z+R#¶5E¨
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