Husqvarna 115 13 81-26 manual Felling direction, Clearing the trunk and preparing your retreat

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WORKING TECHNIQUES

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.

1

3

2

1

1

2

1Danger zone

2Retreat path

3Felling direction

Felling

WARNING! Unless you have special ! training we advise you not to fell trees

with a diameter larger than the bar length of your saw!

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 cut you begin with the top cut. Aim using to the saw’s felling direction mark (1) toward a goal further forward in the terrain, where you would like the tree to fall (2). Stand on the right-hand side of the tree, behind the saw, and cut with a pull stroke.

115 13 81-26 Rev.3 2009-01-14

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Contents 445 445e 450e 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?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 lockoutMuffler Stop switchRight hand guard Vibration damping systemCutting equipment General rulesCutting equipment designed to reduce kickback General information on sharpening cutting teeth Sharpening your chain and adjusting depth gauge settingTensioning the chain 445e, 450e 445Checking chain lubrication Lubricating cutting equipmentWhich could lead to serious, even fatal injuries Chain oil Filling with chain oilChain drive sprocket Needle bearing lubricationChecking wear on cutting equipment 445e, 450e AssemblyFitting the bar and chain 445Fitting a spike bumper Fuel Fuel HandlingLong-term storage Fuel safetyFuelling Transport and storageCold engine Starting and StoppingStarting and stopping StartingStopping General working instructions Basic safety rulesWorking Techniques Before useGeneral rules Terms Basic cutting techniqueSafe distance Tree felling techniqueLimbing Log is supported at one end. There is a high riskFelling 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 Carburettor adjustmentGeneral Immediately Checking the inertia brake releaseMuffler Starter Replacing the starter cordTensioning the recoil spring Air filter Replacing the return and drive springsFitting the starter Cooling system Spark plugLubricating the bar tip sprocket Needle bearing lubricationAir Injection centrifugal cleaning Temperature -5C or colderWinter use Daily maintenance Weekly maintenance Monthly maintenance Maintenance scheduleTechnical data Technical DataSaw chain filing and file gauges Bar and chain combinationsEC-declaration of conformity Applies to Europe onlyEN ISO 12100-22003, Cispr 122005, EN ISO ´z+SF,¶6+¨ 115 13 81-26 Rev.3 1151381-26
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