Husqvarna 1151322-95 manual Felling direction, Clearing the trunk and preparing your retreat

Page 25

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.

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.

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.

D

 

 

 

 

 

 

 

 

 

 

 

a

 

o

 

 

 

 

 

 

direction

n

 

 

 

 

 

 

 

g

 

 

 

 

 

 

 

 

 

 

 

e

 

 

 

 

 

 

 

 

 

 

 

r

 

 

 

 

 

 

 

 

 

 

 

z

n

 

Felling

 

 

 

 

 

 

e

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Retreat path

 

 

 

 

 

 

 

 

 

 

 

 

 

D

 

 

 

 

 

 

 

zone

path

a

 

e

 

 

 

 

n

z

 

Danger

 

 

 

 

 

g

r

 

 

 

 

 

 

 

 

 

o

 

 

 

 

 

 

 

 

 

 

 

n

 

 

 

 

 

Retreat

 

 

 

 

 

e

 

 

 

 

 

 

 

 

 

 

 

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.

English 25

Image 25
Contents English 365 372XPSymbols on the machine KEY to SymbolsSymbols in the operator’s manual You will find the following labels on your chain sawContents Dear customer IntroductionWhat is what on the chain saw? What is WHAT?Before using a new chain saw General Safety PrecautionsAlways use common sense Machine′s safety equipmentPersonal protective equipment Chain brake and front hand guardGeneral Safety Precautions Chain catcher Throttle lockoutRight hand guard Vibration damping systemCutting equipment Stop switchMuffler General rulesBar Cutting equipment designed to reduce kickbackChain General information on sharpening cutting teeth Sharpening your chain and adjusting depth gauge settingTensioning the chain Filling with chain oil Lubricating cutting equipmentChecking chain lubrication Needle bearing lubrication Chain drive sprocketChecking wear on cutting equipment Fitting the bar and chain AssemblyWorking with the chain Fuel 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 instructions General rules Terms Basic cutting techniqueLimbing Tree felling techniqueLog is supported at one end. There is a high risk Safe distanceClearing the trunk and preparing your retreat Felling directionDirectional cuts Felling cut What is kickback? How to avoid kickbackFreeing a tree that has fallen badly Cutting the trunk into logs Carburetor adjustment MaintenanceGeneral High speed jet H Correctly adjusted carburetorChecking brake band wear Checking the front hand guardImmediately Checking the inertia brake releaseMuffler Changing a broken or worn starter cord StarterTensioning the recoil spring Changing a broken recoil spring Air filterFitting the starter Must always be replacedWhen making adjustments Adjustment of the oil pumpSpark plug Lubricating the bar tip sprocketTemperature -5C 23F or colder Air Injection centrifugal cleaningCooling system Winter useCanada Electrical carburetor heatingOther countries Daily maintenance Weekly maintenance Monthly maintenance Maintenance scheduleTechnical data Technical DataSaw chain filing and file gauges Your Warranty Rights and Obligations Federal Emission Control Warranty StatementSafety precautions for chain saw American Standard Safety PrecautionsOther safety precautions Kickback safety precautionsPage 1151322-95