Jonsered 2116 EL manuel dutilisation Before Felling

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Basic Working Techniques

ENG

SHAPE OF

CROWN

WIND

DIRECTIONSNOW LOAD

LEAN

BEST

KEEP TWICE THE TREE LENGTH AS DISTANCE

CLEAR AWAY THE UNDERBUSH

RETREAT

DIRECTION

OF FALL

Felling

Felling is more than merely cutting down a tree.

You must also decide where you want it to fall and bring it down as close as possible to the intended line of fall without damaging the tree or anything else.

Before Felling

Carefully consider everything which may affect the direction of fall, including:

1.Direction and degree of lean.

2.Shape of crown.

3.Snow load on crown.

4.Wind direction.

5.Obstacles within tree range: e.g. power lines, roads, buildings, other trees, etc.

CAUTION!

Always observe the general condition of the tree.

Look for weakened or rotten sections in the trunk which will make it more likely to give way and start to fall before you expect. Look for dry branches which may break and hit you while you are working.

Always keep animals and people at a distance of at least twice the length of the tree while felling.

Clear away shrubs and branches around the tree.

A path of retreat should be planned and cleared if necessary before beginning to cut. The path of retreat should lead diagonally backwards from the intended line of fall, as illustrated in the figure.

LISH

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Image 28

Contents 2116 EL Safety symbols Before using your new electric chain sawIndex Explanation of Symbols MAXSafety Precautions Safety precautions for electric chain saw usersKickback safety precautions Kickback safety featuresOther Safety Precautions Contact your Authorized Service DealerPower supply and extention cable Safety Precautions for Electric ToolsDouble insulation General Safety General Safety PrecautionsElectric Chain Saw Operator IntroductionCommon Sense Personal Equipment Thrown ObjectsYour condition ClothingBoots Complete Protective HelmetHeavy Duty Gloves Protective Pants or ChapsTechnical specifications User ExplanationChain oil Mounting guide bar and chainChain oil Before each use Start and stopStarting up To stopChain Brake Chain brakeManual activation Inertia activationTesting and maintenance of the chain brake Brake function testInertia-activation function test Motor overload protectionMaintenance Saw maintenanceDaily maintenance Tools and materialsCutting Equipment Recommended cutting equipmentChain Maintenance Sharpening Depth gaugeWhat is kickback ? General Working InstructionsChain brake Does a Chain Brake Work in All Situations and Positions?Pinch Kickback Direction of KickbackProper working techniques Avoiding kickbacksAvoid these situations Use Proper Grip Avoid Unsafe PositionsUse Proper Speed Maintain control over workpieceSmall Nose Radius Bar Avoiding Kickback Your EquipmentLow-Kickback Chain General rules Basic Working TechniquesReactive Forces Boring Cut StepFelling Before FellingBasic Rules for Felling Trees Felling Back CutFelling Cut Trunk Diameter Less than Guide Bar Length Felling Cut Trunk Diameter Greater than Guide Bar LengthFelling Cut Trunk Diameter More than Twice Guide Bar Length Felling Leaning TreesSome Suggestions as to How You can Take Down a Lodged Tree Lodged TreesSimple Hang-Ups Rolling the Tree Techniques DE Travail Élémentaires Arbrisseaux et branchages sous tensionLimbing a tree If the saw jamsHang-Ups Cutting logs or woodCutting Logs Crosscutting/buckingCrosscutting logs, pressure on top Crosscutting logs, pressure on bottomCutting Trees or Limbs Under Tension Small Trees and Limbs Under Tension Usqvarna .ORGE !3