Husqvarna 1153137-95 Freeing a tree that has fallen badly, Felling cut, Freeing a trapped tree

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WORKING TECHNIQUES

The directional cuts should run 1/4 of the diameter through the trunk and the angle between the top cut and bottom cut should be 45°.

The line where the two cuts meet is called the directional cut line. This line should be perfectly horizontal and at right angles (90°) to the chosen felling direction.

Felling cut

The felling cut is made from the opposite side of the tree and it must be perfectly horizontal. Stand on the left side of the tree and cut on the pull stroke.

Make the felling cut about 1.5-2 inches (3-5 cm) above the bottom directional cut.

Finish the felling cut parallel with the directional cut line so that the distance between them is at least 1/10 of the trunk diameter. The uncut section of the trunk is called the felling hinge.

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 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

28 – English

1153137-95 Rev.2 2009-12-29

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Contents 455e Rancher Rancher 460 Rancher Symbols on the machine KEY to SymbolsSymbols in the operator’s manual EPA Contents Introduction Dear customerWhat is WHAT? What is what on the chain saw?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 lockout Chain catcherRight hand guard Vibration damping systemStop switch Cutting equipmentMuffler General rulesSharpening your chain and adjusting depth gauge setting Cutting equipment designed to reduce kickbackBar ChainGeneral advice on adjusting depth gauge setting Increased if the depth gauge setting isAdjustment of depth gauge setting Too largeTensioning the chain Bar and cause serious or even fatal injuryRancher, 460 Rancher 455e RancherFilling with chain oil Lubricating cutting equipmentChecking chain lubrication Needle bearing lubrication Chain drive sprocketChecking wear on cutting equipment Assembly Fitting the bar and chainRancher, 460 Rancher 455e RancherAssembly Fuel Handling FuelFuel safety FuelingTransport and storage Long-term storageStarting and Stopping Starting and stoppingCold engine Warm engineStopping Basic safety rules Working TechniquesBefore use General working instructionsGeneral rules Basic cutting technique TermsTree felling technique LimbingLog is supported at one end. There is a high risk Safe distanceClearing the trunk and preparing your retreat Felling directionDirectional cuts Felling cut Freeing a tree that has fallen badlyFreeing a trapped tree How to avoid kickback What is kickback?General advice Cutting trees and branches that are in tensionCutting the trunk into logs Carburetor adjustment MaintenanceGeneral Correctly adjusted carburetor When the bar hits the stump the brake should be appliedChecking brake band wear Checking the front hand guardChecking the brake trigger Starter MufflerChanging a broken or worn starter cord Air filter Tensioning the recoil springChanging a broken recoil spring Fitting the starterAdjustment of the oil pump Spark plugLubricating the bar tip sprocket Needle bearing lubricationAir Injection centrifugal cleaning Temperature 0C 32F or colderTemperature -5C 23F or colder Winter useMaintenance schedule Daily maintenance Weekly maintenance Monthly maintenanceTechnical Data Technical dataSaw chain filing and file gauges Gauge, Saw chain designationFederal Emission Control Warranty Statement Your Warranty Rights and ObligationsMAINTENANCE, Replacement Repair of EMISSION-RELATED Parts American Standard Safety Precautions Safety precautions for chain saw usersKickback safety precautions Other safety precautions1153137-95

1153137-95 specifications

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