Husqvarna 965167501 Freeing a tree that has fallen badly, Freeing a trapped tree, General advice

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WORKING TECHNIQUES

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.

115 10 82-26 Rev.2 2008-06-03

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Contents English 435 435e 440eSymbols in the operator’s manual KEY to SymbolsSymbols on the machine Contents 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 Stop switchVibration damping system MufflerCutting equipment designed to reduce kickback Cutting equipmentGeneral rules General information on sharpening cutting teeth Sharpening your chain and adjusting depth gauge settingTensioning the chain 435e, 440e 435Which could lead to serious, even fatal injuries Chain oil Lubricating cutting equipmentFilling with chain oil Checking chain lubricationChecking wear on cutting equipment Chain drive sprocketNeedle bearing lubrication Fitting the bar and chain Assembly435 435e, 440eFitting a spike bumper Fuel Fuel HandlingFuelling Fuel safetyTransport and storage Long-term storageStarting Starting and StoppingStarting and stopping Stopping Working Techniques Basic safety rulesBefore use General working instructionsGeneral rules Terms Basic cutting techniqueSafe distance Tree felling techniqueLimbing Directional cuts Felling directionClearing the trunk and preparing your retreat Felling cut Freeing a tree that has fallen badly General adviceFreeing a trapped tree Cutting trees and branches that are in tensionCutting the trunk into logs How to avoid kickbackWhat is kickback? General MaintenanceCarburettor adjustment Immediately Checking the inertia brake releaseMuffler Tensioning the recoil spring StarterReplacing the starter cord Fitting the starter Air filterReplacing the return and drive springs Lubricating the bar tip sprocket Spark plugNeedle bearing lubrication Cooling systemWinter use Air Injection centrifugal cleaningTemperature -5C or colder Daily maintenance Weekly maintenance Monthly maintenance Maintenance scheduleTechnical data Technical DataSaw chain filing and file gauges Bar and chain combinationsEN ISO 12100-22003, Cispr 122005, EN ISO EC-declaration of conformityApplies to Europe only ´z+S6¶68¨ Page 1151082-26