Husqvarna 334T, 338XPT manual How to avoid kickback, What is kickback?, Cutting the trunk into logs

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WORKING TECHNIQUES

How to avoid kickback

WARNING! Kickback can happen very

!suddenly and violently; kicking the chain saw, bar and chain back at the user. If this happens when the chain is moving it can cause very serious, even fatal injuries. It is vital you understand what causes kickback and that you can avoid it by taking care and using the right working technique.

What is kickback?

The word kickback is used to describe the sudden reaction that causes the chain saw and bar to jump off an object when the upper quadrant of the tip of the bar, known as the kickback zone, touches an object.

Kickback always occurs in the cutting plane of the bar. Normally the chain saw and bar are thrown backwards and upwards towards the user. However, the chain saw may move in a different direction depending on the way it was being used when the kickback zone of the bar touched the object.

Kickback only occurs if the kickback zone of the bar touches an object.

Limbing

WARNING! A majority of kickback accidents

!occur during limbing. Do not use the kickback zone of the guide bar. Be extremely cautious and avoid contacting the log, other limbs or objects with the nose of the guide bar. Be extremely cautious of limbs under tension. They can spring back toward you and cause loss of control resulting in injury.

Make sure that you can stand and move about safely. Work on the left side of the trunk. Work as close as possible to the chain saw for maximum control. If possible, let the weight of the chain saw rest on the trunk.

Keep the trunk between you and the chain saw as you move along the trunk.

Cutting the trunk into logs

See instructions under the heading Basic cutting technique.

26 – English

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Contents 334T 338XPT Symbols in the operator’s manual KEY to SymbolsSymbols on the machine Contents Introduction Dear customerWhat is WHAT? What is what on the chain saw?Always use common sense General Safety PrecautionsBefore using a new chain saw Chain brake and front hand guard Machine′s safety equipmentPersonal protective equipment General Safety Precautions Chain catcher Stop switchThrottle lock Vibration damping systemGeneral rules Cutting equipmentMufﬂer Cutting equipment designed to reduce kickbackSharpening your chain and adjusting depth gauge setting General information on sharpening cutting teethTensioning the chain General advice on adjusting depth gauge settingAdjustment of depth gauge setting Sharpening cutting teethFilling with chain oil Lubricating cutting equipmentChain oil Checking chain lubricationChain drive sprocket Checking wear on cutting equipmentAssembly Fitting the bar and chainFuel Handling FuelTransport and storage Fuel safetyFueling Long-term storageCold engine Starting and StoppingStarting and stopping Warm engineStopping Before use Basic safety rulesWorking Techniques General working instructionsDo not let go of the handles Terms Basic cutting techniqueGeneral Limbing Felling technique for tree topsCutting Safe distanceFelling Directional cutsCutting trees and branches that are in tension General adviceFreeing a tree that has fallen badly Cutting the trunk into logs How to avoid kickbackWhat is kickback? General MaintenanceCarburetor adjustment Checking the brake trigger Checking brake band wearChecking the front hand guard Mufﬂer Tensioning the recoil spring StarterChanging a broken or worn starter cord Changing a broken recoil springSpark plug Adjustment of the oil pumpAir ﬁlter Lubricating the bar tip sprocketCooling system Maintenance schedule Daily maintenance Weekly maintenance Monthly maintenanceTechnical Data Technical dataSaw chain ﬁling and ﬁle gauges Bar and chain combinations, model 334TBar and chain combinations, model 338XPT Federal Emission Control Warranty Statement Your Warranty Rights and ObligationsKickback safety precautions American Standard Safety PrecautionsSafety precautions for chain saw users Other safety precautions´z+R*G¶55¨ Page 1150103-95 ´z+R*G¶55¨ ´z+R*G¶55¨

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