Husqvarna 334T, 338XPT manual Chain drive sprocket, Checking wear on cutting equipment

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GENERAL SAFETY PRECAUTIONS

Chain drive sprocket

The clutch drum is ﬁtted with one of the following drive sprockets:

ASpur sprocket (the chain sprocket is welded on the drum)

BRim sprocket (replaceable)

Regularly check the degree of wear on the drive sprocket. Replace if wear is excessive. Replace the drive sprocket whenever you replace the chain.

Checking wear on cutting equipment

Check the chain daily for:

•Visible cracks in rivets and links.

•Whether the chain is stiff.

•Whether rivets and links are badly worn.

Replace the saw chain if it exhibits any of the points above.

We recommend you compare the existing chain with a new chain to decide how badly the existing chain is worn.

When the length of the cutting teeth has worn down to only 4 mm (0,16 inch) the chain must be replaced.

Bar

Check regularly:

•Whether there are burrs on the edges of the bar. Remove these with a ﬁle if necessary.

•Whether the groove in the bar has become badly worn. Replace the bar if necessary.

•Whether the tip of the bar is uneven or badly worn. If a hollow forms on the underside of the bar tip this is due to running with a slack chain.

•To prolong the life of the bar you should turn it over daily.

WARNING! Most chain saw accidents

!happen when the chain touches the operator.

Wear personal protective equipment. See instructions under the heading Personal protective equipment.

Do not tackle any job that you feel you are not adequately trained for. See instructions under the headings Personal protective equipment, How to avoid kickback, Cutting equipment and General working instructions.

Avoid situations where there is a risk of kickback. See instructions under the heading Machine′s safety equipment.

Use the recommended protective equipment and check its condition. See instructions under the headings Technical data and General safety precautions.

Check that all the chain saw safety features are working. See instructions under the headings General working instructions and General safety precautions.

14 – 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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