Husqvarna 550XPG, 545 manual Checking wear on cutting equipment, Guide bar

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GENERAL SAFETY PRECAUTIONS

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 the chain must be replaced.

Guide 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 heading General working instructions.

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

16 – English

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Contents Operator′s manual Symbols on the machine KEY to SymbolsDecompression valve Symbols in the operator’s manual Contents Introduction Dear CustomerWhat is WHAT? What is what on the chain saw?General Safety Precautions Before using a new chain sawMachine′s safety equipment Always use common sensePersonal protective equipment Chain brake and front hand guardGeneral Safety Precautions Throttle lockout Chain catcherRight hand guard Vibration damping systemStop switch Cutting equipmentMufﬂer General rulesCutting equipment designed to reduce kickback Sharpening your chain and adjusting depth gauge setting Adjustment of depth gauge setting Tensioning the chainLubricating cutting equipment Cause serious or even fatal injuryFilling with chain oil Checking chain lubricationChain drive sprocket Needle bearing lubricationChecking wear on cutting equipment Assembly Fitting the bar and chainFitting a spike bumper Working with the chainFuel Handling FuelFuel safety FuelingTransport and storage Long-term storageStarting and Stopping Starting and stoppingStarting Cold engineStopping Basic safety rules Working TechniquesBefore use General working instructionsWorking Techniques Terms Basic cutting techniqueLimbing Safe distance Tree felling techniqueFelling direction Clearing the trunk and preparing your retreat Felling cutFelling Training we advise you not to fell trees Your sawGeneral advice Freeing a tree that has fallen badlyFreeing a trapped tree Cutting trees and branches that are in tensionWhat is kickback? How to avoid kickbackCutting the trunk into logs Carburettor adjustment MaintenanceGeneral Checking the brake trigger Checking the inertia brake releaseImmediately Mufﬂer Changing a broken or worn starter cord StarterTensioning the recoil spring Air ﬁlter Spark plugChanging a broken recoil spring Fitting the starterAdjustment of the oil pump Running when making adjustmentsLubricating the bar tip sprocket Needle bearing lubricationAir Injection centrifugal cleaning Temperature 0C or colderWinter use Heated handlesMaintenance schedule Daily maintenance Weekly maintenance Monthly maintenanceTechnical Data Technical data550XP TrioBrake 550XPG Guide bar and chain combinations Saw chain ﬁling and ﬁle gaugesApplies to Europe only EC-declaration of conformityEN ISO 12100-2/A12009, Cispr 122007, EN ISO Page Page