Husqvarna 570 576 XP manual Chain drive sprocket, Needle bearing lubrication

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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.

Needle bearing lubrication

Both versions of sprockets have a needle bearing on the drive shaft, which has to be greased regularly (once a week). CAUTION! Use a high-quality bearing grease or engine oil.

See instructions under the heading Maintenance, Needle bearing lubrication.

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.

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.

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Contents 570 576 XP KEY to Symbols Symbols on the machineSymbols in the operator’s manual Contents Dear Customer IntroductionWhat is what on the chain saw? What is WHAT?Before using a new chain saw General Safety PrecautionsChain brake and front hand guard Machine′s safety equipmentAlways use common sense Personal protective equipmentGeneral Safety Precautions Throttle lockout Chain catcherRight hand guard Muffler Stop switchCutting equipment Vibration damping systemInjuries Some terms that describe the bar and chain Cutting equipment designed to reduce kickbackBar ChainGeneral information on sharpening cutting teeth Sharpening your chain and adjusting depth gauge settingTensioning the chain Checking chain lubrication Lubricating cutting equipmentWhich could lead to serious, even fatal injuries Chain oil Filling with chain oilChain drive sprocket Needle bearing lubricationChecking wear on cutting equipment Working with the chain AssemblyFitting the bar and chain Fitting a spike bumperFuel Fuel HandlingLong-term storage Fuel safetyFuelling Transport and storageWarm engine Starting and StoppingStarting and stopping Cold engineStopping General working instructions Basic safety rulesWorking Techniques Before useGeneral rules Terms Basic cutting techniqueLimbing Clearing the trunk and preparing your retreat Tree felling techniqueSafe distance Felling directionFelling cut Directional cutsFreeing a tree that has fallen badly Freeing a trapped treeCutting trees and branches that are in tension Cutting the trunk into logs How to avoid kickbackWhat is kickback? General adviceMaintenance Carburettor adjustmentGeneral Checking the front hand guard Correctly adjusted carburettorHigh speed jet H Checking brake band wearImmediately Checking the inertia brake releaseMuffler Changing a broken recoil spring StarterChanging a broken or worn starter cord Tensioning the recoil springAir filter Spark plugLubricating the bar tip sprocket Needle bearing lubrication Adjustment of the oil pumpAir Injection centrifugal cleaning Running when making adjustmentsHeated handles Winter useDaily maintenance Weekly maintenance Monthly maintenance Maintenance scheduleTechnical data Technical DataEN ISO 12100-22003, Cispr 122001, EN ISO Bar and chain combinationsSaw chain filing and file gauges EC-declaration of conformity Applies to Europe onlyPage Page ´z+SÆ6¶6w¨ Page 1151002-26
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