Husqvarna 372XPW 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 only high quality bearing grease or engine oil.

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 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 372XPW You will ﬁnd the following labels on your chain saw KEY to SymbolsSymbols on the machine Symbols in the operator’s manualContents Dear customer IntroductionWhat is what on the chain saw? What is WHAT?General Safety Precautions Before using a new chain sawAlways use common sense Machine′s safety equipment Personal protective equipmentChain brake and front hand guard General Safety Precautions Throttle lock Chain catcherRight hand guard Mufﬂer Stop switchCutting equipment Vibration damping systemSome terms that describe the bar and chain Cutting equipment designed to reduce kickbackBar ChainInstructions considerably increases the risk of kickback Sharpening your chain and adjusting depth gauge settingGeneral information on sharpening cutting teeth Sharpening cutting teethTensioning the chain General advice on adjusting depth gauge settingAdjustment of depth gauge setting If the depth gauge setting is too largeChecking chain lubrication Lubricating cutting equipmentChain oil Filling with chain oilChain drive sprocket Needle bearing lubricationChecking wear on cutting equipment Fitting the bar and chain AssemblyFuel Fuel HandlingLong-term storage Fuel safetyFueling Transport and storageWarm engine Starting and StoppingStarting and stopping Cold engineStopping General working instructions Basic safety rulesWorking Techniques Before useGeneral rules Basic cutting technique GeneralTerms Cutting LimbingClearing the trunk and preparing your retreat Tree felling techniqueSafe distance Felling directionFelling Directional cutsFelling cut Cutting trees and branches that are in tension General adviceFreeing a tree that has fallen badly Freeing a trapped treeHow to avoid kickback What is kickback?Cutting the trunk into logs Maintenance Carburetor adjustmentGeneral Checking the front hand guard Correctly adjusted carburetorHigh speed jet H Checking brake band wearChecking the brake trigger Mufﬂer StarterChanging a broken or worn starter cord Fitting the starter Air ﬁlterTensioning the recoil spring Changing a broken recoil springNeedle bearing lubrication Adjustment of the oil pumpSpark plug Lubricating the bar tip sprocketHeated handles Air Injection centrifugal cleaningTemperature -5C 23F or colder Winter useDaily maintenance Weekly maintenance Monthly maintenance Maintenance scheduleTechnical data Technical DataSaw chain ﬁling and ﬁle gauges 050/1,3 mm058/1,5 mm Your Warranty Rights and Obligations Federal Emission Control Warranty StatementOther safety precautions American Standard Safety PrecautionsSafety precautions for chain saw users Kickback safety precautionsPage ´z+R2G¶5¨ Page 1150183-95 ´z+R2G¶5¨ ´z+R2G¶5¨