Husqvarna 455e, 455, 460 manual Checking chain lubrication, Chain drive sprocket

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GENERAL SAFETY PRECAUTIONS

Checking chain lubrication

•Check the chain lubrication each time you refuel. See instructions under the heading Lubricating the bar tip sprocket.

Aim the tip of the bar at a light coloured surface about 20 cm (8 inches) away. After 1 minute running at 3/4 throttle you should see a distinct line of oil on the light surface.

If the chain lubrication is not working:

•Check that the oil channel in the bar is not obstructed. Clean if necessary.

•Check that the groove in the edge of the bar is clean. Clean if necessary.

•Check that the bar tip sprocket turns freely and that the lubricating hole in the tip sprocket is not blocked. Clean and lubricate if necessary.

If the chain lubrication system is still not working after carrying out the above checks and associated measures you should contact your service agent.

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.

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Contents 455e Rancher 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?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 lockout Chain catcherRight hand guard Mufﬂer Stop switchCutting equipment Vibration damping systemChain General rulesCutting equipment designed to reduce kickback BarSharpening your chain and adjusting depth gauge setting General information on sharpening cutting teethSharpening cutting teeth Rancher General advice on adjusting depth gauge settingAdjustment of depth gauge setting Tensioning the chainFilling with chain oil Lubricating cutting equipment455e Rancher Chain oilChecking wear on cutting equipment Checking chain lubricationChain drive sprocket Needle bearing lubricationBar 455e Rancher AssemblyFitting the bar and chain RancherFitting a spike bumper Fuel 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 useAlways use a fast cutting speed, i.e. full throttle Basic cutting technique GeneralTerms Cutting LimbingClearing the trunk and preparing your retreat Tree felling techniqueSafe distance Felling directionDirectional cuts FellingCutting 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 Carburettor adjustmentGeneral Checking the front hand guard Correctly adjusted carburettorHigh 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 sprocketCooling system Air Injection centrifugal cleaningTemperature 0C or colder Temperature -5C or colderDaily maintenance Weekly maintenance Monthly maintenance Maintenance scheduleTechnical data Technical DataSaw chain ﬁling and ﬁle gauges Bar and chain combinationsApplies to Europe only EC-declaration of conformity´z+R9¶6x¨ Page 1150250-26 ´z+R9¶6x¨ ´z+R9¶6x¨