Jonsered Important Needle Bearing Lubrication and Maintenance Instructions for Chainsaws
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SAFETY INSTRUCTIONS

Needle bearing lubrication

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)

Both versions 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.

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.

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.

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 EPA Key to symbols KEY to SymbolsContents EPA Safety Instructions Machine′s safety equipmentPersonal protective equipment Chain brake and front hand guard Right hand guard Stop switchThrottle lock Chain catcherMuffler Checking brake band wearChecking the front hand guard Chain catcher Checking the inertia brake releaseChecking the brake trigger Throttle lockVibration damping system Stop switchCutting equipment General rulesSome terms that describe the bar and chain Cutting equipment designed to minimise kickbackBar ChainWith a badly sharpened chain Sharpening your chain and adjusting raker clearanceGeneral information on sharpening cutting teeth Sharpening cutting teethIf the raker clearance is too large General advice on setting raker clearanceSetting the raker clearance Tensioning the chainChecking chain lubrication Lubricating cutting equipmentChain oil Filling with chain oilNeedle bearing lubrication Checking wear on cutting equipmentChain drive sprocket How to avoid kickback What is kickback?Do not let go of the handles Starting General safety precautionsTransport and storage Fuel safetyBasic safety rules General working instructionsBasic cutting technique GeneralTerms Limbing CuttingClearing the trunk and preparing your retreat Tree felling techniqueSafe distance Felling directionFelling cut Freeing a trapped tree General adviceFreeing a tree that has fallen badly Cutting the trunk into logsWhat is what on the chain saw? What is WHAT?Fitting the bar and chain AssemblyFuel Handling FuelFollowing applies to chain saws with catalytic converters Fuelling Chain oilWarm engine Starting and StoppingStarting and stopping Cold engineStopping Carburettor MaintenanceTensioning the recoil spring Correctly adjusted carburettorStarter Changing a broken or worn starter cordFitting the starter Air filterSpark plug MufflerNeedle bearing lubrication Adjustment of the oil pumpCentrifugal cleaning Turbo When making adjustmentsElectrical carburettor heating CS 2156WH, CS 2159WH Temperature 0 C 32 F or colderTemperature -5C 23 F or colder Heated handles CS 2156W, CS 2159WDaily maintenance Weekly maintenance Monthly maintenanceBelow you will find some general maintenance instructions Technical data Technical DataBar Length Pitch, inch Max nose Chain Inches Radius 050/1,3 mm 20BP063/1,6 mm 22BP Your Warranty Rights and Obligations Federal Emission Control Warranty Statement1088891-95
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