Jonsered CS 2147 manual Sharpening your chain and adjusting raker clearance

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SAFETY INSTRUCTIONS

•Number of drive links.

•Level of kickback reduction. The level of kickback reduction offered by a chain is only indicated by its model number. See the Technical data section to ﬁnd the model numbers of chains that are recommended for use with your model of chain saw.

Sharpening your chain and adjusting raker clearance

WARNING! The risk of kickback is increased

!with a badly sharpened chain!

General information on sharpening cutting teeth

•Never use a blunt chain. When the chain is blunt you have to exert more pressure to force the bar through the wood and the cuttings will be very small. If the chain is very blunt it will not produce any cuttings at all. Wood powder would be the only result.

•A sharp chain eats its way through the wood and produces long, thick cuttings.

•The cutting part of the chain is called the cutting link and this consists of a cutting tooth (A) and the raker lip (B).The cutting depth is determined by the difference in height between the two.

When you sharpen a cutting tooth there are ﬁve important factors to remember.

1 Filing angle

2Cutting angle

3File position

4Round ﬁle diameter

5File depth

It is very difﬁcult to sharpen a chain correctly without the right equipment. We recommend that you use our ﬁle gauge. This will help you obtain the maximum kickback reduction and cutting performance from your chain.

See the Technical data section for information about sharpening your chain.

WARNING! The following faults will increase

!the risk of kickback considerably: File angle too large

Cutting angle too small

File diameter too small

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Contents Operator′s manual Key to symbols KEY to SymbolsContents Personal protective equipment Safety InstructionsMachine′s safety equipment Chain brake and hand guard Right hand guard Stop switchThrottle lock Chain catcherChecking the hand guard MufﬂerChecking brake band wear 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 teeth General advice on setting raker clearanceSetting the raker clearance Tensioning the chainChecking chain lubrication Lubricating cutting equipmentChain oil Filling with chain oilChain drive sprocket Lubricating the bar tip sprocketNeedle bearing lubrication Checking wear on cutting equipmentDo not let go of the handles How to avoid kickbackWhat is kickback? General safety precautions Starting Fuel safetyTransport and storage Basic safety rulesGeneral working instructions Cutting Basic cutting techniqueGeneral TermsFelling direction Tree felling techniqueLimbing Safe distanceFelling cut Clearing the trunk and preparing your retreatFelling Directional cutsCutting the trunk into logs Cutting trees and branches that are in tension General adviceFreeing a tree that has fallen badly Freeing a trapped treeWhat is what on the chain saw? What is WHAT?Working with the chain AssemblyFitting the bar and chain Fitting a spike bumperFollowing applies to chain saws with catalytic converters Fuel HandlingFuel Fuelling Chain oilWarm engine Starting and StoppingStarting and stopping Cold engineStopping Carburettor MaintenanceHigh speed jet H Fine adjustment of the idle speed TCorrectly adjusted carburettor StarterChanging a broken recoil spring Air ﬁlterSpark plug Tensioning the recoil springNeedle bearing lubrication Adjustment of the oil pumpWhen making adjustments MufﬂerWinter use Centrifugal cleaning TurboHeated handles CS 2147W, CS 2152W Electrical carburettor heating CS 2147WH, CS 2152WHBelow you will ﬁnd some general maintenance instructions Daily maintenanceWeekly maintenance Monthly maintenanceTechnical data Technical DataBar and chain combinations Cispr 121997, EN608 EC-declaration of conformityApplies to Europe only Page 1088890-26