Jonsered CS 2147 Tensioning the chain, Sharpening cutting teeth, Setting the raker clearance

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SAFETY INSTRUCTIONS

Sharpening cutting teeth

To sharpen cutting teeth you will need a round file and a file gauge. See the Technical data section for information on the size of file and gauge that are recommended for the chain fitted to your chain saw.

•Check that the chain is correctly tensioned. A slack chain will move sideways, making it more difficult to sharpen correctly.

•Always file cutting teeth from the inside face. Reduce the pressure on the return stroke. File all the teeth on one side first, then turn the chain saw over and file the teeth on the other side.

•File all the teeth to the same length. When the length of the cutting teeth is reduced to 4 mm (0.16") the chain is worn out and should be replaced.

General advice on setting raker clearance

•When you sharpen the cutting teeth you reduce the raker clearance (=cutting depth). To maintain optimal cutting performance you must file back the raker lip to the recommended height.

See the Technical data section to find the raker clearance for your particular chain.

•On a low-kickback cutting link the front edge of the raker lip is rounded. It is very important that you maintain this radius or bevel when you adjust the raker clearance.

•We recommend that you use our raker gauge to achieve the correct clearance and bevel on the raker lip.

WARNING! The risk of kickback is increased

!if the raker clearance is too large!

Setting the raker clearance

•Before setting the raker clearance the cutting teeth should be newly sharpened. We recommend that you adjust the raker clearance every third time you sharpen the chain.

NOTE! This recommendation assumes that the length of the cutting teeth is not reduced excessively.

•To adjust the raker clearance you will need a flat file and a raker gauge.

•Place the gauge over the raker lip.

•Place the file over the part of the lip that protrudes through the gauge and file off the excess. The clearance is correct when you no longer feel any resistance as you draw the file over the gauge.

Tensioning the chain

WARNING! A slack chain may jump off and

!cause serious or even fatal injury.

The more you use a chain the longer it becomes. It is therefore important to adjust the chain regularly to take up the slack.

Check the chain tension every time you refuel. NOTE! A new chain has a running-in period during which you should check the tension more frequently.

The position of the chain tensioning screw on our chain saws varies from model to model. See the What is what? section to find out where it is on your model.

12 – English

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Contents Operator′s manual KEY to Symbols Key to symbolsContents Safety Instructions Machine′s safety equipmentPersonal protective equipment Chain brake and hand guard Stop switch Throttle lockChain catcher Right hand guardMuffler Checking brake band wearChecking the hand guard Checking the inertia brake release Checking the brake triggerThrottle lock Chain catcherStop switch Cutting equipmentGeneral rules Vibration damping systemCutting equipment designed to minimise kickback BarChain Some terms that describe the bar and chainSharpening your chain and adjusting raker clearance General information on sharpening cutting teethWith a badly sharpened chain General advice on setting raker clearance Setting the raker clearanceTensioning the chain Sharpening cutting teethLubricating cutting equipment Chain oilFilling with chain oil Checking chain lubricationLubricating the bar tip sprocket Needle bearing lubricationChecking wear on cutting equipment Chain drive sprocketHow to avoid kickback What is kickback?Do not let go of the handles General safety precautions Fuel safety StartingBasic safety rules General working instructionsTransport and storage Basic cutting technique GeneralTerms CuttingTree felling technique LimbingSafe distance Felling directionClearing the trunk and preparing your retreat FellingDirectional cuts Felling cutCutting the trunk into logs General advice Freeing a tree that has fallen badlyFreeing a trapped tree Cutting trees and branches that are in tensionWhat is WHAT? What is what on the chain saw?Assembly Fitting the bar and chainFitting a spike bumper Working with the chainFuel Handling FuelFollowing applies to chain saws with catalytic converters Chain oil FuellingStarting and Stopping Starting and stoppingCold engine Warm engineStopping Maintenance CarburettorFine adjustment of the idle speed T Correctly adjusted carburettorStarter High speed jet HAir filter Spark plugTensioning the recoil spring Changing a broken recoil springAdjustment of the oil pump When making adjustmentsMuffler Needle bearing lubricationCentrifugal cleaning Turbo Heated handles CS 2147W, CS 2152WElectrical carburettor heating CS 2147WH, CS 2152WH Winter useDaily maintenance Weekly maintenanceMonthly maintenance Below you will find some general maintenance instructionsTechnical Data Technical dataBar and chain combinations EC-declaration of conformity Applies to Europe onlyCispr 121997, EN608 Page 1088890-26
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