Jonsered CS 2171WH manual Sharpening cutting teeth

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SAFETY INSTRUCTIONS

•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

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.

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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 front hand guard Right hand guard Stop switchThrottle lock Chain catcherChecking the inertia brake release MufﬂerChecking brake band wear Checking the front hand guardRight hand guard Stop switchThrottle lock Chain catcherMufﬂer Cutting equipmentGeneral rules Cutting equipment designed to minimise kickbackGeneral information on sharpening cutting teeth Sharpening your chain and adjusting raker clearanceChain Some terms that describe the bar and chainSharpening cutting teeth If the raker clearance is too large General advice on setting raker clearanceSetting the raker clearance Tensioning the chainLubricating cutting equipment Chain drive sprocket How to avoid kickbackWhat is kickback? Checking wear on cutting equipmentDo not let go of the handles Starting General safety precautionsTransport and storage Fuel safetyBasic safety rules General working instructionsTerms Basic cutting techniqueGeneral Limbing CuttingClearing the trunk and preparing your retreat Tree felling techniqueSafe distance Felling directionFelling cut Cutting the trunk into logsCutting 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 bumperTwo-stroke oil Fuel HandlingFuel PetrolMin 3 m 10ft Chain oilFuelling Warm engine Starting and StoppingStarting and stopping Cold engineStopping Carburettor with movement limiters MaintenanceCarburettor adjustment Low speed jet L Fine adjustment of the idle speed TCorrectly adjusted carburettor Carburettor without movement limitersIdle speed, rpm Recommended engine speeds are as followsAir ﬁlter StarterMufﬂer Adjustment of the oil pumpWhen making adjustments Spark plugElectrical carburettor heating Centrifugal cleaning TurboCooling system Heated handlesBelow you will ﬁnd some general maintenance instructions Daily maintenance Weekly maintenanceMonthly maintenance Technical data Technical DataLength, inches Pitch, inch Max. number of teeth on Bar and chain combinationsBar Chain EN292-2, Cispr 121997, EN608 EC-declaration of conformityApplies to Europe only Page 1088935-26 ´z*xT¶6U¨ ´z*xT¶6U¨