Husqvarna 445e manual Sharpening your chain and adjusting depth gauge setting

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GENERAL SAFETY PRECAUTIONS

•Number of drive links. The number of drive links is determined by the length of the bar, the chain pitch and the number of teeth on the bar tip sprocket.

•Bar groove width (inches/mm). The groove in the bar must match the width of the chain drive links.

•Chain oil hole and hole for chain tensioner. The bar must be matched to the chain saw design.

Chain

•Chain pitch (inches)

•Drive link width (mm/inches)

•Number of drive links.

Sharpening your chain and adjusting depth gauge setting

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 chips will be very small. If the chain is very blunt it will produce wood powder and no chips or shavings.

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

•The cutting part of the chain is called the cutter and consists of a cutting tooth (A) and the depth gauge (B). The cutters cutting depth is determined by the difference in height between the two (depth gauge setting).

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

1Filing angle

2Cutting angle

3File position

4Round ﬁle diameter

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 instructions under the heading Technical data for information about sharpening your chain.

WARNING! Departure from the

! sharpening instructions considerably

increases the risk of kickback.

12 – English

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Contents 445e TrioBrake KEY to Symbols Symbols on the machineSymbols in the operator’s manual You will ﬁnd the following labels on your chain sawContents Introduction Dear customerWhat is WHAT? What is what on the chain saw?General Safety Precautions Before using a new chain sawMachine′s safety equipment Always use common sensePersonal protective equipment Chain brake and front hand guardGeneral Safety Precautions Throttle lockout Chain catcherStop switch Cutting equipmentRight hand guard Vibration damping systemGeneral rules Cutting equipment designed to reduce kickbackBar ChainSharpening your chain and adjusting depth gauge setting General information on sharpening cutting teethTensioning the chain Lubricating cutting equipment Filling with chain oilChecking chain lubrication Chain drive sprocketNeedle bearing lubrication Checking wear on cutting equipmentBar Assembly Fitting the bar and chainWorking with the chain Fuel Handling FuelFuel safety FuelingTransport and storage Long-term storageStarting and Stopping Starting and stoppingStarting Stopping Basic safety rules Working TechniquesBefore use General working instructionsGeneral rules Basic cutting technique TermsTree felling technique LimbingSafe distance Felling direction Clearing the trunk and preparing your retreatDirectional cuts Felling cut How to avoid kickback What is kickback?Freeing a tree that has fallen badly Cutting the trunk into logs Maintenance Carburetor adjustmentGeneral Checking the inertia brake release Checking the brake triggerThrottle lockout Mufﬂer StarterReplacing the starter cord Tensioning the recoil spring Replacing the return and drive springsRecoil spring a Drive disc spring BAir ﬁlter Spark plugLubricating the bar tip sprocket Fitting the starterAir Injection centrifugal cleaning Temperature -5C 23F or colderNeedle bearing lubrication Cooling systemMaintenance schedule Daily maintenance Weekly maintenance Monthly maintenanceTechnical Data Technical dataBar and chain combinations Saw chain ﬁling and ﬁle gauges050/1,3 mm 058/1,5 mmFederal Emission Control Warranty Statement Your Warranty Rights and ObligationsAmerican Standard Safety Precautions Safety precautions for chain saw usersKickback safety precautions Other safety precautions´z+S23¶5P¨ Page 1151181-95