Husqvarna 450e General Safety Precautions, Chain, General information on sharpening cutting teeth

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General information on sharpening cutting teeth

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.

12 – English

•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.

115 10 81-26 Rev.2 2008-01-11

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Contents Operator′s manual 445 445e 450eKEY TO SYMBOLS Symbols on the machineSymbols in the operator’s manual CONTENTS ContentsINTRODUCTION 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 guard8 – English Throttle lockout Stop switch Right hand guardVibration damping system MufﬂerCutting equipment General rulesCutting equipment designed to reduce kickback General information on sharpening cutting teeth WARNING! Departure from thesharpening instructions considerably increases the risk of kickbackGeneral advice on adjusting depth gauge setting increased if the depth gauge setting isAdjustment of depth gauge setting Tensioning the chain445e, 450e Lubricating cutting equipment which could lead to serious, even fatal injuriesChain oil Filling with chain oilChain drive sprocket ASSEMBLY Fitting the bar and chainFitting a spike bumper FUEL HANDLING FuelFuel safety FuellingTransport and storage Long-termstorageSTARTING AND STOPPING Starting and stoppingStopping WORKING TECHNIQUES Before useGeneral working instructions 24 – English Basic cutting technique 12 3 Tree felling techniqueFelling direction Clearing the trunk and preparing your retreatFelling Directional cutsFelling cut How to avoid kickback What is kickback?Freeing a tree that has fallen badly Limbing WARNING! A majority of kickback MAINTENANCE Carburettor adjustmentGeneral Checking the inertia brake release Checking the brake triggerimmediately Mufﬂer Starter Replacing the starter cordTensioning the recoil spring Air ﬁlter Replacing the return and drive springsFitting the starter Spark plug Lubricating the bar tip sprocketNeedle bearing lubrication Cooling system”Air Injection” centrifugal cleaning Winter useTemperature -5Cor colder Maintenance schedule Daily maintenanceWeekly maintenance Monthly maintenanceTECHNICAL DATA Technical dataBar and chain combinations Saw chain ﬁling and ﬁle gaugesLength, inch Pitch, inchEC-declarationof conformity Applies to Europe only´z+S,¶6c¨ ´z+S,¶6c¨ Page 1151081-26 ´z+S,¶6c¨ ´z+S,¶6c¨