Husqvarna 372XPW manual Sharpening your chain and adjusting depth gauge setting

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GENERAL SAFETY PRECAUTIONS

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.

1 Filing 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.

Sharpening cutting teeth

To sharpen cutting teeth you will need a round ﬁle and a ﬁle gauge. See instructions under the heading Technical data 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 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.

12 – English

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Contents 372XPW 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 sawAlways use common sense Machine′s safety equipment Personal protective equipmentChain brake and front hand guard General Safety Precautions Throttle lock Chain catcherRight hand guard Stop switch Cutting equipmentVibration damping system MufﬂerCutting equipment designed to reduce kickback BarChain Some terms that describe the bar and chainSharpening your chain and adjusting depth gauge setting General information on sharpening cutting teethSharpening cutting teeth Instructions considerably increases the risk of kickbackGeneral advice on adjusting depth gauge setting Adjustment of depth gauge settingIf the depth gauge setting is too large Tensioning the chainLubricating cutting equipment Chain oilFilling with chain oil Checking chain lubricationChain drive sprocket Needle bearing lubricationChecking wear on cutting equipment Assembly Fitting the bar and chainFuel Handling FuelFuel safety FuelingTransport and storage Long-term storageStarting and Stopping Starting and stoppingCold engine Warm engineStopping Basic safety rules Working TechniquesBefore use General working instructionsGeneral rules Basic cutting technique GeneralTerms Limbing CuttingTree felling technique Safe distanceFelling direction Clearing the trunk and preparing your retreatFelling Directional cutsFelling cut General advice Freeing a tree that has fallen badlyFreeing a trapped tree Cutting trees and branches that are in tensionHow to avoid kickback What is kickback?Cutting the trunk into logs Maintenance Carburetor adjustmentGeneral Correctly adjusted carburetor High speed jet HChecking brake band wear Checking the front hand guardChecking the brake trigger Mufﬂer StarterChanging a broken or worn starter cord Air ﬁlter Tensioning the recoil springChanging a broken recoil spring Fitting the starterAdjustment of the oil pump Spark plugLubricating the bar tip sprocket Needle bearing lubricationAir Injection centrifugal cleaning Temperature -5C 23F or colderWinter use Heated handlesMaintenance schedule Daily maintenance Weekly maintenance Monthly maintenanceTechnical Data Technical dataSaw chain ﬁling and ﬁle gauges 050/1,3 mm058/1,5 mm Federal Emission Control Warranty Statement Your Warranty Rights and ObligationsAmerican Standard Safety Precautions Safety precautions for chain saw usersKickback safety precautions Other safety precautionsPage ´z+R2G¶5¨ Page 1150183-95 ´z+R2G¶5¨ ´z+R2G¶5¨