Husqvarna 1153176-26 manual Sharpening your chain and adjusting depth gauge setting

Page 12

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.

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.

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 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 (5/32") the chain is worn out and should be replaced.

min 4 mm (5/32")

General advice on adjusting depth gauge setting

•When you sharpen the cutting tooth (A) the depth gauge setting (C) will decrease. To maintain optimal cutting performance the depth gauge (B) has to be filed down to achieve the recommended depth gauge setting. See instructions under the heading Technical

12 – English

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Contents 385XP 385XPG 390XP 390XPG KEY to Symbols Symbols on the machineSymbols in the operator’s manual Contents 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 lockout Chain catcher Right hand guard Vibration damping systemStop switch Cutting equipmentMuffler General rulesCutting equipment designed to reduce kickback BarChain Injuries Some terms that describe the bar and chainSharpening your chain and adjusting depth gauge setting General information on sharpening cutting teethTensioning the chain Lubricating cutting equipmentFilling with chain oil Checking chain lubricationChain drive sprocket Needle bearing lubricationChecking wear on cutting equipment Assembly Fitting the bar and chainFitting a spike bumper Working with the chainFuel Handling FuelFuel safety FuellingTransport and storage Long-term storageStarting and Stopping Starting and stoppingCold engine Warm engineStopping Basic safety rules Working TechniquesBefore use General working instructionsJam. Always stop the engine before cleaning Basic cutting technique TermsTree felling technique LimbingSafe distance Felling directionClearing the trunk and preparing your retreat Directional cutsFreeing a tree that has fallen badly Felling cutFreeing a trapped tree How to avoid kickback What is kickback?General advice Cutting trees and branches that are in tensionCutting the trunk into logs Maintenance Carburettor adjustmentGeneral Carburettor without movement limiters Recommended engine speeds are as follows When the bar hits the stump the brake should be applied Checking brake band wearChecking the front hand guard Checking the inertia brake releaseChecking the brake trigger ImmediatelyMuffler Starter Changing a broken or worn starter cordTensioning the recoil spring Changing a broken recoil springAir filter Spark plugFitting the starter Must always be replacedAdjustment of the oil pump Lubricating the bar tip sprocketNeedle bearing lubrication Cooling systemAir Injection centrifugal cleaning Temperature 0C or colderWinter use Heated handlesMaintenance schedule Daily maintenance Weekly maintenance Monthly maintenanceTechnical Data Technical dataBar and chain combinations Saw chain filing and file gaugesEC-declaration of conformity Applies to Europe onlyPage Original instructions 1153176-26
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