Husqvarna 3120XP manual General information on sharpening cutting teeth, Sharpening cutting teeth

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WARNING! The risk of kickback is increased

SAFETY INSTRUCTIONS

Sharpening your chain and adjusting raker clearance

WARNING! The risk of kickback is increased

!with a badly sharpened chain!

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 cuttings will be very small. If the chain is very blunt it will not produce any cuttings at all. Wood powder would be the only result.

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 English 3120XPOperator’s manual EPA Key to symbols KEY TO SYMBOLSBefore using a new chain saw CONTENTSContents 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 kickbackSome terms that describe the bar and chain ChainWARNING! The risk of kickback is increased General information on sharpening cutting teethSharpening cutting teeth WARNING! The following faults will increaseTensioning the chain General advice on setting raker clearanceSetting the raker clearance Checking chain lubrication Lubricating cutting equipmentChain oil Filling with chain oilChain drive sprocket Checking wear on cutting equipmentWhat is kickback? How to avoid kickbackStarting General safety precautionsTransport and storage Fuel safetyBasic safety rules General working instructionsTerms Basic cutting techniqueGeneral Limbing 12 3Cutting Clearing the trunk and preparing your retreat Tree felling techniqueSafe distance Felling directionWARNING! Unless you have special training Felling cutFreeing a ”trapped tree” General adviceFreeing a tree that has fallen badly Cutting the trunk into logsWhat is what on the chain saw? WHAT IS WHAT?Fitting the bar and chain ASSEMBLYTwo-strokeoil FUEL HANDLINGFuel GasolineFuelling Warm engine STARTING AND STOPPINGStarting and stopping Cold engine28 – English StoppingFine adjustment MAINTENANCEFunction, Basic settings, Fine adjustment Basic settings and running inChanging a broken or worn starter cord Correctly adjusted carburettorStarter High speed jet HFitting the starter Air filterSpark plug Extra chain oil Adjustment of the oil pumpMuffler Needle bearing lubricationCooling system Weekly maintenanceMonthly maintenance Daily maintenanceTechnical data TECHNICAL DATAMax nose radius ChainLength, inches Pitch, inchOWNER′S WARRANTY RESPONSIBILITIES FEDERAL EMISSION CONTROL WARRANTY STATEMENTYOUR WARRANTY RIGHTS AND OBLIGATIONS MANUFACTURER′S WARRANTY COVERAGEPage ´z+H7=¶5y¨ ´z+H7=¶5y¨ Page 1140232-95 ´z+H7=¶5y¨ ´z+H7=¶5y¨
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