Husqvarna 3120XP manual Throttle lock, Chain catcher, Right hand guard, Vibration damping system

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Throttle lock

SAFETY INSTRUCTIONS

During felling your left hand grasps the front handle in such a way that it cannot activate the chain brake. In this position, i.e. when your left hand is in such a position that it cannot affect the movement of the front hand guard, the chain brake can only be activated by the inertia of the counterweight.

The inertia activated chain brake is a valuable feature but there are certain factors to remember (see point above).

Throttle lock

The throttle lock is designed to prevent accidental operation of the throttle control. When you press the lock (A) (i.e. when you grasp the handle) it releases the throttle control (B).

When you release the handle the throttle control and the throttle lock both move back to their original positions. This movement is controlled by two independent return springs. This arrangement means that the throttle control is automatically locked at the idle setting.

Chain catcher

The chain catcher is designed to catch the chain if it snaps or jumps off. This should not happen if the chain is properly tensioned (see instructions under the heading Assembly) and if the bar and chain are properly serviced and maintained (see instructions under the heading General working instructions).

Right hand guard

Apart from protecting your hand if the chain jumps or snaps, the right hand guard stops branches and twigs from interfering with your grip on the rear handle.

Vibration damping system

Your machine is equipped with a vibration damping system that is designed to minimize vibration and make operation easier.

When you use a chain saw, vibration is generated by the uneven contact between the chain and the wood you are cutting.

Cutting hardwoods (most broadleaf trees) creates more vibration than cutting softwoods (most conifers). Cutting with cutting equipment that is blunt or faulty (wrong type or badly sharpened) will increase the vibration level. See instructions under the heading Cutting equipment.

The machines vibration damping system reduces the transfer of vibration between the engine unit/cutting equipment and the machines handle unit. The body of the chain saw, including the cutting equipment, is insulated from the handles by vibration damping units.

WARNING! Overexposure to vibration can

!lead to circulatory damage or nerve damage in people who have impaired circulation. Contact your doctor if you experience symptoms of overexposure to vibration. Such symptoms include numbness, loss of feeling, tingling, pricking, pain, loss of strength, changes in skin colour or condition. These symptoms normally appear in the fingers, hands or wrists. The risk increases at low temperatures.

Stop switch

Use the stop switch to switch off the engine.

6 – English

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Contents 3120XP Operator’s manual EPAEnglish KEY TO SYMBOLS Key to symbolsCONTENTS ContentsBefore using a new chain saw SAFETY INSTRUCTIONS Machine′s safety equipmentPersonal protective equipment Chain brake and front hand guard Chain catcher Stop switchThrottle lock Right hand guardChecking the front hand guard MufflerChecking brake band wear Checking the inertia brake releaseChain catcher Stop switchThrottle lock Right hand guardCutting equipment designed to minimise kickback Cutting equipmentGeneral rules MufflerChain Some terms that describe the bar and chainWARNING! The following faults will increase General information on sharpening cutting teethSharpening cutting teeth WARNING! The risk of kickback is increasedGeneral advice on setting raker clearance Setting the raker clearanceTensioning the chain Filling with chain oil Lubricating cutting equipmentChain oil Checking chain lubricationChecking wear on cutting equipment Chain drive sprocketHow to avoid kickback What is kickback?General safety precautions StartingGeneral working instructions Fuel safetyBasic safety rules Transport and storageBasic cutting technique GeneralTerms 12 3 CuttingLimbing Felling direction Tree felling techniqueSafe distance Clearing the trunk and preparing your retreatFelling cut WARNING! Unless you have special trainingCutting the trunk into logs General adviceFreeing a tree that has fallen badly Freeing a ”trapped tree”WHAT IS WHAT? What is what on the chain saw?ASSEMBLY Fitting the bar and chainGasoline FUEL HANDLINGFuel Two-strokeoilFuelling Cold engine STARTING AND STOPPINGStarting and stopping Warm engineStopping 28 – EnglishBasic settings and running in MAINTENANCEFunction, Basic settings, Fine adjustment Fine adjustmentHigh speed jet H Correctly adjusted carburettorStarter Changing a broken or worn starter cordAir filter Spark plugFitting the starter Needle bearing lubrication Adjustment of the oil pumpMuffler Extra chain oilDaily maintenance Weekly maintenanceMonthly maintenance Cooling systemTECHNICAL DATA Technical dataPitch, inch ChainLength, inches Max nose radiusMANUFACTURER′S WARRANTY COVERAGE FEDERAL EMISSION CONTROL WARRANTY STATEMENTYOUR WARRANTY RIGHTS AND OBLIGATIONS OWNER′S WARRANTY RESPONSIBILITIESPage ´z+H7=¶5y¨ ´z+H7=¶5y¨ Page 1140232-95 ´z+H7=¶5y¨ ´z+H7=¶5y¨
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