Husqvarna 3120XP manual Chain brake and front hand guard, Safety Instructions

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Chain brake and front hand guard

SAFETY INSTRUCTIONS

Chain brake and front hand guard

Your chain saw is equipped with a chain brake that is designed to stop the chain immediately if you get a kickback. The chain brake reduces the risk of accidents, but only you can prevent them.

Take care when using your saw and make sure the kickback zone of the bar never touches any object.

The chain brake (A) can either be activated manually (by your left hand) or automatically by the inertia release mechanism (a pendulum that swings independently of the chain saw. On most of our models the front hand guard acts as a counterweight in case of kickback).

The brake is applied when the front hand guard (B) is pushed forwards.

This movement activates a spring-loaded mechanism that tightens the brake band (C) around the engine drive system (D) (clutch drum).

The front hand guard is not designed solely to activate the chain brake. Another important feature is that it reduces the risk of the chain hitting your left hand if you lose grip of the front handle.

The chain brake must be engaged when the chain saw is started.

You can also use the chain brake as a temporary brake when you change position or if you put the chain saw down for a short time! Apart from the fact that a chain saw with a chain brake greatly reduces the risk of accidents due to kickback, you should also apply the chain brake manually if there is a risk of the chain accidentally hitting anyone or anything close by.

To release the chain brake pull the front hand guard backwards, towards the front handle.

Kickback can be very sudden and violent. Most kickbacks are minor and do not always activate the chain brake. If this happens you should hold the chain saw firmly and not let go.

The way the chain brake is activated, either manually or automatically by the inertia release mechanism, depends on the force of the kickback and the position of the chain saw in relation to the object that the kickback zone of the bar strikes.

If you get a violent kickback while the kickback zone of the bar is farthest away from you the chain brake will be activated by the movement of the counterweight (inertia activated) in the kickback direction.

If the kickback is less violent or the kickback zone of the bar is closer to you the chain brake will be activated manually by the movement of your left hand.

English – 5

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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 Throttle lock Stop switchChain catcher Right hand guardChecking brake band wear MufflerChecking the front hand guard Checking the inertia brake releaseThrottle lock Stop switchChain catcher Right hand guardGeneral rules Cutting equipmentCutting equipment designed to minimise kickback MufflerSome terms that describe the bar and chain ChainSharpening cutting teeth General information on sharpening cutting teethWARNING! The following faults will increase WARNING! The risk of kickback is increasedTensioning the chain General advice on setting raker clearanceSetting the raker clearance Chain oil Lubricating cutting equipmentFilling with chain oil Checking chain lubricationChain drive sprocket Checking wear on cutting equipmentWhat is kickback? How to avoid kickbackStarting General safety precautionsBasic safety rules Fuel safetyGeneral working instructions Transport and storageTerms Basic cutting techniqueGeneral Limbing 12 3Cutting Safe distance Tree felling techniqueFelling direction Clearing the trunk and preparing your retreatWARNING! Unless you have special training Felling cutFreeing a tree that has fallen badly General adviceCutting the trunk into logs Freeing a ”trapped tree”What is what on the chain saw? WHAT IS WHAT?Fitting the bar and chain ASSEMBLYFuel FUEL HANDLINGGasoline Two-strokeoilFuelling Starting and stopping STARTING AND STOPPINGCold engine Warm engine28 – English StoppingFunction, Basic settings, Fine adjustment MAINTENANCEBasic settings and running in Fine adjustmentStarter Correctly adjusted carburettorHigh speed jet H Changing a broken or worn starter cordFitting the starter Air filterSpark plug Muffler Adjustment of the oil pumpNeedle bearing lubrication Extra chain oilMonthly maintenance Weekly maintenanceDaily maintenance Cooling systemTechnical data TECHNICAL DATALength, inches ChainPitch, inch Max nose radiusYOUR WARRANTY RIGHTS AND OBLIGATIONS FEDERAL EMISSION CONTROL WARRANTY STATEMENTMANUFACTURER′S WARRANTY COVERAGE OWNER′S WARRANTY RESPONSIBILITIESPage ´z+H7=¶5y¨ ´z+H7=¶5y¨ Page 1140232-95 ´z+H7=¶5y¨ ´z+H7=¶5y¨
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