Husqvarna 339XP manual Throttle lock, Chain catcher, Right hand guard

Page 6

SAFETY INSTRUCTIONS

6The way the chain brake is triggered, either manually or automatically, 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).

2 Throttle lock

The throttle lock is designed to prevent accidental opera- tion of the throttle control.

When you press the lock (A) (i.e. when you grasp the handle) it releases the throttle trigger (B).

When you release the handle the throttle trigger 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 when you release the handle.

A

B

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.

7 During felling your left hand grasps the front handle in such a way that it cannot activate the front hand guard. In this position the chain brake can only be activated by the inertia action of the counterweight.

The inertia activated chain brake increases your safety but there are certain factors to remember (see point 6 above).

3 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 section on ”Assembly”) and if the bar and chain are properly serviced and maintained.

(See section on ”General working instructions”).

4 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.

6 – English

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Contents 336 EnglishKEY to Symbols SymbolsContents Safety Instructions Chain SAW Safety EquipmentPersonal Protective Equipment Chain brake and front hand guard 3a StartingThrottle lock Chain catcherRight hand guard Stop switch Vibration damping systemMuffler Checking the inertia brake release Checking brake band wearChecking the front hand guard Checking the brake triggerThrottle lock Cutting Equipment 5 basic rulesSaw chain Cutting equipment designed to minimise kickbackBar Some terms that describe the bar and chainSharpening your chain and adjusting raker clearance General information on sharpening cutting teethSharpening cutting teeth General advice on setting raker clearance Setting the raker clearanceTensioning the chain Lubricating cutting equipment Chain oilFilling with chain oil Lubricating the bar tip sprocket Chain drive sprocketHOW to Avoid Kickback What is kickback?General rules Do not let go of the handlesGeneral Safety Precautions Min m10 ft Basic safety rules General Working InstructionsTerms Basic cutting techniqueGeneral CuttingLimbing Tree felling techniqueSafe distance Felling directionClearing the trunk and preparing your retreat FellingFreeing a Trapped tree Freeing a tree that has fallen badly = high accident riskCutting the trunk into logs Cutting trees and branches that are in tension PreparationsWhat is WHAT? Assembly Mounting guide bar and chainGasoline Fuel HandlingFuelmix Two-stroke oilMin 3 m FuellingChain oil 10ftStart and Stop StartStop Maintenance CarburetorChanging a broken or worn starter cord Starter device assemblyStarter device Tensioning the recoil springSpark plug Adjustment of the oil pumpAir filter MufflerDaily maintenance Cooling systemLong-term storage Weekly maintenance Monthly maintenance Technical Data 336Emission Control Warranty Statement Your Warranty Rights Obligations114 01 2003W07
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