Husqvarna 339XP manual Chain brake and front hand guard, 3a Starting

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SAFETY INSTRUCTIONS

1 Chain brake and front hand guard

YOUR chain saw is equipped with a chain brake that is desig- ned 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.

3a Starting

The chain brake should be activated when starting.

b You can also use the

chain brake as a

temporary brake when you

change position or if you

put the saw down for a

short time. You should

also apply the chain brake

manually if there is a risk

of the chain accidentally

hitting anyone or anything

close by.

1The chain brake (A) can either be activated manually (by your left hand) or automatically by the inertia release mechanism (a free- swinging pendulum). 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

aspring-loaded mechanism that tightens the Brake Band (C) around the engine drive system (D) (Clutch Drum).

B

A

B

B

C

D

4To release the chain brake pull the front hand guard backwards, towards the front handle.

5As mentioned in section A, 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.

2The front hand guard is not designed solely to activate the chain brake. Another important safety feature is that it prevents the chain from hitting your left hand if you lose your grip on the front handle.

English – 5

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Contents English 336Symbols KEY to SymbolsContents Personal Protective Equipment Safety InstructionsChain SAW Safety Equipment 3a Starting Chain brake and front hand guardRight hand guard Throttle lockChain catcher Muffler Stop switchVibration damping system Checking the front hand guard Checking brake band wearChecking the inertia brake release Checking the brake triggerThrottle lock 5 basic rules Cutting EquipmentBar Cutting equipment designed to minimise kickbackSaw chain Some terms that describe the bar and chainSharpening cutting teeth Sharpening your chain and adjusting raker clearanceGeneral information on sharpening cutting teeth Tensioning the chain General advice on setting raker clearanceSetting the raker clearance Filling with chain oil Lubricating cutting equipmentChain oil Chain drive sprocket Lubricating the bar tip sprocketWhat is kickback? HOW to Avoid KickbackDo not let go of the handles General rules10 ft General Safety PrecautionsMin m General Working Instructions Basic safety rulesGeneral Basic cutting techniqueTerms CuttingSafe distance Tree felling techniqueLimbing Felling directionFelling Clearing the trunk and preparing your retreatCutting the trunk into logs Freeing a tree that has fallen badly = high accident riskFreeing a Trapped tree Cutting trees and branches that are in tension PreparationsWhat is WHAT? Mounting guide bar and chain AssemblyFuelmix Fuel HandlingGasoline Two-stroke oilChain oil FuellingMin 3 m 10ftStop Start and StopStart Carburetor MaintenanceStarter device Starter device assemblyChanging a broken or worn starter cord Tensioning the recoil springAir filter Adjustment of the oil pumpSpark plug MufflerLong-term storage Daily maintenanceCooling system Weekly maintenance Monthly maintenance 336 Technical DataYour Warranty Rights Obligations Emission Control Warranty Statement2003W07 114 01
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