Husqvarna 340, 345, 350 manual Tree felling technique, Safe distance, Limbing, Felling direction

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SAFETY INSTRUCTIONS

2 The log is supported at one end. There is a high risk that it will split.

AStart by cutting from below (about 1/3 of the way through).

BFinish by cutting from above so that the two cuts meet.

3Tree felling technique

!It takes a lot of experience to fell a tree. Inexperienced users of chain saws should not fell trees. NEVER ATTEMPT A TASK YOU ARE UNSURE OF.

A Safe distance

The safe distance between a tree that is to be felled and anyone else working nearby is at least 21/2 tree lengths.

Make sure that no-one else is in this “risk zone” before or during felling.

3 The log is supported at both ends. There is a high risk that the chain will jam.

AStart by cutting from above (about 1/3 of the way through).

BFinish by cutting from below so that the two cuts meet.

Limbing

When limbing thick branches you should use the same approach as for cutting.

Cut difficult branches piece by piece.

1

2

 

 

3

B Felling direction

The aim is to fell the tree in the best possible position for subsequent limbing and cross-cutting. You want it to fall on ground where you can move about safely.

The main point to avoid is letting the tree fall onto another tree. It can be both difficult and dangerous to remove a tree in such a position (see point 4 in this section).

Once you have decided which way you want the tree to fall you must judge which way the tree would fall naturally.

Several factors affect this:

Lean of the tree

Bend

Wind direction

Arrangement of branches

Weight of snow

You may find you are forced to let the tree fall in its natural direction because it is impossible or dangerous to try to make it fall in the direction you first intended.

Another very important factor, which does not affect the felling direction but does affect your safety, is to make sure the tree has no damaged or dead branches that might break off and hit you during felling.

!During critical felling operations, hearing protectors should be lifted immediately when sawing is completed so that sounds and warning signals can be heard.

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Contents 101 90 340/345/350Symbols KEY to SymbolsContents Chain SAW Safety Equipment Safety InstructionsChain brake and front hand guard Throttle lock Chain catcherRight hand guard Stop switch Vibration damping systemMuffler 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 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 Chain oil Lubricating cutting equipmentFilling with chain oil Never use waste oilChecking chain lubrication Needle bearing maintenanceChecking wear on cutting equipment Lubricating the bar tip sprocketWhat is kickback? HOW to Avoid KickbackGeneral rules Do not let go of the handlesNever use the saw one- handed General Safety Precautions Min m10 ft General Working Instructions Basic safety rulesGeneral Basic cutting techniqueTerms CuttingSafe distance Tree felling techniqueLimbing Felling directionFelling Clearing the trunk and preparing your retreatFreeing a tree that has fallen badly = high accident risk General adviceCutting the trunk into logs Freeing a Trapped treeWhat is what? What is WHAT?Mounting guide bar and chain Assembly340 345/350Fuelmix Fuel HandlingFuelling Min 3 m10ft Start and stop Start and StopStart StopCarburetor MaintenanceStarter device Starter device assemblyChanging a broken or worn starter cord Tensioning the recoil springAdjustment of the oil pump Needle bearing maintenanceAir filter MufflerTemperature -5C or colder Centrifugal cleaning Air InjectionCooling system Winter useWeekly maintenance Daily maintenanceMonthly maintenance 340 345 350 Technical DataYour Warranty Rights Obligations Federal and California Emission Control Warranty Statement1998W48
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