Husqvarna 61, 268 manual Freeing a tree that has fallen badly = high accident risk

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SAFETY INSTRUCTIONS

We recommend that you use a bar that is longer than the diameter of the tree, so that you can make the FELLING CUT and DIRECTIONAL CUT with single cutting stokes. (See ”Technical data” to find out which lengths of bar are recommended for your saw).

There are methods for felling trees with a diameter larger than the bar length. However these methods involve a much greater risk that the kickback zone of the bar will come into contact with the tree.

UNLESS YOU HAVE SPECIAL TRAINING WE ADVISE YOU NOT TO FELL TREES WITH A DIAMETER LARGER THAN THE BAR LENGTH OF YOUR SAW!

E Limbing

MOST KICKBACK ACCIDENTS HAPPEN DURING LIMBING!PAY CLOSE ATTENTION TO THE POSITION OF THE KICKBACK ZONE OF THE BAR WHEN YOU ARE LIMBING BRANCHES THAT ARE IN TENSION!

Make sure there are no obstacles in your way. Work on the left side of the trunk. Work close to the saw for maximum control. If possible, let the weight of the saw rest on the trunk.

Keep the tree between you and the saw as you move along the trunk.

F Cutting the trunk into logs

See chapter ”General working instructions” point 2 ”Basic cutting technique”.

4Freeing a tree that has fallen badly = high accident risk

AFreeing a “Trapped tree”

The safest method is to use a winch.

A Tractor-mounted

B Portable

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BCutting trees and branches that are in tension Preparations:

a)Work out which way the tree or branch will move if released and where the natural “BREAKING POINT” is (i.e. the place it would break if it was bent even more).

b)Decide which is the SAFEST way to release the tension and whether YOU are able to do it safely. In complicated situations the only safe method is to put aside your chain saw and use a winch.

General advice:

a) Position yourself so that you will be clear of the tree or branch when it springs free.

b)Make one or more cuts at or near the BREAKING

POINT. Make as many cuts of sufficient depth as necessary to reduce the tension and make the tree or branch break at the

BREAKING POINT.

Never cut straight through a tree or branch that is IS in tension!

English – 23

Image 23 Contents
English Operator´s manualSymbols in the operator’s manual KEY to SymbolsSymbols on the chain saw Contents Personal Protective Equipment Safety Instructions3a Starting Chain brake and front hand guardRight hand guard Throttle lockChain catcher Muffler Stop switchVibration damping system Checking the brake trigger Checking brake band wearChecking the front hand guard Checking the inertia brake releaseThrottle lock 5 basic rules Cutting EquipmentSome terms that describe the bar and chain Cutting equipment designed to minimise kickbackBar Saw 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 Lubricating the bar tip sprocket Checking chain lubricationLubricating the clutch drum bearing Checking wear on cutting equipmentWhat is kickback? HOW to Avoid KickbackDo not let go of the handles General rulesGeneral Safety Precautions 10 ft Basic safety rules Min m Cutting Basic cutting techniqueGeneral TermsFelling direction Tree felling techniqueSafe distance LimbingFelling Clearing the trunk and preparing your retreatCutting trees and branches that are in tension Preparations Freeing a tree that has fallen badly = high accident riskCutting the trunk into logs Freeing a Trapped treeWhat is WHAT? Fitting a spike bumper AssemblyMounting guide bar and chain Fuelmix Fuel Handling10ft FuellingMin 3 m Warm engine Start and StopStart Cold engineCarburettor MaintenanceTensioning the recoil spring Starter device assemblyStarter device Changing a broken or worn starter cordMuffler Adjusting the oil pumpAir filter Spark plugCooling system Needle bearing maintenanceTemperature 0oC 32oF or colder Temperature -5oC 23oF or colderMonthly maintenance Weekly maintenance Daily maintenanceBar and chain combinations Technical Data268 EC-declaration of conformity Applies to Europe only 2002W02 114 00