Husqvarna 965167501, 965167936, 965168601 manual Tree felling technique, Limbing, Safe distance

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WORKING TECHNIQUES

The following instructions describe how to handle the commonest situations you are likely to encounter when using a chain saw.

Limbing

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

Cut difficult branches piece by piece.

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3

Cutting

WARNING! Never attempt to cut logs

!while they are in a pile or when a couple of logs are lying together. Such procedures drastically increase the risk of kickback which can result in a serious or fatal injury.

If you have a pile of logs, each log you attempt to cut should be removed from the pile, placed on a saw horse or runners and cut individually.

Remove the cut pieces from the cutting area. By leaving them in the cutting area, you increase the risk for inadvertently getting a kickback, as well as increasing the risk of losing your balance while working.

The log is lying on the ground. There is little risk of the chain jamming or the object splitting. However there is a risk that the chain will touch the ground when you finish the cut.

Cut all the way through the log from above. Avoid letting the chain touch the ground as you finish the cut. Maintain full throttle but be prepared for what might happen.

If it is possible (can you turn the log?) stop cutting about 2/3 of the way through the log.

Turn the log and finish the cut from the opposite side.

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

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

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

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

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

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

Tree felling technique

IMPORTANT! It takes a lot of experience to fell a tree. Inexperienced users of chain saws should not fell trees. Do not attempt any task that you feel unsure of!

Safe distance

The safe distance between a tree that is to be felled and anyone else working nearby is at least 2 1/2 tree lengths. Make sure that no-one else is in this ”risk zone” before or during felling.

26 – English

115 10 82-26 Rev.2 2008-06-03

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Contents 435 435e 440e EnglishSymbols in the operator’s manual KEY to SymbolsSymbols on the machine Contents Introduction Dear CustomerWhat is WHAT? What is what on the chain saw?General Safety Precautions Before using a new chain sawPersonal protective equipment Machine′s safety equipmentAlways use common sense Chain brake and front hand guardGeneral Safety Precautions Throttle lockout Chain catcherVibration damping system Stop switchRight hand guard MufflerCutting equipment designed to reduce kickback Cutting equipmentGeneral rules Sharpening your chain and adjusting depth gauge setting General information on sharpening cutting teethTensioning the chain 435 435e, 440eFilling with chain oil Lubricating cutting equipmentWhich could lead to serious, even fatal injuries Chain oil Checking chain lubricationChecking wear on cutting equipment Chain drive sprocketNeedle bearing lubrication 435 AssemblyFitting the bar and chain 435e, 440eFitting a spike bumper Fuel Handling FuelTransport and storage Fuel safetyFuelling Long-term storageStarting Starting and StoppingStarting and stopping Stopping Before use Basic safety rulesWorking Techniques General working instructionsGeneral rules Basic cutting technique TermsSafe distance Tree felling techniqueLimbing Directional cuts Felling directionClearing the trunk and preparing your retreat Felling cut Freeing a trapped tree General adviceFreeing a tree that has fallen badly Cutting trees and branches that are in tensionCutting the trunk into logs How to avoid kickbackWhat is kickback? General MaintenanceCarburettor adjustment Checking the inertia brake release ImmediatelyMuffler Tensioning the recoil spring StarterReplacing the starter cord Fitting the starter Air filterReplacing the return and drive springs Needle bearing lubrication Spark plugLubricating the bar tip sprocket Cooling systemWinter use Air Injection centrifugal cleaningTemperature -5C or colder Maintenance schedule Daily maintenance Weekly maintenance Monthly maintenanceTechnical Data Technical dataBar and chain combinations Saw chain filing and file gaugesEN ISO 12100-22003, Cispr 122005, EN ISO EC-declaration of conformityApplies to Europe only ´z+S6¶68¨ Page 1151082-26
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