Husqvarna 550XPG, 545 manual Basic cutting technique, Terms, Limbing

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WORKING TECHNIQUES

chain use only combinations that are recommended by us. See instructions under the headings Cutting equipment and Technical data.

Basic cutting technique

WARNING! Never use a chain saw by

! holding it with one hand. A chain saw is not safely controlled with one hand. Always have a secure, firm grip around the handles with both hands.

General

•Always use full throttle when cutting!

•Reduce the speed to idle after every cut (running the engine for too long at full throttle without any load, i.e. without any resistance from the chain during cutting, can lead to serious engine damage).

•Cutting from above = Cutting on the pull stroke.

•Cutting from below = Cutting on the push stroke.

Cutting on the push stroke increases the risk of kickback. See instructions under the heading How to avoid kickback.

Terms

Cutting = General term for cutting through wood.

Limbing = Cutting branches off a felled tree.

Splitting = When the object you are cutting breaks off before the cut is complete.

There are five important factors you should consider before making a cut:

1Make sure the cutting equipment will not jam in the cut.

2 Make sure the object you are cutting will not split.

3Make sure the chain will not strike the ground or any other object during or after cutting.

4 Is there a risk of kickback?

5Do the conditions and surrounding terrain affect how safely you can stand and move about?

Two factors decide whether the chain will jam or the object that you are cutting will split: the first is how the object is supported before and after cutting, and the second is whether it is in tension.

In most cases you can avoid these problems by cutting in two stages; from the top and from the bottom.You need to support the object so that it will not trap the chain or split during cutting.

IMPORTANT! If the chain jams in the cut: stop the engine! Don’t try to pull the chain saw free. If you do you may be injured by the chain when the chain saw suddenly breaks free. Use a lever to open up the cut and free the chain saw.

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.

2

1

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

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Contents Operator′s manual KEY to Symbols Symbols on the machineDecompression valve Symbols in the operator’s manual Contents Introduction Dear CustomerWhat is WHAT? What is what on the chain saw?General Safety Precautions Before using a new chain sawMachine′s safety equipment Always use common sensePersonal protective equipment Chain brake and front hand guardGeneral Safety Precautions Throttle lockout Chain catcherRight hand guard Vibration damping systemStop switch Cutting equipmentMuffler General rulesCutting equipment designed to reduce kickback Sharpening your chain and adjusting depth gauge setting Adjustment of depth gauge setting Tensioning the chainLubricating cutting equipment Cause serious or even fatal injuryFilling with chain oil Checking chain lubricationChain drive sprocket Needle bearing lubricationChecking wear on cutting equipment Assembly Fitting the bar and chainFitting a spike bumper Working with the chainFuel Handling FuelFuel safety FuelingTransport and storage Long-term storageStarting and Stopping Starting and stoppingStarting Cold engineStopping Basic safety rules Working TechniquesBefore use General working instructionsWorking Techniques Basic cutting technique TermsLimbing Tree felling technique Safe distanceFelling direction Clearing the trunk and preparing your retreat Felling cutFelling Training we advise you not to fell trees Your sawGeneral advice Freeing a tree that has fallen badlyFreeing a trapped tree Cutting trees and branches that are in tensionHow to avoid kickback What is kickback?Cutting the trunk into logs Maintenance Carburettor adjustmentGeneral Checking the inertia brake release Checking the brake triggerImmediately Muffler Starter Changing a broken or worn starter cordTensioning the recoil spring Air filter Spark plugChanging a broken recoil spring Fitting the starterAdjustment of the oil pump Running when making adjustmentsLubricating the bar tip sprocket Needle bearing lubricationAir Injection centrifugal cleaning Temperature 0C or colderWinter use Heated handlesMaintenance schedule Daily maintenance Weekly maintenance Monthly maintenanceTechnical Data Technical data550XP TrioBrake 550XPG Guide bar and chain combinations Saw chain filing and file gaugesEC-declaration of conformity Applies to Europe onlyEN ISO 12100-2/A12009, Cispr 122007, EN ISO Page Page
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