Husqvarna 550XPG, 545 Air filter, Spark plug, Changing a broken recoil spring, Fitting the starter

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MAINTENANCE

Changing a broken recoil spring

•Lift up the starter pulley. See instructions under the heading Changing a broken or worn starter cord. Remember that the recoil spring is coiled under tension in the starter housing.

•Remove the cassette with the recoil spring from the starter.

•Lubricate the recoil spring with light oil. Fit the cassette with recoil spring in the starter. Fit the starter pulley and tension the recoil spring.

Fitting the starter

•To fit the starter, first pull out the starter cord and place the starter in position against the crankcase. Then slowly release the starter cord so that the pulley engages with the pawls.

•Fit and tighten the screws that hold the starter.

Air filter

The air filter must be regularly cleaned to remove dust and dirt in order to avoid:

•Carburettor malfunctions

•Starting problems

•Loss of engine power

•Unnecessary wear to engine parts.

•Excessive fuel consumption.

•Remove the air filter after taking off the air filter cover. When refitting make sure that the air filter seals tightly

against the filter holder. Clean the filter by brushing or shaking it.

The filter can be cleaned more thoroughly by washing it in water and detergent.

An air filter that has been in use for a long time cannot be cleaned completely. The filter must therefore be replaced with a new one at regular intervals. A damaged air filter

must always be replaced.

A HUSQVARNA chain saw can be equipped with different types of air filter according to working conditions, weather, season, etc. Contact your dealer for advice.

Spark plug

The spark plug condition is influenced by:

•An incorrect fuel mixture (too much or incorrect type of oil).

•A dirty air filter.

These factors cause deposits on the spark plug electrodes, which may result in operating problems and starting difficulties.

If the machine is low on power, difficult to start or runs poorly at idle speed: always check the spark plug first before taking any further action. If the spark plug is dirty, clean it and check that the electrode gap is 0,5 mm. The spark plug should be replaced after about a month in operation or earlier if necessary.

Note! Always use the recommended spark plug type! Use of the wrong spark plug can damage the piston/cylinder. Check that the spark plug is fitted with a suppressor.

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Contents Operator′s manual KEY to Symbols Symbols on the machineDecompression valve Symbols in the operator’s manual Contents Dear Customer IntroductionWhat is what on the chain saw? What is WHAT?Before using a new chain saw General Safety PrecautionsAlways use common sense Machine′s safety equipmentPersonal protective equipment Chain brake and front hand guardGeneral Safety Precautions Chain catcher Throttle lockoutRight hand guard Vibration damping systemCutting equipment Stop switchMuffler General rulesCutting equipment designed to reduce kickback Sharpening your chain and adjusting depth gauge setting Tensioning the chain Adjustment of depth gauge settingLubricating cutting equipment Cause serious or even fatal injuryChecking chain lubrication Filling with chain oilChain drive sprocket Needle bearing lubricationChecking wear on cutting equipment Fitting the bar and chain AssemblyFitting a spike bumper Working with the chainFuel Fuel HandlingFueling Fuel safetyTransport and storage Long-term storageStarting and stopping Starting and StoppingStarting Cold engineStopping Working Techniques Basic safety rulesBefore use General working instructionsWorking Techniques Basic cutting technique TermsLimbing Tree felling technique Safe distanceFelling direction Felling cut Clearing the trunk and preparing your retreatFelling Training we advise you not to fell trees Your sawFreeing a tree that has fallen badly General adviceFreeing 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 Spark plug Air filterChanging a broken recoil spring Fitting the starterRunning when making adjustments Adjustment of the oil pumpLubricating the bar tip sprocket Needle bearing lubricationTemperature 0C or colder Air Injection centrifugal cleaningWinter use Heated handlesDaily maintenance Weekly maintenance Monthly maintenance Maintenance scheduleTechnical data Technical Data550XP TrioBrake 550XPG Saw chain filing and file gauges Guide bar and chain combinationsEC-declaration of conformity Applies to Europe onlyEN ISO 12100-2/A12009, Cispr 122007, EN ISO Page Page
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