Husqvarna 390XPG Air filter, Spark plug, Changing a broken recoil spring, Fitting the starter

Page 34

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 recoil spring from inside the pulley by tapping the pulley lightly with its inside face downwards against a work bench or the like. If the spring pops out during fitting, wind it up again, working from the outside in towards centre.

•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 filters according to working conditions, weather, season, etc. Contact your dealer for advice.

Spark plug

The spark plug condition is influenced by:

•Incorrect carburetor adjustment.

•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

34 – English

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Contents 385XP 385XPG 390XP 390XPG Symbols on the machine KEY to SymbolsSymbols in the operator’s manual EPA Contents Introduction Dear customerWhat is WHAT? What is what on the chain saw?Before using a new chain saw General Safety PrecautionsAlways use common sense Personal protective equipment Machine′s safety equipmentChain brake and front hand guard General Safety Precautions Right hand guard Throttle lockoutChain catcher Vibration damping systemMuffler Stop switchCutting equipment General rulesBar Cutting equipment designed to reduce kickbackChain Sharpening your chain and adjusting depth gauge setting General information on sharpening cutting teethTensioning the chain Lubricating cutting equipmentChain drive sprocket Filling with chain oilChecking chain lubrication Needle bearing lubricationChecking wear on cutting equipment Fitting the bar and chain AssemblyWorking with the chain Fuel Handling FuelTransport and storage Fuel safetyFueling Long-term storageCold engine Starting and StoppingStarting and stopping Warm engineStopping Before use Basic safety rulesWorking Techniques General working instructionsGeneral rules Basic cutting technique TermsSafe distance Tree felling techniqueLimbing Felling directionClearing the trunk and preparing your retreat Directional cutsFreeing a trapped tree Freeing a tree that has fallen badlyFelling cut Cutting trees and branches that are in tensionGeneral advice How to avoid kickbackWhat is kickback? Cutting the trunk into logsCarburetor adjustment MaintenanceGeneral High speed jet H Fine adjustment of the idling speed TCorrectly adjusted carburetor Checking brake band wearChecking the inertia brake release ImmediatelyMuffler Changing a broken or worn starter cord StarterTensioning the recoil spring Changing a broken recoil spring Air filterSpark plug Fitting the starterLubricating the bar tip sprocket Adjustment of the oil pumpWhen making adjustments Needle bearing lubricationWinter use Air Injection centrifugal cleaningTemperature 0C 32F or colder Heated handlesMaintenance schedule Daily maintenance Weekly maintenance Monthly maintenanceTechnical Data Technical data050/1,3 mm Saw chain filing and file gauges058/1,5 mm Federal Emission Control Warranty Statement Your Warranty Rights and ObligationsEmission Controlwarranty Parts List Kickback safety precautions American Standard Safety PrecautionsSafety precautions for chain saw users Other safety precautionsPage Original instructions 1153176-95
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