Husqvarna 240, 235 manuel dutilisation Maintenance, Muffler, Air filter, Spark plug

Page 20

MAINTENANCE

Checking the inertia brake release

With the engine turned off, hold the chain saw over a stump or other firm object. Let go of the front handle so that the bar drops towards the stump as the chain saw rotates around the rear handle.

When the bar hits the stump the brake should be applied. (48)

Checking the brake trigger

Place the chain saw on firm ground and start it. Make sure the chain does not touch the ground or any other object. See the instructions under the heading Start and stop.

Grasp the chain saw firmly, wrapping your fingers and thumbs around the handles.

Apply full throttle and activate the chain brake by tilting your left wrist forward onto the front hand guard. Do not let go of the front handle. The chain should stop immediately.

Throttle lockout

•Make sure the throttle control is locked at the idle setting when the throttle lockout is released.

•Press the throttle lockout and make sure it returns to its original position when you release it.

•Check that the throttle control and throttle lockout move freely and that the return springs work properly.

•Start the chain saw and apply full throttle. Release the throttle control and check that the chain stops and remains stationary. If the chain rotates when the throttle control is in the idle position you should check the carburetor idle adjustment.

Chain catcher

Check that the chain catcher is not damaged and is firmly attached to the body of the chain saw.

Right hand guard

Check that the right hand guard is not damaged and that there are no visible defects, such as cracks.

Vibration damping system

Regularly check the vibration damping units for cracks or deformation.

Make sure the vibration damping units are securely attached to the engine unit and handle unit.

Stop switch

Start the engine and make sure the engine stops when you move the stop switch to the stop setting.

Muffler

Never use a machine that has a faulty muffler. Regularly check that the muffler is securely attached to the machine.

Note: The spark arrestor screen (A) on this machine is serviceable. (49) The screen must be replaced if it is damaged. If the screen is blocked the machine will overheat and this will cause damage to the cylinder and piston. Never use a machine with a muffler that is in poor condition. Never use a muffler if the spark arrestor screen is missing or defective.

For normal homeowner use, the muffler and spark arresting screen will not require replacement. After 75 hours of use, we recommend that your muffler be replaced by your authorized Husqvarna service dealer.

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 (3) after taking off the cylinder cover, screw (1) and filter cover (2).When refitting make sure that the air filter seals tightly against the filter holder. Clean the filter by brushing or shaking it. (50)

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 before taking any further action. If the spark plug is dirty, clean it and check that the electrode gap is 0.020 inch (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.

20 – English

5451546-93 Rev.4 2008-04-16

Page 19 Page 21
Image 20
Page 19 Page 21
Contents 235 5451546-93 Rev.4 OFF Half Full 49 a 5451546-93 Rev.4 Symbols on the machine Thank you for using a Husqvarna productIntroduction Dear customerWhat is what on the chain saw? Contents For Canada General Safety PrecautionsBefore using a new chain saw Machine′s safety equipment Always use common sensePersonal protective equipment Chain brake and front hand guardCutting equipment Sharpening your chain and adjusting depth gauge setting General rulesCutting equipment designed to reduce kickback BarTensioning the chain Lubricating cutting equipmentGeneral Safety Precautions / Assembly Happen when the chain touches the operatorFitting the bar and chain Chain drive sprocketFuel safety Fuel HandlingFuel FuelingFuel Handling / Starting and Stopping Starting and stoppingBasic safety rules Working TechniquesBefore use General working instructionsBasic cutting technique Tree felling techniqueFreeing a tree that has fallen badly Working Techniques / Maintenance How to avoid kickbackCarburetor adjustment GeneralMaintenance MufflerAir filter Spark plugMaintenance schedule Daily maintenance Weekly maintenance Monthly maintenanceTechnical Data Technical dataType Recommended cutting equipment for CanadaBar Chain Federal Emission Control Warranty Statement Your Warranty Rights and ObligationsAmerican Standard Safety Precautions Safety precautions for chain saw usersKickback safety precautions Other safety precautionsNous vous remercions dutiliser un produit Husqvarna Symboles sur la machineCher client Mesures à prendre avant de mettre en usage une Quels sont les composants de la tronçonneuse?Sommaire Instructions Générales DE Sécurité Utilisez toujours votre bon sens Équipement de sécurité de la machineFrein de chaîne avec arceau protecteur AVERTISSEMENT! La plupart desBlocage de l’accélération Capteur de chaîneProtection de la main droite Système anti-vibrationsÉquipement de coupe Règles élémentairesÉquipement de coupe anti-rebond Affûtage et réglage de l’épaisseur du copeau de la chaîneTension de la chaîne Lubrification de l’équipement de coupeInstructions Générales DE Sécurité / Montaje Montage du guide-chaîne et de la chaîneRemplissage de carburant Manipulation DU CarburantCarburant Remisage prolongé Sécurité carburantTransport et rangement Démarrage ET Arrêt Démarrage et arrêtTechniques DE Travail Avant chaque utilisationMéthodes de travail Règles élémentaires de sécuritéTechnique de base pour la coupe AVERTISSEMENT! N’utilisez jamais uneGénéralités TerminologieSolution à un abattage raté Techniques d’abattageMesures anti-rebond Qu’est-ce qu’un rebond?Entretien GénéralitésRéglage du carburateur FonctionnementBougie SilencieuxFiltre à air Schéma d’entretien Entretien hebdomadaireTous lesCaractéristiques Techniques Caractéristiques techniquesÉquipement DE Coupe Recommandé Pour Canada Guide-chaîne ChaîneVOS Droits ET Obligations EN Garantie Précautions à prendre pour se protéger des rebonds Autres consignes de sécuritéAnsi B 175.1-2000 Annexe C AVERTISSEMENT! N’utilisez pas uneSímbolos en la máquina IntroducciónApreciado cliente ¿Qué es qué en la motosierra? Índice Instrucciones Generales DE Seguridad Medidas a tomar antes de utilizar una motosierra nuevaImportante Emplee siempre el sentido comúnEquipo de protección personal Equipo de seguridad de la máquinaFreno de cadena con protección contra reculadas ¡ATENCIÓN! La mayoría de losFiador del acelerador Captor de cadenaProtección de la mano derecha Sistema amortiguador de vibracionesEquipo de corte Reglas básicasEquipo de corte reductor de reculadas EspadaRepostaje de aceite para cadena de motosierra Tensado de la cadenaLubricación del equipo de corte Instrucciones Generales DE Seguridad / Montaje Montaje de la espada y la cadenaManipulacion DEL Combustible CarburanteRepostaje Seguridad en el uso del combustibleManipulacion DEL Combustible / Arrenque Y Parada Arranque y paradaTécnica DE Trabajo Antes de utilizar la máquinaReglas básicas de seguridad Corte con velocidad de cadena alta, acelerando al máxTécnica básica de corte Técnica de talaTratamiento de una tala fallida Ajuste del carburador MantenimientoGeneralidades Bujía SilenciadorFiltro de aire Programa de mantenimiento Datos Tecnicos Datos técnicosEspada Cadena Garantia DEL Sistema DE Control DE Emisiones SUS Derechos Y Obligaciones DE GarantiaPrecauciones DE Seguridad DE LA Norma Americana Precauciones de seguridad para usuarios de motosierrasPrecauciones de seguridad en reculadas Otras precauciones de seguridad5451546-93 2008-04-16

235, 240 specifications

The Husqvarna 235 and 240 chainsaws are compact, lightweight power tools designed for homeowners and occasional users seeking reliability and performance. Known for their ease of use and versatility, both models are ideal for tasks such as pruning, cutting firewood, and clearing small trees.

One of the main features of the Husqvarna 235 and 240 is their X-Torq engine technology. This innovation reduces fuel consumption by up to 20% while also cutting emissions by approximately 75%. This not only makes the chainsaws environmentally friendly but also saves users on fuel costs over time. The engine's design also enhances torque, providing ample power for cutting through wood efficiently.

Both models come equipped with an inertia-activated chain brake, enhancing safety by preventing unwanted chain movement in case of a kickback. The chain brake is a critical feature for novice users, promoting confidence while operating the chainsaw. This focus on safety extends to the easy-to-reach throttle lockout and combined choke/stop control, allowing for simpler starting procedures.

The Husqvarna 235 and 240 feature an adjustable oil pump, which enables users to control the oil flow to the chain according to their specific needs. This functionality not only prolongs the life of the chain and bar but also helps maintain cutting performance, ensuring smoother operation and reduced wear.

These chainsaws also have ergonomic designs, with comfortable handles that minimize vibrations and allow for prolonged use without fatigue. The lightweight structure makes them easily maneuverable, which is particularly beneficial for tasks that require precision casing or reaching difficult areas.

Another noteworthy characteristic is the Tool-less chain tensioning system. This feature allows users to adjust the chain tension quickly and without the need for additional tools, simplifying maintenance and enhancing user experience.

Overall, the Husqvarna 235 and 240 chainsaws are excellent choices for homeowners seeking reliable, efficient, and easy-to-use tools for light to moderate cutting tasks. With advanced features like X-Torq technology, safety mechanisms, and user-friendly designs, they represent a valuable addition to any gardening or outdoor toolkit.
Top Page Image Contents