Husqvarna 115 13 81-96, 445e EPA III, 445 EPA III manual Maintenance, General, Carburetor adjustment

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MAINTENANCE

General

The user must only carry out the maintenance and service work described in this manual. More extensive work must be carried out by an authorised service workshop.

Carburetor adjustment

Your Husqvarna product has been designed and manufactured to specifications that reduce harmful emissions.

Function

•The carburetor governs the engine’s speed via the throttle control. Air and fuel are mixed in the carburetor. The air/fuel mixture is adjustable. Correct adjustment is essential to get the best performance from the machine.

•The T-screw regulates the throttle setting at idle speed. If the T-screw is turned clockwise this gives a higher idle speed; turning it anti-clockwise gives a lower idle speed.

Basic settings and running in

The basic carburetor settings are adjusted during testing at the factory. Fine adjustment should be carried out by a skilled technician.

Rec. idle speed: See the Technical data section.

Fine adjustment of the idling speed T

Adjust the idle speed with the T-screw. If it is necessary to re-adjust, turn the T-screw clockwise while the engine is running, until the chain starts to rotate. Then turn counter- clockwise until the chain stops. A correctly adjusted idle speed setting occurs when the engine runs smoothly in every position. It should also be good margin to the rpm when the chain starts to rotate.

WARNING! Contact your servicing

! dealer, if the idle speed setting cannot be adjusted so that the chain stops at idle. Do not use the chain saw until it has been properly adjusted or repaired.

Correctly adjusted carburetor

When the carburetor is correctly adjusted the machine accelerates without hesitation and the machine 4-cycles a little at max. speed. It is also important that the chain does not rotate at idle. If the L-jet is set too lean it may cause starting difficulties and poor acceleration. If the H-jet is set too lean the machine will have less power, poor acceleration and could suffer damage to the engine.

Checking, maintaining and servicing chain saw safety equipment

Note! All servicing and repair work on the machine requires special training. This is especially true of the machine′s safety equipment. If your machine fails any of the checks described below we recommend you to contact our servicing dealer.

Chain brake and front hand guard

Checking brake band wear

Brush off any wood dust, resin and dirt from the chain brake and clutch drum. Dirt and wear can impair operation of the brake.

Regularly check that the brake band is at least 0.024 inch (0.6 mm) thick at its thinnest point.

Checking the front hand guard

Make sure the front hand guard is not damaged and that there are no visible defects such as cracks.

Move the front hand guard forwards and back to make sure it moves freely and that it is securely anchored to the clutch cover.

115 13 81-96 Rev.3 2008-12-16

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Contents EPA III 445e EPA 450e EPA You will find the following labels on your chain saw KEY to SymbolsSymbols on the machine Symbols in the operator’s manualContents Dear customer IntroductionWhat is what on the chain saw? What is WHAT?Before using a new chain saw General Safety PrecautionsChain brake and front hand guard Machine′s safety equipmentAlways use common sense Personal protective equipmentGeneral Safety Precautions Vibration damping system Throttle lockoutChain catcher Right hand guardGeneral rules Stop switchCutting equipment MufflerInjuries Some terms that describe the bar and chain Cutting equipment designed to reduce kickbackBar ChainGeneral information on sharpening cutting teeth Sharpening your chain and adjusting depth gauge settingTensioning the chain Filling with chain oil Lubricating cutting equipment445e, 450e Which could lead to serious, even fatal injuries Chain oilChecking wear on cutting equipment Checking chain lubricationChain drive sprocket Needle bearing lubricationBar 445e, 450e AssemblyFitting the bar and chain 445Assembly Fuel Fuel HandlingLong-term storage Fuel safetyFueling Transport and storageCold engine Starting and StoppingStarting and stopping StartingStopping General working instructions Basic safety rulesWorking Techniques Before useGeneral rules Terms Basic cutting techniqueSafe distance Tree felling techniqueLimbing Log is supported at one end. There is a high riskClearing the trunk and preparing your retreat Felling directionDirectional cuts Felling cut What is kickback? How to avoid kickbackFreeing a tree that has fallen badly Cutting the trunk into logs Carburetor adjustment MaintenanceGeneral Immediately Checking the inertia brake releaseMuffler Replacing the starter cord StarterTensioning the recoil spring Replacing the return and drive springs Air filterFitting the starter Cooling system Spark plugLubricating the bar tip sprocket Needle bearing lubricationTemperature -5C 23F or colder Air Injection centrifugal cleaningWinter use Daily maintenance Weekly maintenance Monthly maintenance Maintenance scheduleTechnical data Technical Data058/1,5 mm Bar and chain combinationsSaw chain filing and file gauges 050/1,3 mmYour Warranty Rights and Obligations Federal Emission Control Warranty StatementOther safety precautions American Standard Safety PrecautionsSafety precautions for chain saw users Kickback safety precautionsEtiquetas que se encuentran en la motosierra Aclaracion DE LOS SimbolosSímbolos en la máquina Símbolos en el manual de instruccionesÍndice IndicePrecauciones de seguridad para usuarios de Apreciado cliente Introduccion¿Qué es qué en la motosierra? ¿QUE ES QUE?Medidas a tomar antes de utilizar una motosierra nueva Instrucciones Generales DE SeguridadImportante Freno de cadena con protección contra reculadas Emplee siempre el sentido comúnEquipo de protección personal Equipo de seguridad de la máquinaInstrucciones Generales DE Seguridad Captor de cadena Fiador del aceleradorProtección de la mano derecha Silenciador Equipo de corteSistema amortiguador de vibraciones Botón de paradaCadena Reglas básicasEquipo de corte reductor de reculadas EspadaGeneralidades sobre el afilado de los dientes cortantes Generalidades sobre el ajuste de la profundidad de corte Tensado de la cadena Repostaje de aceite para cadena de motosierra Lubricación del equipo de corteControl de la lubricación de la cadena ¡ATENCION! La mayoría de los Piñón de arrastre de la cadenaLubricación del cojinete de agujas Control del desgaste del equipo de corteDeben utilizarse guantes protectores MontajeMontaje de la espada y la cadena ¡ATENCION! Para manipular la cadenaMontaje Carburante Manipulacion DEL CombustibleAlmacenamiento prolongado RepostajeSeguridad en el uso del combustible Transporte y almacenamientoArranque y parada Arranque Y ParadaArranque Parada Reglas básicas de seguridad Tecnica DE TrabajoAntes de utilizar la máquina Instrucciones generales de trabajoReglas básicas Designaciones Técnica básica de corteDesramado Técnica de talaDistancia de seguridad Corte de ramas bajas y camino de retirada Dirección de derriboCorte de indicación Corte de derribo Tratamiento de una tala fallida Medidas preventivas de las reculadas¿Qué es la reculada? Tronzado del tronco Generalidades MantenimientoAjuste del carburador Detenerse inmediatamente Control de la función de inerciaSilenciador Cambio del cordón de arranque Mecanismo de arranqueTensado del muelle de retorno Cambio del muelle de retorno y el muelle de arrastre Filtro de aireMontaje del mecanismo de arranque Sistema refrigerante BujíaEngrase del cabezal de rueda de la espada Lubricación del cojinete de agujasUtilización en invierno Depuración centrífuga Air InjectionTemperaturas de -5C 23F o inferiores Programa de mantenimiento 445 445e 450e Datos TecnicosAfilado y calibres de afilado de la cadena de sierra Combinaciones de espada y cadenaSUS Derechos Y Obligaciones DE Garantia Garantia DEL Sistema DE Control DE EmisionesLista DE Componentes DE LA Garantia DE Control DE Emisiones Otras precauciones de seguridad Precauciones DE Seguridad DE LA Norma AmericanaPrecauciones de seguridad para usuarios de motosierras Precauciones de seguridad en reculadas115 13 81-96 Rev.3 ´z+SF3¶6U¨ 115 13 81-96 Rev.3 1151381-95
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