Husqvarna 445e TrioBrake 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.

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Contents 445e TrioBrake Symbols in the operator’s manual KEY to SymbolsSymbols on the machine You will find the following labels on your chain sawContents Introduction Dear customerWhat is WHAT? What is what on the chain saw?General Safety Precautions Before using a new chain sawPersonal protective equipment Machine′s safety equipmentAlways use common sense Chain brake and front hand guardGeneral Safety Precautions Throttle lockout Chain catcherVibration damping system Stop switchRight hand guard MufflerCutting equipment General rulesCutting equipment designed to reduce kickback Sharpening your chain and adjusting depth gauge setting General information on sharpening cutting teethTensioning the chain Lubricating cutting equipment Which could lead to serious, even fatal injuries Chain oilFilling with chain oil Needle bearing lubrication Checking chain lubricationChain drive sprocket Checking wear on cutting equipmentBar Assembly Fitting the bar and chainWorking with the chain Fuel Handling FuelTransport and storage Fuel safetyFueling Long-term storageStarting and Stopping Starting and stoppingStarting Stopping Before use Basic safety rulesWorking Techniques General working instructionsGeneral rules Basic cutting technique TermsTree felling technique LimbingSafe distance Felling direction Clearing the trunk and preparing your retreatDirectional cuts Felling cut How to avoid kickback What is kickback?Freeing a tree that has fallen badly Cutting the trunk into logs Maintenance Carburetor adjustmentGeneral Checking the inertia brake release Checking the brake triggerThrottle lockout Muffler StarterReplacing the starter cord Fitting the starter Tensioning the recoil springReplacing the return and drive springs Recoil spring aLubricating the bar tip sprocket Air filterSpark plug Needle bearing lubricationCooling system Air Injection centrifugal cleaningTemperature -5C 23F or colder Winter useMaintenance schedule Daily maintenance Weekly maintenance Monthly maintenanceTechnical Data Technical data050/1,3 mm Bar and chain combinationsSaw chain filing and file gauges 058/1,5 mmFederal Emission Control Warranty Statement Your Warranty Rights and ObligationsKickback safety precautions American Standard Safety PrecautionsSafety precautions for chain saw users Other safety precautionsSímbolos en el manual de instrucciones Aclaracion DE LOS SimbolosSímbolos en la máquina Etiquetas que se encuentran en la motosierraIndice ÍndicePrecauciones de seguridad para usuarios de Introduccion Apreciado cliente¿QUE ES QUE? ¿Qué es qué en la motosierra?Instrucciones Generales DE Seguridad Medidas a tomar antes de utilizar una motosierra nuevaImportante Equipo de seguridad de la máquina Emplee siempre el sentido comúnEquipo de protección personal Freno de cadena con protección contra reculadasInstrucciones Generales DE Seguridad Fiador del acelerador Captor de cadenaBotón de parada Protección de la mano derechaSistema amortiguador de vibraciones SilenciadorEquipo de corte reductor de reculadas Equipo de corteReglas básicas EspadaExpresiones características de la espada y cadena Generalidades sobre el afilado de los dientes cortantesGeneralidades sobre el ajuste de la profundidad de corte Tensado de la cadena Lubricación del equipo de corte Repostaje de aceite para cadena de motosierraControl de la lubricación de la cadena Control del desgaste del equipo de corte Piñón de arrastre de la cadenaLubricación del cojinete de agujas ¡ATENCION! La mayoría de los¡ATENCION! Para manipular la cadena MontajeMontaje de la espada y la cadena Deben utilizarse guantes protectoresManipulacion DEL Combustible CarburanteTransporte y almacenamiento RepostajeSeguridad en el uso del combustible Almacenamiento prolongadoArranque Y Parada Arranque y paradaArranque Parada Instrucciones generales de trabajo Tecnica DE TrabajoAntes de utilizar la máquina Reglas básicas de seguridadReglas básicas Técnica básica de corte DesignacionesTécnica de tala DesramadoDistancia de seguridad Dirección de derribo Corte de ramas bajas y camino de retiradaCorte de indicación Corte de derribo Medidas preventivas de las reculadas Tratamiento de una tala fallida¿Qué es la reculada? Tronzado del tronco Mantenimiento GeneralidadesAjuste del carburador Control de la función de inercia Control del efecto de frenadoDetenerse inmediatamente Fiador del acelerador Silenciador Mecanismo de arranqueCambio del cordón de arranque Montaje del mecanismo de arranque Tensado del muelle de retornoCambio del muelle de retorno y el muelle de arrastre Muelle de retorno aEngrase del cabezal de rueda de la espada Filtro de aireBujía Lubricación del cojinete de agujasUtilización en invierno Sistema refrigeranteDepuración centrífuga Air Injection Temperaturas de -5C 23F o inferioresPrograma de mantenimiento Datos Tecnicos Datos técnicosCombinaciones de espada y cadena Afilado y calibres de afilado de la cadena de sierraGarantia DEL Sistema DE Control DE Emisiones SUS Derechos Y Obligaciones DE GarantiaPrecauciones de seguridad en reculadas Precauciones DE Seguridad DE LA Norma AmericanaPrecauciones de seguridad para usuarios de motosierras Otras precauciones de seguridad´z+S23¶6X¨ Page 1151181-96
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