Husqvarna 450e EPA III, 445e EPA III, 445 EPA III Tree felling technique, Limbing, Safe distance

Page 26

WORKING TECHNIQUES

Limbing

When limbing thick branches you should use the same approach as for cutting.

Cut difﬁcult branches piece by piece.

12

3

Cutting

WARNING! Never attempt to cut logs

! while they are in a pile or when a couple of logs are lying together. Such procedures drastically increase the risk of kickback which can result in a serious or fatal injury.

If you have a pile of logs, each log you attempt to cut should be removed from the pile, placed on a saw horse or runners and cut individually.

Remove the cut pieces from the cutting area. By leaving them in the cutting area, you increase the risk for inadvertently getting a kickback, as well as increasing the risk of losing your balance while working.

The log is lying on the ground. There is little risk of the chain jamming or the object splitting. However there is a risk that the chain will touch the ground when you ﬁnish the cut.

Cut all the way through the log from above. Avoid letting the chain touch the ground as you ﬁnish the cut. Maintain full throttle but be prepared for what might happen.

If it is possible (can you turn the log?) stop cutting about 2/3 of the way through the log.

Turn the log and ﬁnish the cut from the opposite side.

The log is supported at one end. There is a high risk

that it will split.

Start by cutting from below (about 1/3 of the way through).

Finish by cutting from above so that the two cuts meet.

The log is supported at both ends. There is a high risk that the chain will jam.

Start by cutting from above (about 1/3 of the way through).

Finish by cutting from below so that the two cuts meet.

Tree felling technique

IMPORTANT! It takes a lot of experience to fell a tree. Inexperienced users of chain saws should not fell trees. Do not attempt any task beyond your experience level!

Safe distance

The safe distance between a tree that is to be felled and anyone else working nearby is at least 2 1/2 tree lengths. Make sure that no-one else is in this ”risk zone” before or during felling.

26 – English

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

Image 26

Contents EPA III 445e EPA 450e EPA 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 Right hand guard Throttle lockoutChain catcher Vibration damping systemMufﬂer Stop switchCutting equipment General rulesChain Cutting equipment designed to reduce kickbackBar Injuries Some terms that describe the bar and chainSharpening your chain and adjusting depth gauge setting General information on sharpening cutting teethTensioning the chain Which could lead to serious, even fatal injuries Chain oil Lubricating cutting equipment445e, 450e Filling with chain oilNeedle bearing lubrication Checking chain lubricationChain drive sprocket Checking wear on cutting equipmentBar 445 AssemblyFitting the bar and chain 445e, 450eAssembly Fuel Handling FuelTransport and storage Fuel safetyFueling Long-term storageStarting Starting and StoppingStarting and stopping Cold engineStopping Before use Basic safety rulesWorking Techniques General working instructionsGeneral rules Basic cutting technique TermsLog is supported at one end. There is a high risk Tree felling techniqueLimbing Safe distanceDirectional cuts Felling directionClearing the trunk and preparing your retreat Felling cut Freeing a tree that has fallen badly How to avoid kickbackWhat is kickback? Cutting the trunk into logs General MaintenanceCarburetor adjustment Checking the inertia brake release ImmediatelyMufﬂer Tensioning the recoil spring StarterReplacing the starter cord Fitting the starter Air ﬁlterReplacing the return and drive springs Needle bearing lubrication Spark plugLubricating the bar tip sprocket Cooling systemWinter use Air Injection centrifugal cleaningTemperature -5C 23F or colder Maintenance 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 motosierraPrecauciones de seguridad para usuarios de IndiceÍndice Introduccion Apreciado cliente¿QUE ES QUE? ¿Qué es qué en la motosierra?Importante Instrucciones Generales DE SeguridadMedidas a tomar antes de utilizar una motosierra nueva Equipo de seguridad de la máquina Emplee siempre el sentido comúnEquipo de protección personal Freno de cadena con protección contra reculadasInstrucciones Generales DE Seguridad Protección de la mano derecha Fiador del aceleradorCaptor de cadena Botón de parada Equipo de corteSistema amortiguador de vibraciones SilenciadorEspada Reglas básicasEquipo de corte reductor de reculadas CadenaGeneralidades sobre el aﬁlado de los dientes cortantes Generalidades sobre el ajuste de la profundidad de corte Tensado de la cadena Control de la lubricación de la cadena Lubricación del equipo de corteRepostaje de aceite para cadena de motosierra 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 protectoresMontaje Manipulacion DEL Combustible CarburanteTransporte y almacenamiento RepostajeSeguridad en el uso del combustible Almacenamiento prolongadoArranque Arranque Y ParadaArranque y parada Parada Instrucciones generales de trabajo Tecnica DE TrabajoAntes de utilizar la máquina Reglas básicas de seguridadReglas básicas Técnica básica de corte DesignacionesDistancia de seguridad Técnica de talaDesramado Corte de indicación Dirección de derriboCorte de ramas bajas y camino de retirada Corte de derribo ¿Qué es la reculada? Medidas preventivas de las reculadasTratamiento de una tala fallida Tronzado del tronco Ajuste del carburador MantenimientoGeneralidades Control de la función de inercia Detenerse inmediatamenteSilenciador Tensado del muelle de retorno Mecanismo de arranqueCambio del cordón de arranque Montaje del mecanismo de arranque Filtro de aireCambio del muelle de retorno y el muelle de arrastre Lubricación del cojinete de agujas BujíaEngrase del cabezal de rueda de la espada Sistema refrigeranteTemperaturas de -5C 23F o inferiores Depuración centrífuga Air InjectionUtilización en invierno Programa de mantenimiento Datos Tecnicos 445 445e 450eCombinaciones 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 GarantiaLista DE Componentes DE LA Garantia DE Control DE Emisiones Precauciones de seguridad en reculadas Precauciones DE Seguridad DE LA Norma AmericanaPrecauciones de seguridad para usuarios de motosierras Otras precauciones de seguridad115 13 81-96 Rev.3 ´z+SF3¶6U¨ 115 13 81-96 Rev.3 1151381-95