Husqvarna 445 EPA III Throttle lockout, Chain catcher, Right hand guard, Vibration damping system

Page 9

GENERAL SAFETY PRECAUTIONS

of the front hand guard, the chain brake can only be activated by the inertia action.

Will my hand always activate the chain brake during a kickback?

No. It takes a certain force to move the hand guard forward. If your hand only lightly touches the front guard or slips over it, the force may not be enough to trigger the chain brake. You should also maintain a firm grip of the chain saw handles while working. If you do and experience a kickback, your hand may never leave the front handle and will not activate the chain brake, or the chain brake will only activate after the saw has swung around a considerable distance. In such instances, the chain brake might not have enough time to stop the saw chain before it touches you.

There are also certain positions in which your hand cannot reach the front hand guard to activate the chain brake; for example, when the saw chain is held in felling position.

Will my inertia activated chain brake always activate during kickback in the event of a kickback?

No. First your brake must be in working order. Testing the brake is simple, see instructions under the heading Checking, maintaining and servicing chain saw safety equipment. We recommend you do before you begin each work session. Second the kickback must be strong enough to activate the chain brake. If the chain brake is too sensitive it would activate all the time which would be a nuisance.

Will my chain brake always protect me from injury in the event of a kickback?

No. First, the chain brake must be in working order to provide the intended protection. Second, it must be activated during the kickback as described above to stop the saw chain. Third, the chain brake may be activated but if the bar is too close to you the brake might not have enough time to slow down and stop the chain before the chain saw hits you.

Only you and proper working technique can eliminate kickback and its danger.

Throttle lockout

The throttle lockout is designed to prevent accidental operation of the throttle control. When you press the lock

(A)(i.e. when you grasp the handle) it releases the throttle control (B). When you release the handle the throttle control and the throttle lockout both move back to their original positions. This arrangement means that the throttle control is automatically locked at the idle setting.

Chain catcher

The chain catcher is designed to catch the chain if it snaps or jumps off. This should not happen if the chain is properly tensioned (see instructions under the heading Assembly) and if the bar and chain are properly serviced and maintained (see instructions under the heading General working instructions).

Right hand guard

Apart from protecting your hand if the chain jumps or snaps, the right hand guard stops branches and twigs from interfering with your grip on the rear handle.

Vibration damping system

Your machine is equipped with a vibration damping system that is designed to reduce vibration and make operation easier.

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

English – 9

Page 8 Page 10
Image 9
Page 8 Page 10
Contents EPA III 445e EPA 450e EPA Symbols on the machine KEY to SymbolsSymbols in the operator’s manual You will find the following labels on your chain sawContents Dear customer IntroductionWhat is what on the chain saw? What is WHAT?Before using a new chain saw General Safety PrecautionsAlways use common sense Machine′s safety equipmentPersonal protective equipment Chain brake and front hand guardGeneral Safety Precautions Chain catcher Throttle lockoutRight hand guard Vibration damping systemCutting equipment Stop switchMuffler General rulesBar Cutting equipment designed to reduce kickbackChain Injuries Some terms that describe the bar and chainGeneral information on sharpening cutting teeth Sharpening your chain and adjusting depth gauge settingTensioning the chain 445e, 450e Lubricating cutting equipmentWhich could lead to serious, even fatal injuries Chain oil Filling with chain oilChain drive sprocket Checking chain lubricationNeedle bearing lubrication Checking wear on cutting equipmentBar Fitting the bar and chain Assembly445 445e, 450eAssembly Fuel Fuel HandlingFueling Fuel safetyTransport and storage Long-term storageStarting and stopping Starting and StoppingStarting Cold engineStopping Working Techniques Basic safety rulesBefore use General working instructionsGeneral rules Terms Basic cutting techniqueLimbing Tree felling techniqueLog is supported at one end. There is a high risk Safe distanceFelling 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 Immediately Checking the inertia brake releaseMuffler Starter Replacing the starter cordTensioning the recoil spring Air filter Replacing the return and drive springsFitting the starter Lubricating the bar tip sprocket Spark plugNeedle bearing lubrication Cooling systemAir Injection centrifugal cleaning Temperature -5C 23F or colderWinter use Daily maintenance Weekly maintenance Monthly maintenance Maintenance scheduleTechnical data Technical DataSaw chain filing and file gauges Bar and chain combinations050/1,3 mm 058/1,5 mmYour Warranty Rights and Obligations Federal Emission Control Warranty StatementSafety precautions for chain saw users American Standard Safety PrecautionsKickback safety precautions Other safety precautionsSímbolos en la máquina Aclaracion DE LOS SimbolosSímbolos en el manual de instrucciones Etiquetas que se encuentran en la motosierraIndice ÍndicePrecauciones de seguridad para usuarios de Apreciado cliente Introduccion¿Qué es qué en la motosierra? ¿QUE ES QUE?Instrucciones Generales DE Seguridad Medidas a tomar antes de utilizar una motosierra nuevaImportante Equipo de protección personal Emplee siempre el sentido comúnEquipo de seguridad de la máquina Freno de cadena con protección contra reculadasInstrucciones Generales DE Seguridad Fiador del acelerador Captor de cadenaProtección de la mano derecha Sistema amortiguador de vibraciones Equipo de corteBotón de parada SilenciadorEquipo de corte reductor de reculadas Reglas básicasEspada CadenaGeneralidades sobre el afilado de los dientes cortantes Generalidades 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 Lubricación del cojinete de agujas Piñón de arrastre de la cadenaControl del desgaste del equipo de corte ¡ATENCION! La mayoría de losMontaje de la espada y la cadena Montaje¡ATENCION! Para manipular la cadena Deben utilizarse guantes protectoresMontaje Carburante Manipulacion DEL CombustibleSeguridad en el uso del combustible RepostajeTransporte y almacenamiento Almacenamiento prolongadoArranque Y Parada Arranque y paradaArranque Parada Antes de utilizar la máquina Tecnica DE TrabajoInstrucciones generales de trabajo Reglas básicas de seguridadReglas básicas Designaciones Técnica básica de corteTécnica 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 Detenerse inmediatamente Control de la función de inerciaSilenciador Mecanismo de arranque Cambio del cordón de arranqueTensado del muelle de retorno Filtro de aire Cambio del muelle de retorno y el muelle de arrastreMontaje del mecanismo de arranque Engrase del cabezal de rueda de la espada BujíaLubricación del cojinete de agujas Sistema refrigeranteDepuración centrífuga Air Injection Utilización en inviernoTemperaturas 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 Precauciones de seguridad para usuarios de motosierras Precauciones DE Seguridad DE LA Norma AmericanaPrecauciones de seguridad en reculadas Otras precauciones de seguridad115 13 81-96 Rev.3 ´z+SF3¶6U¨ 115 13 81-96 Rev.3 1151381-95
Top Page Image Contents