Hitachi DV 20VB instruction manual Maintenance and Inspection

Page 14

English

MAINTENANCE AND INSPECTION

WARNING: Be sure to switch power OFF and disconnect the plug from the receptacle during maintenance and inspection.

1.Inspecting the drill bits

Since use of a dull tool will cause motor malfunctioning and degraded efficiency, replace the drill bit with a new one or resharpening without delay when abrasion is noted.

2.Inspecting the mounting screws

Regularly inspect all mounting screws and ensure that they are properly tightened. Should any of the screws be loosened, retighten them immediately.

WARNING: Using this hammer drill with loosen screws is extremely dangerous.

3.Keeping after use

When not in use, the Power tool should be kept in a dry place out of the reach of children.

4.Inspecting the carbon brushes

For your continued safety and electrical shock protection, carbon brush inspection and replacement on this tool should ONLY be performed by a HITACHI AUTHORIZED SERVICE CENTER.

5.Maintenance of the motor

The motor unit winding is the very “heart”’ of the power tool. Exercise due care to ensure the winding does not become damaged and/or wet with oil or water.

6.Service and repairs

All quality power tools will eventually require servicing or replacement of parts because of wear from normal use. To assure that only authorized replacement parts will be used, all service and repairs must be performed by a HITACHI AUTHORIZED SERVICE CENTER, ONLY.

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Contents Avertissement Hammer Drill Marteau Perforateur Martillo ROTO-PERCUTORContents Meanings of Signal Words Important InformationSafety General Safety RulesNever operate without all guards in place Use right toolOperate power tools at the rated voltage Blades and accessories must be securely mounted to the toolKeep motor air vent clean Handle tool correctlySpecific Safety Rules and Symbols Make Them Available to Other Users of this Tool Double Insulation for Safer OperationFunctional Description Name of PartsPrior to Operation Assembly and OperationApplications Fixing the side handle Fig For keyless chuck Mounting the bitConfirm the direction of bit rotation Impact to Rotation changeover FigHigh-speed/Low-speed changeover When using as a Drill or a Hammer Drill HOW to USEOperation of switch Maintenance and Inspection Drill bit for concrete and stone AccessoriesStandard Accessories Informations Importantes Signification DES Mots D’AVERTISSEMENTConserver CES Instructions SecuriteRegles Generale DE Securite Français Utiliser l’outil motorisé à la tension nominale Ne jamais toucher les parties mobilesGarder propres les évents d’air du moteur Regles DE Securite Specifiques ET Symboles Ne pas essuyer les parties en plastique avec du solvantDouble Isolation Pour UN Fonctionnement Plus SUR NOM DES Parties SpecificationsDescription Fonctionnelle RemarqueAvant L’UTILISATION Fixation de la poignée latérale Fig Verifiez la direction de rotation de la mèche PrecautionCommutation grande vitesse/faible vitesse PremarqueUtilisation Fonctionnement de l’interrupteurEntretien ET Inspection Mèche pour béton et pierre AccessoiresAccessoires Standard Información Importante Significado DE LAS Palabras DE SeñalizaciónGuarde Estas Instrucciones SeguridadNormas Generales DE Seguridad Seguridad eléctricaEspañol Maneje correctamente la herramienta No toque nunca las piezas móvilesUtilice la herramienta correcta Maneje con cuidado las herramientas eléctricasNormas Y Símbolos Específicos DE Seguridad No limpie las partes de plástico con disolventeAislamiento Doble Para Ofrecer UNA Operación MÁS Segura Nota Descripción FuncionalNomenclatura Antes DE LA Operación Montaje Y OperaciónAplicaciones Montar el asidero lateral Fig Confirmar la dirección de rotación de la broca Alteración de Impacto a Rotacion FigAlteración velocidad alta/velocidad baja PrecauciónUso como taladro común o taladro de impacto Como SE USAOperación del interruptor PrecaucionMantenimiento E Inspección Broca para hormigón y piedra AccesoriosAccesorios Estándar Page Part Name 901