Hitachi H 45MR 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 tool

Since use of a dull tool will degrade efficiency and cause possible motor malfunction, sharpen or replace the tool as soon as abrasion is noted.

2.Inspecting the screws

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

WARNING: Using this demolition hammer with loosened screws is extremely dangerous.

3.Inspecting the carbon brushes (Fig. 10)

The Motor employs carbon brushes which are consumable parts. When they become worn to or near the “wear limit”, it could result in motor trouble. When an auto-stop carbon brush is equipped, the motor will stop automatically. At that time, replace both carbon brushes with new ones which have the same carbon brush Numbers shown in the figure. In addition, always keep carbon brushes clean and ensure that they slide freely within the brush holders.

No. of carbon

Wear limit brush

73

0.28" (7 mm)

0.67" (17 mm)

Fig. 10

NOTE: Use HITACHI carbon brush No. 73 indicated in Fig. 10.

4.Replacing carbon brushes (Refer to figure for name of parts)

Loosen the set screw then remove the tail cover. By loosening the brush caps, the carbon brushes can be removed. After fitting new carbon brushes, properly retighten the brush caps and mount the tail cover.

5.Grease replacement

This machine is of fully oil sealed construction to protect against dust incursion and to prevent lubricant leakage. This machine can be used without grease replenishment for an extended period of time. However, perform the grease replacement to extend the service life. Replace the grease as described below.

(1)Grease Replacement Period

Inspect the grease amount according to the timing replacement period of the carbon brush. (See item 3 in the section MAINTENANCE AND INSPECTION.)

Ask for grease replacement at the nearest authorized Hitachi Service Center.

In the case that you are forced to change the grease by yourself, please follow the following points.

14

Image 14

Contents Avertissement AdvertenciaContents Important Safety Information Meanings of Signal WordsSafety General Safety RulesEnglish Specific Safety Rules and Symbols Never use a tool which is defective or operating abnormally Do not wipe plastic parts with solventMake Them Available to Other Users Owners of this Tool Double Insulation for Safer OperationName of Parts SpecificationsFunctional Description Deciding Working Position of Tool AssemblyInstalling Tools Removing ToolMove the side handle Prior to Operation OperationApplications HOW to USE the Demolition Hammer Maintenance and Inspection Service and repairs Service parts listSold separately AccessoriesStandard Accessories Tamping Rammer Shank Code No Informations Importantes DE Sécurité Signification DES Mots D’AVERTISSEMENTConserver CES Instructions SecuriteRegles Generale DE Securite Avertissement Lire et coxmprendre toutes les instructionsFrançais Regles DE Securite Specifiques ET Symboles Ne jamais toucher les parties mobilesNe pas essuyer les parties en plastique avec du solvant Garder propres les évents d’air du moteurUtiliser l’outil motorisé à la tension nominale Double Isolation Pour UN Fonctionnement Plus SUR Description Fonctionnelle NOM DES PartiesRecherche de la position de travail de l’outil Installation des outilsAssemblage Retrait de l’outilDéplacer la poignée latérale Fonctionnement Avant L’UTILISATIONComment Utiliser LE Marteau Piqueur Inspection de l’outil Remplacement de graisseEntretien ET Inspection Inspection des visService apres-vente et reparations Liste des pièces de rechangeAccessoires Accessoires StandardFrançais Información Importante Sobre Seguridad Significado DE LAS Palabras DE SeñalizaciónGuarde Estas Instrucciones SeguridadNormas Generales DE Seguridad Advertencia Lea y entienda todas las instruccionesEspañol Utilice la herramienta correcta Normas Y Símbolos Específicos DE SeguridadNo toque nunca las piezas móviles Maneje correctamente la herramientaManeje con cuidado las herramientas eléctricas No limpie las partes de plástico con disolventeAislamiento Doble Para Ofrecer UNA Operación MÁS Segura Especificaciones Descripción FuncionalNomenclatura Decisión de la posición de trabajo de la herramienta MontajeInstalación de herramientas Extracción de la herramientaMueva el asa lateral Antes DE LA Operación OperaciónAplicaciones Forma DE Usar EL Martillo Demoledor Inspección de los tornillos Mantenimiento E InspecciónInspección d la herramienta Inspeccionar los carbones de contacto FigPage De venta por separado AccesoriosAccesorios Estándar Español Page 6201DDCMPS2L Page Page Hitachi Koki Canada Co