Hitachi DH 40FB instruction manual How to replase grease, Service and repairs

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English

◯Replacing carbon brushes: (For parts name, refer to Fig. 1)

Loosen the two set screws and remove the tail cover. Remove the brush caps and carbon brushes. After replacing the carbon brushes, tighten the brush caps securely and to install the tail cover with securely tightening two set screws.

5. How to replase grease

This machine is full air-tight construction to protect against dust and to prevent lubricant leakage. Therefore, the machine can be used without lubrication for long periods. Replace the grease as described below.

◯Grease replacement period

After purchase, replace grease after every 6 months of usage. Ask for grease replacement at the nearest HITACHI Authorized Service Center. Proceed for replacement of grease.

◯Grease replenishment

CAUTION: Before replenishing the grease, turn the power off and pull out the power plug.

(1)Remove the crank case cover and wipe off the grease inside.

(2)Apply 0.7 oz (20 g) of HITACHI Electric Hammer Grease A (standard accessory, contained in tube) to the crank case.

As the tube contains 1 oz (30 g) of grease, supply 2/3 of the contained grease.

(3)After replenishing the grease, install the crank case securely.

NOTE: The HITACHI Electric Hammer Grease A is of the lower viscosity type. When the supplied grease tube is consumed, purchase from a HITACHI Autorized Service Center.

Crank Case Cover

Fig. 19

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 Manual DE Instrucciones E Instrucciones DE Seguridad DH 40FBContents Important Information Meanings of Signal WordsGeneral Safety Rules SafetyNever operate without all guards in place Keep motor air vent clean Blades and accessories must be securely mounted to the toolOperate power tools at the rated voltage Use right toolSpecific Safety Rules and Symbols Double Insulation for Safer Operation Name of Parts SpecificationsFunctional Description Prior to Operation Assembly and OperationApplications How to install tool HOW to USEHow to drill holes Fig Regulating the number of rotations and hammering FigInstall the stopper Fig How to chisel or crush FigHow to select rotation-hammering and hammering Warming up Fig Mounting HOW to USE the Core BITHow to bore Fig Dismounting Fig Maintenance of the motor Maintenance and InspectionInspecting the drill bits Inspecting the mounting screwsService and repairs How to replase greaseStandard Accessories AccessoriesHitachi Signification DES Mots D’AVERTISSEMENT Informations ImportantesRegles Generale DE Securite SecuriteConserver CES Instructions Avertissement Lire et coxmprendre toutes les instructionsFrançais Garder propres les évents d’air du moteur Utiliser l’outil correctManipuler l’outil correctement Ne pas essuyer les parties en plastique avec du solvant Regles DE Securite Specifiques ET SymbolesUtiliser l’outil motorisé à la tension nominale Double Isolation Pour UN Fonctionnement Plus SUR NOM DES Parties Description FonctionnelleAvant L’UTILISATION Utilisation Comment installer l’outilRéglage du nombre de rotations et De percussion Fig Comment percer des trous FigComment sélectionner rotation- percussion et percussion Comment buriner ou broyer FigPréchauffage Fig Installer la quenouille FigPerçage Fig Comment Utiliser LA CouronneMontage Démontage Fig Contrôle du foret de perçage Entretien ET InspectionInspection des vis de montage Entretien du moteurEntretien et reparation Comment remplacer la graisseAccessoires Standard AccessoiresBroyage Percussion Significado DE LAS Palabras DE Señalización Información ImportanteNormas Generales DE Seguridad SeguridadGuarde Estas Instrucciones Advertencia Lea y entienda todas las instruccionesEspañol Maneje correctamente la herramienta Utilice la herramienta correctaNo limpie las partes de plástico con disolvente Normas Y Símbolos Específicos DE SeguridadManeje con cuidado las herramientas eléctricas Aislamiento Doble Para Ofrecer UNA Operación MÁS Segura Especificaciones Descripción FuncionalNomenclatura Antes DE LA Operación Montaje Y OperaciónAplicaciones Regulación de número de rotaciones e martilleo Fig Montaje de la herramientaTaladrar orificios Fig Modo DE UtilizaciónForma de picar o romper Fig Selección de rotación-martilleo y MartilleoCalentamiento Fig Instalar el tope FigMontaje Modo DE Usar LA Barrena TubularDesmontaje Fig Modo de taladrar FigInspeccionar la broca de taladro Mantenimiento E InspecciónInspección de los tornillos de montaje Mantenimiento de motorMantenimiento y reparación Cambio de grasaAccesorios Estándar AccesoriosRomper Martilleo Español × 3× 4MM Español Español Español Itachi Koki Canada Co

DH 40FB specifications

The Hitachi DH 40FB is a powerful and versatile rotary hammer designed for heavy-duty applications in construction, renovation, and maintenance tasks. As a leader in the power tools industry, Hitachi has engineered the DH 40FB to meet the demands of professionals who require both performance and precision in their work.

One of the main features of the Hitachi DH 40FB is its robust motor, delivering a striking force of up to 8.2 joules, making it ideal for drilling and chiseling through concrete, masonry, and other tough materials. This high-impact energy ensures that users can complete their tasks efficiently, whether it’s drilling holes for anchor bolts or chiseling out old material for renovation projects. The hammer offers drilling capacities of up to 40 mm in concrete, allowing for versatile applications depending on the specific needs of the job site.

Another technology that sets the Hitachi DH 40FB apart is its use of a unique vibration-dampening system. This feature significantly reduces the amount of vibration that is transmitted to the user, enhancing comfort and minimizing fatigue during prolonged use. This is especially beneficial for professionals who frequently operate heavy tools, as it helps maintain productivity without compromising on safety and ergonomics.

The DH 40FB also incorporates a user-friendly design that includes an easy-to-access switch for selecting between hammer-only and rotary hammer modes. This versatility enables users to switch effortlessly between different applications, optimizing the tool’s efficiency for various tasks like wall chasing or drilling into steel.

In terms of build quality, the Hitachi DH 40FB is designed for durability. Its aluminum housing protects the internal components from dust and debris, which is critical in harsh job site environments. Additionally, the tool features a rotating brush system that maintains equal power in both forward and reverse modes, along with a rugged case that aids in transportation and storage.

Overall, the Hitachi DH 40FB stands out as a reliable and efficient tool, combining power, comfort, and advanced features that cater to the rigorous demands of the construction industry. With its robust capabilities and modern engineering, it is a valuable asset for any professional looking to enhance productivity on the job site. Whether drilling or chiseling, the DH 40FB continues to prove itself as a trusted choice among power tools.
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