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NOTA: Utilice las escobillas HITACHI Núm. 73 indicadas en la Fig. 18.

Cambio de escobillas de carbón

Quitar la cubierta de cola y luego aflojar el tornillo de fijación.

Aflojando la tapa de escobilla, pueden quitarse las escobillas de carbón, al colocar las escobillas, apretar firmemente la tapa de escobillas y recolocar la cubierta de con dos tornillos.

5.Cambio de grasa

Esta máquina es de construcción completamente cerrada, para evitar que entre

polvo y haya fugas de lubricante. Por ello, la herramienta puede usarse sin lubricarse por largos periodos.

Cuando so requiere cambiar la grasa, proceder como sigue:

Período de cambio de grasa:

Luego de adquirir la herramienta, cambiarle la grasa cada 6 meses de uso. Consultar para ello al centro de servicio HITACHI autorizado. Procedimiento de cambio de grasa.

Rellenado de grasa

PRECAUCIÓN: Antes de rellenar de grasa, desconectar el aparato y desenchufarlo del tomacorriente.

(1)Quitar la cubierta del cigüeñal y limpiar la grasa interna.

(2)Aplicar 0,7 oz (20 g) de grasa para martillo eléctrico Hitachi tipo A (accesorio normales, contenida en tubo) en el cárter.

Como el tubo contiene 1 oz (30 g) de grasa, proveer 2/3 de la grasa contenida.

(3)Luego de rellenar de grasa, instalar la cubierta del cigüeñal firmemente.

NOTA:

La grasa A del martillo eléctrico Hitachi es del tipo de baja densidad. Si es necesario, siempre adquirir la grasa a un agente de servicio Hitachi autorizado.

Cubíerta de la cubíerta del cígüeñal

Fig. 19

6.Mantenimiento y reparación

Todas las herramientas eléctricas de calidad requieren de vez en cuando el servicio de mantenimiento o el reemplazo de piezas debido al desgaste producido durante la utilización normal. Para asegurarse de que solamente se utilicen piezas de reemplazo autorizadas, todos los servicios de mantenimiento y reparación deberán realizarse SOLAMENTE EN UN CENTRO DE REPARACIONES AUTORIZADO POR HITACHI.

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Hitachi DH 40FB instruction manual Cambio de grasa, Mantenimiento y reparación

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.