Fig. 4
Tool Holder Fig. 3

English

7. How to install tool

CAUTION: For tools such as a drill bit and a bull point, use only Hitachi genuine parts.

(1)

Clean, then smear the tool shank with

 

the grease provided in the green tube.

(2)

Pull the tool holder in the direction of

 

arrow 1 and rotate it in the direction of

 

arrow 2 (counterclockwise). Fully insert

 

the tool shank into the hexagonal hole

 

of the front cover. (Fig. 3)

Front Cover

2

(3) Return the tool holder to fix the tool.

NOTE: Remove in the reverse order to

installation.

Tool Shank

1

8.Regulating the number of rotations and hammering (Fig. 4)

This rotary hammer is equipped with a built-in electronic control circuit that can adjust and regulate the number of rotations and times of hammering. This

hammer drill can be used by adjusting

the dial, depending upon the contentsDial of operation, such as boring holes into

fragile materials, chipping, centering, etc.

The scale ‘1’ of the dial is designed for a minimum speed with the number of 180 rotations per minute and 1,400 times of blow per minute. The scale ‘5’ is designed for a maximum speed with the number of 360 rotations per minute and 2,800 times of blow per minute.

CAUTION:

Do not adjust the dial during operation. Doing so can result in injury because the rotary hammer must be held by only one hand, disabling the steady control of the rotary hammer.

HOW TO USE

1. How to drill holes (Fig. 5)

(1)Pull the switch trigger after applying the drill bit tip to the drilling position.

(2)It is unnecessary to forcibly press the

rotary hammer main body. It is sufficient to slightly press the rotary hammer to

an extent that clips are freelyFig. 5 discharged.

11

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Hitachi DH 40FB instruction manual HOW to USE, How to install tool, Regulating the number of rotations and hammering Fig

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.