ENGLISH

1.Insert the chisel as described above.

2.Rotate the chisel position collar (d) in the direction of the arrow until the chisel is in the desired position.

•Apply a pressure of approx. 20–30 kg to the tool. Excessive force does not speed up chiselling but decreases tool performance and may shorten tool life.

Setting the Electronic Impact Power Control Dial (fig. 1)

Turn the dial (c) to the desired level. The higher the number, the greater the impact energy. With dial settings from «1» (low) to «7» (full power) the tool is extremely versatile and adaptable for many different applications.

The required setting is a matter of experience, for example:

•when chiselling soft, brittle materials or when minimum break-out is required, set the dial to «1» or «2» (low);

•when breaking harder materials, set the dial to «7» (full power).

Proper Hand Position (fig. 1, 2)

WARNING: To reduce the risk of serious personal injury, ALWAYS use proper hand position as shown.

WARNING: To reduce the risk of serious personal injury, ALWAYS hold securely in anticipation of a sudden reaction.

Proper hand position requires one hand on the side handle (f), with the other hand on the main handle (b).

Switching On and Off (fig. 1)

Switching on: set the on/off switch (a) to position 1.

Switching off: set the on/off switch (a) to position 0.

Fitting and Adjusting the Side Handle (fig. 6)

The side handle (f) can be mounted on the front of the machine to suit both RH- and LH-users.

WARNING: Always operate the machine with the side handle properly mounted.

1.Unscrew the side handle clamp knob (i).

2.Slide the side handle assembly onto the machine locating the steel ring (h) in the mounting area (x). The correct position of the side handle is between head and middle of the tube.

3.Adjust the side handle (f) to the desired angle.

4.Slide and rotate the side handle to the desired position.

5.Lock the side handle in place by tightening the clamp knob (i).

OPERATION

Instructions for Use

WARNING:

•Always observe the safety instructions and applicable regulations.

•Be aware of the location of pipework and wiring.

Demolition, Chasing and Channelling (fig. 1)

1.Select the appropriate chisel and clean.

2.Insert the chisel and check whether it is properly locked.

3.Set the desired impact energy level.

4.Fit and adjust the side handle (f) and make sure it is firmly tightened.

5.Hold the tool at both handles (b, f) and switch on. The tool now runs in continuous operation.

6.Always switch off the tool when work is finished and before unplugging.

Various types of chisels are available as an option.

Only DEWALT recommended accessories should be used with this product.

MAINTENANCE

Your DEWALT power tool has been designed to operate over a long period of time with a minimum of maintenance. Continuous satisfactory operation depends upon proper tool care and regular cleaning.

This machine is not user-serviceable. Take the tool to an authorised DEWALT repair agent after approximately 100 hours of use. If problems occur before this time contact an authorised DEWALT repair agent.

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DeWalt D25901 manual Setting the Electronic Impact Power Control Dial fig, Proper Hand Position fig, Switching On and Off fig
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D25901 specifications

The DeWalt D25901 is a powerful and versatile demolition hammer designed for professionals who demand performance and reliability in heavy-duty applications. This robust tool is engineered to tackle a variety of challenging tasks such as breaking concrete, chipping, and digging, making it an essential asset for contractors, masons, and construction professionals.

One of the standout features of the DeWalt D25901 is its impressive 9.0 amp motor, which delivers high performance and allows the tool to handle even the most demanding tasks with ease. The hammer provides a maximum impact energy of 12.5 joules, making it one of the most effective demolition hammers available on the market. This powerful performance translates into faster work completion and increased productivity on the job site.

An important technology incorporated into the DeWalt D25901 is its unique active vibration control system. This innovative feature significantly reduces the amount of vibration the user experiences, helping to enhance comfort and reduce fatigue during extended use. This is particularly beneficial for professional users who require a tool that can be used for long periods without causing strain or discomfort.

The DeWalt D25901 also boasts a robust construction, featuring a durable housing that can withstand the rigors of heavy use in tough environments. The tool is designed for easy maintenance, with a grease fitting that enables quick lubrication of critical components for improved durability and extended tool life.

In terms of usability, the D25901 is equipped with a two-position side handle, allowing for better control and comfort during operation. The handle can be adjusted for a range of working angles, ensuring optimal handling in tight spaces. Additionally, the demolition hammer features a convenient depth adjustment rod, enabling precise control when chiseling or breaking materials.

The D25901 uses a standard SDS-Max chuck system, providing compatibility with a wide range of accessories and attachments, making it a flexible choice for various applications. This system also facilitates quick bit changes, enhancing overall workflow on the job site.

In summary, the DeWalt D25901 demolition hammer is a powerhouse tool characterized by its robust performance, advanced vibration control technology, and durable construction. Its user-friendly design and ease of maintenance make it an ideal choice for professionals looking for efficiency and reliability in their demolition projects. Whether it’s for breaking through concrete or performing detailed chipping tasks, the D25901 is engineered to deliver results.
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