Dewalt D25901K Manual

The Dewalt D25901K is a powerful demolition hammer designed for heavy-duty applications. It features a 15 amp motor that delivers 62 joules of impact energy, making it ideal for breaking through concrete and masonry. The tool is equipped with a variable speed control for precise operation and a durable design for long-lasting performance. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Operating the Hammer 8. Maintenance 9. Regulatory Information 10. Troubleshooting

Features at a Glance

Key components: 15 amp motor, variable speed control, durable housing, and ergonomic design.

Feature	Description
15 Amp Motor	Delivers high performance for heavy-duty applications.
Variable Speed Control	Allows for precise control during operation.
Durable Housing	Designed to withstand tough job site conditions.
Ergonomic Design	Provides comfort during extended use.

Installation

Unpack and inspect contents. Ensure all components are included.

Place the hammer on a stable surface.
Connect the power cord to a suitable outlet.
Ensure the chisel is securely attached before use.

WARNING! Always wear appropriate safety gear when operating the hammer.

First-Time Setup

Power on the hammer; familiarize yourself with the controls.

Adjust the speed setting according to the material being worked on.
Test the hammer on a scrap piece to ensure proper operation.

CAUTION! Ensure the work area is clear of obstacles.

Specifications

Power: 15 Amps.
Impact Energy: 62 Joules.
Weight: 65 lbs.
Dimensions: 22 x 12 x 10 inches.
Vibration Control: Yes, for user comfort.
Chisel Type: SDS Max.
Power Source: Electric.

Controls and Settings

Access the variable speed control and power switch located on the handle.

Safety Features: Includes a safety lock to prevent accidental activation.

Connecting Devices

Ensure the hammer is unplugged before connecting any accessories.

Attach the appropriate chisel for the task.
Plug the hammer into a grounded outlet.

Tip: Always check for damage before use.

Operating the Hammer

Follow these steps for effective operation:

Power on the hammer and select the desired speed.
Position the chisel against the material and apply pressure.
Maintain a firm grip and allow the hammer to do the work.

WARNING! Do not force the tool; let it operate at its own pace.

Maintenance

Regular maintenance is essential for optimal performance.

Clean the tool after each use.
Inspect the power cord for damage.
Lubricate moving parts as necessary.

Regulatory Information

This tool complies with all relevant safety standards and regulations.

For support, visit www.dewalt.com or contact customer service.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Hammer does not start	Power supply issue	Check outlet and power cord.
Excessive vibration	Improper handling	Adjust grip and stance.
Chisel not working	Improper attachment	Ensure chisel is securely attached.
Overheating	Continuous use	Allow the tool to cool down.

Reset: Unplug and plug back in to reset the tool.

Service: 1-800-433-9258; www.dewalt.com