Dewalt D21008 Manual

The Dewalt D21008 is a powerful 1/2-inch hammer drill designed for heavy-duty applications. It features a high-performance motor that delivers up to 2,500 RPM and 38,250 BPM, making it ideal for drilling into tough materials like concrete and masonry. The drill is equipped with a two-speed transmission, providing versatility for various tasks, and a comfortable grip for extended use. 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 Instructions 8. Maintenance 9. Regulatory Information 10. Troubleshooting

Features at a Glance

Key components: 1/2-inch chuck, two-speed transmission, variable speed control, and ergonomic design.

Feature	Description
1/2-inch chuck	Accepts a wide range of drill bits for various applications
Two-speed transmission	Allows for high-speed drilling or high-torque applications
Variable speed control	Provides precise control for different materials
Ergonomic design	Comfortable grip for extended use
Built-in LED light	Illuminates work area for better visibility

Installation

Unpack and inspect contents. Ensure all components are included.

Attach the appropriate drill bit to the chuck.
Connect to a power source: Ensure the voltage matches the drill's specifications.
Adjust the settings based on the material you will be drilling.

WARNING! Always wear safety goggles and gloves when operating the drill.

First-Time Setup

Power on the drill and familiarize yourself with the controls.

Set the speed according to the material.
Test the drill on a scrap piece before starting your project.
Ensure all safety features are functional.

CAUTION! Ensure the drill is unplugged when changing bits.

Specifications

Power: 8.5 Amps.
Speed: 0-1,200 RPM (low), 0-2,500 RPM (high).
Impact Rate: 0-38,250 BPM.
Chuck Size: 1/2-inch keyless.
Weight: 5.5 lbs.
Dimensions: 12 x 10 x 4 inches.
Power Source: Corded electric.

Controls and Settings

Access speed settings via the variable speed trigger. Use the gear selector for speed adjustments.

Safety Features: Lock-off switch to prevent accidental start.

Connecting Devices

Ensure the drill is unplugged before connecting any accessories.

Attach the drill bit securely to the chuck.
Connect to a power source using the provided cord.
Select the appropriate speed and mode for your task.

Tip: Always check for loose connections before use.

Operating Instructions

Follow the steps below for optimal operation:

Power on the drill and select the desired speed.
Position the drill at a 90-degree angle to the work surface.
Apply steady pressure while drilling.

WARNING! Do not force the drill; let the tool do the work.

Maintenance

Regular maintenance is essential for optimal performance.

Clean the drill after each use.
Inspect the cord and plug for damage.
Lubricate moving parts as needed.

Regulatory Information

This product complies with FCC regulations and safety standards. For support, visit www.dewalt.com or contact customer service.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Drill won't start	Power source issue	Check power connection and switch.
Excessive vibration	Loose bit	Ensure bit is tightened securely.
Overheating	Continuous use	Allow drill to cool down before further use.
Bit slipping	Worn chuck	Replace chuck if necessary.

Service: For further assistance, contact Dewalt customer service.