Dewalt D28490 Manual

The Dewalt D28490 is a powerful 4-1/2 inch angle grinder designed for heavy-duty applications. It features a 10 amp motor that delivers 12,000 RPM for fast material removal. The grinder is equipped with a durable aluminum gear case for increased durability and a two-position side handle for added comfort and control. 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 Grinder 8. Accessibility Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: 10 amp motor, aluminum gear case, two-position side handle, safety guard, and spindle lock.

Feature	Description
10 Amp Motor	Delivers 12,000 RPM for fast material removal
Aluminum Gear Case	Increases durability and reduces weight
Two-Position Side Handle	Provides added comfort and control
Spindle Lock	Allows for easy wheel changes
Safety Guard	Protects user from debris

Installation

Unpack and inspect the grinder. Ensure all components are included.

Attach the safety guard: Align and secure the guard to the grinder.
Install the grinding wheel: Use the spindle lock to secure the wheel.
Connect to power: Ensure the power source is compatible.

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

First-Time Setup

Power on the grinder; ensure all safety features are engaged.

Check the wheel installation: Ensure it is secure before use.
Adjust the side handle: Position for comfort based on your grip.
Test the power: Turn on the grinder to ensure it operates smoothly.

CAUTION! Ensure stable footing and a clear workspace.

Specifications

Motor Power: 10 Amps.
Wheel Diameter: 4-1/2 inches.
RPM: 12,000 RPM.
Weight: 4.5 lbs.
Dimensions: 12 x 5 x 5 inches.
Power Source: 120V AC.
Safety Features: Safety guard, spindle lock.

Controls and Settings

Access controls via the main body of the grinder. Key controls include the power switch and spindle lock.

Safety Features: Ensure the safety guard is properly positioned before use.

Connecting Devices

Ensure the grinder is unplugged before making any adjustments or changes.

Connect to a compatible power source.
Ensure all attachments are secure before use.

Tip: Always check for wear and tear on the grinding wheel before use.

Operating the Grinder

Follow safety protocols when operating the grinder.

Power on the grinder: Ensure the wheel is clear before starting.
Use appropriate pressure: Allow the tool to do the work.
Monitor the work area: Keep hands and body clear of the grinding path.

WARNING! Do not force the grinder; let it operate at its intended speed.

Accessibility Features

The Dewalt D28490 is designed with user-friendly features for ease of use.

Care & Cleaning

Unplug the grinder before cleaning. Use a dry cloth to clean the exterior.

CAUTION! Do not use liquids or aerosols on the grinder.

Regulatory Information

This product complies with all applicable safety standards. For support, visit www.dewalt.com or contact customer service.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Grinder does not start	Power source issue	Check power connection and switch.
Excessive vibration	Worn wheel	Inspect and replace the grinding wheel.
Overheating	Continuous use	Allow the grinder to cool down.
Noise during operation	Loose components	Tighten all screws and attachments.

Reset: If applicable, refer to the manual for reset instructions.

Service: For service inquiries, contact Dewalt customer support.