Dewalt D28402 Angle Grinder Manual

The Dewalt D28402 is a powerful 4-1/2 inch angle grinder designed for professional use. It features a 10 amp motor that delivers 11,000 RPM for fast and efficient grinding, cutting, and polishing. The grinder is equipped with a durable aluminum gear case for increased durability and a two-position side handle for added 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 Accessories 7. Operating the Grinder 8. Maintenance and Care 9. Safety Information 10. Troubleshooting

Features at a Glance

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

Feature	Description
10 Amp Motor	Delivers 11,000 RPM for fast grinding and cutting.
Aluminum Gear Case	Increases durability and reduces weight.
Two-Position Side Handle	Provides added control and comfort during use.
Spindle Lock	Allows for easy wheel changes.
Safety Guard	Protects user from debris and sparks.

Installation

Unpack and inspect contents. 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 in place.
Connect to power: Ensure the power source is compatible.

WARNING! Always unplug the grinder before changing accessories.

First-Time Setup

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

Check the power cord: Ensure there are no damages.
Test the safety guard: Ensure it is securely attached.
Adjust the side handle: Position for comfort and control.

CAUTION! Always wear appropriate personal protective equipment.

Specifications

Motor Power: 10 Amps.
Wheel Size: 4-1/2 inches.
RPM: 11,000.
Weight: 4.5 lbs.
Dimensions: 12.5 x 5.5 x 4.5 inches.
Power Source: Corded electric.
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.

Adjustments: The side handle can be adjusted for left or right-handed use.

Connecting Accessories

Ensure the grinder is unplugged before connecting any accessories.

Align the accessory with the spindle.
Press the spindle lock and tighten the accessory securely.
Check for proper installation before use.

Tip: Always use accessories that are compatible with the grinder.

Operating the Grinder

Supports various grinding and cutting applications.

Power on the grinder: Ensure the safety guard is in place.
Use the appropriate accessory for the task.
Maintain a firm grip and control during operation.

WARNING! Do not operate without the safety guard.

Maintenance and Care

Regular maintenance is essential for optimal performance.

Clean the grinder after each use.
Inspect the power cord for damages.
Replace worn accessories promptly.

CAUTION! Always unplug the grinder before performing maintenance.

Safety Information

Always follow safety guidelines to prevent accidents.

Wear safety goggles and gloves.
Keep hands and body away from the grinding area.
Do not bypass safety features.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Grinder won't start	Power source issue	Check power cord and outlet.
Excessive vibration	Worn accessory	Replace accessory; check for damage.
Overheating	Blocked vents	Clean vents and allow to cool.
Noise during operation	Loose parts	Tighten all screws and components.

Reset: Unplug and plug back in to reset if necessary.

Service: Contact Dewalt customer service for assistance.