Dewalt D28112 Manual

The Dewalt D28112 is a powerful 4-1/2 inch angle grinder designed for heavy-duty applications. It features a 12 amp motor that delivers 10,000 RPM for fast material removal, and its compact design allows for easy handling and maneuverability. 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. Maintenance 9. Safety Information 10. Troubleshooting

Features at a Glance

Key components: 12 amp motor, adjustable guard, paddle switch, and ergonomic design.

Feature	Description
12 Amp Motor	Delivers 10,000 RPM for fast material removal
Adjustable Guard	Provides added safety and convenience
Paddle Switch	For easy operation and control
Ergonomic Design	Improves comfort during extended use

Installation

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

Attach the guard: Align the guard with the grinder and secure it.
Install the wheel: Use the provided wrench to secure the grinding wheel.
Connect to power: Ensure the power source is compatible.

WARNING! Always wear appropriate safety gear during installation.

First-Time Setup

Before operating the grinder, ensure all components are securely attached.

Check the wheel: Ensure it is properly installed and not damaged.
Power on: Plug the grinder into a suitable outlet.
Test operation: Turn on the grinder and check for any unusual noises.

CAUTION! Ensure a stable work surface before use.

Specifications

Motor Power: 12 Amps.
Wheel Size: 4-1/2 inches.
Speed: 10,000 RPM.
Weight: 5.5 lbs.
Dimensions: 12 x 5 x 5 inches.
Power Source: Corded electric.

Controls and Settings

Access the paddle switch for operation. The adjustable guard can be repositioned for different applications.

Safety Features: The grinder includes a safety lock-off switch to prevent accidental start-up.

Connecting Devices

Ensure the grinder is unplugged before connecting any accessories.

Attach the grinding wheel: Use the provided wrench to secure it.
Connect to power: Ensure the outlet is suitable for the grinder's requirements.

Tip: Always check connections before powering on the device.

Operating the Grinder

To operate the grinder, follow these steps:

Power on: Press the paddle switch to start the grinder.
Use: Move the grinder smoothly over the material.
Power off: Release the paddle switch to stop the grinder.

WARNING! Always keep hands away from the grinding wheel during operation.

Maintenance

Regular maintenance is essential for optimal performance.

Clean the grinder after each use.
Inspect the grinding wheel for wear and replace as necessary.
Check the power cord for any damage.

CAUTION! Unplug the grinder before performing maintenance.

Safety Information

Always wear safety goggles and gloves when operating the grinder. Ensure the work area is clear of obstructions.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Grinder won't start	Power source issue	Check outlet and power cord.
Excessive vibration	Unbalanced wheel	Inspect and replace wheel if necessary.
Overheating	Blocked vents	Clean vents and allow to cool.
Noisy operation	Worn bearings	Inspect and replace bearings as needed.

Reset: Disconnect from power and reconnect to reset.

Service: For assistance, contact Dewalt customer service.