Dewalt D28402 Parts Manual

The Dewalt D28402 is a powerful 4-1/2-inch angle grinder designed for heavy-duty applications. It features a durable motor, adjustable guard, and a variety of safety features to ensure optimal performance. Below are key sections for parts identification, specifications, assembly, operation, and troubleshooting.

1. Parts Identification 2. Specifications 3. Assembly Instructions 4. Operating Instructions 5. Maintenance 6. Troubleshooting

Parts Identification

Familiarize yourself with the parts of the Dewalt D28402 to ensure proper usage and maintenance.

Part	Description
Motor Housing	Encloses the motor and provides structural support.
Spindle Lock	Locks the spindle for easy wheel changes.
Guard	Protects the user from debris and sparks.
Trigger Switch	Controls the power to the motor.
Handle	Provides a grip for better control during operation.

Specifications

Power: 10 Amps.
Wheel Diameter: 4-1/2 inches.
No Load Speed: 12,000 RPM.
Weight: 4.5 lbs.
Dimensions: 12 x 5 x 5 inches.
Voltage: 120V AC.
Safety Features: Overload protection, adjustable guard.

Assembly Instructions

Follow these steps to assemble your Dewalt D28402 angle grinder:

Attach the handle to the motor housing.
Install the guard by aligning it with the spindle.
Secure the wheel using the spindle lock.
Ensure all parts are tightened and secure before use.

Operating Instructions

To operate the Dewalt D28402 safely and effectively:

Plug the grinder into a power outlet.
Press the trigger switch to start the motor.
Use the grinder at a 15-degree angle for optimal performance.
Release the trigger to stop the motor.

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

Maintenance

Regular maintenance is crucial for the longevity of your angle grinder:

Clean the grinder after each use.
Inspect the power cord for damage.
Replace worn wheels as necessary.
Lubricate moving parts as recommended in the manual.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Grinder won't start	Power supply issue	Check power cord and outlet.
Excessive vibration	Worn wheel	Replace the grinding wheel.
Overheating	Blocked air vents	Clean air vents and allow to cool.
Noisy operation	Loose parts	Tighten all screws and components.

For further assistance: Contact Dewalt customer service.