DEWALT 9 Inch (228mm) 2200W Angle Grinder

Introduction

The DEWALT DWE490 Angle Grinder is a powerful and robust tool designed for professional applications involving cutting, grinding, and material removal on metals, masonry, and concrete. This manual provides essential information for safe operation, proper setup, and effective maintenance to ensure the longevity and optimal performance of your tool.

Image: The DEWALT DWE490 Angle Grinder, showcasing its yellow and black design with the protective guard and side handle attached.

Safety Information

Always adhere to the following safety guidelines when operating the DEWALT DWE490 Angle Grinder to prevent injury and damage to the tool.

• Wear appropriate personal protective equipment (PPE), including safety glasses, hearing protection, gloves, and a dust mask.
• Ensure the workpiece is securely clamped before beginning any operation.
• Keep hands clear of the rotating disc.
• Do not operate the grinder in damp or wet conditions.
• Disconnect the tool from the power source before making any adjustments, changing accessories, or performing maintenance.
• Use only accessories rated for the speed of the grinder.

Components Included

The DEWALT DWE490 Angle Grinder typically includes the following components:

• 1 x DEWALT DWE490 Angle Grinder Unit
• 1 x Side Handle
• 1 x Protective Guard
• 1 x Two-Pin Wrench

Setup

Attaching the Side Handle

The side handle can be screwed into either side of the gear housing for left or right-handed operation. Ensure it is tightened securely before use.

Image: Close-up view of the side handle attachment point on the grinder, showing the textured grip of the handle.

Adjusting the Protective Guard

The protective guard is adjustable to provide optimal protection during various operations. Loosen the guard clamp, rotate the guard to the desired position, and then securely tighten the clamp.

Image: Detailed view of the protective guard and its adjustment mechanism on the grinder head.

Installing/Changing Grinding Discs

1. Ensure the tool is unplugged.
2. Press and hold the spindle lock button.
3. Use the two-pin wrench to loosen the outer flange nut by turning it counter-clockwise.
4. Remove the outer flange nut and the old disc.
5. Place the new disc onto the inner flange, ensuring it is centered.
6. Replace the outer flange nut and tighten it clockwise with the two-pin wrench while holding the spindle lock.

Operation

Powering On/Off

To start the grinder, press the trigger switch. To stop, release the trigger switch.

Continuous Operation (Lock-on Switch)

For continuous operation, press the trigger switch and then depress the lock-on button. To release, press the trigger switch again.

Grinding and Cutting Techniques

Always allow the disc to reach full speed before contacting the workpiece. Apply moderate pressure and maintain a consistent angle for optimal results and to prevent kickback. For cutting, use a thin cutting disc and make shallow passes.

Image: The DEWALT angle grinder positioned on metal beams, illustrating its application in a work environment.

Maintenance

Regular maintenance ensures the longevity and safe operation of your DEWALT DWE490 Angle Grinder.

Cleaning

After each use, clean the tool with a soft cloth to remove dust and debris. Periodically blow compressed air through the ventilation openings to clear internal dust buildup. Do not use water or chemical cleaners.

Brush Inspection/Replacement

The carbon brushes should be inspected periodically for wear. When they are worn down to approximately 1/4 inch (6mm), they should be replaced. Refer to a qualified service center for brush replacement.

Storage

Store the grinder in a dry, secure location out of reach of children. Ensure the power cord is not kinked or damaged during storage.

Troubleshooting

Specifications

Warranty Information

DEWALT products are engineered to the highest standards and undergo rigorous testing. This product is covered by DEWALT's standard warranty, which protects against defects in materials and workmanship. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official DEWALT website.

Customer Support

For technical assistance, service, or to order replacement parts, please contact DEWALT customer support or visit an authorized service center. You can find contact information and a list of service centers on the official DEWALT website or through the contact details provided with your product documentation.

Official DEWALT Website: www.dewalt.com