Dewalt DW400 Manual

The Dewalt DW400 is a powerful 4-inch angle grinder designed for heavy-duty applications. It features a robust motor, adjustable guard, and ergonomic design for user comfort. This manual provides essential information on safety, features, operation, and maintenance.

1. Features at a Glance 2. Safety Information 3. Setup and Operation 4. Specifications 5. Maintenance 6. Troubleshooting

Features at a Glance

Key features include a powerful motor, adjustable speed settings, and a lightweight design for ease of use.

Feature	Description
Powerful Motor	Provides high performance for cutting and grinding tasks.
Adjustable Guard	Offers protection and can be adjusted for different applications.
Ergonomic Design	Designed for comfort during extended use.
Lock-On Switch	Allows for continuous operation without holding the trigger.
Spindle Lock	Facilitates easy wheel changes.

Safety Information

Always wear appropriate personal protective equipment (PPE) when operating the grinder. Ensure the work area is clear of hazards.

Read the manual thoroughly before use.
Keep hands and body away from the grinding wheel.
Ensure the grinder is unplugged when changing accessories.
Do not operate the grinder in wet conditions.

WARNING! Failure to follow safety instructions may result in serious injury.

Setup and Operation

Before using the DW400, ensure it is properly set up and all safety features are functioning.

Attach the appropriate grinding wheel securely.
Plug the grinder into a suitable power outlet.
Turn on the grinder and allow it to reach full speed before applying to the workpiece.
Use steady pressure and let the tool do the work.

CAUTION! Always maintain a firm grip on the grinder during operation.

Specifications

Motor Power: 8 Amps.
Wheel Diameter: 4 inches.
Speed: 10,000 RPM.
Weight: 4.5 lbs.
Dimensions: 12 x 5 x 5 inches.
Power Source: 120V AC.

Maintenance

Regular maintenance is essential for optimal performance and longevity of the grinder.

Clean the grinder after each use.
Check the power cord for damage regularly.
Lubricate moving parts as recommended in the manual.
Store the grinder in a dry place when not in use.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Grinder won't start	Power supply issue	Check power outlet and cord.
Excessive vibration	Improper wheel installation	Ensure wheel is securely attached.
Overheating	Blocked air vents	Clean air vents and allow to cool.
Noisy operation	Worn bearings	Inspect and replace bearings if necessary.

Reset: Disconnect power and reconnect after a few minutes.