DEWALT Angle Grinder IssuesUpdated 3 hours ago

Grinder Will Not Start

Possible Causes

No power supply.
Power cord damaged.
No-Volt/Anti-Restart protection activated after a power interruption.
Switch left in ON position when power was restored.

Resolution

Verify mains power supply.
Inspect cord and plug for damage.
Move switch to OFF and then restart the tool.
If the grinder still fails to start, have the tool inspected by an authorised DEWALT service centre.

Grinder Stops During Use

Possible Causes

Thermal overload protection activated.
Excessive grinding pressure.
Blocked cooling vents.
Motor overheating.

Resolution

Release pressure on the workpiece.
Allow the tool to cool.
Clean intake and exhaust vents.
Restart after cooling by cycling the switch.

Grinder Frequently "Trips" or Shuts Off

Possible Causes

Accessory binding.
Kickback event detected.
Stall protection system activated.
Excessive load on the wheel.

Resolution

Inspect wheel or disc for damage.
Reduce cutting or grinding pressure.
Reposition workpiece so the wheel cannot pinch.
Turn tool off and restart.

Excessive Vibration

Possible Causes

Damaged grinding wheel.
Incorrectly mounted accessory.
Bent accessory.
Wheel not rated for grinder speed.

Resolution

Stop using immediately.
Replace damaged accessories.
Ensure flanges are installed correctly.
Use only accessories rated at or above grinder RPM.

Excessive Sparking

Possible Causes

Normal brush wear.
Motor brush deterioration.
Internal electrical fault.

Resolution

Small amounts of sparking can be normal.
Excessive sparking warrants inspection by an authorised service centre.
Do not continue operation if sparking becomes severe.

Wheel Binds During Cutting

Possible Causes

Workpiece closes on the wheel.
Improper cutting technique.
Side pressure applied to cutting disc.

Resolution

Support the workpiece correctly.
Cut in a straight line.
Never twist the wheel in the cut.
Let the wheel reach full speed before contacting material.

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