Apex Customs – DA Polisher Spare Carbon Brushes

These carbon brushes are a common replaceable item that wears out with use over time. As good practice always carry a spare set of carbon brushes to ensure you have a set handy to replace worn out ones when the machine starts to emit sparks or when you notice the performance deteriorating.

Note there usually two types of carbon brushes to choose from: With automatic stop and without automatic stop.

Carbon brushes with automatic stop (Sensei Plus) have a spring through the length of the carbon brush. When the carbon brush wears out, the spring gets released, the current to the carbon brush gets interrupted and your power tools switches off at once. The advantage: No additional wear and tear to your power tool.

Carbon brushes without automatic stop (Sensei) do not stop functioning at once, but performance of your power tool will deteriorate rapidly.

Replacing Carbon Brushes

For replacing carbon brushes for the Sensei Pro polisher, refer to the video here.

For other polishers (Sensei Plus, Karate Kid, Grasshopper), see below:

• Use a flat faced screwdriver to remove the cover.
• The old brushes should come off once the cover is removed as it is spring loaded.
• Insert the new ones in a similar way the old ones were removed, ensuring the carbon brushes are in full contact with the motor.
• Tighten the cap back with the same flat faced screwdriver.
• Restart the machine and there should be no more sparks.