Introduction

This guide will show you how to quickly and easily replace the carbon brushes in a Makita GA4030k angle grinder.

Unscrew the 20 mm tapping screw using a  Philips #02 screwdriver. Unscrew the 20 mm tapping screw using a  Philips #02 screwdriver.
  • Unscrew the 20 mm tapping screw using a Philips #02 screwdriver.

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Slide the back cover down the power cable.
  • Slide the back cover down the power cable.

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Use a spudger to move the springs (holding the brushes) to the side. There are two brushes, one on each side.
  • Use a spudger to move the springs (holding the brushes) to the side.

    • There are two brushes, one on each side.

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Use needle nose pliers to gently pull out the carbon brushes by their crimped connectors. Use needle nose pliers to gently pull out the carbon brushes by their crimped connectors.
  • Use needle nose pliers to gently pull out the carbon brushes by their crimped connectors.

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Conclusion

To reassemble your device, follow these instructions in reverse order.

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Nyssa Backes

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Cal Poly, Team 12-5, Lancaster Spring 2015 Member of Cal Poly, Team 12-5, Lancaster Spring 2015

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