Introduction

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

  1. 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.

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

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  4. 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.

  5. 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.

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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