Introduction

This is a guide detailing the steps to replace the armature.

Check for the provided lock nut wrench. This is used for loosening the piece that keeps the disk and cover attached.
  • Check for the provided lock nut wrench. This is used for loosening the piece that keeps the disk and cover attached.

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Unscrew the handle unit until it is removed completely.
  • Unscrew the handle unit until it is removed completely.

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Hold the black switch located on the front casing. Still holding the switch, use the lock nut wrench to loosen the silver disk holding everything in place.
  • Hold the black switch located on the front casing.

  • Still holding the switch, use the lock nut wrench to loosen the silver disk holding everything in place.

    • Once loose, remove the silver disk and/or your grinding disk.

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Using a Phillips #02 screwdriver, remove the 15 mm pan head screw holding the cover in place. Remove the cover by lining up the knob on the cover with the notch in face plate.
  • Using a Phillips #02 screwdriver, remove the 15 mm pan head screw holding the cover in place.

  • Remove the cover by lining up the knob on the cover with the notch in face plate.

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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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Using a metal spudger, remove both carbon brushes (one on each size) by their copper cabling. Using a metal spudger, remove both carbon brushes (one on each size) by their copper cabling.
  • Using a metal spudger, remove both carbon brushes (one on each size) by their copper cabling.

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Remove the four 20 mm tapping screws holding the armature assembly in place using a Phillips #02 screwdriver. Remove the armature assembly Remove the armature assembly
  • Remove the four 20 mm tapping screws holding the armature assembly in place using a Phillips #02 screwdriver.

  • Remove the armature assembly

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Unscrew the four 10 mm tapping screws holding the faceplate using a Phillips #02 screwdriver. Remove the faceplate.
  • Unscrew the four 10 mm tapping screws holding the faceplate using a Phillips #02 screwdriver.

  • Remove the faceplate.

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Hold the highlighted nut with a size 10 wrench. Unscrew by turning the armature and holding the nut in place. The nut may be difficult to remove.
  • Hold the highlighted nut with a size 10 wrench. Unscrew by turning the armature and holding the nut in place.

    • The nut may be difficult to remove.

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Remove the armature.
  • Remove the armature.

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Conclusion

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

3 other people completed this guide.

Laura Ann Jagels

Member since: 04/01/2015

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

CPSU-LANCASTER-S15S12G5

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