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.

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

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.

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.

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

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.

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.

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

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.

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.

Remove the armature.
  • Remove the armature.

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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