Introduction
This is a guide detailing the steps to replace the armature.
Tools
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            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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            Hold the black switch located on the front casing. 
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            Still holding the switch, use the lock nut wrench to loosen the silver disk holding everything in place. 
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            Once loose, remove the silver disk and/or your grinding disk. 
 
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            Use a Phillips #02 screwdriver to remove the 15 mm pan head screw that holds the cover in place. 
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            Remove the cover by lining up the knob on the cover with the notch in face plate. 
 
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            Using a metal spudger, remove both carbon brushes (one on each side) by their copper cabling. 
 
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            Use a Phillips #2 screwdriver to remove the four 20 mm tapping screws that hold the armature assembly in place. 
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            Remove the armature assembly 
 
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            Unscrew the four 10 mm tapping screws holding the faceplate using a Phillips #02 screwdriver. 
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            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. 
 
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To reassemble your device, follow these instructions in reverse order.