Replacing Brushes / Starter and Gear Box
REPLACING CARBON BRUSHES- Starter and Gearbox Disassembled -
Fine grind and polish the commutator. File or machine the insulation between plates 0.5 to 0.7 mm (0.020 to 0.028") deep.
Check for shorted turns after machining.
Slide carbon brush holder to the middle and lift it off.
Installation:
Make sure that hooks of carbon brush holder engage completely.
Two carbon brushes must be cut off of the leads.
Solder in new carbon brushes.