CR4 Thread: Trick for Fast Segment Cleaning of Commutator
May 28, 2013· Martindale also make a commutator stone to clean the commutator and a seating stone for bedding the brushes. If needs be Morgonite can make brushes with a grinding insert in the brush face, but you need to look at their web site to see if they are suitable. ... Trick for Fast Segment Cleaning of Commutator 05/28/2013 7:37 AM.