How to replace carbon brush of Mixer Grinder

Mixer Grinder is one of the most important Home Appliance of our Homes.But these mixer grinders have a weak point.Carbon brush is the weak point of these mixer grinders. with time these carbon brush of Mixer Grinder wears out and creates problems like sudden stop,irregular running and in worse case complete stop and non functioning. These whole mixer ginder remains perfect but because of these 2 small carbon brushes,the whole system stops funtioning. In this video i explained that how you can replace the Carbon brush of a mixed grinder very very easily in few simple steps.
watch the complete video to get the complete details.