“The little brush gets all the blame” is a statement commonly heard in the industry, but the blame is usually misdirected. Here are some of the common machine ailments and their cures with hints on how to obtain longer brush life and better performance.The much-maligned carbon brush is not responsible for most of the machine malfunctions attributed to it. Sparking at the brush face is usually the first symptom of trouble elsewhere. To properly appraise and remedy the difficulties, the technician must understand what a brush is supposed to do and what special qualities it must have to accomplish its purpose. |
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