Course Overview

This course was designed to provide training for electricians, mechanics, and others, wanting to know more about AC and DC motor maintenance. This course consists of 12 interactive, on-line lessons that address AC and DC motor maintenance.

Module Overview

The ninth lesson in the AC/DC Motor Maintenance Course, this lesson shows participants how to identify some problems that affect the commutator.

Module Objectives

• Describe the color of the commutator and explain the function of the oxide film.
• Identify the causes of high mica and corrective actions.
• Identify the causes of uneven segments and corrective actions.
• Identify the causes of thrown solder and corrective actions.

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