Commutator Inspection

Train in identifying some problems that affect the commutator.

Prerequisites

Knowledge of DC motor components and commutation is recommended.

Description

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

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.