Commutator Wear

Train in identifying friction damage, streaking, threading, and grooving, the cause of these problems, and corrective actions.

Prerequisites

Knowledge of DC motor components and commutator inspection is recommended.

Description

This is the tenth lesson in the iKNOW AC/DC Motor Maintenance Library. This lesson trains participants to recognize friction damage, streaking, threading, and grooving, the cause of these problems, and corrective actions.

Objectives

Identify wear patterns, their causes, and corrective actions. Identify the causes of arcing and corrective actions. Identify the causes of high mica and corrective actions.