Understanding the EASA mechanical repair guideline

The quality of motor repair depends on the quality of the facilities that are available to make the repair. Historically, there has not been a lot of information available to service centers to use as a comprehensive guide to electric motor repair. End users of machinery always look for a resource, a document upon which to base our repairs. The EASA Standard ANSI/EASA AR100-2001 Recommended Practice for the Repair of Rotating Electrical Apparatus provides important guidelines; however, it does not go into great detail. Last year, EASA made available the publication, a detailed guideline, titled "Mechanical Repair Fundamentals". The book breaks down the motor into its mechanical components and offers specific repair procedures and tips for each component of the motor system. IEEE Standards are referenced throughout the text. This paper gives an overview of "Mechanical Repair Fundamentals" and how it is structured. It can be used by the service center for reference and by the end user to help them understand how their motors are repaired. The value to the end user is that he/she can direct the motor repair facility to specific, acceptable repair practices to be incorporated into the repair of specific motors, and also note any exceptions to a common repair practice.