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เนื้อหาย่อ : borsepower motors have long played a vital role in the operation iances and equipment which everyone depends upon and takes These motors are of many types and shapes, each designed and specifc application. The purpose of this book is to provide planation of the principles of operation of the various frac- ower motors and to present basic procedures for servicing and af the widespread use and great number of fractional horsepower servicing has become a problem to motor manufacturers and of equipment which includes motors. I Many motors are the field improperly tagged as to their troubles, and many ed to the manufacturer when they could have been repaired the service technician been more knowledgeable. e question "What makes this motor run?" and by examining of the motor, the author believes that better maintenance be rendered, eliminating unnecessary down-time and mini- enience to the ultimate user. To aid in locating faults, after motor has been discussed, there is an accompanying trouble- for that motor. principles of operation, construction, troubleshooting, and section on basic motor testing describes tests that may be the reader with basic test equipment. There is also a section osure and mounting characteristics. And, although the actual # anotor is beyond the scope of this book, common types of wind- r construction are explained. cir is intended for all who are interested in or concerned with Eractional horsepower motors, it is also designed to help the reason, the book is profusely illustrated. This proven ethod of presentation visualizes for the reader the salient out in the text and brings theory and practice into a closer