Specifications include, but are not limited to: The following technical requirements are listed to establish a level of quality expected in the repair process. Any conflicts between these technical requirements and the motor manufacturer's original specifications shall be referred to the County for resolution. a. Cleaning: After disassembly and testing, all winding and parts shall be cleaned in a manner not injurious to the insulation system or component parts. b. Stripping: If the motor stator is to be rewound, the opposite end is cut off the stator. Iron or steel frames shall be burned out using a controlled oven, temperature not to exceed 750 deg F. Aluminum frames shall be removed before burnout. Heating of the laminations shall be controlled to avoid distortion and/or damage. Clean core iron and slots. Inspect stator core. Repair or replace damaged laminations. c. Rewind 1. All insulation material shall be Class H rating or better. Wire shall be inverter duty magnet wire. Coils shall be wound and inserted tightly in the slots with a minimum of crosses. Phase insulation shall be class H rating, and shall protrude at least 1/8 inch at all points. Each slot shall be tied with polyester cord at both ends for additional mechanical strength.
