FMEA (Failure Mode Effect Analysis) for Maintenance of Mail Sorting Machine

This paper describes the diagnosis item and cycle update for maintenance of mail sorting machine based on FMEA (Failure Mode Effect Analysis). We show the FMEA deployment step, result, and statistics analysis for maintenance of mail sorting machine. There is the update method of diagnosis item and cycle using RPN (Risk Priority Number) which was calculated by severity, occurrence, and detection value. There is also the maintenance status such as failure cause, failure step, and failure parts of 150 mail sorting machines on 30 mail distribution centers in nationwide, Korea. The proposed maintenance system will be adapted for safety and efficient operation and maintenance of mail sorting machine.