Page 60 - Intro Predictive Maintenance
P. 60

Role of Maintenance Organization  51

                  • Failures that can be prevented
                  • Maintenance to prevent failures
                  • Personnel
                  • Service Teams


            3.3.1 Failure Data
            Valid failure data provide the intelligence for an effective preventive maintenance
            program.  After all, the objective is to prevent those failures from recurring.  A
            failure reporting system should identify the problem, cause, and corrective action
            for every call.  An action group, prophetically called the Failure Review and
            Corrective Actions Task Force (FRACAS), can be effective for involving responsible
            organizations in both detailed identification of problems and causes, and assignment
            of both short- and long-term corrective action. The following are typical factory and
            field problems and codes that shorten the computer data entry to four or fewer
            characters:

                  NOOP    Not Operable        OTHR    Other
                  BELR    Below rate          PM      Preventive task
                  INTR    Intermittent        QUAL    Quality
                  LEAK    Leak                SAFE    Safety
                  MOD     Modification         WEAT    Weather
                  NOIS    Noise               NPF     No problem found

            The following are typical cause codes:

                   1. Not applicable          60. Program
                  10. Controls                70. Materials
                  20. Power                   71. Normal wear
                  21. External input power    72. Damaged
                  22. Main power supply       80. Operator
                  30. Motors                  90. Environment
                  40. Drivers                 99. No cause found
                  50. Transports              PM. Preventive maintenance

            The typical action codes are:

                  A/A     Adjust/align        REF    Refurbish
                  CAL     Calibrate           REB    Rebuild
                  CONS    Consumables         LUBE   Lubricate
                  DIAG    Diagnose            MOD    Modify
                  REMV    Remove              PM     Preventive task
                  R/R     Remove and replace  RPR    Repair
                  R/RE    Remove and reinstall  TRN  Train
                  INST    Install             NC     Not complete
                  INSP    Inspect             NK     Not known
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