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Tag: JA1011

  • RCM boundaries and Living RCM

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    Murray Wiseman
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    In performing your RCM analysis on this butterfly valve, you decided to treat the hydraulic system as a separate analysis. You drew the boundary in such a way that the cylinder-actuator belongs to the hydraulic system and not to the valve. That is perfectly legitimate. You can draw the boundaries in any way that you…

  • Criticality analysis in RCM

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    Murray Wiseman
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    Criticality Analysis may be applied at two levels of the RCM process. First, it may be used to sort  or classify a large number of equipment assets as to their priority for analysis. Secondly criticality analysis may be applied to individual failure modes as in the FMECA process. Criticality analysis when performed on failure modes…

  • Local, Next higher level, End effects

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    by

    Murray Wiseman
    in

    The FMECA process specified by MIL-STD-1629A provides a structured description of the Effects while the SAE JA1011 “minimum RCM” Effects are described by free text. One may question why LRCM chooses free text over the more stringent military structure The Effects long text field is one of several aspects that set RCM apart from the…

  • Effects

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    by

    Murray Wiseman
    in

    In most CMMSs where an RCM functionality has been introduced, the Effects tend to be  short single phrases rather than narratives as suggested in the Moubray and SAE JA1011 standard. Effects according to the Moubray/JA1011 viewpoint include what happens at all levels in the organization and even beyond. Here is the JA1011 suggested content for…