Aspearin1. Be careful applying “Machine Malfunction” as a Failure Mode. It isn’t a Failure Mode, it is a Cause of Failure, and a vague one at that. Look a little deeper for the cause of the malfunction. In addition, you are no longer in PFMEA, you are now doing a machinery FMEA.
I disagree with Hydroformer on using the 5M approach to identify Failure Modes in a PFMEA. The 5M approach will work with causes as you do root cause analysis. It does not apply to the Failure Mode. The Failure Modes are derived from the function.
Recommended Actions on an FMEA should be assigned for the highest risk identified in your analysis. Once you complete the analysis, rank order the FMEA by RPN, primary, and the Severity, secondary. Begin assigning Recommended Actions to the top RPN’s. Additionally, as you are completing the...
