Have you ever worked on coding failure modes while a RCM project analysis is underway? Despite the “North American Electric Reliability Council Generating Availability Data System” (Nerc-Gads) System/Component Cause Codes, I don’t know of any other guidance.
Any hints on this matter will be much appreciated as I soon will be commencing to analyse the maintenance procedures currently performed on a water-flow(jet?) cutting machine in order to recommend ways of increasing reliability and availability – costs are expected to decrease in consequence.
All failure modes must be identified (those reasonably expected to show up during its remaining life) and coded in order to be entered in a CMMS and easily searched in the DB when emitting work orders or for statistics purposes.

Thanks in advance.

Rui

quote:

Originally posted by Rui Assis:
Have you ever worked on coding failure modes while a RCM project analysis is underway? Despite the “North American Electric Reliability Council Generating Availability Data System” (Nerc-Gads) System/Component Cause Codes, I don’t know of any other guidance.
Any hints on this matter will be much appreciated as I soon will be commencing to analyse the maintenance procedures currently performed on a water-flow(jet?) cutting machine in order to recommend ways of increasing reliability and availability – costs are expected to decrease in consequence.
All failure modes must be identified (those reasonably expected to show up during its remaining life) and coded in order to be entered in a CMMS and easily searched in the DB when emitting work orders or for statistics purposes.

Thanks in advance.

Rui

Hi Rui

What CMMS System are you using ? if you have SAP then you need to set up equipment history catalogues where you can assign a codes for each maintainable item of a piece of equipment ( SAP= Object part) Functional failure ( SAP = Damage) & failure mode & cause ( SAP= Cause) , It is best if you limit these codes to only cover known or likely failure modes for each maintainable item ,

To get the failure codes for the water jet cutting machine (I suspect high pressure, isn't it?), I guess you can breakdown the machine into its various components like the concept in ISO14224. So what are the components to produce the water jet? Is it driven by an electric motor? If yes, can we not used the same failure modes for the electric motor in ISO14224?

Rui,
Failure codes are best established as default items for a CMMS implementation. RCM studies should not 'create' failure codes, they should be able to use what is there.
In Chapter 11, Appendix 11-1, pages 219-223 of my book 'Effective Maintenance Management', you will find a set of failure codes you can use in SAP and other CMMS.

ISO14224 just standard and guideline. So, be awareness when you mapping in CMMS.

Trevor:
This is a consultancy work and the client-company has a customised ORACLE CMMS. I haven´t seen yet how information, regarding failure codes, is going to be entered but I think it won´t be too different from the way you describe in the case of SAP.

Vee:
The problem is that failure codes were not created at the time the CMMS was implemented. Therefore it has to be done right now, taking the opportunity of this first machine being submitted to a RCM process. Many more will follow for the upcoming two or three years.
I have just ordered your book EMM:RRSOP from Amazon-UK and I will read it with interest.

Josh:
I should have already checked carefully the ISO 14224. I will have to arrange some time this week-end .
The water-jet cutting machine cuts carbon-fibre sheets of different shapes and thicknesses to be used in airplanes fuselage construction.
Yes, good point, perhaps failure modes that are going to be identified in this machine might parallel the ones described in the ISO-14224.

Panuphan:
You are right, ISO-14224 might provide to a great extent the guidance that I need.

Thank you all so much.

Rui

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Is it a high pressure pump driven by an electric motor, with a special nozzle to deliver the high pressure? How high is the pressure? I have seen high-pressure water jet for tube cleaning and waste blasting in which case it is driven by a diesel engine.

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