Pump Repair- Best Practices

[longeron]

I'm trying to convince the Millwright Superintendent I work with that we should overhaul our pump repair procedures. For example our millwrights do not complete a pump repair form during each repair. Or- the decision to replace bearings is subjective- based upon the lift check, "shaft spin test", work load, the latest vibration readings, and IMHO how the millwright is feeling that day.

I'd like to have a discussion with him, the millwrights and some others to hash out ways to improve our work procedures to reduce the number of infant mortalities, improve accountability, make it possible to back their work up with a record of what work was performed, and make it easier to follow repair history of pumps (SAP or Impact only go so far).

I've found some things from Heinz Bloch that discuss some dimensional guidelines, but nothing on cleanliness, bearing installation, assembly, disassembly, cleaning the asset, and so on.

Any ideas?

I know you can sense the frustration in what I've written. I plan on toning things down and finding a way to sell the idea to ease the medicine.

 

[Artisi]

Infant mortalities I assume is premature failures of equipment following an "overhaul".

There is plenty of info available from the pump manufacturers regarding dimensional information etc and a good bearing book will detail of what you need regarding bearing inspection and fault identification. As for what to record, that is really in your court and based on what the pump applications are and what you consider important for trouble free use.
For example - high pressure pumps you would concentrate on clearances of the running parts including the bearings, for solids handling slurry pumps you would be interested in wear and likely usage / life of components following any major refurbishment etc.

There is no set rule - it is industry / use driven and what you consider important.