Routine Change on Mechanical Assets

Accuracy.

Technology (10 years is quite a long time for the technology to jump a few generation)

I have seen 5 years for a preciosion engineering firm- our vendor- (of course they move the machines after this time to Rough machining zone and sell after 10-12 years). Finish machining is on a machine <5 years old. And this firm may be one of the or may be the best in world in its product.

What are the assets?? Pumps in acid service might well need such a routine change. Compressors in refrig service might well run for 50 years.

I worked with some recip air compressors once that had been in service since 1890, this was about 1990, and as far as I know they are still running now...

One other obvious variable is your maintenance program. How would you rate it personally. Be honest! What about duty cycles. Are you a 24/7 operation. Factor downtime as well as stops and starts. Cold iron to hot run again and again can be a killer. And, as mentioned before, is your product caustic in terms of machinery wear? A blanket 10 year policy may be inappropriate for all departments. Examine them individually.