'Predictive' maintenance?

So you have a solid preventive maintenance program. You're not just changing oil and filters because you know that doing only those minimal services isn't a true PM program. You've carefully dissected service manuals to find all the required PM.

The other day, you even changed the hydraulic hoses on one of your mowers and they weren't even leaking! Okay, so you were a little late on that service because didn't realize it was necessary. Only after you reviewed the PM schedule for this mower did you discover that should perform this hose service every two years.

Wow! If none of those hoses ever break, what a great benefit. No more dead grass from hydraulic oil …