Ian
Notorious member
Chasing every hose & seal over time would annoy me profusely. Once they start going, like our high pressure hot water lines, Chevy cooler lines, I change them all. Helps having a shop 3 minutes away that can make crimped end hose of all kinds, doesn't help the fact that they are expensive.
I'd just do it all and be done except I know as soon as I do one of the hydraulic pumps will let go, one of the drive chains in the lower end will break, the head crack will finally get too bad to deal with, or something else major will happen that will basically total the machine. The hour meter reads 9K something and hasn't worked in probably years before I bought it in 2009, I know I've put at least 600 more on it, so band-aids and baling wire will keep it going until then. I bought a newer 763 with a bad engine a few years ago with 3900 hours on it and knew everything else on it was in decent shape, so when my current one finally bites the dust I'll fix it up to use around the property instead and I'll make a phone call that will make the old one disappear and turn into a few dollars cash from the scrap yard.