how long will it go

[old farmer]

i bought a1999 argo vanguard 6x6 didnt know much about argos but i go by the plant about 50 miles from here i see one on a post in front anyway this looked ok the hills from the river are to steep so i brought it home haveing a plywood cab and tracks it was called the war vehicle that was 6 mo. ago it has 180 hr on it and between the forum and the operators manual ihave got this far i am 75 dont like field repairs so how many hours will those chains go with proper maintenance before something goes wrong

[Rusty-Gunn]

Depends on the quality of the chains, for the most part. High quality chains last longer than cheap chinese crap.
Depends on whether the chains/sprockets are cleaned and lubed regularly. The overall weight (passengers and cargo) makes a difference. Heavy weight causes more stress on the chains.
Road conditions, too. Pavement, for example, causes more friction during a turn, thus more stress on chains.
Many causes contribute to chain wear. There is no specific answer.
It was suggested my chains might last 400 hours. I changed them out at 300. There was a bit more life in them but I wanted to install new ones anyway. 400 might have been attainable, so I'm saving them for back-ups. BTW my aatv us a Max IV.