Tractor maintenance is simple.
Changing fluids on a tractor is easier than doing it on modern cars. For one thing you don't need to jack it up to get under it. The only thing that I didn't already have from working on cars was a large drain pan to handle 10 gallons of transmission fluid. The HST filter on my Branson is large but I had a filter wrench that fit. The other maintenance is greasing the loader and center pivot and cleaning the air filter. Those need to be done often so the owner needs to do them.
I can handle that. Did it for the cars when I was younger and couldn't afford to take them in. Will need to find out where to dispose of the fluids...