Correct tire pressure (newb question)

[Redlands Okie]

Increases tread wear in the center, lengthens stopping distance.

That tread wear sure does apply to the duallies on my pickup at high PSI

 

[BrokeFarmerJohn]

Newb question here.

I have a JD 870 tractor that currently has turf tires mounted on it. Winter is coming and I am going to mount the Firestone Ag ties that came with it.

Could you suggest what the correct tire pressure should be for the rear Ag tires?

Firestone All Traction Field & Road
`12.4 x 24

Thanks

Off the top of my head on my tractor (JD 4320) the rears are max of 35psi and the fronts are max of 45psi, R4 industrial tires, I found around 10-12psi on rears and 30-35psi on the fronts due to the front end loader works great, in my opinion unless your doing heavy work your not gonna need a lot of Psi, I use my tractor for mainly FEL work so traction on the rear is a bit more important, on the front I need more stable platform for the FEL. I know my tractor is a little bigger than yours but in my limited exposure to tractors, people are running close to the same on all compact to mid range tractors. R4 industrial tires have the stronger sidewall, I didn't see as much of a diff from 28psi on the rears when I bought my tractor to where they are now is 11psi, ride was smoother but tire didn't sag much at all. So I guess tire psi in my mind would be more related to the work doing. Just my 2 cents, I'm no farmer lol.