tire pressure

The  Metric pressure should be stamped right into the tire, My chinese tires are stamped  Jinma 204

I have a dong feng 204 that I use in the garden so these pressures might be a little low for your usage but I put 20 psi in all 4 tires.If you have a lot of hard surface use maybe more pressure is needed.

What does your manual recommend?

If you put 36 lbs in them I hope you added shock absorbers too.

On my 284 I use 28 in the front and 16 in the rear.

If I am doing some extra lifting, etc – I then add or reduce air to keep the proper tread profile on the ground.

RonJ

I use 25 in the front and 15 in the rear with ag tires on my NT254.

I do 16 psi in the rear and 28 psi in the front.

Idahobob…RonJ has the best reply because you forgot to say if there was a loader on the tractor and if there was anything heavy on the rear.  Tire pressure should change accordingly with load.