Kioti CK3510SE HST, Ford 3400, Gizmow ZTR, Simplicity 7016H
OP. You have the Titan R14T tires. Max is 41 psi according to the Kioti manual (and what mine came filled to) but you can run them at 25-30 psi all day long for a more comfortable ride and traction. No problem at all.
The fronts are 45 psi, and should remain right about there if you have the loader. If not, you can drop it some, but I wouldn't go below 35 psi or so.