Tires 3x20 Series Tire Pressure with Backhoe/Loader

[454shooter]

I checked the air pressure on my tires (Galaxy R4's) today when I changed oil. Both front and back are rated at a max 35 psi. I have a 448 backhoe and 300CX loader attached to my 3720. The dealer had the front tires at 47 lbs. and the rears at 17 lb.
Does this sound right? Should the front tires be that overinflated and the rear be at 1/2 pressure?
Any comments appreciated.
Shooter

 

[jd110]

I would put 35 psi in front and around 18-20 psi in the rear.