Tire pressures for R14 tires with loader

[Farm Fun]

Double checking air pressure needs for my L3902 (R14 tires) with the LA526 loader;
Front 27x8.50-15
Do you use 44psi max per the manual OR lower? Set mine at 40psi right now for general running around, etc. Came from dealer at just under 44.
Rear 15-19.5
Do you use 20 psi max per the manual or something different? Mine are at 30psi right now as set by the dealer; which is the max psi listed on the tire. Also thinking that the 30 would be better once I add a weight bar/ballast to the 3pt/quick hitch.

 

[Shawn T. W]

The fronts are more critical in my opinion, I run the rears quite a bit lower than they recommend, if they aren't squatting, they are OK!

I run 10 PSI in both my tractors rear tires ...

 

[PoTreeBoy]

Same as Shawn. If you carry a heavy load up front you want maximum pressure to prevent rolling a tire off. You can lower if for mowing. I think I've got 15 or 20 in the rears, but they're toting the backhoe. On the Ford, I think we've got 10 or less, and that's with the Bush Hog.

 

[NCL4701]

Third vote for above. Max per sidewall in fronts for loader work. 10 to 15 psi in rears regardless whether they have liquid ballast or not. The vast majority of both ride quality and traction is dependent on the rear tires. Lower pressure increases the ground to tire contact patch for better traction and increases sidewall flex for better ride quality.

Dealer delivered mine with 36psi in the liquid ballasted rears. Rode like it was on steel wheels and traction was disappointing. Reduced to 12psi similar to our older tractors. Night / day difference in both ride and traction.

 

[Farm Fun]

Thanks for the replies. Going with 44 up front (helps when I correctly read the sidewall) and 20 in the rear to see how that works out.

 

[imarobot]

Just wondering, why does the manual spec 20psi for the front tires? Are they spec'ing with no loader or anything else on the front of the tractor?

 

[Farm Fun]

Just wondering, why does the manual spec 20psi for the front tires? Are they spec'ing with no loader or anything else on the front of the tractor?

My manual lists 44 for the front with a loader (10 without loader) , 20 for the rear with a loader (10 without loader). That's for the R14 tire sizes noted in my original post.