I am a little confused as to the right answer.Just replaced a front tire on my l3800. Manual says 30 psi should be used then in a different paragraph it says use the max if using weights in front or a loader.Mine is equipted with a loader.Tire says max psi 45 so should I be using 45 or 30
Thank you
Typically the more load on a tire the more air you need to "balance" the load to the the grip on the surface. However - I have found that max air pressure has a some what bad effect on ....YOU ! The higher the air pressure in the tire the harder it is on your body. The tire is the only shock absorber you have on the tractor, so a certain air pressure is better than the max or min.
I would say if you are going to be doing a lot of loader work at max bucket weight, then bump it up to 40's - if you are only going to get a load occasionally, and not a max load all the time, I would run around 35 or so.
Only you will "know" where the sweet spot is according to how you use your machine. Under psi tires are hard to turn with loaded bucket, and max psi don't grip as well as "proper" psi.......
experiment and I think you will find a point that meets the best all round.