Mahindra One
Member
I have a 4025. I believe the rear tires are 12.4x28. They are filled with water. The manual is not clear to me on recommended pressure. This is off road use. Any help on the appropriate pressure level would be appreciated.
What Tire Pressure
- Thread starter Mahindra One
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Gary Fowler
Super Star Member
- Joined
- Jun 23, 2008
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- 11,917
- Location
- Bismarck Arkansas
- Tractor
- 2009 Kubota RTV 900, 2009 Kubota B26 TLB & 2010 model LS P7010
Most tractor rear tires will run between 8 and 12 PSI regardless of filled with water or all air. You need to adjust it down till the tire has a full tread bar setting on the ground with the heaviest equipment loaded on it that you will have. This will give you the best traction and ride. They side wall will show a little bit of flexing or buldge at the ground contact point just like your radial car tires do. You can easily check the contact area by driving thru a wet concrete surface and see how much of the tire is wetted. You can see the same thing if you wet the tires and drive thru dry dirt and look at the treads. The whole bar tread should be covered with dust.
Adjust the front tires similar, but if you have a loader, they will require much more air to keep them from rolling off the rim with a loader full. I think my Yanmar takes about 28 PSI in the front. You can easily tell if the front is underinflated by watching the tires in a turn. If they are trying to roll under the rim, you are low on pressure. Just dont exceed the max pressure printed on the tire.
Most tractor rears will come over-inflated when shipping to keep them nice and tight on the tie down. I checked my LS tractor and it had 22 PSI in the rears. I reduced it to 12 and it could use a bit more to get full tread contact.
Adjust the front tires similar, but if you have a loader, they will require much more air to keep them from rolling off the rim with a loader full. I think my Yanmar takes about 28 PSI in the front. You can easily tell if the front is underinflated by watching the tires in a turn. If they are trying to roll under the rim, you are low on pressure. Just dont exceed the max pressure printed on the tire.
Most tractor rears will come over-inflated when shipping to keep them nice and tight on the tie down. I checked my LS tractor and it had 22 PSI in the rears. I reduced it to 12 and it could use a bit more to get full tread contact.
Texan4Life
Gold Member
good info.. we run 10psi in our loaded rears.
read the side wall of the tire for max psi rating. usually it will read something like " xxxx weight at xxPSI max" as long as you dont exceed this your good to go (loaded or not)
read the side wall of the tire for max psi rating. usually it will read something like " xxxx weight at xxPSI max" as long as you dont exceed this your good to go (loaded or not)
OP
Mahindra One
Member
Really good responses. Thanks very much.
Regarding the xxxxx@______, my loads are given in something called
kPg (if I remember correctly). I haven't been able to find that measure in any conversion charts just yet.
Thanks again for the info.
Regarding the xxxxx@______, my loads are given in something called
kPg (if I remember correctly). I haven't been able to find that measure in any conversion charts just yet.
Thanks again for the info.
Thanks for your great comments, it is true this site is great.
I haven't quite figured out how to set the PRV on the tractor to the 2500 psi that it is supposed to be. Although I have never really found that the tractor has not been able to do something I wanted it to. I figure that I have not really seen it's full potential yet
.
I noticed that the top link bracket connected to the tractor is still taking quite a beating, although allot less than it was before. We discussed modifying the sub frame to a 4 point system instead, but we don't think that it is worth the effort.
LureMaker I am sure that it would not be that difficult to get that sub frame to fit you BH. For us the tractor side was by far the most difficult.
I haven't quite figured out how to set the PRV on the tractor to the 2500 psi that it is supposed to be. Although I have never really found that the tractor has not been able to do something I wanted it to. I figure that I have not really seen it's full potential yet
. I noticed that the top link bracket connected to the tractor is still taking quite a beating, although allot less than it was before. We discussed modifying the sub frame to a 4 point system instead, but we don't think that it is worth the effort.
LureMaker I am sure that it would not be that difficult to get that sub frame to fit you BH. For us the tractor side was by far the most difficult.