Will higher pressure keep my tires on?

KauaiJohn

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Equipment
B3030HST
Apr 25, 2011
33
0
6
Kalaheo HI
My B3030 manual says the front tires should be 24psi.
The tires say max pressure if 45psi.

I have kind of rough terrain, steep, mostly covered with grass but a few places
with small gullies.

For the second time in about 15 months, the front tire has rolled off the rim.
It was doing fine at the higher pressure (40psi), but I figured I should follow the Kubota specs.

Was it a mistake? Should I have left it at a higher pressure?
 

85Hokie

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Jul 13, 2013
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My B3030 manual says the front tires should be 24psi.
The tires say max pressure if 45psi.

I have kind of rough terrain, steep, mostly covered with grass but a few places
with small gullies.

For the second time in about 15 months, the front tire has rolled off the rim.
It was doing fine at the higher pressure (40psi), but I figured I should follow the Kubota specs.

Was it a mistake? Should I have left it at a higher pressure?
Didnt the higher pressure jar the living hell out of you ? I pumped up mine to upper limit and though I was going to loose my teeth!:):eek:

The front tires are the ONLY shocks you have on a tractor - I would not run them at the tires max psi. Are you sure there is not a small leak that is slowing allowing air to leak out and then the tire bead breaks?:)
 

hodge

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John Deere 790 John Deere 310 backhoe Bobcat 743
Nov 19, 2010
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Love, VA
As Hokie said, the lower pressure gives you cushion. The higher pressure rating is for max load, like if you are using a loader. You don't typically run max pressure, because of the harsher ride. But, if that's what keeps your tire on the rim (barring not having a slow leak), then you are safe to run it. It's just a rougher ride, it doesn't hurt anything.
 

Tooljunkie

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May 13, 2014
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I agree, a slow leak will not take long to deflate to the point where it rolls off the bead easily. Many times will damage tire and risk rim damage. Installing a tube or replacing tire are only options. Manual shows one tire pressure, and quite often the loader frame part of manual reccomends higher pressure.
 

KauaiJohn

Member

Equipment
B3030HST
Apr 25, 2011
33
0
6
Kalaheo HI
Thank you all for your input.

The tire was remounted and appears to be "just fine".

It had a tube, which was used again.

The last time this happened (about 14 months ago) there was no tube and the tire just rolled off the rim while making a tight turn. I wrecked the bead on the tire. It took 6 weeks to get a tire. (I think the time it took gets longer every time I talk about it.) So, even though the tire was fine, I bought another one (@ $225) just to have it lying around.

I may see if anyone has a 7-12 rim so I can just have a spare.

FWIW: I had been running my tire at just under max rating for months. I decided I should use the Kubota recommendation (which is the same even when the front loader is on). Two weeks after dropping the pressure, it rolled off. I can't drive fast enough on my property to jar my teeth. (I usually keep the tractor in low.)

I only mention all this so that someone else who reads this might get a hint. I'm not saying higher pressure will help me, but I'm pretty sure it won't hurt.

Thanks again guys.
 

tiredguy

New member

Equipment
B3030 HSTC,B2781 51" front mounted snowblower,60" MMM
Jan 21, 2010
302
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0
northern lower Michigan
Don't exceed the air pressure that Kubota recommends, you'll probably
end up ruining the tire. Installing tubes will help it keep from losing air
but make sure there isn't something in the tire that's causing the loss or
you'll end up needing to have the tube patched and the tire repaired if
you're lucky and that's all the damage that gets done.
Al