Tires falling of the rims

[RickB]

Industrial tires have stiff sidewalls and will not necessarily show the effects of low pressure (given the relatively low weights of the average CUT) until the bead lets go. Tire beads WILL NOT unseat in any type of weather IF THE TIRE IS PROPERLY INFLATED. What we are seeing here is technician failure, or operator failure, as the case may be. If a service tech had to come out and re-seat one tire and didn't check the pressure in the other three, that's not good service. If a dealer delivers a new tractor without checking inflation pressures, that's not good service. After a reasonable period of time, it's on the owner/operator to monitor tire pressures. Tires with tubes won't unseat until completely flat.

 

[KenB2920]

Industrial tires have stiff sidewalls and will not necessarily show the effects of low pressure (given the relatively low weights of the average CUT) until the bead lets go. Tire beads WILL NOT unseat in any type of weather IF THE TIRE IS PROPERLY INFLATED. What we are seeing here is technician failure, or operator failure, as the case may be. If a service tech had to come out and re-seat one tire and didn't check the pressure in the other three, that's not good service. If a dealer delivers a new tractor without checking inflation pressures, that's not good service. After a reasonable period of time, it's on the owner/operator to monitor tire pressures. Tires with tubes won't unseat until completely flat.

I really think this is the issue. The tractors I have had haven't had a problem although 4 of those 8 tires were loaded. I am willing to bet my neighbors new tractor tires were never checked by the installer. As for the tractor I was lent, it's been outside and used over and over. I bet they didn't check this one either.

Sent from my iPad using TractorByNet

 

[94BULLITT]

I think the dealer should have checked the tire pressure before they sent it out the door. The tires were probably next to flat for them to come off.

 

[crazyal]

One of my front tires debeaded. The pressure was about 25 psi and it was about zero out. I was trying to break up some ice on the driveway (it rained the night before a cold snap moved in). I was running in 2wd trying to spin my rear tires with ice spike tire chains with the HST response set to fast. I put my Kubota into 4wd and stepped on the hst pedal and because my front wheels were turned I watched the steel wheel spin but the tire didn't. It was pretty much immediate that the tire came off the bead. I just put the loader down and backed up to the house keeping most of the weight off the tire.

Because tractor wheels do not have the rolled bead like an automotive wheel has once it starts to slip or leak down it goes. I've never had an issue since them but I also have inner tubes for the front wheels so if it ever does I'll fix it and never have to worry again. My rear tires already have tubes. Tubes are cheap, ask the dealer to instill them and never worry again.

 

[RickB]

One of my front tires debeaded. The pressure was about 25 psi and it was about zero out. I was trying to break up some ice on the driveway (it rained the night before a cold snap moved in). I was running in 2wd trying to spin my rear tires with ice spike tire chains with the HST response set to fast. I put my Kubota into 4wd and stepped on the hst pedal and because my front wheels were turned I watched the steel wheel spin but the tire didn't. It was pretty much immediate that the tire came off the bead. I just put the loader down and backed up to the house keeping most of the weight off the tire.

Because tractor wheels do not have the rolled bead like an automotive wheel has once it starts to slip or leak down it goes. I've never had an issue since them but I also have inner tubes for the front wheels so if it ever does I'll fix it and never have to worry again. My rear tires already have tubes. Tubes are cheap, ask the dealer to instill them and never worry again.

You will never convince me that happened with 25 PSI in the tire. I know you don't care what I believe, and that's OK, too.

 

[Tx Jim]

You will never convince me that happened with 25 PSI in the tire. I know you don't care what I believe, and that's OK, too.

Me neither. I agree air pressure in tire would have to be below spec's to get unseated.

 

[Gary Fowler]

One of my front tires debeaded. The pressure was about 25 psi and it was about zero out. I was trying to break up some ice on the driveway (it rained the night before a cold snap moved in). I was running in 2wd trying to spin my rear tires with ice spike tire chains with the HST response set to fast. I put my Kubota into 4wd and stepped on the hst pedal and because my front wheels were turned I watched the steel wheel spin but the tire didn't. It was pretty much immediate that the tire came off the bead. I just put the loader down and backed up to the house keeping most of the weight off the tire.

Because tractor wheels do not have the rolled bead like an automotive wheel has once it starts to slip or leak down it goes. I've never had an issue since them but I also have inner tubes for the front wheels so if it ever does I'll fix it and never have to worry again. My rear tires already have tubes. Tubes are cheap, ask the dealer to instill them and never worry again.

Perhaps the remaining tire was 25 PSI, but I also doubt that the tire that popped the bead had 25 PSI in it. Each time I popped one off it was working on a slope and the roll of the slope forced the low pressure tire off the rim. Checking the other 3 found them all low but I suspect not so much as the one that came off. As I stated and RICKB emphasized, R4 tires have such stiff side walls that the relative light weight of the CUTs don't flex the walls and show off a low tire like we are used to seeing on autos and even R1 tires. When I checked mine after de-seating the rear, the other side only had 5 PSI in it and it didn't show any low pressure flexing at all. I think the fronts had about 15 in them. I don't know why the front came off several months later, but supposedly it was also low but it had no leak according to the tire shop but evidently it leaked at the stem or bead enough to loose pressure. He cleaned out the dirt from the bead checked the tire and found nothing else wrong with it. I had previously aired it up to 35 PSI.

 

[94BULLITT]

One of my front tires debeaded. The pressure was about 25 psi and it was about zero out. I was trying to break up some ice on the driveway (it rained the night before a cold snap moved in). I was running in 2wd trying to spin my rear tires with ice spike tire chains with the HST response set to fast. I put my Kubota into 4wd and stepped on the hst pedal and because my front wheels were turned I watched the steel wheel spin but the tire didn't. It was pretty much immediate that the tire came off the bead. I just put the loader down and backed up to the house keeping most of the weight off the tire.

Because tractor wheels do not have the rolled bead like an automotive wheel has once it starts to slip or leak down it goes. I've never had an issue since them but I also have inner tubes for the front wheels so if it ever does I'll fix it and never have to worry again. My rear tires already have tubes. Tubes are cheap, ask the dealer to instill them and never worry again.

I believe it happened with 25 PSI in it. I noticed the sidewalls on the 4240 flex a lot. When I get a fairly heavy load on the front I make sharp turns slowly. If you mash on the hydro pedal you could roll a tire off. I have also notice if you are pointed downhill the and turn the sidewalls flex. Kubota specs 20 PSI for a tractor equipped with a loader. I run 30 PSI. I wear out these tires i'll get something with more plies.

 

[k0ua]

I believe it happened with 25 PSI in it. I noticed the sidewalls on the 4240 flex a lot. When I get a fairly heavy load on the front I make sharp turns slowly. If you mash on the hydro pedal you could roll a tire off. I have also notice if you are pointed downhill the and turn the sidewalls flex. Kubota specs 20 PSI for a tractor equipped with a loader. I run 30 PSI. I wear out these tires i'll get something with more plies.

FWIW, my Kioti's front tires are speced to run at 45psi. The rears at 20psi.. So that is what I do, and I check pressure frequently.

 

[94BULLITT]

FWIW, my Kioti's front tires are speced to run at 45psi. The rears at 20psi.. So that is what I do, and I check pressure frequently.

Is that what is on the sidewall or in the owners manual?

I think the Bobcat owners manual called for 40 in the fronts.