R 14 Tires

[HC11]

I have a new MX6000 with R14 tires with the rears being loaded. My issue is the tractor vibrates on any hard surface like my driveway and does this in any range. They did widen the rear tires by making the adjustment on the rims. Is this common with the R14 tires?

 

[Matt Ellerbee]

Check the pressure. Bet it is crazy high. Could have too much ballast in the tires also.

 

[Amarillo]

I have the 6000 too and mine vibrates when roading it as well. My dealership let some air out of the tires but it didn't help. He said the other 6000s they had did the same thing when they tested them. I have the R4 Industrial tires.

 

[mikester]

Air suspension seat is a great bolt on option

 

[HC11]

Air suspension seat is a great bolt on option

Thanks, as I have the seat on order. When my dealer placed the order, there were 150 on back order. That should tell Kubota something about their seats.

 

[mcmxi]

I have a new MX6000 with R14 tires with the rears being loaded. My issue is the tractor vibrates on any hard surface like my driveway and does this in any range. They did widen the rear tires by making the adjustment on the rims. Is this common with the R14 tires?

I have an MX6000 with R4 tires like @Amarillo and there's definitely a vibration at a certain speed on the asphalt driveway. When I'm moving snow I don't really notice it as much, but now summer is here it's very obvious when moving around. It's not a big deal to me since it's not terrible and I don't need to be on the asphalt much. My rear tires have been juice and I have wheel weights.

I ordered the tractor with the upgraded Grammer seat but it obviously doesn't change the noise or vibration due to the lugs on the tires.

 

[HC11]

I have an MX6000 with R4 tires like @Amarillo and there's definitely a vibration at a certain speed on the asphalt driveway. When I'm moving snow I don't really notice it as much, but now summer is here it's very obvious when moving around. It's not a big deal to me since it's not terrible and I don't need to be on the asphalt much. My rear tires have been juice and I have wheel weights.

I ordered the tractor with the upgraded Grammer seat but it obviously doesn't change the noise or vibration due to the lugs on the tires.

Thanks as these reply's make me feel better, as I am not alone in this. It is what it is and I have ordered the air ride seat also.

 

[mcmxi]

Thanks as these reply's make me feel better, as I am not alone in this. It is what it is and I have ordered the air ride seat also.

This is my second MX6000 with the first one being an open station, and I think it's more noticeable with the cabbed version. Speed definitely plays a part in the vibration so maybe trying slowing down or speeding up to find a sweet spot if it's really annoying.

 

[hedgerow]

I have a new MX6000 with R14 tires with the rears being loaded. My issue is the tractor vibrates on any hard surface like my driveway and does this in any range. They did widen the rear tires by making the adjustment on the rims. Is this common with the R14 tires?

I have a MX6000 open station with the R4 tires I do have iron weighs but no juice in the tires. I road my MX a lot in the summer spot spraying. Gravel, black top and concrete. I don't notice any different vibrations on it than any other tractor I have and road. Every year I say I am going to upgrade my seat to a air seat and haven't yet. Maybe when winter comes I will look into up grading the seat.

 

[HC11]

I have a MX6000 open station with the R4 tires I do have iron weighs but no juice in the tires. I road my MX a lot in the summer spot spraying. Gravel, black top and concrete. I don't notice any different vibrations on it than any other tractor I have and road. Every year I say I am going to upgrade my seat to a air seat and haven't yet. Maybe when winter comes I will look into up grading the seat.

It is vibrating even on the field now that they have dried out and much more firm. I will speak to my dealer Monday as this is very annoying. This is my 5th Kubota tractor and the only one that had this problem. If the juice in the rear tires is causing the problem I would rather go without it, as I almost always have something on the rear.

 

[Matt Ellerbee]

.

Like I stated earlier, check the psi. As well as the ballast, could have too much. Too much ballast doesn’t leave enough room for air, which means no cushion.

 

[HC11]

Like I stated earlier, check the psi. As well as the ballast, could have too much. Too much ballast doesn’t leave enough room for air, which means no cushion.

Thanks Matt, I will do just that as I lowered the front pressure as it didn't help, as is obvious now the problem is the rears. I first thought the lug nuts were not tight as it felt like it was coming from the rear tires. Thanks for the tip about the cushion thing as it all makes sense now.

Amarillo stated his dealer lowered the air pressure in his R4 tires which were loaded and it didn't help. If that ends up being my case, I will have the juice taken out and use a weight box when needed. I have to travel on a dirt road for different jobs and is impossible like it is now. When I tried out the tractor before buying it there was no vibration at all with no loaded tires.

 

[Matt Ellerbee]

Thanks Matt, I will do just that as I lowered the front pressure as it didn't help, as is obvious now the problem is the rears. I first thought the lug nuts were not tight as it felt like it was coming from the rear tires. Thanks for the tip about the cushion thing as it all makes sense now.

Amarillo stated his dealer lowered the air pressure in his R4 tires which were loaded and it didn't help. If that ends up being my case, I will have the juice taken out and use a weight box when needed. I have to travel on a dirt road for different jobs and is impossible like it is now. When I tried out the tractor before buying it there was no vibration at all with no loaded tires.

Air the fronts up to max, for loader work. I wouldn’t remove the ballast completely, just so it’s 75% or so. These tractors are light in the rear. I have tire ballast, 3 sets of weights and usually a 700+ lb box blade or a 990 lb tiller and can lift the rear at will.

This shows the 75% ballast fill, the rest is air, for the cushion factor.

 

[jyoutz]

Air the fronts up to max, for loader work. I wouldn’t remove the ballast completely, just so it’s 75% or so. These tractors are light in the rear. I have tire ballast, 3 sets of weights and usually a 700+ lb box blade or a 990 lb tiller and can lift the rear at will.
View attachment 131348
This shows the 75% ballast fill, the rest is air, for the cushion factor.

Yeah it sounds like they overfilled the tires and didn’t allow for enough air cushion.

 

[Matt Ellerbee]

Yeah it sounds like they overfilled the tires and didn’t allow for enough air cushion.

Possibly. Or OP expectations are too high. Lol. It is a tractor and not a BMW after all. I hope he finds a happy medium somewhere.

 

[mcmxi]

Air the fronts up to max, for loader work. I wouldn’t remove the ballast completely, just so it’s 75% or so. These tractors are light in the rear. I have tire ballast, 3 sets of weights and usually a 700+ lb box blade or a 990 lb tiller and can lift the rear at will.
View attachment 131348
This shows the 75% ballast fill, the rest is air, for the cushion factor.

The local dealer filled my MX6000 and M6060 rear tires with beet juice and I can check the tire pressure with the valve at 12 o'clock without any liquid coming out so I'm confident that my tires aren't overfilled, but on asphalt I can definitely feel a vibration. It's just part of the ownership experience with these tires.

 

[Matt Ellerbee]

The local dealer filled my MX6000 and M6060 rear tires with beet juice and I can check the tire pressure with the valve at 12 o'clock without any liquid coming out so I'm confident that my tires aren't overfilled, but on asphalt I can definitely feel a vibration. It's just part of the ownership experience with these tires.

Thought you had R4 on both of yours? OP is asking about R14.

 

[HC11]

Possibly. Or OP expectations are too high. Lol. It is a tractor and not a BMW after all. I hope he finds a happy medium somewhere.

I am 82 and been on tractors all my life, This is my 5th kubota as well as others and all had loaded rears and never a problem with those. None of the others had R14 tires, they were ag or R4. I am sure things will work out and thanks again for the help.

 

[Matt Ellerbee]

I am 82 and been on tractors all my life, This is my 5th kubota as well as others and all had loaded rears and never a problem with those. None of the others had R14 tires, they were ag or R4. I am sure things will work out and thanks again for the help.

I was assuming… you know where that gets us. I didn’t know your experience, now I do. I’m sure you’ll figure something out.

 

[mcmxi]

Thought you had R4 on both of yours? OP is asking about R14.

Ooops ... you're absolutely right. I had R4s on the open station and have the same on the cabbed model. Next stop ... dementia!