FEL not level

[dirtydeed]

Will try raising 5lbs - not ready to drop the other side
Thanks

Glad you got the issue figured out.

Curious as to why you run 30lbs in the rear tires? That must be one bone jarring ride. I usually run 12-15 lbs in my rear tires. That seems get me the best ground contact patch for traction and is a heck of a lot easier on my teeth and bones.

 

[ctfjr]

Glad you got the issue figured out.

Curious as to why you run 30lbs in the rear tires? That must be one bone jarring ride. I usually run 12-15 lbs in my rear tires. That seems get me the best ground contact patch for traction and is a heck of a lot easier on my teeth and bones.

Good question. When I was loading the rears I asked the dealer near us what they would recommend for pressure. That's what he said. . .

 

[dirtydeed]

Good question. When I was loading the rears I asked the dealer near us what they would recommend for pressure. That's what he said. . .

Take a look at your rear tires (r-4's?) and see if you are getting full contact across the tread. If not, you'll wear the centers out first. Anyway. maybe dropping the pressure will get you some better traction and a more "forgiving" ride?

 

[ctfjr]

They do look like they are making good contact but you really got me thinking about this. I dug out the wsm I have:

200 kPa ~= 29psi

I'm pretty sure that is the R4 spec

 

[dirtydeed]

right, I figured that it probably is.
Mine calls for similar, I just wouldn't inflate them that high. I'd like to keep from chipping my teeth.

 

[Sammy3700]

I have the same problem on a 2014 L3800 I am not a engineer by any means however I found the mounts that bolt to the tractor are off about 1/2 of a inch apparently the factory jig is off on the later tractors. I recently bought a 2012 L3800 and it is level. Not saying this is correct way to fix but I removed both sides and drilled all holes to 13/16. When reinstalling got all bolts ran up used a floor jack to keep upward pressure on the right side while tightening and allowed left to stay down on the bolts now it is just right.

 

[Henro]

right, I figured that it probably is.
Mine calls for similar, I just wouldn't inflate them that high. I'd like to keep from chipping my teeth.

I run the R4s on my B2910 in the 12 to 15 psi range (have not checked them in a couple years). My tires are liquid filled with WW fluid, to valve stem level at 12 o'clock.

My gut tells me that there is a difference between a tire that is totally filled with air, and one that only has a 25% air pocket at the top. Since pressure increases in the tire with volume change, it just seems like the smaller volume of the loaded tire air pocket would be more susceptible to pressure increases with tire shape changes during normal operation.

Never had an issue running at 12 psi or so. I certainly see no reason why I would want to increase my tire pressure above 15 psi...

 

[OrangeKrush]

I run the R4s on my B2910 in the 12 to 15 psi range (have not checked them in a couple years). My tires are liquid filled with WW fluid, to valve stem level at 12 o'clock.

My gut tells me that there is a difference between a tire that is totally filled with air, and one that only has a 25% air pocket at the top. Since pressure increases in the tire with volume change, it just seems like the smaller volume of the loaded tire air pocket would be more susceptible to pressure increases with tire shape changes during normal operation.

Never had an issue running at 12 psi or so. I certainly see no reason why I would want to increase my tire pressure above 15 psi...

Bingo! I was thinking about this the other day but was not sure how to put it..

 

[ctfjr]

Today with the summer-like temps I pulled the tractor out and checked the rears again. I lowered the left one to 25psi and left the right one at ~29psi. That pretty much levelled the FEL. I haven't noticed any particularly hard ride.

 

[Davatrees]

Today with the summer-like temps I pulled the tractor out and checked the rears again. I lowered the left one to 25psi and left the right one at ~29psi. That pretty much levelled the FEL. I haven't noticed any particularly hard ride.

 

[Davatrees]

I was having the same issue with my new B2601 and it was really bugging me that the bucket wouldn’t sit level. Kept thinking something was bent. Then I saw this thread. So I checked the rear tire pressure, which I had filled with Rimguard a week after taking delivery of the tractor, and one had less than 5 psi and the other had 30 psi. After evening them out, everything seems to be much better.