Question for backhoe users?

[john_bud]

I agree that loaded tires make a BH work more effectively.


I've seen the reason K used for not loading the rear's and seem to recall it was to do with possibly exceeding the tested rating of the ROPS structure. Could be wrong, that's just from memory.

jb

[Volfandt]

I've run loaded rears on my BX23 for about 3 yrs now and haven't had any problems yet.
According to the owners manual, the reason Kubota gives for not running loaded rears is due to the additional compression the rear tires will experience when carrying the BH and the tractor rolls over a large rock or other obstruction, theres a possiblilty that the compressed fluids will break the bead causing a rapid loss of both air and liquid, flattening the tire. It could even damage the tire and/or cause one to loose control of the tractor also.
To help offset this and when one wants to run loaded tires w/a BH, it's good to not exceed 3/4 fluid fill and even better not to exceed 1/2 fluid fill. This allows more space for fluid compaction.
Mine are loaded less than 3/4 but alittle more than 1/2 full.

I routinely work the FEL w/o the BH mounted and the additional ballast I get far offsets the possibility that I may blow a loaded rear tire.

[wushaw]

John the ROPS theory is questionable since a BB could weigh as much or more than a BH, I am not talking about the light duty BBs but the industrial ones. I know mine weighs 830lbs and the BH I have "BH75" doesn't feel it weighs much more if any.

[MarkV]

Originally Posted by wushaw

John the ROPS theory is questionable since a BB could weigh as much or more than a BH, I am not talking about the light duty BBs but the industrial ones. I know mine weighs 830lbs and the BH I have "BH75" doesn't feel it weighs much more if any.

Wushaw your point is well taken though I bet your backhoe weighs more than you think. On my tractors the B21 hoe is 892 lbs and the one on L39 is 1598 lbs. I would have to wonder if it has to do with where that weight is carried. Both a backhoe and a cab will be carrying it much higher than a box blade.

MarkV