s219
Super Member
- Joined
- Dec 7, 2011
- Messages
- 8,548
- Location
- Virginia USA
- Tractor
- Kubota L3200, Deere X380, Kubota RTV-X
View attachment 423647
This is the outer boss that's supposed to hold the non-rotating pivot pin for the main loader arm pivot. Kubota drilled the holes for the keeper bolts so oversized that the pin ends up rotating, and with no grease fitting on the boss, accelerated wear is the result. Since Kubota neglected to bush the pivots, the repair involves line boring the assembly and fabricating bushings and new pins. This failure had nothing to do with abuse, and was a direct result of bad design and engineering choices made by Kubota.
View attachment 423651
This is a picture of the FEL mounts off the same tractor. Side by side are shown the original broken mount and updated replacement. Kubota realized that the original design wasn't strong enough to survive lateral loads and thickened the web as a result. Again, that has nothing to do with abuse and everything to do with bad design and engineering.
View attachment 423652
This is what happens when the outer cover on the 4WD front hub fails due to side loads. It's a cast iron or steel part held in place by a ring of bolts, and it carries a large roller bearing to support the outer end of the stub axle. Kubota must have used the same side load calculations for the failed loader mounts that they used to design the outer cover. Unfortunately the replacement cover design hasn't been upgraded and the resulting flex is still breaking mounting bolts and causing them to loosen. It's only a matter of time before the new cover fails in the same manner as the old one.
What I bought is an over sized garden tractor that would have been fine if all I needed to do was cut the grass, push some snow, and maybe once in a while move some gravel or firewood. Knowing what I know now, I'd have been much better off with a Cat, Deere, or Ford backhoe/loader for the landscaping work I needed to do. The OP of this thread mentioned clearing woods, and even suggesting that a Kubota CUT would be suitable for such a job is irresponsible at best.
Hate to say it, since I sympathize with your plight, but I think your tractor was subjected to serious abuse before you got it. I pass by about 20 farms to get to my place, and 80% of them have Kubotas, many are quite old. When talk of tractors comes up at our annual fish-fry fundraisers for the VFD, I know I would have heard about problems if they were "typical" for Kubotas. We talk about all things tractors, and hear about issues, but nothing like what you've posted here.