A little disappointed with Kubota

   / A little disappointed with Kubota #141  
None of it looks bad to me. The dish is centered on the hub with little or no gaps. No cracks. I'd only replace the hardware and add the flat washers. Backside nuts if you thinks that's needed. Overall I it looks a heck of a lot better than many.
 
   / A little disappointed with Kubota #142  
I agree. It has moved at some point, thus the rust stains.

For whatever reason they are too loose.
 
   / A little disappointed with Kubota #143  
To the OP, why do both flat and lock now? I thought the consensus was to just do the hardened flat washers?
 
   / A little disappointed with Kubota #144  
Weights traction. ;)
 
   / A little disappointed with Kubota #145  
What's been said several times ... ~ "there never should have been lock-washers on wheels." Those are better suited to clamping soft materials (wood, etc), or when application torque is well shy of a bolt's maximum capacity and no side-loading is to be expected.

Doesn't this go back to what the dealer or distributor did wrong, by assembling with lock vs flat washers? btw, I might go as high as 220 ft/lb when tightening these, but I'd be quite surprised to find that 160 ft/lb wouldn't do with proper parts installed.

I'd do the post-install re-torque (re-check) on these more than once, esp if holes might be burred-up much. :2cents:.
 
   / A little disappointed with Kubota #146  
What's been said several times ... ~ "there never should have been lock-washers on wheels." Those are better suited to clamping soft materials (wood, etc), or when application torque is well shy of a bolt's maximum capacity and no side-loading is to be expected.

Doesn't this go back to what the dealer or distributor did wrong, by assembling with lock vs flat washers? btw, I might go as high as 220 ft/lb when tightening these, but I'd be quite surprised to find that 160 ft/lb wouldn't do with proper parts installed.

I'd do the post-install re-torque (re-check) on these more than once, esp if holes might be burred-up much. :2cents:.

It's been said many many times. Nothing to do with the dealer or assembler. This is how KUBOTA does it
 
   / A little disappointed with Kubota #149  
It's been said many many times. Nothing to do with the dealer or assembler. This is how KUBOTA does it

And how did their method work out?

On average, very well I would say. We are NOT hearing from several tens of thousands of Kubota owners.
The $0.06 split washer works so why use a $0.50 flat washer to do better? Youre stuck with their choice unless you change the washers.

I would only consider that necessary if the wheels were being removed and reinstalled relatively frequently.​
 
   / A little disappointed with Kubota #150  
On average, very well I would say. We are NOT hearing from several tens of thousands of Kubota owners.

We don't know about the other owners, we are only working with one particular owner who has one machine. That one did fail, and whether a washer change will fix it or not, we do know that it is an easy matter to greatly increase the clamping force with absolutely no downside to the machine or the owner. Perhaps for a manufacturer who is counting pennys and has product liability there may be a financial reason to stay with an inferior design. But for the owner? For a few dollars?? Why not upgrade???
rScotty
 

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