front axle housing

[7800DUDE]

Snapped left front axle housing on a B 7800 7 yrs old 1000 hrs

 

[KennyV]

On what tractor, what were you doing at the time... is there a loader on your tractor, & did you use 3Pt counter weight, or have rear wheel weights... Can you post pictures? KennyV

 

[5030]

Sounds like rank abuse to me. Beat 'er until she breaks then whine.

 

[easygo]

This is the third such failure I have read about here on TBN.

I found one but there was another one for sure.
www.tractorbynet.com/forums/kubota-owning-operating/149881-b7800-busted-axle-441-hours.html

 

[jakell2010]

5030,,,claiming rank abuse without supporting information is a bit premature

 

[7800DUDE]

YES 5030 this is true it is a little harsh. I have read other threads im not to first other people have had a lot and less hrs than me. for the other question I have a loader and loaded tires and a backhoe. my down ward tube ill try to get pics it is 120.00 @ dealer to fiz I had it apart in 1/2 hr.

 

[5030]

5030,,,claiming rank abuse without supporting information is a bit premature

No it's not. If you operate the unit within it's design parameters, it will most likely never break. If it does, it will be early in it's lifespan and due to a deficiency in the casting and under warranty. Not at a thousand hours.

I've seen many housings broken on larger tractors and it's alway an abuse issue.

Reading through posts on here (and other forums), it becomes crystal clear that a large percentage of people exceed the limitations of their machines on a regular basis, or, I should have bought a larger unit, but I didn't, so I'll make my smaller unit, larger unit capable'...oftentimes with disastrous results.

Housings don't fracture at 1000 hours because there was an inherent design/casting flaw. It failed because it was over stressed.

End of story...

Other than the sordid details.:laughing:

 

[Farmerford]

Glad you can get it running again that cheaply.
Be sure to read that little book with "design parameters" that Kubota gave you with the replacement part. I should probably read mine again.

How about sending us some pics.

 

[7800DUDE]

Just an FYI to all the ones that said it was abuse the dealer looked at the case said water got into it and cracked case if was younger and less hrs they would have warranty it. all fixed seals and case 177.00 repaired myself

 

[Verticaltrx]

No it's not. If you operate the unit within it's design parameters, it will most likely never break. If it does, it will be early in it's lifespan and due to a deficiency in the casting and under warranty. Not at a thousand hours.

I've seen many housings broken on larger tractors and it's alway an abuse issue.

Reading through posts on here (and other forums), it becomes crystal clear that a large percentage of people exceed the limitations of their machines on a regular basis, or, I should have bought a larger unit, but I didn't, so I'll make my smaller unit, larger unit capable'...oftentimes with disastrous results.

Housings don't fracture at 1000 hours because there was an inherent design/casting flaw. It failed because it was over stressed.

End of story...

Other than the sordid details.:laughing:

This is a known issue on the B2710, B2910 and some of the B7800's. I don't know if it was a design flaw, heat treating problem, or what but sometimes they do fail. Kubota came up with a new part that is used on the B3200 and B26 which is much stronger and is the new replacement part for the B7800.

 

[BeezFun]

Just an FYI to all the ones that said it was abuse the dealer looked at the case said water got into it and cracked case if was younger and less hrs they would have warranty it. all fixed seals and case 177.00 repaired myself

Please tell more about how water got in, I've got a B2710. Was it condensation or a lot of water? Glad it worked our relatively cheap for you.

 

[7800DUDE]

the dealer did not know how the water may have gotten there ill have pics of the part that cracked it is not the hub like most it is the tube where it turns left and right