Broke dipper cylinder :(

[grizzjeeper]

Finally got around to using the backhoe after cutting trees for a 1000 ft road, on my third hour of digging stumps, *SNAP* Dipper cylinder broke in half!!! Wasn't doing anything unusual, funny the cylinder looks like cast aluminum inside /forums/images/graemlins/smile.gif

 

[bczoom]

I don't have the specifics, but have heard this more than once. Check with your dealer as I believe Kubota is aware of the issue and is replacing the cylinders.

 

[Junkman]

It would help to fill out your profile. We have no idea as to what model tractor you have. Some Kubota models have had problems with the cylinders, and others have not. I assume that you have one of the model tractors that the cylinder is an issue with..

 

[KennyV]

Ben…
The three main parts in a ‘hydraulic cylinder’ are; Rod, Piston, and the Cylinder. Do you really mean the cylinder broke in half? /forums/images/graemlins/confused.gif
At the attaching point? Or did the cylinder bore split? KennyV.

 

[Bob53]

Same thing happend to me with a BH75. So if its a BH75 or I think there may be another model that is new with the same problem. The clylinder was designed too small for the dipper clylinder and Kubota is replacing with a larger diameter cylinder.

 

[BandDcabinet]

Does anyone know the diameter of the replacement cylinder? It would be nice to know so that owners could check the cylinders on BH75s to see if they have the new or old cylinders.

D

 

[jcollins]

I don't remember Kubota issuing the diameter of the new cylinder but here is the new part number. 7K501-32020 I have got to say Kubota reacted very quickly as the new parts look up programs already reflect the new part number.

 

[Junkman]

They may have reacted quickly with a new part, however that haven't issued a general recall of the machines that were sold with the defective cylinder. Seems that they are only replacing them as they break. A company that doesn't do a recall of a known defect isn't a good corporate citizen in my opinion. Kubota should have pictures of ostriches on their machines........ the company keeps there head in the sand just like an ostrich..... /forums/images/graemlins/mad.gif

 

[grizzjeeper]

Updated profile, I have a L3400 with a BH75.

It was the Piston that broke, I believe the rod and the piston are the same thing IE Piston rod. But generally the whole unit is called a cylinder even though technically the cylinder is the inside... Anyway the dealer told me they ordered one and will have it in three to four days. The replacement will be a larger unit. He said that Kubota only changes them when they fail. Odd they do not have some on hand for this then...

 

[JerryG]

<font color="blue">It was the Piston that broke, I believe the rod and the piston are the same thing IE Piston rod. </font>
The piston is the flat like round aluminum thing on the inside that you can't see. The rod is the chrome or dark rod that goes in and out.