L2800-L3400 PTO Making the right choice

[Goog]

I just returned from my dealer and gave them a copy of the PSB for the updated PTO cams. I said that everthing was working fine but I would like this done for hopefully preventing a future failure after the warranty expires. I love this forum. It has been great for information.

They understood and are supposed to call me back on Monday with a time for the repair to be done and it should be covered by the powertrain warranty.

I will post my story as it unfolds.

The salesman said that they just had a tractor in with this same ratcheting noise complaint and told the owner it was normal. Maybe they don't check there own service bulletins?

I also was looking at the B3030 and I would still take my L3400 over it. Just to small for me. If I were to change it would probably be to an L3240 so I could lift more weight with the bucket. Brian

 

[ccsial]

They understood and are supposed to call me back on Monday with a time for the repair to be done and it should be covered by the powertrain warranty.

I stopped by my dealer today and had them look up PSB-2005-052-A.

They printed a copy and agreed to update my L3400 under warranty.

It appears that Kubota no longer feels the need for an overruning clutch in the PTO. The new ones are solid and thus will not ratchet. Whether they are stronger remains to be seen. I could still see them chattering with a tiller.

I attached a picture of the new cams I scanned in from the copy the dealer gave to me. I love a good dealer.

 

[JC-jetro]

I stopped by my dealer today and had them look up PSB-2005-052-A.

They printed a copy and agreed to update my L3400 under warranty.

It appears that Kubota no longer feels the need for an overruning clutch in the PTO.

Overrunning PTO is needed only when the PTO is transmission driven, since only then stored kinetic energy of the blade assembly say a brush hug will push the tractor forward when the clutch is fully engaged. In live or independent PTO the PTO shaft is never linked to transmission. The picture shows a solid coupling to transfer torque with no ratcheting action. The coupling shown is close in design to a short coupled centrifugal pump with the exception a formed rubber piece in between to lessen the vibration and slight pump and motor shaft misalignment.

 

[DanielTerence]

Here's PSB-2005-052-A

 

[KubotaTerry]

Here's PSB-2005-052-A

Thanks, Daniel.... A nice clear picture of the new style cams.
You can see that the new style cams are definitely not "over-running". Interesting that they have a lot more "open space". I guess for ease of engagement. I wonder if these are any more robust than the previous version for the type of failure under load that Hammer was seeing. They won't "ratchet" on throttle-down, but it's not clear to me that the failures that Hammer experienced were related to the ratcheting. They may have been caused by the pounding on the faces in the forward direction caused by the constant loading and unloading of the roto-tiller tines.

Hammer, do you think you still have the old style cams in yours? Why wouldn't they have put in the new ones?

Terry

 

[Scott in IN]

I took the printout of PSB-2005-052-A (which is very nice by the way) to my local dealer and he said the printout was simply a change in the way they made the tractors in the factory. He said it was not a "recall" and if I wanted the new cams in my tractor I would have to pay for it. Well, so much for that idea. Is this what others are being told by their dealers?

 

[kubota_krazy]

The part numbers for the cams used are the same as listed in PSB-2005-052a. They are TC220-99990... when I push in the clutch, it now clicks once and no ratcheting sound is heard, before it made the sound everyone has referred to. I also asked the dealer to note any abnormal wear on the parts that came out and was told they had no issues. I had about 30 hard hours on my pto driving a 5' bush hog.

 

[kubota_krazy]

I took the printout of PSB-2005-052-A (which is very nice by the way) to my local dealer and he said the printout was simply a change in the way they made the tractors in the factory. He said it was not a "recall" and if I wanted the new cams in my tractor I would have to pay for it. Well, so much for that idea. Is this what others are being told by their dealers?

I think you have been mislead... I called my dealer, told him I was unsatisified with the noise, referenced the TSB. I had also called the state Kubota Service rep (you can get the number from Kubota in Calif, from the web site)they picked it up and put in the part numbers for the cams listed in PSB-2005-052a. They are TC220-99990... when I push in the clutch, it now clicks once and no ratcheting sound is heard, before it made the sound everyone has referred to. I also asked the dealer to note any abnormal wear on the parts that came out and was told they had no issues. I had about 30 hard hours on my pto driving a 5' bush hog.

 

[Goog]

I did not hear from my dealer today but they better be covered under warranty! I like the look of the new style cams. Thanks for posting the clear picture of the PSB.

I do not see how Hamer could have this updated style pto cam in his machine. It can't ratchet on decel and looks to be much stronger.

Hamer. Maybe you need these and keep your current tractor? Just a thought. I hope to get a call from my dealer tomorrow. Brian

 

[Goog]

I just noticed a difference between the PSB 2005-052-A posted earlier by MJFOX and the recent one posted by Danielterrance. The line after stating that the noise is caused by the overunning action of the pto clutch cams has been deleted.

In the earlier version of the PSB with the same date and number there is an aditional line that states Action: When a customer complaint is encountered please order and install P/N - TC220-99990 PTO Cam Kit.

That paragraph and an earlier paragrapgh about this bulletin superseding PSB-2005-052. I believe that was the oil level increase.

Both sentenances are deleted in the current version of the same bulletin with the same date and same number. Interesting!

I am getting a bad feeling here as I am sure this an expensive fix for Kubota but I also don't really care what it costs them. I want my PTO to work properly and be as strong as it should be. I gave my dealer the early copy of the PSB.

Maybe some of you already noticed this. I just thought I would point it out. Good luck to all. Brian