109 PTO fiber button
 

Hi,
I have to repair a PO's mod of the PTO rockshaft on a 109.
There is no place for a wear button, so I have to recreate the original release.
My question is, what size hole does the fiber button wedge into? I have the button on order, but would like to start the repair.
Thanks, Tom

How bout a picture of your pto arm?

Check very closely. Mine looked the same, as though someone welded the hole shut. I took a punch and knocked out what presumably was the old fiber button that broke off.

I've attached a pic of what mine looked like.

If, somehow, they filled the hole and cleaned it up, get a brass button from Jeff.

The mod
 

Here is the mod,
somebody thought it would be a good idea to weld this onto the original arm.
Obviously a bad choice, you can see the inevitable destruction of the PTO levers.
So, I have to cut all that off and start over with a flat piece of steel and a hole for the fiber disc.
Regards, Tom

Well then, there certainly isn't a broke off button in there...

I suppose that "worked" if the thrust button was broke...

Sorry, I can't provide the diameter, I remember it was an odd size because I was going to run a drill through mine and I didn't have a bit the exact size.

Good luck with the repair. I just rebuilt my 149 PTO, isn't too bad of a task. Let us know if you have any questions.

Hi,
As I look at this mod, a thought occurred to me, the PO probably had a bearing in that cup you see in the photo, which could have worked, but the implementation was not great and the bearing failed, taking out the Pto levers.

Thinking the same thing.
 

I thought the same thing when I saw it. I suppose it worked for a while. :biggrin2:. Problem is the flaw in the PO;s thinking. As the point of contact is on a swinging arm, perfect alignment of the bearing to the release button would be almost impossible to maintain. So as the bearing contacted the release button there would be not only a radial load but also an axial load on the bearing, IH did it right with the flat contact button.

I bought my 147 in a similar manner....the PO didn't know about maintenance of the PTO so he just kept on turning the turnbuckle- once the fiber button disintegrated it ate into the throwout levers and eventually gernaded the bearing underneath, throwing the PTO off the engine completely. The solution to fix it was to sell it.

That is screwed up bad. I would only repair that if a replacement could not be found.

I would offer to repair it for you but postage to our friends up North is "stupid expensive" thanks to the USPS rate increases.

I bought a replacement pto though out rod for $10.00 from Miller's Cub Cadet Parts