Info - Ford clutch discs, NAA Jubilee live PTO, etc

Here is another update on my made-in-1952 Ford NAA Jubilee. If I had known then (when the tractor was apart) what I know now, I would of
kept the optional live PTO kit. I eliminated it so the tractor would drive.

Note - the Ford-Dearborn factory manual does not show parts that I found. I suspect there was a later update and I have found NO
documentation for it.

My problem was - no wheel drive. Put the trans in any gear, and at first on cold start - nothing. After awhile it would start to move.
Problem was caused by worn out clutch disks inside an optional Dearborn live PTO kit that was dealer-installed (according to Ford).

What is not shown in the Ford manual is a valve that can be turned by hand and it over-rides the entire system and puts into a mechanical
lock-up. So even though my system was worn out - it seems if I had just turned the little lever - all would of worked as if there was NO
kit installed. I did not know this. Ford did not have it when their manual was printed. I asked here and it seems nobody here knew it
either.

I thought maybe my rig was an oddball, but it seems not. I have found several used PTO kits for sale and all I have seen have the same
parts as mine. So I am going to assume Ford had an update at some point that I have found no documentation for.

As far as the clutch disks go? YT Tractor sells them here for a 4000 Ford. They have the correct specs to fit the NAA/Jubilee Dearborn PTO
kit.

Thanks to some Chinese people, I found a great database for Ford clutch disks. I used this database to identity which disks I needed.

So are you going to repair it??? I would think it would be a nice feature plus sure would make your tractor unique.

Wow. You surly did go through a lot to find out how that thing works. You now probably know more about than anyone in the world. I think it would be neat if you repaired it, but,,,??? (;>))

Thank you again for taking the time to post the updates. As there was very little information about this clutch pack before your posts, your updates will surely save others from the same problem with this unit in the future . Now we know that parts are available which should add value to any of these clutch packs. Thank you again ?knowledge shared is knowledge gained.?

Nice work!

JDEM,

I read your post and want to make sure I understand. I am new to NAA's/Jubilees but not tractors.

Question is are you saying that ford offered a kit to make the PTO live on these tractors?

If so how do you know if your/my tractor has this option installed?

I am going to the barn now to look for that small lever now. I assume its on the right hand side under the seat near the draft lever.....

Thank you for sharing.
Hitman