CCU application by tractor

Spec sheet from 8-1959

I don't know of any such published list but there are considerably more than what Rome/KG is showing.

Thanks guys, I'm sure over time I'll pick up examples of CCUs and tractors and can make up a list starting with Rome's list. Now, if I could get series.... : )

Hey Neil,

Cable control units were add ons that each costumer chose to their own likings. I've seen a lot of D-8's and a few D-9's with #25 units. I've seen a lot more with #29 units on them. Nothing was set in stone. The 29 unit was more popular because it had live power, but still some owners put #25 units on. I have a D6-9u with a #25 unit on it and a more modern D6-b with a #23 unit on it. Why smaller on a more powerful tractor? A costumer probably added on a 23 unit he had off another tractor. So to get a list of which cable unit went on which series tractor would be difficult to do as there were so many variables people did. I've seen units on H models, and even one on a K model D8 once.
glen

Hi Glen, I kind of figured that might be the case and you've confirmed it. I wonder if Cat had, for each CCU model, the tractors for which that model was an approved (or even recommended) installation. Probably in a set of sales brochures somewhere - the strongest evidence would be for those installations that would be warrantied by Cat - Dealer-only installations I'm guessing.
The live-power installation would have commenced with the 14A as far as D8s go, so I could rule out "approved" installations of a #29 on a 2U for example - sound right?

The #29 CCU is driven from the engine pto which comes off the front timing gears (camshaft inner gear) through a shaft to the pto gears and then through open drive shaft to the CCU. There is no provision to run this arrangement on a 2U or 13A.

Interesting - OM, do you know what the hp limit would be on that live PTO on the 14A? (Or was it only intended for the CCU?)
Garlic Pete - I have a D2 just itching for some kind of powered attachment on the rear : ) Acknowledging that ultimately one can fit any attachment to any machine with enough engineering, it'd be great to have a sheet of the combinations that Cat would have approved/recommended.

I point I was trying to make is that there is nothing different internal to the CCU to make it live. The "live" comes from the tractors live shaft wither it be called a live shaft or live PTO. It appears that maybe my marbles are thinking straight. Just can't get thought to paper very clear. I know it is not practical or even possible but if a 29 were driven off a 2U rear shaft it would not be live unless the clutch was engaged. Right?