1956 International 300

I am curious how the independent pto on this type of tractor works. If anyone can provide me with a power flow diagram, or has knowledge of the operation of this system. All help would be appreciated

Starting at the clutch plate there are splines that drive a tubular shaft. This is driven all the time, and is not affected by the clutch.
This shaft drives a set of gears which in turn drive a shaft to the rear of the tractor. This may go through a seasonal disconnect on some tractors, allowing the PTO to be disconnected.
At the rear is a PTO unit. In it is a planetary gear set with the ratios designed to make 540 RPM at full load speed.
This set of gears has two friction bands around it. One rides on the outside of the gear housing and is a PTO brake. The other is connected to the gear set and when applied locks that component causing the PTO to drive attachments. The two bands are loose when the lever is in the middle of its travel, but each is locked when the lever is locked (ON, or OFF) in the latches at the limit of travel.
All looseness must be taken out of the lever and linkage for accurate and usable adjustment. See archives for Adjustment procedure, under Janicholson PTO adjust. Jim

Don't know what you do for a living, Janicholson, but if you're not a technical writer, the world is poorer for it. That's about the most succinct explanation of a mechanical system I've ever seen.

I heard a rumor that Janicholson is a college professor. He has a fine mind and is very generous in sharing it with all of us here on YT. He gave me lots of advice when my mag needed work.
Zach

I am a professor at St. Cloud State University. I am a Technology teacher I teach Technology Education graduate classes.
I also teach:
Environmental classes in resource management, and Intro to Environmental studies.
Technology classes in manufacturing and CNC.
Construction,
Computer Aided Design (ProE)
Communications Technology
Electronics/electrical power systems.
Plastics.
Intro to Aerospace, and other courses.

I have made it a policy to have all my technology students operate machines in every lab. (we have 4 labs and an imaging center (Electron Microscope and STM AFM)
We do rapid prototyping and make parts in every class. In construction we work with Habitat for Humanity, and do actual on site work for real world experiences.
I was raised on a farm and we were IH farmers.
I was a 4H member until too old then a leader until this year.
I believe in real world practices blended with theory and management skills necessary to carry one's load. I was born in 49. on top of an M and 10-20 which we traded for a Stage1 SH when I was 3. I really enjoy the fellowship of this forum, and the respect shown by regulars. Between us we have dramatic capability to make a difference in the lives of those trying to breathe life into great machines.
If you know of University age students with a desire for quality experience and skill development, send them my way. Jim

Thank you for the explanation. It has helped greatly, and is much appreciated.