New Holland 1530 PTO/hydraulic problem

Son was roto-tilling with his NH1530 - some combination of noise/jerkly/ no PTO happened.
Serious oil leak around PTO shaft.

Don't know where to look for clues or information. Searching ytmag back 3 years got nothing.
Suggestions ?

Well I suppose you cannot find anything on here because there have not been enough..yesterdays.. since your tractor was made. I have attached the CNHI online part diagram for you tractor. I do not know if it will help you much. In the transmission section look at section 07H01. It looks like they can be equipped with or without an internal over running clutch. I did not look at the clutch, does this tractor use a two stage clutch. That means you depress it part way to stop the motion of the tractor and all the way disengages the PTO drive? I also did not try to figure out how the power gets back to the PTO section. You can get a service manual for it which probably will have a trouble shooting guide. I see downloadable ones for $40 - $60. I always to people to beware of sites that offer free manuals, I have seen them give way more viruses and garbage then free manuals. I also see hard copies of manuals, one site offered one for $350 but I saw others for considerably less. To view the CNHI online diagrams I would recommend using a PC, the site just does not seem to play well with my iPhone. If you do use a phone here are some tips. The following does not apply to viewing on a PC. Since the CNHI parts site was reconfigured in early 2022 I have found that when viewing on my iPhone expanding the diagram in the box is much clearer. This is the ..preview.. box you see before you go into the actual subsection that gives the diagram and the parts list. Also holding your phone side ways lets you see more of the site navigation links at the top by the ..Home.. button. I also notice that instead of going back one page, it skips back two instead, fairly frustrating. I do not know if this applies to Android phones. Best of luck!
CNHI online parts diagrams

Thanks much for the link - I'm on an iMac and it reads it very well.

Your suggestions are appreciated.

jC