Ok, many thanks for the information.Scroll down to just below the middle of the page and there is a thread called
Bobcat Service Repair Manuals.
Near the end is a post with an address for a German site that has a control valve manual in the misc. section.
Normally, I'd parse the links, but this is such a trove of info I didn't want to risk upsetting the apple cart in case the linkage causes the sites to be taken down.
If you're anything like the rest of us, free up a couple gigs of space and fill yer boots.