I hate to hijack this thread but I am in the same boat. I purchased a remanufactured Hehr powerline 190amp alternator. I have a 91 dynasty with 5.9 cummins.
I installed the new alternator, did brand new connections, wired it all up to a new external regulator.
Used Hehr's own wiring diagrams. No charging at all.
Monaco doesn't have any diagrams for the alternator before year 1995.
Would anyone have a wiring diagram or pictures of their wires I could use for comparison! Appreciate it!
My build thread is in my sig.
Cheers