Yes I do have the manual. I used it several years ago to diagnose and replace a faulty seal ring (so much trouble for a little piece of plastic). At that time I noticed the clutch plates were worn as well as one of the little springs were missing. I put it all back together and kept my fingers crossed. It has worked well until this summer when I noticed the blades bogging down in heavy grass without any effect on the engine .....
So, i guess the first thing I need to do is new PTO clutch plates (and a new seal ring).
I can't think of anything else I should refurb while I have the rear end torn apart, Just thought I'd toss this out on the forum to see if anyone has any idea's about anything else I should look at .....