When I was given an old Nikkormat, it took about five minutes to find a downloadable service manual and print out the pages I needed.

I'm having no such luck with the H1a I just acquired. It came to me with a sticking second curtain; application of a tiny bit of furnace oil to the curtain drum bushings freed it, and now it works just fine - all speeds are in the ballpark including the non-existant 1/1000, X synch works, and it sounds "right". But, it needs a complete CLA and I need to know things like how far to tension the curtains and what all the adjustment screws with red paint locking them do.