Have you considered that there is a possibly, that this is all there was information wise, issued by Husqvarna at that time. Chainsaws from that date aren't rocket science, most people were way more practiced in repairing things, and an information sheet may have been all, that was deemed necessary for repairs.That is what we have found. But no factory service manual has turned up. Checked with 2 dealers that do not have anything.
A bit like today, trying to obtain a JCB or John Deere workshop manual and all the reqiuired service equipment/tools...