As John says above, nobody through choice would disassemble the Scorpion trigger unit, but I have had to on several occasions due to broken 'Hammers' which is why I decided to photograph the assembled unit, to try and give some idea of the correct positioning of the relevant parts, as I too can remember the nightmare experienced the first time I had to replace a broken 'Hammer', apart from the difficulty in obtaining this part.
I remember at the time buying the last of Dennis Hiller's stock along with the few left at Manchester Airguns, and I still have a few left along with other Scorpion spares.