Have a look
HERE
pages 264 to 275 go through disassembly reassembly
Here's a couple more pics
I thought there was a FAQ about this but I can't find it.
When you remove the floor plate by tapping it lightly with a wood dowel or brass punch, do so over a towel and not from very high. Many a trip and trip spring has become subject of a frantic floor search unless care is taken.
